Tips for the appearance of injection molded part inspecting The quality evaluation of you plastic products. Posted on : January 11, 2022 By  GREFEE Injection molding is the most common manufacturing technology in industrial fields. Injected products not only have high requirements of dimensions, but also even have higher requirements on its appearance. Common defects of injection molding products such as: shrinkage on product surface, welding marks, flash, eject marks, etc. Those are important factors affecting the use of products. GREFEE…

Insert mold in injection mold service Posted on : Dec 18, 2021  By  GREFEE Insert mold generally is a kind of mould that make nuts, metal parts or hard plastic parts fixed inside cavities for injection molding. Insert nuts injection molding: nuts material can be stainless steel, copper, bronze and steel, generally copper nuts are commonly used. Copper is easy to knurl, which helps nuts and plastics splice better. The tolerance of nut inner bores should be controlled within 0.02mm, otherwise…