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Sorun ve Çözüm

Yaygın plastik malzeme zorluklarına pratik yanıtlar

Makalelere Göz At →
11636 soru
Q
EVA film blocking is severe
A
EVA film blocking is caused by high VA tackiness and high-temperature winding; antiblocking agent and cooling are key
Extrusion & Post EVA film blocking antiblocking agent winding temperature erucamide
15 görüntüleme
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Q
EVA poor plasticization
A
Poor plasticization is caused by improper screw design; optimizing the screw and increasing temperature are key
Processing Machinery EVA poor plasticization screw compression ratio shear rate processing temperature
16 görüntüleme
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Q
EVA internal inclusions
A
Inclusions are caused by raw material and environmental pollution; filtration and environmental control are key
Production & Quality EVA inclusions raw material filtration environmental cleanliness recycled material sorting
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Q
EVA hardness is too low
A
Low hardness is caused by material softness and excessive plasticization; adding filler is key
Molding Process EVA low hardness rigid filler plasticizer crystallization control
16 görüntüleme
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Q
EVA flatness is insufficient
A
Insufficient flatness is caused by shrinkage differences and stress; uniform cooling and annealing are key
Molds & Tooling EVA flatness shrinkage difference uniform mold temperature annealing treatment
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Q
EVA internal unmelted particles
A
Unmelted particles are caused by insufficient plasticization; increasing temperature and reducing feeding are key
Processing Machinery EVA unmelted particles plasticizing capacity processing temperature screw mixing
16 görüntüleme
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Q
EVA toughness is insufficient with brittle fracture
A
Insufficient toughness is caused by low molecular weight and coarse crystallization; selecting high MW is key
Material Analysis EVA insufficient toughness molecular weight crosslinking control crystallization refinement
16 görüntüleme
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Q
EVA impact strength fluctuates greatly
A
Impact fluctuation is caused by unstable dispersed phase and crystallization; stable processing is key
Molding Process EVA impact fluctuation dispersed phase particle size nucleating agent processing stability
16 görüntüleme
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Q
EVA and HDPE blend delamination
A
EVA/HDPE delamination is driven by viscosity difference; viscosity matching and compatibilizer are key
Extrusion & Post EVA/HDPE delamination viscosity difference VA content compatibilizer
15 görüntüleme
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Q
EVA film heat-sealing window is narrow
A
Narrow EVA heat-sealing window is caused by high VA; moderate VA and precise temperature control are key
Processing Machinery EVA film heat-sealing window VA content temperature control accuracy heat-sealing speed
16 görüntüleme
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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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