Lifter mechanisms are widely used in injection molds for internal undercut release. They convert vertical ejection force into lateral sliding movement, which is compact and cost-effective compared wit
2026/10/21 Chinese Injection Molding
Uneven cooling and temperature gradient are major sources of residual internal stress for injection molded plastic parts. Optimized cooling systems help synchronize solidification speed of melt, reduc
2026/10/21 Chinese Injection Molding
Weld lines appear where two melt flows converge. Lines on thread surfaces reduce torsion strength and cause leakage. Adjusting gate position is an economical modification to transfer weld lines out of
2026/10/21 Injection Molding
Rust forms easily on mold cavity, core, slide and lifter surfaces when molds are stored or idle. Moisture, plastic decomposition residue and corrosive workshop gas will leave pitting corrosion, scratc
2026/10/21 Plastic Molds
The synchronization performance of ejection system is critical in plastic mold assembly. Out-of-sync movement of ejector pins, ejector blocks and reset parts may cause product whitening and deformatio
2026/10/20 Chinese Injection Molding
Coil Protector Mold Rusting, Complete Anti-rust Methods for Plastic MoldsCoil protector products are mostly molded by rubber or soft PVC. The mold cavity features tiny structures with dense grooves an
2026/10/20 Plastic Molds
Tube parts are typical rotary plastic workpieces. Flash along parting surface and flange edge is a common defect during injection molding. Many operators simply attribute flash to insufficient clampin
2026/10/20 Injection Mold
Stress whitening is a typical molding defect of conical cap plugs. Under the action of ejection force, residual stress inside the product causes local whitening on the surface, which affects appearanc
2026/10/19 Plastic Molds