Defect description: along with the direction of release, due to metal adhesion and mold process release slant through the small casting surface pull marks, serious become crack

Causes.
1. Small release slope
2. Casting ejection bias
3. Surface roughness of the cavity
4. Spraying not in place
5. Core compression wound

Methods of improvement.
1. Correct the mold to ensure the manufacturing slope
2. Modification of mold structure or assembly
3. Grinding and polishing moulds
4. Improving spray positions
5. Polish the indentation or replace the core

Ningbo Hongxin Precision Machinery Co., Ltd. is a professional manufacturer of die casting, prototype, injection molded parts and CNC parts, welcome to contact us to discuss project development.