Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

Recycled material quality fluctuation

A

This problem is a typical manifestation of recycled material quality 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...

Extrusion & Post degradation yellowingprocessing temperatureresidence timeheat stabilizerPVC dehydrochlorination

Q

Degradation yellowing

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

Q

Poor pigment dispersion

A

This problem is a typical manifestation of poor pigment dispersion 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...

Extrusion & Post pigment dispersioncolor masterbatch carrierscrew mixingcolor masterbatch ratiodispersibility

Q

Excessive moisture content in raw material

A

This problem is a typical manifestation of excessive moisture content in raw material 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 th...

Material Drying excessive moisture content in raw materialtemperaturematerial

Q

Heater band failure

A

This problem is a typical manifestation of heater band failure 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...

Extrusion & Post heater band failure

Q

Abnormal barrel temperature

A

This problem is a typical manifestation of abnormal barrel temperature 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 sy...

Extrusion & Post barrel temperatureheater bandthermocouplePID controlsolid state relay

Q

Screw wear

A

This problem is a typical manifestation of screw wear 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 is recom...

Extrusion & Post screw wearfiller abrasionbimetallic screwclearance inspectionplastication quality

Q

Die wear

A

This problem is a typical manifestation of die wear 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 is recomme...

Molds & Tooling die wearfiller abrasionnitriding treatmentcemented carbidedie life

Q

Screen clogging / frequent screen changes

A

The essence of frequent screen clogging is insufficient raw material cleanliness or improper screen mesh count selection. The solution approach is "clean source + reasonable screen selection + automatic screen change": strengthen incoming raw material inspection and use clean materials, select re...

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

Q

Uneven coextrusion layer thickness

A

This problem is a typical manifestation of uneven coextrusion layer thickness 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/si...

Extrusion & Post coextrusioninterlayer adhesiontie layerdie flow channelmaterial compatibility

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