Industrial

Requirements for the selection of materials for injection molded parts The selection of mold materials is a crucial issue in mold design and manufacturing, directly affecting a range of aspects such as mold manufacturing process, mold lifespan, molding quality of plastic parts, and mold processing costs. For this reason, scholars both domestically and internationally have […]

During the molding process of plastic products, any molding factor that reduces the molecular orientation of the polymer in the product can reduce orientation stress; any process condition that ensures uniform cooling of the polymer in the product can reduce cooling internal stress; and any processing method that facilitates demolding of the plastic product can

Improper control of molding conditions If the injection pressure is too low, the injection and holding times are too short, the injection rate is too slow, the material and mold temperatures are too high, the part is not cooled enough, the temperature during demolding is too high, the insert temperature is too low, or there

Improper Control Of Molding Conditions If the injection pressure is too low, the injection and holding times are too short, the injection rate is too slow, the material and mold temperatures are too high, the part is not cooled enough, the temperature during demolding is too high, the insert temperature is too low, or there

Mold failure Since the surface of the plastic part is a reproduction of the mold cavity surface, if there are surface defects such as scars, corrosion, micropores on the surface of the mold, it will be reflected on the surface of the plastic part to cause gloss poor. If there is oily, moisture on the

When designing each injection molding product, we must first determine its mold opening direction and parting line to ensure that the core pulling slider mechanism is minimized and the influence of the parting line on the appearance is eliminated. 1. After the mold opening direction is determined, the product’s reinforcement ribs, buckles, protrusions and other

Plastic varieties: During the molding process of thermoplastics, there are volume changes caused by crystallization, strong internal stress, large residual stress frozen in the plastic parts, strong molecular orientation and other factors. Therefore, compared with thermosetting plastics, their shrinkage rate is larger, the shrinkage rate range is wider, and the directionality is obvious. In addition,