POM are easily decomposed by heat, and there is a troublesome problem. When the raw materials are decomposed by heat, impurities will be generated in the dead corner of the mold. For a long time, the accumulation of more and more, the dead corner will be filled with impurities, resulting in lack of injection molding parts, gear parts missing edges and corners, you need to use a needle tip or glue cleaner to clean up impurities before continuing production.
However, sometimes there is a phenomenon of missing corners and teeth after only one or two hours of production, and it is impossible to produce at all. At this time, people often doubt whether the temperature is too high, or there is a problem with the supplier’s raw materials. But no matter how lower the temperature or replace the raw materials, the production still cannot be carried out normally.
After repeated research, it was found that the problem was not related to the temperature and the supplier’s business, but to the problem of secondary recycled materials.
Due to the problem of the beating machine, the content of crushed powder in the secondary recycled material is too much, which causes the POM material to be greatly decomposed by heat, which greatly accelerates the generation of decomposed impurities, resulting in the lack of injection parts for one or two hours There are few corners.
Therefore, before the production, sieve the crushed powder, so that there will be no missing edges and corners after only one or two hours of production. Normally, it is normal to have no edges and corners for more than ten days in production.
In addition, it is also worth noting that due to too much crushed powder in the secondary recycled material, the mechanical strength of the plastic parts is also greatly reduced due to the influence of too many decomposition impurities, and the brittleness is increased.
To learn more about our manufacturing capabilities and discover what makes us different, please visit our website. If you’re ready to jump into your next project with us. No matter your need, contact us now and we not only meet your requirements, but we actively look for ways to improve on your product and thus save you money and time in today’s competitive marketplace.