Problem & Solution

Practical answers to common plastic material challenges

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Sintered molded products cracking

Molding Process sinteringcrackingheating ratepre-pressingthermal stress

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

PAN pre-oxidation skin-core structure oxygen content gradient

Molding Process oxygen content gradientpre-oxidationdiffusiontemperature curve

PAN pre-oxidation process exotherm out of control

Pre-oxidation exotherm control is the process safety key in carbon fiber manufacturing

Molding Process pre-oxidationexothermstep heatingcyclization reactiontow density

PAI dimensional change after molding

PAI dimensional stability affects precision assembly

Molding Process dimensional changepost-curingthermal expansiondimensional stability

Product deformation during post-curing

Deformation during post-curing needs to be controlled by fixtures and slow heating

Molding Process post-curing deformationsizing fixtureheating rate

PAI insufficient post-curing, insufficient performance

Post-curing is the decisive step for achieving PAI performance

Molding Process post-curingimidization260°Cheating program

PAEK compression molding defects

PAEK compression molding requires sufficient pressure and holding time

Molding Process compression moldingporesdensitypressureholding pressure

Product creep performance substandard

The creep performance of LGFPP depends on effective load transfer of the fiber skeleton

Molding Process creepconstant loadstress relaxationhigh molecular weight PPfiber orientation

Product impact strength has directionality

Molding Process impact strengthdirectionalityfiber orientationcrack propagationbridging

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