The application range of plastic products is expanding, such as: household appliances, instrumentation, construction equipment, automotive industry, daily hardware, etc., the proportion of plastic products is rapidly increasing. These plastic products are created by plastic injection molds. What is the principle of plastic molds?
Plastic injection molding process
Molds are tools for producing plastic products. It consists of several parts of the composition which have a moulding cavity. After injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the cavity, then the cavity is cooled, then placed, and then the upper and lower molds are separated, the product is ejected from the mold through the injection system, and finally the mold is closed. The next injection molding process takes place throughout the injection molding process.
Mold meets process performance requirements
Mold manufacturing generally involves forging, cutting, and heat treatment. In order to ensure the quality of the mold manufacturing and reduce the production cost, the material should have good ductility, machinability, hardenability, hardenability and grindability. It should also have a small tendency to oxidize, decarburize sensitive and quench deformation cracking.
The mold meets economic requirements
In mold selection, we must consider economic principles as much as possible to reduce manufacturing costs. Therefore, under the premise of using performance, first choose a lower price, you can use carbon steel without alloy steel, you can use domestic materials without imported materials.