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Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

1506 preguntas
Q
Large weight fluctuation of homopolymer polypropylene injection products
Q
Roundness out of tolerance of homopolymer polypropylene injection products
A
Out-of-tolerance roundness is caused by non-uniform shrinkage; it needs to be improved from cooling symmetry, gate design, and wall thickness uniformity.
Injection Molding roundness out of toleranceanisotropic shrinkagecooling uniformitygate positionwall thickness uniformity
Q
Processing difficulty caused by melt flow rate mismatch of homopolymer polypropylene raw material
A
MFR mismatch needs to be solved by selecting appropriate grades and adjusting process parameters; the key is to establish an incoming material MFR inspection system.
Injection Molding melt flow rategrade selectionincoming material inspectionprocess adjustmentraw material mixing
Q
Environmental stress cracking of homopolymer polypropylene injection products
Q
Stress whitening near the gate of homopolymer polypropylene injection products
Q
Dimensions of homopolymer polypropylene injection products continue to change after demolding
Q
Crazing/microcracks on the surface of homopolymer polypropylene injection products
Q
Uneven color/color difference of homopolymer polypropylene injection products
Q
Underfill/short shot of homopolymer polypropylene injection products
Q
Flow marks on the surface of homopolymer polypropylene injection products
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