Optimize prescription of plastics and prefer use resins with low shrinkage; reduce dosage of recycled materials; dry the material as much as possible; add proper amount of lubrication additive to improve fluidity of melt and to reinforce the effect of shrinkage compensation; select proper reinforcing filling material to reduce shrinkage and to improve the material’s capacity for resisting shrinkage tress so that the surface can be avoided.

Optimize prescription of plastics