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What parameters should be paid attention to in the injection molding of plastic products

Release time:

2021-09-15

What parameters should be paid attention to in the injection molding of plastic products

Today, plastic products are widely used, and the production process of plastic products has not been improved. As we all know, the main production method of plastic products is injection molding. The following provides you with detailed information about injection molding.

1. During the molding process of plastic products, the molding cycle of the product includes injection time and product cooling time. Effective control of these times has a profound impact on product quality, and before plastic injection molding, we should clarify the product molding cycle through sample patterns and other methods.

2. The temperature of plastic product mold, different plastic particles, different crystallization temperature and speed, product appearance, deformation, size, plastic mold, etc. have different requirements, which makes the temperature of injection mold change different when used. Plastics, product requirements, etc., have different control methods.

3. The melting pressure of plastic product materials is large, and the plastic faces great resistance in the process of filling the mold cavity, which makes the injection pressure directly determine the size, weight, density, appearance, etc. If any of these factors are affected, the product becomes waste, which requires the injection molding engineer to properly define injection pressure control based on product mix factors.

4. The molding speed of plastic products is fast, and the injection speed has an important impact on the appearance quality of the product. Usually, the injection speed is achieved by adjusting the amount of oil supplied to the injection cylinder per unit time.

5. The temperature of the barrel and the temperature of the melt. The temperature of the melt can be measured at the nozzle or by the air jet method. The melt temperature plays a major role in the flow properties of the melt. Injection molding plastics do not have a specific melting point, it is the temperature range of the molten state. The two temperatures are controlled at Product quality also plays a vital role.