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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

11636 perguntas
Q
Nozzle blockage in general-purpose polyethylene '2079851475616104452
Q
Flatness out of tolerance of general-purpose polyethylene injection molded products
Q
Dimensions of general-purpose polyethylene injection molded products too large, exceeding the upper limit
Q
Unbalanced ejection of general-purpose polyethylene injection mold causing product deformation
Q
Excessive moisture content of general-purpose polyethylene raw material causing product defects
Q
Large weight fluctuation of general-purpose polyethylene injection molded products
A
Q
Insufficient impact strength of general-purpose polyethylene injection molded products
Q
Roundness out of tolerance of general-purpose polyethylene injection molded products
A
Roundness out of tolerance is caused by non-uniform shrinkage, and needs to be improved from three aspects: cooling symmetry, gate design, and wall thickness uniformity.
Injection Molding roundness out of tolerance anisotropic shrinkage uniform cooling gate position uniform wall thickness
Q
Mismatch of the melt flow rate of general-purpose polyethylene raw material causing processing difficulties
A
MFR mismatch needs to be solved by selecting suitable grades and adjusting process parameters, and the key is to establish an incoming material MFR inspection system.
Injection Molding melt flow rate grade selection incoming material inspection process adjustment raw material mixing
Q
Environmental stress cracking appears in general-purpose polyethylene injection molded products
ChemAI