문제 및 해결책

일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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Extremely low strength at the weld line

PEEK weld lines are the main weak link in the product structure

Molding Process weld linemolecular diffusionmold temperaturesequential valveentanglement

PEEK pellets rapidly regain moisture after drying

PEEK's sensitivity to moisture requires moisture protection throughout the process

Material Drying moisture regainhygroscopicitydrying hoppersealed storageworkshop dehumidification

Screw and barrel high-temperature corrosion

Processing Machinery corrosionscrewbarrelHastelloyInconelcoating

Ordinary '2079851475616104452 machines cannot meet PEEK processing requirements

PEEK processing must use dedicated high-temperature '2079851475616104452 equipment

Injection Molding 2079851475616104452 machineheating systemceramic heatingscrew L/Dhigh-temperature '2079851475616104452

Product shrinkage rate high and fluctuating

PEEK shrinkage rate is highly sensitive to mold temperature and cooling rate

Molds & Tooling shrinkage ratecrystallinity differencemold temperatureholding pressure curvecooling time

Insufficient melt flowability, mold filling difficulty

Material Drying flowabilityprocessing temperaturemelt viscositymolecular weightPEEK grade

Product incomplete crystallization, poor performance

PEEK crystallinity needs to reach more than 30% to fully reflect its high performance

Molds & Tooling crystallinitymold temperatureamorphouspost-crystallizationoil temperature control180°C

Product bubbles/internal pores

Material Drying bubblesdryingmoisture contentdew pointholding pressure

Product black spots/burnt spots

Processing Machinery black spotsdegradationtemperature controlPIDresidence timecarbonization

PAN processing comprehensive problem - solvent recovery

Processing Machinery PANsolvent recoveryprocessing qualityprocess optimizationequipment management

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