Frequent Problems and Solutions for PC/ABS

As an ABS Plastic Tube Core Supplier, let's analyze the problems and solutions that often occur with PC/ABS.

1. Silver wire problem

Silver wire defect is the most common problem of PC/ABS material. Silver wire, also known as silver grain, water flower, flower, etc., is a silvery-white silky stripe phenomenon appearing along the flow direction on the surface of the product.

The main reason is gas interference, which is mainly divided into three components:

Air: the glue and the air entrapped during the injection phase;

Moisture: the moisture contained in the material itself;

Pyrolysis gas: a gas produced by high-temperature hydrolysis/thermal decomposition.

Solution: First check if the material is dry enough. After confirming that the material is dry enough, adjust the injection molding process to improve the silver wire defect. At the same time, poor injection molding silver wire is also related to mold exhaust.

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2. Flow marks problem

Flow marks are produced when the material is injected. The reason is that the material has poor fluidity. The flow marks are different from the silver lines. It is not caused by moisture or material decomposition, and the appearance is different.

Solution: It can be avoided by increasing the temperature of the material to improve the fluidity. Appropriately improving the mold problem to increase the fluidity of the material in the mold and reduce the injection speed can also be solved.

3. Shrinkage and dent problems

The shrinkage cavity is caused by the insufficient filling of the material in the cavity.

Solution: Appropriately increase mold temperature and material temperature to improve material flow, prolong injection pressure retention time, increase injection pressure, increase injection speed to improve mold filling, increase gate size, and heat gate flow To reduce and eliminate shrinkage of the product;

The dent is caused by the improper temperature of the material and improper design of the product. When the temperature of the material is too low, not only shrinkage holes but also dent problems will occur. The temperature of the material is too high, and the mold temperature is too high, which will cause the melt to cool. The time is excessively contracted, resulting in indents.

Solution: Use appropriate processing problems to increase injection speed and measures.

Our company specializes in providing a variety of high-quality China ABS Plastic Tube Core. Our processing technology is in the leading position in the same industry in China. If you are interested in our products, please feel free to contact us.