Plastic toys basketball court is also called the all-weather sports basketball courts, base layer is a rectangular plane, solid by pre polymers, mixed polyether polyurethane, waste tire rubber, EPD M rubber granule or PU particles, pigments, additives and fillers. Plastic basketball court has good flatness, high compressive strength, hardness, flexibility, physical characteristics of stable performance, appropriate for athletes speed and skill to play, effectively improve performance, reduce the rate of fall. Plastic basketball court is composed of polyurethane material such as rubber, have certain elasticity and color, have a certain ability to resist ultraviolet ray and aging resistance force is internationally recognized as the best all-weather indoor and outdoor fun play sports ground floor material.
The main material of plastic basketball court
A two-component polyurethane slurry particle, silicon, one-component polyurethane adhesive, PU PU particles, EDPM particles, black waste tyre particles, etc.
Plastic basketball court surface maintenance
A, plastic basketball court, suitable for ordinary sports shoes, training shoes, soft rubber canvas shoes or rubber shoes.
Second, the plastic on the basketball court to ban all cars, plastic basketball court to avoid mechanical strong impact and friction.
Three, plastic basketball court edge protection, shall not be any peel, if found damaged should be repaired in a timely manner.
Fourth, avoid contact with organic solvents, chemicals.
Five, keep clean, can rinse, stick on the oil available 10% ammonia water or detergent to scrub clean.
Smoking is forbidden in six, disorderly throw cigarette butts, chewing gum or sugary drinks.
play structure
play structure
2013年12月17日星期二
Plastic basketball court
plastic chairs basketball court is a good basketball game, sports venues, has a strong elastic layer and buffer layer, wear resistance, soft hard moderate, effectively avoid sports injury. It has good elasticity, wear-resisting non-slip, a integrated surface, uniform thickness, ageing resistance, bright colors.
Plastic basketball court specifications
Olympic Games and world basketball championship basketball game venues for 28 meters in length, 15 meters wide, length can reduce other game 4 meters, width to reduce 2 meters, its change in proportion to each other. Amount of measurement from the line along the inside plastic basketball court.
All new plastic basketball court shall conform to the requirements of the fiba: 28 meters long and 15 meters wide. The height of the ceiling or minimum obstacles should be at least 7 m.
The shorter edges of a long side of the boundary line, line ends. Wire must be very clear on the pitch, the line width is 0.05 meters (5 cm).
From the touchline by drawing a parallel ends of horizontal line called the midline. Line should be extending to both sides the sidelines 0.15 meters (15 cm).
, centered on the point of the center line for 1.80 m radius amount from the outer limits of the circumference of a circle (radius), draw a circle circle said.
Three point shooting area is made up of the two limit the surface area of the arch. In the region outdoor gym equipment shooting is three points.
Distance from the free throw line draw two lines on both ends to backcourt midpoint each 3 meters (both from the outside along the quantity) of the ground area limits. Its role is: when the ball is in his control, the time duration of the restriction of team members in each other's area shall not be more than 3 seconds.
Penalty area is restricted area and a line halfway point as the center of the circle, the radius is 1.80 meters to the restricted area by semicircle region, it is a penalty area.
Plastic basketball court requires flat, do not have swelled and small pit, everyday want to maintain good, line drawing to clear.
Lighting, lighting on the match area should be at least 1500 lux, the luminosity above 1 m from the field measurement. The light should comply with the requirements on TV.
Plastic basketball court specifications
Olympic Games and world basketball championship basketball game venues for 28 meters in length, 15 meters wide, length can reduce other game 4 meters, width to reduce 2 meters, its change in proportion to each other. Amount of measurement from the line along the inside plastic basketball court.
All new plastic basketball court shall conform to the requirements of the fiba: 28 meters long and 15 meters wide. The height of the ceiling or minimum obstacles should be at least 7 m.
The shorter edges of a long side of the boundary line, line ends. Wire must be very clear on the pitch, the line width is 0.05 meters (5 cm).
From the touchline by drawing a parallel ends of horizontal line called the midline. Line should be extending to both sides the sidelines 0.15 meters (15 cm).
, centered on the point of the center line for 1.80 m radius amount from the outer limits of the circumference of a circle (radius), draw a circle circle said.
Three point shooting area is made up of the two limit the surface area of the arch. In the region outdoor gym equipment shooting is three points.
Distance from the free throw line draw two lines on both ends to backcourt midpoint each 3 meters (both from the outside along the quantity) of the ground area limits. Its role is: when the ball is in his control, the time duration of the restriction of team members in each other's area shall not be more than 3 seconds.
Penalty area is restricted area and a line halfway point as the center of the circle, the radius is 1.80 meters to the restricted area by semicircle region, it is a penalty area.
Plastic basketball court requires flat, do not have swelled and small pit, everyday want to maintain good, line drawing to clear.
Lighting, lighting on the match area should be at least 1500 lux, the luminosity above 1 m from the field measurement. The light should comply with the requirements on TV.
The characteristics of the plastic door curtain
1. Creating the best environment
PVC door curtain, make the opening of the portal facilitation, outdoor fun play the desired effect of the heat preservation, dustproof, insect-resistant, sound insulation, increase production, increase the working efficiency. Has good transparency, prevent accidents personnel vehicle collision events, improve the safety of the plant, to create its function of the working environment.
2. To achieve more functional compartment
PVC door curtain, make any factory or warehouse can easily and quickly realized much function cubicle, office, lounge etc.} {job field limit door wide, do not take up space, limited space for factory house of the rolls, as the most effective configuration to use.
3. Increase energy saving
PVC door curtain, make the portal open and close very quickly, and only opens the size of in and out of the body, air conditioning heating loss to minimum, significantly improve the efficacy of cold room heating, reduce the refrigerator running hours, don't consume electricity, no noise, saving energy save electricity as much as 50%
4. The economy of high durability
PVC door curtain, according to the loading, remove all very simple and easy, in accordance with the existing structure, no modification can be set, low cost. Movable type hoisting method, durable, no maintenance and management costs, is for the most economical and durable elastic portal.
Low applicable objects
Freezer cold storage warehouse industry distribution center ice-making food factory, feed factory chemical pharmaceutical factory electronic machinery factory factory factory welding factory fire prevention printing factory sterile room computer room office supermarket fresh market dining-room kitchen and so on, any size, shape, the discrepancy of the portal or machine compartment all can use.
Low insect-resistant effect
Insects and insect light induction, is a compound eye to see objects, insect-resistant PVC door curtain special handling to prevent ultraviolet orange Outdoor fitness equipment, can send out a special light, make insects move slow rather than close, to achieve the effect of insects.
Low sound insulation effect
Reduce noise decibel more than 15 db, to prevent noise interference, and office machines compartment, the function of the maximum.
Low antistatic effect
Do not produce electrostatic effect, and keep highly charged to prevent persistent, the most suitable for static factories use is forbidden.
Effect of low fire
Flame retardant, the Japanese JISA chemical inspection association in 1322-1966 fire secondary qualification, Japan fire retardant association the AT - 880041 flame retardant test qualified, the most suitable coating, welding, chemical factories and other places of high risk.
Effect of low hardy
In - 50 degrees c retains a highly flexible personnel in and out easily, air tightness, prevent the leakage of air conditioning energy saving.
PVC door curtain, make the opening of the portal facilitation, outdoor fun play the desired effect of the heat preservation, dustproof, insect-resistant, sound insulation, increase production, increase the working efficiency. Has good transparency, prevent accidents personnel vehicle collision events, improve the safety of the plant, to create its function of the working environment.
2. To achieve more functional compartment
PVC door curtain, make any factory or warehouse can easily and quickly realized much function cubicle, office, lounge etc.} {job field limit door wide, do not take up space, limited space for factory house of the rolls, as the most effective configuration to use.
3. Increase energy saving
PVC door curtain, make the portal open and close very quickly, and only opens the size of in and out of the body, air conditioning heating loss to minimum, significantly improve the efficacy of cold room heating, reduce the refrigerator running hours, don't consume electricity, no noise, saving energy save electricity as much as 50%
4. The economy of high durability
PVC door curtain, according to the loading, remove all very simple and easy, in accordance with the existing structure, no modification can be set, low cost. Movable type hoisting method, durable, no maintenance and management costs, is for the most economical and durable elastic portal.
Low applicable objects
Freezer cold storage warehouse industry distribution center ice-making food factory, feed factory chemical pharmaceutical factory electronic machinery factory factory factory welding factory fire prevention printing factory sterile room computer room office supermarket fresh market dining-room kitchen and so on, any size, shape, the discrepancy of the portal or machine compartment all can use.
Low insect-resistant effect
Insects and insect light induction, is a compound eye to see objects, insect-resistant PVC door curtain special handling to prevent ultraviolet orange Outdoor fitness equipment, can send out a special light, make insects move slow rather than close, to achieve the effect of insects.
Low sound insulation effect
Reduce noise decibel more than 15 db, to prevent noise interference, and office machines compartment, the function of the maximum.
Low antistatic effect
Do not produce electrostatic effect, and keep highly charged to prevent persistent, the most suitable for static factories use is forbidden.
Effect of low fire
Flame retardant, the Japanese JISA chemical inspection association in 1322-1966 fire secondary qualification, Japan fire retardant association the AT - 880041 flame retardant test qualified, the most suitable coating, welding, chemical factories and other places of high risk.
Effect of low hardy
In - 50 degrees c retains a highly flexible personnel in and out easily, air tightness, prevent the leakage of air conditioning energy saving.
Plastic technology related instructions
Plastic technology
Card type 094 strategic missile submarines of the second generation Chinese navy strategic missile submarines, but given the nature of the test of the 092, 094 is, in fact, children playground first strategic missile submarines responsible for combat duty. The successful development of 094 changed China single nuclear counterattack means, improve the efficiency of China's nuclear counterattack, make China become a veritable nuclear powers. Directory profile sonar equipment layout and strategic nuclear forces mute automation level, armament, communication system is a big improvement wave type submarine-launched missiles wave type 2 submarine-launched missiles phenomenon of curvature of the nuclear submarine threat in the western media in the eyes of a Chinese nuclear submarine has always been a concern with "094" the United States and the world's major strategic nuclear submarine main performance contrast type 094 strategic missile submarines
Introduction to the
Strategic missile plastic chairs is the symbol of the nuclear power equipment, is the trinity, an important part of nuclear power is the strongest ability to survive the nuclear equipment. Its submarine-launched missiles carry bear the second nuclear strike missions, deterrence was stronger than ground-based and space-based weapons. Type 094 strategic missile submarines 09 iv is the Chinese navy's second generation of strategic missile submarines, but given the nature of the test of the 09 ii, paragraph 09 iv is, in fact, China's first strategic missile submarines responsible for combat duty.
equipment
094 as a ballistic missile submarines will be equipped with the most advanced wave - type 2 ballistic missile. The missile maximum range of 8000 kilometers, the guide type warhead, portable 3-6 points warhead, each warhead explosion equivalent to 2
Card type 094 strategic missile submarines of the second generation Chinese navy strategic missile submarines, but given the nature of the test of the 092, 094 is, in fact, children playground first strategic missile submarines responsible for combat duty. The successful development of 094 changed China single nuclear counterattack means, improve the efficiency of China's nuclear counterattack, make China become a veritable nuclear powers. Directory profile sonar equipment layout and strategic nuclear forces mute automation level, armament, communication system is a big improvement wave type submarine-launched missiles wave type 2 submarine-launched missiles phenomenon of curvature of the nuclear submarine threat in the western media in the eyes of a Chinese nuclear submarine has always been a concern with "094" the United States and the world's major strategic nuclear submarine main performance contrast type 094 strategic missile submarines
Introduction to the
Strategic missile plastic chairs is the symbol of the nuclear power equipment, is the trinity, an important part of nuclear power is the strongest ability to survive the nuclear equipment. Its submarine-launched missiles carry bear the second nuclear strike missions, deterrence was stronger than ground-based and space-based weapons. Type 094 strategic missile submarines 09 iv is the Chinese navy's second generation of strategic missile submarines, but given the nature of the test of the 09 ii, paragraph 09 iv is, in fact, China's first strategic missile submarines responsible for combat duty.
equipment
094 as a ballistic missile submarines will be equipped with the most advanced wave - type 2 ballistic missile. The missile maximum range of 8000 kilometers, the guide type warhead, portable 3-6 points warhead, each warhead explosion equivalent to 2
Plastic badminton floor
2, qualitative light, thin, badminton special floor only 2 mm to 9 mm thickness, weight per square meter only 1-4 kg, convenient mobile 3, dimensional stability, Jacques badminton special floor added glass fiber layer at the grass-roots level, make its adhesive through special toddler playgrounds technology, product excellent dimensional stability, suitable for use in the ground of the heat bilges cold shrink, even if the ground with large moisture on the floor, also will not deformation, can maintain the original state for a long time, will not crack, not shrink. 4, super wear-resistant: badminton special floor surface with a layer of a special transparent wear-resisting layer by high-tech processing, special surface treatment of super wear-resisting layer fully guarantees the excellent wear resistance of the ground material, Jacques plastic floor floor has a special wear-resisting layer, long service life. The wear resistance of high strength guarantee the service life of the floor, generally at about seven to eight years. 5, high flexibility and strong shock: badminton special floor board quality of a material soft elastic is very good, so under the impact of the weights have good elastic recovery, better quality of a material soft elastic coil floor, PVC flooring has a strong Gym equipment resistance at the same time, the heavy impact damage has a strong elastic recovery, not cause damage. Excellent PVC floor can maximum reduce the harm to human body, and to spread the impact on the foot, the latest research data show that in the space of foot traffic pavement after excellent PVC floor, the ratio of its fall and injured than other floor falling nearly 70%. 6, super non-slip: badminton special floor surface wear-resisting layer has special skid resistance, and compared with common ground material, PVC floor, in the case of glue water waste more acerbity feeling, more is not easy to, the more the water more astringent. 7, fire retardant: quality qualified badminton special floor fire index of B1 level, through the fire test, leave the fire automatically extinguished, meet the national standard requires 8, waterproof and moistureproof, badminton special floor should not long be soaked won't damage; And will not happen because of high humidity and mildew.
Rubber plastic movement
Supply Plastic toys floor badminton floor badminton badminton room floor badminton ground rubber for YK (Jacques) badminton special floor advantage: super wear-resistant, non-slip, flame retardant, the rebound effect is good, green environmental protection, easy to clean. YK (Jacques) special floor badminton super wear resistance, surface has wear-resisting layer, using high wear-resisting layer thickness UV treatment, rabbit hunting, the fouling resistance, will not absorb light and reflective dazzling. YK (Jacques) badminton special floor is easy to clean and environmental health, the foot feels comfortable, good elasticity. Have antibacterial treatment, kill mold characteristics, easy installation, stable layer structure, internal adopts advanced glass fiber does not crack YK Jacques badminton special floor wear-resisting surface layer of decorative pattern design, the sole moment already ground, prevent slippery and can follow one's inclinations to pass strong momentum. YK Jacques badminton special ground floor surface through special processing, with bright lighting, glance will not absorb light and dazzling, can better protect the athlete's eyes, not easily get tired. Jacques YK badminton special floor humanized design combination, different ground color feeling, prevent slippery and response to the strong power, prevent scratch textures, new technology development of PVC foaming buffer layer reliable safeguard for health campaigns, provide excellent for school playground athletes, general fitness movement buffer protection, to minimize the damage of athletes. Jacques YK badminton special floor surface of irregular circular arc edge texture of human body engineering design, make the sliding coefficient as the best value, make the athletes has better ability of activity, for start, jump, slide, brake and so on all kinds of professional dramatic techniques to provide extremely has the force of elastic dynamic structure. YK Jacques badminton special floor with high and new technology of antimicrobial function, with non-toxic, tasteless, green environmental protection, waterproof, prevent slippery, prevent mould features, use this product will make your space more safe and healthy. Badminton and advantages: 1 badminton special floor of green environmental protection high-tech antibacterial function, with non-toxic, tasteless, green environmental protection, waterproof, prevent slippery, prevent mold, etc.
Plastic pallet related instructions
Play structure tray
Card this is mesh type shelves series compared with wooden pallets, plastic tray, integral sex is good health and clean, easy to wash disinfection, have qualitative light, in use without stinging, acid and alkali resistant, no mildew etc, its service life is 5 to 7 times that of the wooden pallets. In addition, the plastic tray conform to the requirements of environmental protection, waste plate materials can be recycled. Directory introduction of plastic tray plastic tray (PlasticPallet) the characteristics of the plastic tray, plastic tray faults classification the advantages of plastic tray how to correctly use plastic pallet, pallet load quality two, three pallets of goods packed way, the fixed way four carrying cargo pallets, pallet loading cargo protection and reinforcement five, pallets and forklifts, shelves, etc with the considerations of plastic tray production technology and key points
Introduction of plastic tray
Is the plastic tray, Plastic toys tray is use thermoplastic plastics such as PE, PP, add some additives, improve performance by injection molding, blow molding process. As the production conditions, storage conditions, the requirement of increasing the process control, quality management, because the wooden pallets in health status and unable to overcome the limitations of standard production, plastic tray, and quickly occupied a place. At present has been widely used in machinery, electronics, food, medicine, clothing, etc. Compared with the wooden tray, plastic tray, integral sex is good health and clean, easy to wash disinfection, have qualitative light, in use without stinging, acid and alkali resistant, no mildew etc, its service life is 5 to 7 times that of the wooden pallets.
Card this is mesh type shelves series compared with wooden pallets, plastic tray, integral sex is good health and clean, easy to wash disinfection, have qualitative light, in use without stinging, acid and alkali resistant, no mildew etc, its service life is 5 to 7 times that of the wooden pallets. In addition, the plastic tray conform to the requirements of environmental protection, waste plate materials can be recycled. Directory introduction of plastic tray plastic tray (PlasticPallet) the characteristics of the plastic tray, plastic tray faults classification the advantages of plastic tray how to correctly use plastic pallet, pallet load quality two, three pallets of goods packed way, the fixed way four carrying cargo pallets, pallet loading cargo protection and reinforcement five, pallets and forklifts, shelves, etc with the considerations of plastic tray production technology and key points
Introduction of plastic tray
Is the plastic tray, Plastic toys tray is use thermoplastic plastics such as PE, PP, add some additives, improve performance by injection molding, blow molding process. As the production conditions, storage conditions, the requirement of increasing the process control, quality management, because the wooden pallets in health status and unable to overcome the limitations of standard production, plastic tray, and quickly occupied a place. At present has been widely used in machinery, electronics, food, medicine, clothing, etc. Compared with the wooden tray, plastic tray, integral sex is good health and clean, easy to wash disinfection, have qualitative light, in use without stinging, acid and alkali resistant, no mildew etc, its service life is 5 to 7 times that of the wooden pallets.
2013年12月16日星期一
Basic knowledge of plastic processing, PE plastic (2)
Chemical name: polyethylene
English name: Polyethylene (PE)
Specific gravity: 0.94 to 0.96 g/cm3 molding shrinkage rate: 1.5 3.6% molding temperature: 140-220 ℃
Characteristics: corrosion resistance, good electrical insulation (especially high frequency insulation), chloride, chemical crosslinking and irradiation crosslinking modification, glass fiber reinforced. The melting point of low pressure polyethylene, rigidity, hardness and high strength, small water imbibition, good Amusement equipment properties and radiation resistance; High pressure polyethylene softness, elongation, impact strength and permeability is better; Ultra-high molecular weight polyethylene high impact strength, fatigue resistance, wear resistance, low pressure polyethylene to make corrosion resistant parts and insulation parts; High pressure polyethylene thin films are suitable for, etc.; Ultra-high molecular weight polyethylene is suitable for making shock absorption, abrasion resistance and transmission parts.
Molding characteristics:
Small crystal material, moisture absorption, need not to fully dry, liquidity excellent liquidity is spring ride to pressure, molding time with high-pressure injection, uniform temperature, filling speed, pressure maintaining full. Should not be in direct gate, to prevent uneven contraction, the internal stress increased. Pay attention to choose the gate location, to prevent shrinkage and distortion.
2. Scope and contraction value is big, obvious directivity, easy to deformed. Cooling speed should be slow, mold slag hole, and the cooling system.
3. The heating time shoulds not be too long, otherwise it will decompose.
4. Soft plastic parts have shallow lateral recess, forced demoulding.
5. Melting body fracture may occur, unfavorable contact with organic solvent, to prevent cracking.
English name: Polyethylene (PE)
Specific gravity: 0.94 to 0.96 g/cm3 molding shrinkage rate: 1.5 3.6% molding temperature: 140-220 ℃
Characteristics: corrosion resistance, good electrical insulation (especially high frequency insulation), chloride, chemical crosslinking and irradiation crosslinking modification, glass fiber reinforced. The melting point of low pressure polyethylene, rigidity, hardness and high strength, small water imbibition, good Amusement equipment properties and radiation resistance; High pressure polyethylene softness, elongation, impact strength and permeability is better; Ultra-high molecular weight polyethylene high impact strength, fatigue resistance, wear resistance, low pressure polyethylene to make corrosion resistant parts and insulation parts; High pressure polyethylene thin films are suitable for, etc.; Ultra-high molecular weight polyethylene is suitable for making shock absorption, abrasion resistance and transmission parts.
Molding characteristics:
Small crystal material, moisture absorption, need not to fully dry, liquidity excellent liquidity is spring ride to pressure, molding time with high-pressure injection, uniform temperature, filling speed, pressure maintaining full. Should not be in direct gate, to prevent uneven contraction, the internal stress increased. Pay attention to choose the gate location, to prevent shrinkage and distortion.
2. Scope and contraction value is big, obvious directivity, easy to deformed. Cooling speed should be slow, mold slag hole, and the cooling system.
3. The heating time shoulds not be too long, otherwise it will decompose.
4. Soft plastic parts have shallow lateral recess, forced demoulding.
5. Melting body fracture may occur, unfavorable contact with organic solvent, to prevent cracking.
Plastic moulds, rounding
1. Start with spring section: generally speaking, there are square and merry go round, round me, because how long how long it would take that kind of cut. Grade 3 or 4 grade boss know best how to save cost, today to talk about design benchmark is not suitable for.
2. The spring to first understand the basic specifications: freedom, long long compaction, load and maximum compression spring rate. (this is for mould design, agencies have other considerations, but also very much the same).
3. Red, blue and yellow various load difference, no longer say more look-up table, please. I want to say is the spring compression ratio, the characteristics of the spring is as long as the actuator stroke more than elastic limit, the life is a sharp decline, speak only blue, his spring compression rate of 40%, if the design of the spring compression ratio less than 40% (35% give a safety factor), hang up soon.
4. Everyone at the top of the design of the plate spring have considering to stop travel restrictions, have given to a modest increase in the thickness of the template, you consider how much to the top plate spring from the parting surface, strength and bite (ENGAGE) how long the appropriate return pin.
For the above mentioned some good is almost the actual experience, for a beginner is a bit "zhang two Jin Gangmo is not the end", and mold the fitness really city more read more contact with the site, so the accumulation of experience can truly become a master, because... Mould is very and love and hate and afraid of being hurt, really hit no predecessors or friends to help, just want to commit suicide, below is my personal experience in the design process, feel good can be for reference, please comment: when bad
Mold design (or review) with customers
1 part material (ABS.. PC.. POM...)
2. The shrinkage
3. The mold cavity number
4. The mould structure is solid (slider, oblique pin....)
5. Whether mold steel and heat treatment (NAK - 80.. SKD - 61.. P20.......)
6. Make mould standard (DME.. HASCO.. FUTABA.. homemade......).
7. Any mirrors
8. If there is easily damaged parts
9. The tolerance requirements
10. Feed way
11. The temperature control method
12. The machine has unlimited size
13. The mold delivery, and cost requirements
14. Can mold parts to standard parts replacement
15. The presence of auxiliary institutions (hydraulic. Air pressure, temperature sensors...).
16. The presence of the accessory parts (such as embedded injection parts)
# 17. Acupuncture point position
2. The spring to first understand the basic specifications: freedom, long long compaction, load and maximum compression spring rate. (this is for mould design, agencies have other considerations, but also very much the same).
3. Red, blue and yellow various load difference, no longer say more look-up table, please. I want to say is the spring compression ratio, the characteristics of the spring is as long as the actuator stroke more than elastic limit, the life is a sharp decline, speak only blue, his spring compression rate of 40%, if the design of the spring compression ratio less than 40% (35% give a safety factor), hang up soon.
4. Everyone at the top of the design of the plate spring have considering to stop travel restrictions, have given to a modest increase in the thickness of the template, you consider how much to the top plate spring from the parting surface, strength and bite (ENGAGE) how long the appropriate return pin.
For the above mentioned some good is almost the actual experience, for a beginner is a bit "zhang two Jin Gangmo is not the end", and mold the fitness really city more read more contact with the site, so the accumulation of experience can truly become a master, because... Mould is very and love and hate and afraid of being hurt, really hit no predecessors or friends to help, just want to commit suicide, below is my personal experience in the design process, feel good can be for reference, please comment: when bad
Mold design (or review) with customers
1 part material (ABS.. PC.. POM...)
2. The shrinkage
3. The mold cavity number
4. The mould structure is solid (slider, oblique pin....)
5. Whether mold steel and heat treatment (NAK - 80.. SKD - 61.. P20.......)
6. Make mould standard (DME.. HASCO.. FUTABA.. homemade......).
7. Any mirrors
8. If there is easily damaged parts
9. The tolerance requirements
10. Feed way
11. The temperature control method
12. The machine has unlimited size
13. The mold delivery, and cost requirements
14. Can mold parts to standard parts replacement
15. The presence of auxiliary institutions (hydraulic. Air pressure, temperature sensors...).
16. The presence of the accessory parts (such as embedded injection parts)
# 17. Acupuncture point position
Plastic mold design experience
Mold design many factions, is the collection of all benchmark can be summed up in the mold design, mold design for a mind beginners some principles.
First of all, I want to talk about which side slide block should be (day, (left) or the operation side (right)).
1. Better, not up and down.
2. Better not.
To explain, to talk about the first side to open mould after the slider position basic requirements:
1. About: positioning bead (clamp).
2. : the spring.
3. Bottom: stop.
Above each side to locate more beads, spring, block is of course. According to positioning the basic requirements in the slider: spring is one of the most unreliable components, especially nowadays many good teacher or boss mould technology (even present design) didn't know much impact on life of spring spring spring compression rate; It also says side is the worst choice tomorrow.
But why better fit around? In two ways:
1. No mold maintenance, side of the Playground slide will make the dead, disassembling and not of men and dangerous, even the mold master a accidentally forget to stop or screw, the first mould slider hanging down.
2. Unless you know the finished product out, otherwise when the finished product or material head just card on the slider, disaster happens.
Above were all good in general case reference only, of course, if you encounter with 60 cm side will promptly hydraulic cylinder was placed days (the reason is simple: mold requirement).
Talked about these actually want to tell the mold design beginners, don't put the mould design as a 3 d will dismantle the pass.
First of all, I want to talk about which side slide block should be (day, (left) or the operation side (right)).
1. Better, not up and down.
2. Better not.
To explain, to talk about the first side to open mould after the slider position basic requirements:
1. About: positioning bead (clamp).
2. : the spring.
3. Bottom: stop.
Above each side to locate more beads, spring, block is of course. According to positioning the basic requirements in the slider: spring is one of the most unreliable components, especially nowadays many good teacher or boss mould technology (even present design) didn't know much impact on life of spring spring spring compression rate; It also says side is the worst choice tomorrow.
But why better fit around? In two ways:
1. No mold maintenance, side of the Playground slide will make the dead, disassembling and not of men and dangerous, even the mold master a accidentally forget to stop or screw, the first mould slider hanging down.
2. Unless you know the finished product out, otherwise when the finished product or material head just card on the slider, disaster happens.
Above were all good in general case reference only, of course, if you encounter with 60 cm side will promptly hydraulic cylinder was placed days (the reason is simple: mold requirement).
Talked about these actually want to tell the mold design beginners, don't put the mould design as a 3 d will dismantle the pass.
Plastic products on coating thickness measurement problem
1. The transfer method was used to measure the points for attention during the coating on plastic playground products
A survey of coating on plastic products. Such as using the ultrasonic measurement, often occurs because of coating and substrate miscibility and no better acoustic reflector, which leads to failure or read value serious deviation measurement. If using this method, also has to use more inconvenient and reading difficulties. So now in general use portable electronics factory transfer method measuring coating on plastic products.
After many years of practice, we recommend the first article products cover a number of small the standard thickness of polyester film (about 100 microns, my company has specialized customized supply), then the paper crepe tape pressure at both ends, set aside the middle section. Put the product in normal spraying, baking spray line.
, remove it after the completion of the products with paint film of the polyester film, with a zero of iron plate zero (or aluminum plate) substrate with magnetic induction (or eddy current method) film thickness gauge measured part coated and uncoated part, the difference between the two is the coating thickness.
Due to use the same park bench of zero board, so the electromagnetic induction reference point will not change, so as to ensure the measurement benchmark unchanged, ensure accuracy of the measurement. In addition, particularly because of the difference method is used, so the instrument and the error of zero board will be offset by subtraction. Thus greatly reduce the claim to the zero plate and the precision of instrument. If use our company design and manufacture of precision PHYNIX stents and Germany company produces the thickness gauge, repeatability can be raised to 0.2 microns.
Also have some factories still adopt the method of pasting iron and aluminum, it's important to note that each variation of surface roughness of iron or aluminium, convex concave deformation, thickness change will cause electromagnetic induction change reference point, this may cause measurement error and repeatability is poorer. Need to pay attention to avoid it.
2. The coating thickness measurement of other problems
A. coating baking after curing, and a slow process, continue to curing due to the constraints, the factory will be measured after general to remove products. Often measured again like a day or two days later, the thickness will be less 1 ~ 3 microns.
B. as for thickness slice method, preparation section is very important. Due to the soft base material and coating, cutting deformation may cause the coating to the substrate or base material extrusion occupy in the direction of coating, resulting in the reading small or large.
Another paint coating process is liquid dot after sputtering to base material, the flow flat, crosslinking, curing film. Section must be a state of surface of ups and downs, the exterior point of view, presents the orange peel phenomenon. Transfer method of thickness is randomly take on plane, or averaged them again, sectioning is cut in a straight line section on microscopic visual reading. For both take different points method, location, the reading will be different. But both have reference value to each other, can be analyzed to find out reasons.
A survey of coating on plastic products. Such as using the ultrasonic measurement, often occurs because of coating and substrate miscibility and no better acoustic reflector, which leads to failure or read value serious deviation measurement. If using this method, also has to use more inconvenient and reading difficulties. So now in general use portable electronics factory transfer method measuring coating on plastic products.
After many years of practice, we recommend the first article products cover a number of small the standard thickness of polyester film (about 100 microns, my company has specialized customized supply), then the paper crepe tape pressure at both ends, set aside the middle section. Put the product in normal spraying, baking spray line.
, remove it after the completion of the products with paint film of the polyester film, with a zero of iron plate zero (or aluminum plate) substrate with magnetic induction (or eddy current method) film thickness gauge measured part coated and uncoated part, the difference between the two is the coating thickness.
Due to use the same park bench of zero board, so the electromagnetic induction reference point will not change, so as to ensure the measurement benchmark unchanged, ensure accuracy of the measurement. In addition, particularly because of the difference method is used, so the instrument and the error of zero board will be offset by subtraction. Thus greatly reduce the claim to the zero plate and the precision of instrument. If use our company design and manufacture of precision PHYNIX stents and Germany company produces the thickness gauge, repeatability can be raised to 0.2 microns.
Also have some factories still adopt the method of pasting iron and aluminum, it's important to note that each variation of surface roughness of iron or aluminium, convex concave deformation, thickness change will cause electromagnetic induction change reference point, this may cause measurement error and repeatability is poorer. Need to pay attention to avoid it.
2. The coating thickness measurement of other problems
A. coating baking after curing, and a slow process, continue to curing due to the constraints, the factory will be measured after general to remove products. Often measured again like a day or two days later, the thickness will be less 1 ~ 3 microns.
B. as for thickness slice method, preparation section is very important. Due to the soft base material and coating, cutting deformation may cause the coating to the substrate or base material extrusion occupy in the direction of coating, resulting in the reading small or large.
Another paint coating process is liquid dot after sputtering to base material, the flow flat, crosslinking, curing film. Section must be a state of surface of ups and downs, the exterior point of view, presents the orange peel phenomenon. Transfer method of thickness is randomly take on plane, or averaged them again, sectioning is cut in a straight line section on microscopic visual reading. For both take different points method, location, the reading will be different. But both have reference value to each other, can be analyzed to find out reasons.
Basic knowledge of the plastic moulds and technology
applications
Hot runner system, also called hot runner system, mainly composed of hot runner, hot water but, temperature control box. Our common hot runner system there is a single point of hot runner and hot runner 2 more forms. Single point gate is to use a single hot runner of the molten plastic toys into the cavity directly, it is a single cavity of a single gate of plastic mold; Multipoint hot runner by hot water but the molten material branch to various points in the hot runner set into the cavity, it is suitable for single cavity more into the material or multi-cavity mold.
Pieces of hot runner system advantage
(1) the material floolwing, don't need after processing, the whole forming process is fully automated, save the working time, improve work efficiency.
(2) the pressure loss is small. Hot runner temperature and the temperature of the plastic injection machine nozzle is equal, to avoid the surface of the material in the runner, condensate loss in injection pressure.
(3) material floolwing repeated use can make plastic performance degradation, and the use of hot runner system is not shuikou expected, can reduce the loss of raw materials, thereby reducing the product cost. Uniform temperature and pressure in the cavity, plastic stress is small, uniform density, in smaller injection pressure, the shorter the forming time, injection molding injection system is better than the general products. For Outdoor fitness equipment, thin pieces, large plastic parts or high demand parts can show its advantage more, and with small models produce larger products.
(4) hot nozzle adopt standardization, seriation design, equipped with a variety of selection of the nozzle head, good interchangeability. Unique design and processing of electric heating circle, can achieve uniform heating temperature, long service life. Hot runner system is equipped with heat flow but, thermostat, etc., the design is exquisite, species diversity, use convenient, stable and reliable quality.
Pieces of hot runner system application deficiency
(1) the whole mould height increasing, by adding hot water but, mold the overall height increase.
(2) the thermal radiation is hard to control, is the biggest trouble of hot runner gating heat loss, is a major issue to solve.
(3) thermal expansion, heat bilges cold shrink is to consider when we design problem.
(4) the mold manufacturing costs have gone up, hot runner system standard accessories price is higher, affect the popularity of hot runner mold.
Hot runner system, also called hot runner system, mainly composed of hot runner, hot water but, temperature control box. Our common hot runner system there is a single point of hot runner and hot runner 2 more forms. Single point gate is to use a single hot runner of the molten plastic toys into the cavity directly, it is a single cavity of a single gate of plastic mold; Multipoint hot runner by hot water but the molten material branch to various points in the hot runner set into the cavity, it is suitable for single cavity more into the material or multi-cavity mold.
Pieces of hot runner system advantage
(1) the material floolwing, don't need after processing, the whole forming process is fully automated, save the working time, improve work efficiency.
(2) the pressure loss is small. Hot runner temperature and the temperature of the plastic injection machine nozzle is equal, to avoid the surface of the material in the runner, condensate loss in injection pressure.
(3) material floolwing repeated use can make plastic performance degradation, and the use of hot runner system is not shuikou expected, can reduce the loss of raw materials, thereby reducing the product cost. Uniform temperature and pressure in the cavity, plastic stress is small, uniform density, in smaller injection pressure, the shorter the forming time, injection molding injection system is better than the general products. For Outdoor fitness equipment, thin pieces, large plastic parts or high demand parts can show its advantage more, and with small models produce larger products.
(4) hot nozzle adopt standardization, seriation design, equipped with a variety of selection of the nozzle head, good interchangeability. Unique design and processing of electric heating circle, can achieve uniform heating temperature, long service life. Hot runner system is equipped with heat flow but, thermostat, etc., the design is exquisite, species diversity, use convenient, stable and reliable quality.
Pieces of hot runner system application deficiency
(1) the whole mould height increasing, by adding hot water but, mold the overall height increase.
(2) the thermal radiation is hard to control, is the biggest trouble of hot runner gating heat loss, is a major issue to solve.
(3) thermal expansion, heat bilges cold shrink is to consider when we design problem.
(4) the mold manufacturing costs have gone up, hot runner system standard accessories price is higher, affect the popularity of hot runner mold.
Plastic mold technology application
Pieces of injection molding is the most widely used in plastics processing methods. This method is applicable to all thermoplastics and part of thermosetting plastics, plastic kids playgrounds made the great number of them is the other forming methods of dust, as the main tool of injection molding processing, one of the injection mould, the quality of precision, manufacturing cycle and injection molding production efficiency in the process of the level of high and low, directly affect the product quality, yield, cost and product updates, at the same time also determines the enterprise in the market competition ability and speed of reaction.
Pieces of injection mold is made up of several steel plate with various parts, basic is divided into:
A forming device (die and punch)
B positioning device (guide pin, guide sleeve)
C fixtures (h board, code die hole)
D cooling system (hole)
E thermostatic system (heating tube, hot line)
F jungle playground system (pumping of nozzle hole flow channel slot and port holes)
G ejection system (thimble, top stick)
5, depending on the system of pouring system type of mould can be divided into three categories:
(1) the gate of mould, the runner and gate on the parting line, together with the product in the mould stripping, the simplest design, easy processing, low cost, so more people using gate system operation.
(2) nozzle mould: the runner and gate is not the parting line, generally directly on the product, so to design a set of shuikou parting line, design is relatively complex, processing more difficult, often depending on the product requirements to choose fine nozzle system.
(3) the hot runner mold: this kind of mold is approximately the same structure and fine shuikou, the biggest difference is that flow into one or more of the temperature of heat flow but and heat pumping mouth, no cold feeding demoulding, runner and gate directly on the product, so the port don't need mold release, also known as no runner system, this system can save raw materials, applicable to the raw material is more expensive, high requirement of products, design and processing difficulties, mould cost is higher.
Pieces of injection mold is made up of several steel plate with various parts, basic is divided into:
A forming device (die and punch)
B positioning device (guide pin, guide sleeve)
C fixtures (h board, code die hole)
D cooling system (hole)
E thermostatic system (heating tube, hot line)
F jungle playground system (pumping of nozzle hole flow channel slot and port holes)
G ejection system (thimble, top stick)
5, depending on the system of pouring system type of mould can be divided into three categories:
(1) the gate of mould, the runner and gate on the parting line, together with the product in the mould stripping, the simplest design, easy processing, low cost, so more people using gate system operation.
(2) nozzle mould: the runner and gate is not the parting line, generally directly on the product, so to design a set of shuikou parting line, design is relatively complex, processing more difficult, often depending on the product requirements to choose fine nozzle system.
(3) the hot runner mold: this kind of mold is approximately the same structure and fine shuikou, the biggest difference is that flow into one or more of the temperature of heat flow but and heat pumping mouth, no cold feeding demoulding, runner and gate directly on the product, so the port don't need mold release, also known as no runner system, this system can save raw materials, applicable to the raw material is more expensive, high requirement of products, design and processing difficulties, mould cost is higher.
Basic knowledge of the plastic moulds
1, the introduction
That we use in our daily life and production to the various tools and products, to the base of the machine tool, the fuselage shell, small to a germ head screws, buttons, and all kinds of household appliances shell, which has close relation with the mould. The shape of the die decides the shape of the products, precision mold processing quality and determines the quality of these products. Because the material of all kinds of products, appearance, specifications, and different purposes of mould into casting die, forging die, die-casting mould, stamping mould of plastic moulds, such as, and plastic toys moulds.
In recent years, with the rapid development of plastic industry and general engineering plastics in the aspects of improving strength and precision, the application range of the plastic products are also constantly expanding, such as household appliances, instrumentation, construction equipment, automotive industry, daily hardware, and many other fields, proportion of plastics is rapidly increasing. A reasonable design of plastic parts often can replace more traditional metal pieces. Industrial products and daily products rising trend of plastic.
General definition: 2, die in industrial production, with all kinds of press and in a pressure on the special tools, metal or nonmetal materials through the pressure to make the required shape parts or products, this kind of special tools are collectively referred to as mold.
3, the injection molding process description: mold is a kind of plastic products production tools. It consists of several groups of parts, the combination with molding cavity. Clamped injection, mold in injection molding machine, molten plastic injection molding die cavity, and the cavity cooling stereotypes, then separated from mould, via ejection system will leave mould products out of the cavity roof, the mould closed again for the next injection, the injection molding process is a cycle.
4, mold of the general classification: can be divided into plastic mold and plastic mold:
Plastic injection mold are: (1) the seesaw die, forging die, stamping mold, die-casting mould, etc.
A. casting mould, cast iron platform - tap
B. forging die, car body
C. stamping mold, computer panels
D. die mold, super alloy, the cylinder body
(2) plastic moulds according to different production process and production product is divided into:
A. injection molding mould, TV shell, keyboard button (the most common used)
B. blow mold - beverage bottle
C. compression molding mold, bakelite switches, scientific heat-trapping ceramic disc
D. transfer molding mould, IC products
E. extrusion die - tube of glue, plastic bags
F. thermoforming mould molding, transparent packaging shell
G. rotational molding mold, soft plastic doll toys
That we use in our daily life and production to the various tools and products, to the base of the machine tool, the fuselage shell, small to a germ head screws, buttons, and all kinds of household appliances shell, which has close relation with the mould. The shape of the die decides the shape of the products, precision mold processing quality and determines the quality of these products. Because the material of all kinds of products, appearance, specifications, and different purposes of mould into casting die, forging die, die-casting mould, stamping mould of plastic moulds, such as, and plastic toys moulds.
In recent years, with the rapid development of plastic industry and general engineering plastics in the aspects of improving strength and precision, the application range of the plastic products are also constantly expanding, such as household appliances, instrumentation, construction equipment, automotive industry, daily hardware, and many other fields, proportion of plastics is rapidly increasing. A reasonable design of plastic parts often can replace more traditional metal pieces. Industrial products and daily products rising trend of plastic.
General definition: 2, die in industrial production, with all kinds of press and in a pressure on the special tools, metal or nonmetal materials through the pressure to make the required shape parts or products, this kind of special tools are collectively referred to as mold.
3, the injection molding process description: mold is a kind of plastic products production tools. It consists of several groups of parts, the combination with molding cavity. Clamped injection, mold in injection molding machine, molten plastic injection molding die cavity, and the cavity cooling stereotypes, then separated from mould, via ejection system will leave mould products out of the cavity roof, the mould closed again for the next injection, the injection molding process is a cycle.
4, mold of the general classification: can be divided into plastic mold and plastic mold:
Plastic injection mold are: (1) the seesaw die, forging die, stamping mold, die-casting mould, etc.
A. casting mould, cast iron platform - tap
B. forging die, car body
C. stamping mold, computer panels
D. die mold, super alloy, the cylinder body
(2) plastic moulds according to different production process and production product is divided into:
A. injection molding mould, TV shell, keyboard button (the most common used)
B. blow mold - beverage bottle
C. compression molding mold, bakelite switches, scientific heat-trapping ceramic disc
D. transfer molding mould, IC products
E. extrusion die - tube of glue, plastic bags
F. thermoforming mould molding, transparent packaging shell
G. rotational molding mold, soft plastic doll toys
The classification of plastic runway
Usually said the runway, in general, refers to all kinds of schools at all levels and professional track and field stadium runway, has the branch of standard and non-standard runway, standard refers to the perimeter of 400 meters of runway, radius of 36.5 meters (in addition to 36 meters and 37.898 meters two kinds), non-standard runway is refers to the shape and size according to land on the outdoor playgrounds area, properly adjust the playground radius and circumference, common has a perimeter of 200 meters, 300 meters, etc.
And the structure of plastic runway according to its construction, materials can be divided into:
Type prefabricated plastic runway all plastic plastic runway hybrid plastic runway composite plastic runway and plastic runway EPDM plastic runway
Prefabricated plastic runway and all plastic plastic runway because of its incomparable excellent performance is the commonly used types of professional track and field stadium, but the price is high, is generally unable to bear the primary and secondary schools;
Mixed plastic runway and composite plastic runway performance between all plastic type and breathable type, the price is slightly lower than that of all plastic such as plastic runway, but also taller than ventilation type many, on basis of the demand is higher;
And the performance of plastic playground runway can fully meet the indicators GB / 14833-14833, and air permeable, short construction period, also relatively easy to maintenance renovation, the highest cost performance, is also a big of choice for primary and secondary schools; EPDM plastic runway is mainly used in primary school or kindergarten and other non-standard runway.
The main material of plastic runway:
A two-component polyurethane pulp - type is mainly used for all plastic plastic runway, plastic runway, hybrid composite plastic runway
One-component polyurethane glue - is mainly used for composite plastic runway, breathable type plastic runway, EDPM plastic runway
PU particles, EDPM particles, black waste tyre particles, etc
Hybrid track laying process description:
Plastic track laying construction technology is to use three steps of construction method for laying. First to join the right amount of rubber particles in the glue solution, paving thickness of glue is 8 millimeter, after curing, laid on top and the thickness of adhesive solution for 2 mm, with artificial evenly sprinkle red particles, the excess granule, finally spraying a layer of adhesive solution on it.
And the structure of plastic runway according to its construction, materials can be divided into:
Type prefabricated plastic runway all plastic plastic runway hybrid plastic runway composite plastic runway and plastic runway EPDM plastic runway
Prefabricated plastic runway and all plastic plastic runway because of its incomparable excellent performance is the commonly used types of professional track and field stadium, but the price is high, is generally unable to bear the primary and secondary schools;
Mixed plastic runway and composite plastic runway performance between all plastic type and breathable type, the price is slightly lower than that of all plastic such as plastic runway, but also taller than ventilation type many, on basis of the demand is higher;
And the performance of plastic playground runway can fully meet the indicators GB / 14833-14833, and air permeable, short construction period, also relatively easy to maintenance renovation, the highest cost performance, is also a big of choice for primary and secondary schools; EPDM plastic runway is mainly used in primary school or kindergarten and other non-standard runway.
The main material of plastic runway:
A two-component polyurethane pulp - type is mainly used for all plastic plastic runway, plastic runway, hybrid composite plastic runway
One-component polyurethane glue - is mainly used for composite plastic runway, breathable type plastic runway, EDPM plastic runway
PU particles, EDPM particles, black waste tyre particles, etc
Hybrid track laying process description:
Plastic track laying construction technology is to use three steps of construction method for laying. First to join the right amount of rubber particles in the glue solution, paving thickness of glue is 8 millimeter, after curing, laid on top and the thickness of adhesive solution for 2 mm, with artificial evenly sprinkle red particles, the excess granule, finally spraying a layer of adhesive solution on it.
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