Common quality problems of injection parts
A. Appearance:
Product surface often appears: shrinkage, drape, mixed color, mixed point, drag pattern, mold pattern, water pattern (material pattern), oil stain, crack, water pattern, air pattern, flow pattern, water pattern, deformation, color difference, uneven color, scratch, top white, top height, top piercing, blind hole, broken column, bubble, fogging, brittle, air pattern, uneven erosion pattern, unclear word mark, lack of glue, nozzle damage, residual glue deviation Long wait
B. In terms of structure:
1. Screw column position: lack of glue, flapping edge, […]