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Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

11636 perguntas
Q
EEA injection sink marks
A
Sink marks are caused by insufficient holding and wall thickness difference; high-pressure holding and multiple gates are the core countermeasures
Injection Molding EEA injectionsink marksholding pressurewall thickness differencegate design
Q
EEA performance degradation with repeated processing
A
Performance degradation from multiple processing is caused by thermo-mechanical degradation; limiting recycled material and supplementing antioxidant are the key
Production & Quality EEA recyclingperformance degradationantioxidant supplementationthermal degradationshear degradation
Q
Unbalanced multi-cavity filling in EEA injection
A
Unbalanced multi-cavity filling is caused by runner design; balanced runner and mold flow analysis are the key
Injection Molding EEA injectionmulti-cavity balancerunner designgate sizemold flow analysis
Q
EEA injection molded product ejector whitening
Q
Unstable EEA extrusion feeding
A
Unstable feeding is caused by granule characteristics; gravimetric feeding and anti-bridging are the core
Extrusion & Post EEA feedingbridginggravimetric feedergranulationfeeding screw
Q
Poor printing adhesion of EEA film
A
Poor printing adhesion is caused by insufficient surface polarity; corona treatment and special ink are the key
Extrusion & Post EEA filmprinting adhesioncorona treatmentspecial inksurface tension
Q
EEA extruded film thick at edges and thin in the middle
A
U-shaped thickness is caused by die runner and swell difference; coat-hanger die and gap fine adjustment are the key
Molds & Tooling EEA filmthickness distributioncoat-hanger diegap fine adjustmentedge effect
Q
Uneven color of EEA mixed with color masterbatch
A
Color masterbatch carrier matching and full dispersion are the key to color uniformity
Injection Molding EEA coloringcolor masterbatchcarrier compatibilitypigment dispersioncolor streaks
Q
Rough EEA extrusion surface
A
Rough surface is caused by low-temperature extrusion and die defects; increasing temperature and polishing the die are the core countermeasures
Extrusion & Post EEA extrusionrough surfacedie polishingextrusion temperaturemelt elasticity
Q
Severe EEA extruder screw wear
A
Screw wear is caused by filler friction and adhesion; wear-resistant screw and temperature control are the key
Extrusion & Post EEA extrusionscrew wearnitrided screwfiller frictionbimetallic screw
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