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What is the reason why there is material bloom in ABS injection molding?
发布日期: 2019.08.15 Back to list source: Release date: 2019.08.15

Some users do not know much about the injection molding processing industry and do not know much about the quality of the processed products. Today Shenzhen Huanke Precision Manufacturing Co., Ltd. will analyze the reasons for the lack of material when injection processing ABS injection.

注塑加工ABS注塑时有料花的原因是什么?

1. Because the water absorption of ABS raw materials is relatively large and it is sensitive to humidity, if the drying process is not performed before the machine is used, the injection-molded products are likely to be caused by water vapor.

2. The quality of the material is too poor, if the material is not pure enough to contain other impurities, it is difficult to dry no matter how it is baked. Generally, the price of abs below 6000 should be paid attention to.

3, the failure of the dryer or improper temperature adjustment causes the raw materials to dry. As a rule of thumb, many ovens have uneven heat dissipation, and some materials have not been dried for how long.

dry. The temperature of the thermal cycle dryer should be appropriate. The temperature is low, and the moisture is not easy to dry. The temperature is high, and it is easy to agglomerate.

4. There are faults in the components of the barrel of the injection molding machine. No matter how you bake and what materials you choose, there will always be blooms.

5, mold problems lead to flowering, common exhaust problems, improper gate design, etc., or the mold has been used for too long and damage has occurred.

6, the injection temperature and time should be appropriate, too high temperature or stay in the barrel for too long will cause the abs to decompose and generate gas, resulting in the appearance of flowers.

7. Also, the back pressure and firing rate should be appropriate when injection molding. When the back pressure is too low or insufficient, the incomplete extrusion of the air in the melt will also cause the material to bloom, and the back pressure should be appropriately increased.

Huanke Precision has accumulated mold development, design, and injection molding experience in dozens of industries such as electronics, intelligence, new energy, etc., is good at product structure optimization, works closely with many world design agencies, and provides many customers with higher cost performance The design scheme has more than 10 sets of CNC processing, EDM, Nissei, other tonnage molds, and injection molding processing equipment to provide you with more comprehensive mold injection services.

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