What are the key control points for plastic parts and plastic molds?

 

After the plastic mold is manufactured, it needs to be tested and inspected. Only when it is confirmed to be completely problem-free can it be used for mass production. Whether the mold is being tested or in formal production, mold control is essential to ensure normal production and mold quality. So, what are the key control points for molds?

 

The quality of plastic parts requires key control, mainly divided into dimensional tolerances and appearance quality control. The dimensions of the parts must not exceed the specified tolerances; if they do, the excess parts need to be modified appropriately in a timely manner. Appearance quality is achieved through process technology to prevent obvious defects such as burrs, cracks, and peeling. When process technology cannot solve the problem, the mold can be repaired to improve the surface quality of the parts, or the mold surface can be treated to increase its hardness.

 

Production efficiency is largely influenced by the press speed, which significantly affects the forming and quality of the parts. In the drawing process, lower press speeds result in better formability. Increasing speed improves efficiency, but it also increases the probability of cracking. Therefore, operators must carefully control the press speed.

 

Cost control is crucial for ensuring part quality and appearance, avoiding excessive defects that lead to rework. The rational use of technology and processes helps prevent excessive defects. While saving costs, it is essential to ensure that the dimensional accuracy and quality of the parts meet standards.