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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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11636 soru
Q
Insufficient roundness of PU
A
Insufficient roundness is caused by uneven cooling; annular cooling is key
Molds & Tooling PU insufficient roundness uniform cooling gate symmetry demolding force
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Q
Internal voids of PU
A
Internal voids are caused by insufficient holding and gas entrapment; high-pressure holding and venting are key
Material Drying PU internal voids holding pressure mold venting raw '2079851475616104451
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Q
Heavy smoke in PU processing
A
Heavy smoke is caused by volatiles evaporation; temperature reduction and exhaust are key
Material Analysis PU processing smoke volatiles exhaust system temperature reduction
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Q
Periodic surface corrugation of PU
A
Corrugation is caused by unstable injection; equipment overhaul and PID control are key
Injection Molding PU surface corrugation injection stability equipment overhaul PID control
15 görüntüleme
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Q
Poor PU plasticization
A
Poor plasticization is caused by improper screw design; optimizing screw and raising temperature are key
Processing Machinery PU poor plasticization screw compression ratio shear rate processing temperature
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Q
Internal inclusions of PU
A
Inclusions are caused by raw material and environmental pollution; filtration and environmental control are key
Production & Quality PU inclusions raw material filtration environmental cleanliness recycled material sorting
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Q
PU hardness too low
A
Low hardness is caused by material softness and excessive plasticization; adding filler is key
Molding Process PU low hardness rigid filler plasticizer crystallization control
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Q
Non-uniform internal density of PU
A
Non-uniform density is caused by uneven holding pressure; optimizing gate design is key
Molds & Tooling PU non-uniform density holding pressure transmission gate design crystallization difference
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Q
Insufficient toughness of PU, brittle fracture
A
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
Material Analysis PU insufficient toughness molecular weight crosslinking control crystallization refinement
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Q
Insufficient flatness of PU
A
Insufficient flatness is caused by shrinkage difference and stress; uniform cooling and annealing are key
Molds & Tooling PU flatness shrinkage difference uniform mold temperature annealing treatment
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Tüm Konular 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382
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