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