Sink marks on the side walls of molded parts are a relatively common issue in the plastic injection molding process. These sink marks are usually caused by local shrinkage of the plastic after the mold gate seals or due to insufficient material.

In the process of injection molding mold manufacturing, factors such as the choice of steel material, mold design process, and factory management mode have a crucial impact on processing costs. To meet different application needs, such as high hardness, high wear resistance, or high toughness of mold steel, we must carefully plan during the production process to effectively control the processing cost of injection molding molds.

In the process of injection molding, if we want the molded parts to exhibit vibrant colors, the use of color masterbatch becomes indispensable. By mixing the required color masterbatch particles with plastic raw material particles and adding them into the injection molding machine for melting and molding, we can obtain colorful plastic products.