Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Insufficient surface gloss

A

This problem is a typical manifestation of insufficient surface gloss in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing sys...

Extrusion & Post coating glossmatting agent dispersioncuring degreesubstrate roughnessleveling time

Q

Profile dimensional fluctuation

A

This problem is a typical manifestation of profile dimensional fluctuation in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizin...

Material Drying profile dimensional fluctuationuniform feedingsizing mold wearcooling water temperaturemelt temperature

Q

Longitudinal corrugation of pipes

A

This problem is a typical manifestation of longitudinal corrugation of pipes in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/siz...

Extrusion & Post vacuum sizingpipe ovalityvacuum degreesizing sleeve designcooling water temperature

Q

Excessive internal stress

A

This problem is a typical manifestation of excessive internal stress in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing syst...

Extrusion & Post internal stresscooling ratedraw ratioannealing treatmentmolecular orientation

Q

Static electricity problem

A

This problem is a typical manifestation of static electricity problem in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing sys...

Extrusion & Post haul-off slippinghaul-off roller wearclamping pressuretransmission systemdimensional fluctuation

Q

Improper winding tension

A

This problem is a typical manifestation of improper winding tension in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing syste...

Extrusion & Post haul-off slippinghaul-off roller wearclamping pressuretransmission systemdimensional fluctuation

Q

Haul-off slipping

A

This problem is a typical manifestation of haul-off slipping in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing system. It i...

Extrusion & Post haul-off slippinghaul-off roller wearclamping pressuretransmission systemdimensional fluctuation

Q

Melt temperature too low

A

This problem is a typical manifestation of melt temperature too low in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing syste...

Extrusion & Post melt temperature too lowtemperature

Q

Melt temperature too high

A

This problem is a typical manifestation of melt temperature too high in extrusion molding. The core of the solution lies in eliminating the root cause of the defect through systematic optimization of process parameters (temperature, speed, pressure) and precision correction of the die/sizing syst...

Extrusion & Post screen cloggingraw material cleanlinessfiltration mesh countgel particlesautomatic screen changer

Q

PVC degradation (HCl release)

A

The essence of degradation yellowing is chain scission and chemical changes of polymer molecular chains under high temperature and high shear conditions. The core of the solution is "three controls": control processing temperature within the material recommended range, control residence time to a...

Processing Machinery degradation yellowingprocessing temperatureresidence timeheat stabilizerPVC dehydrochlorination

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