plastic injection molding, eight ways to bend injection molded parts!
The injection mold manufacturing industry plays a vital role in modern industry, and its products are widely used in all walks of life. However, the bending of injection molded parts is one of the common challenges in the manufacturing process. The root cause of the bending of the injection mold can usually be traced back to the defect characteristics of the injection mold itself, making its shape similar to the mold cavity but a distorted version of the mold cavity shape.
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The bending of injection molded parts may be caused by many factors.
1. Too much internal stress inside the injection molded part may lead to bending.
2. The slow filling speed of the mold is also a common reason.
3. Insufficient plastic in the mold cavity, inconsistent plastic temperature, high temperature when the injection molded parts are extruded, insufficient cooling or moving, inconsistent temperature of the fixed mold, and unreasonable structural design of injection molded parts may lead to the bending phenomenon of injection molding parts.
For the bending of injection molded parts, a variety of remedial measures can be taken.
1. Reduce the pressure of injection molding, reduce the forward time of the screw, and increase the cycle time, especially the cooling time. After being pushed out of the mold, immediately immerse the injection part in warm water to cool it slowly.
2. Increase the speed of injection molding and the temperature of plastic, use cooling equipment to cool the curved injection molding parts, appropriately increase the cooling time or improve the cooling conditions, and ensure that the temperature of the moving and fixed mold is consistent. Finally, improve the structure of bending injection molding parts according to the actual situation and reduce the possibility of bending as much as possible.
In the production process of injection molding parts, injection mold manufacturers should pay close attention to the occurrence of bending problems and take effective measures to solve them in time to ensure the production of high-quality injection molded parts. By continuously optimizing the production process and improving the technical level of equipment, it can effectively reduce the occurrence of bending problems of injection molded parts, improve production efficiency and product quality, meet market demand, and promote the development of the injection mold manufacturing industry.