Three Common Processing Problems In Plastic Injection Molding

Companies that produce plastic parts rely on a plastic injection molding service. The competition can be fierce to produce the desired components accurately and quickly. It is essential to provide a consistent level of quality. To achieve this goal, fabrication companies must take care to avoid four problems that can plague the process.

Common Problems

Whenever employing plastic injection molding, molders must carefully choose the right thermoplastic. They must also guard carefully against the occurrence of the three following problems:

  1. Insufficient Drying: The granules may not dry enough before the molding process. When this happens, excessive moisture may occur. In turn, this can produce silver streaking and/or hydrolytic degradation
  2. Overheating: When a polymer melt is overheated, it increases the potential risk of thermal degradation.
  3. Cooling Too Quickly: If the polymer cools down too fast, it may – on the positive side, reduce production cycle time but also, on the negative side, produce differential shrinking of parts. This can increase the potential of high residual stress and/or dimensions that fail to meet the desired specifications.

The company and it molders providing customer companies with their plastic injection molding service must continually pay attention to the basic characteristics and qualities inherent in the thermoplastic intended for the process. They must consider such factors as humidity and the qualities of the materials. Furthermore, someone engaged in the process must adhere carefully to the guidelines governing it to ensure errors in quality and design do not occur. The capabilities of the molding machines utilized including accuracy and repeatability.

Plastic Injection Molding Service

Plastic injection molding provides mass-produced components at an affordable cost for a variety of companies. A single mold produced through the popular plastic injection molding service can provide an infinite number of components. Tight controls over pre and post-production ensure molders can produce quality parts while avoiding the most common problems.

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