Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Dimension Out of Tolerance

A

This problem is a typical manifestation of dimension out of tolerance in '2079851475616104452; the core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, pressure, speed) and rationality checks of mold design. It i...

Molds & Tooling shrinkage ratewall thickness designcooling water channelholding pressuredimensional accuracy

Q

Warpage Deformation

A

Warpage is macroscopic bending caused by inconsistent shrinkage of various parts of the part. The solution ideas are: achieve uniform cooling of all parts during the cooling stage (cooling water channel optimization), adopt symmetrical layout and isotropic design in structural design (wall thickn...

Molds & Tooling warpage deformationcooling uniformityresidual stressgate symmetryannealing

Q

Drag Mark / Scratch

A

This problem is a typical manifestation of drag mark/scratch in '2079851475616104452; the core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, pressure, speed) and rationality checks of mold design. It is recomme...

Molds & Tooling demolding draft anglemold polishingholding pressurecooling timerelease agent

Q

Poor Surface Gloss

A

This problem is a typical manifestation of poor surface gloss in '2079851475616104452; the core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, pressure, speed) and rationality checks of mold design. It is recomm...

Molds & Tooling surface glossmold polishingmold temperatureholding pressurerelease agent

Q

Cold Slug Mark

A

This problem is a typical manifestation of cold slug marks in '2079851475616104452; the core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, pressure, speed) and rationality checks of mold design. It is recommend...

Molds & Tooling cold slug marknozzle temperaturecold slug wellmold temperaturepoor gloss

Q

Sink Mark / Depression

A

The essence of sink marks is that local volume shrinkage cannot be compensated by feeding. The core countermeasure is to establish and maintain an effective feeding channel — set the gate near the thick-wall area, extend the holding time until after the gate freezes, and at the same time reduce t...

Molds & Tooling sink markholding pressure feedingcooling timewall thickness designgate position

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