昆山免费国产精品视频在线塑膠模具（jù）有（yǒu）限公司

The main points for attention in plastic injection molding and the process involved are:

1. Injection molding cycle, which includes injection molding time and product cooling time, the effective control of these time has a profound impact on the quality of the product.

Before injection molding, we should define the molding cycle of the product through the pattern of the sample and other methods.

Second, the temperature of injection mold, different plastic particles, their crystallization temperature, speed are different, and the appearance of products, deformation, size, rubber mold, etc. have different requirements;

This makes the temperature of the injection mold in the use of different plastics, product requirements and other circumstances, the mold temperature control is not the same.

3. Molten plastic injection pressure, plastic in the process of filling the mold cavity is facing great resistance, which makes the injection pressure directly determines the size of the product, weight, density, appearance and so on!

Any factor affecting it will become a waste product. It is necessary for the injection engineer to define the injection pressure control according to the comprehensive factors of the product.

Four, the speed of injection and the speed of injection have an important influence on the appearance quality of the product.

The injection speed usually needs to be adjusted by adjusting the injection time per unit time to the injection cylinder.

5. The barrel temperature and melt temperature, melt temperature can be measured at the nozzle or by air injection method, melt temperature plays a major role in the fluidity of the melt.

The plastic has no specific melting point. The so-called melting point is a temperature section in molten state.

The control of both temperatures also plays a vital role in the quality of products.