What causes the phenomenon of cracking during the processing of injection plastic parts?

2025,08,19

We often see some processed parts in our daily lives, and the processing of injection molding parts is a more frequent injection molding method. Many products are made in this way. There will be some defects in the processing of Injection molding Plastic Parts. Let's take a look.

1, injection molding processing working pressure is too large, the rate is too fast, the more filling, injection, pressure holding time is too long, all lead to excessive thermal stress and cracking;

2. Adjust the mold speed and working pressure to avoid the cracking of the mold caused by the rapid strong drawing of the parts;

3, moderately adjust the temperature of the abrasive (title: the mother of industrial production), so that the parts are easy to mold, moderately reduce the material temperature to avoid dissolution;

4, to prevent the cracking due to the dissolution of the plastic (structure: resin material, adhesive, thickener, dye), resulting in the reduction of mechanical equipment compressive strength;

5. Appropriate application of the film release agent, pay attention to often remove the aerosol and other chemicals adhering to the die surface;

6, the internal stress of the workpiece can be removed by quenching and tempering treatment immediately after forming to reduce the conversion of the fracture.

ZIBO HUIWEN Plastics offers a full range of plastic molding capabilities to efficiently mass-produce parts specializing in injection molding and have served customers in variety of industries such as medical, automotive, packaging, construction, home appliances , and agriculture. The company has two factories which occupy a total area of more than 18,000 square meters, and a total of 102 sets of injection molding machines .

COmpetitive products:

3.500+ Material Choices Custom Injection Molding

Author:

Mr. Kama Liu

E-mail:

sale@hwplasticparts.com

Phone/WhatsApp:

+86 15069372818