ASA plasticThe reason for the shiny surface of the finished product

1. The temperature is high

Each crystalline plastic has a fixed melting point, and it will burn if the temperature exceeds the melting point.

2, there are impurities in the material

For example, it is a material of PA66+GF30. But the material contains those low molecular weight impurities. Your injection temperature is set within a reasonable range of 280-290, but the impurities inside cannot withstand the high temperature of 280-290. So Low-molecular things will be burnt. They will surface on the surface. So they look shiny.

3. In terms of mold, poor exhaust

Injection molding

It is a method of producing styling for industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression method and die-casting method. Injection molding machine (abbreviated as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make various shapes of plastic products from thermoplastics or thermosets. Injection molding is achieved through injection molding machines and molds.

Main types

1. Rubber injection molding: Rubber injection molding is a production method in which rubber is injected directly from the barrel into the model to vulcanize. The advantages of rubber injection molding are: although it is an intermittent operation, the molding cycle is short, the production efficiency is high, the blank preparation process is eliminated, the labor intensity is small, and the product quality is excellent.

2. Plastic injection molding: Plastic injection molding is a method of plastic products. The molten plastic is injected into the plastic product mold by pressure, and the desired plastic parts are obtained by cooling and forming. There are mechanical injection molding machines dedicated to injection molding. The most commonly used plastic is polystyrene.

The resulting shape is often the final product, and no other processing is required before installation or use as the final product. Many details, such as protrusions, ribs, and threads, can be formed in one step of injection molding.