Comprehensive Analysis of the Causes of Injection Mold Sticking Faults and Targeted Solutions
Injection mold sticking (mold sticking to the mold) is a high-frequency quality defect in plastic molding production. Specifically, after the mold opens, the plastic product firmly adheres to the surface of the front mold or rear mold cavity/core and cannot be demolded and removed normally, easily causing product scratches, deformation and scrapping, while also delaying the production rhythm, reducing injection molding production efficiency, and seriously affecting mold service life and mass-production stability. Combining first-line injection molding production practical experience, this article comprehensively sorts out the core causes of mold sticking and related product shrinkage faults, analyzes the problems from multiple dimensions including injection molding process parameters, mold structure design, mold surface condition and gating system, and provides standardized, implementable rectification countermeasures, providing technical reference for injection molding manufacturers to quickly solve sticking problems and optimize molding processes.