Plastic Y-type strainer Molding

Avoid weld lines and short shots: The filter is prone to having weld lines and short shots. We recommend multi-gate or hot-runner systems and place the gates strategically for even filling; at the same time, bump up mold temperature and injection speed to improve melt flow and reduce cold slug marks.

Cooling design: Uneven cooling can easily lead to warpage. The main body is cylindrical, but the two end ports aren't symmetrical, so cooling rates vary a lot, which tends to cause warping. We build conformal cooling channels into the mold and control temperatures separately for thick and thin sections; at the same time, use stripper plates to eject to avoid deformation.

Process control: The external threads on both ends demand tight dimensional accuracy, and it's easy to run into deformation during ejection or incomplete thread profiles: the wall thickness around the threads isn't uniform, cooling shrinkage varies, often causing distortion or out-of-tolerance dimensions. The solution is to use high-precision threaded cores with side-action slides for damage-free ejection; also, increase hold pressure and extend hold time during the injection to compensate for shrinkage, making sure the thread profiles are fully formed and dimensionally stable.