Select Plastic Mold Precautions

- Oct 22, 2018-

What should I pay attention to when choosing a plastic mold? There are two main types of plastic mold injection production. One is a conventional plastic mold. This mold has a life expectancy of 10-20 million molds under normal conditions. Mainly used for small batch injection molding, usually refers to 100-2000 per processing. There is also a mold that is a mold for mass production. This kind of mold has a long service life, and basically does not come down to the injection molding machine, and the production is kept all day long, and the life of the mold is high. This mold material is more than double the cost of processing technology, materials and processing after heat treatment, with a capacity of more than one million times.

The good wear resistance of the plastic surface gloss and accuracy is directly related to the wear resistance of the injection mold cavity surface, especially some plastics add glass fiber, inorganic fillers and pigments, they and the plastic melt flow, at high speed flow Cavity. The surface of the cavity is rubbed. If the material is not worn, it will wear quickly and the quality of the plastic will be lost.

Mold materials must have good dimensional stability for injection molding. It is best to choose a suitable tool steel for heat treatment.

The mold is sprayed with a rust inhibitor after the end of production. Reduce the possibility of rusting of the cavity and core. Therefore, the mold material must be corrosion resistant.

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