Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PEEK Continuous Use Temperature and RTI

A

260℃ is the PEEK ceiling, not the working point; design with sub-item RTI plus margin; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Analysis continuous use temperatureRTIthermal agingselection margin

Q

Filling Speed and Shear Darkening of PEEK

A

1-3 second filling is the rhythm benchmark of PEEK — check one end each for short shot and darkening; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis filling time shear darkening short shot thin wall

Q

Balance Between Vent Depth and Flash of PEEK

A

PEEK venting is 0.02mm-level fine work — depth precision is more important than deepening; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis vent groove flash trapped air burnt

Q

Performance Decay of PEEK Under Long-Term Thermal Aging

A

PEEK's long-term reliability depends on temperature margin and heat history management; every overheating in the processing stage is overdrawing the service life; accelerated aging data is the basis for design life.

Material Analysis PEEK；thermal aging；life；decay；temperature margin；reliability

Q

Inspection Dispute of PEEK Aerospace Parts

A

For PEEK crystallinity determination, the test standard must first be unified before discussing qualification; multi-point sampling reflects the true gradient; pre-agreement in the technical agreement can avoid delivery disputes.

Material Analysis PEEK；aerospace；crystallinity；DSC；inspection standard；dispute

Q

Pressure Resistance Failure of PEEK Oil and Gas Pipe Fittings

A

The quality defense line of PEEK pressure-bearing parts lies in non-destructive testing; qualified appearance does not mean qualified interior; pores and weld lines are the two major roots of pressure-bearing failure.; After confirming effectiveness, solidify the parameters and practices into the...

Material Analysis PEEK；pipe fitting；pressure resistance；pore；weld line；non-destructive testing

Q

Degradation from Blending Recycled Material into PEEK

A

The core of PEEK recycled material management is controlling the number of heat histories; melt index testing is a practical means to quickly evaluate degradation; high-value products should not bear performance risks to save material.

Material Analysis PEEK；recycled material；degradation；heat history；melt index；brittleness

Q

Uneven Conductivity of Carbon Fiber Reinforced PEEK

A

The conductivity of carbon fiber PEEK is directly related to fiber morphology management; orientation anisotropy is an inherent characteristic, and test evaluation must be carried out by zones; gentle shear protects fiber length.

Material Analysis PEEK；carbon fiber；conductivity；orientation；dispersion；shielding

Q

Low-Temperature Brittle Cracking of PE Products

A

PE low-temperature brittle cracking = double insurance of 'grade + structure': HDPE in particular requires vigilance against low-temperature notch sensitivity; passing at room temperature does not mean passing at low temperature — verification must simulate the real use temperature.

Material Analysis PE；HDPE；low temperature；brittle cracking；notch sensitivity；grade

Q

PE Film Poor Heat Sealing

A

For PE heat sealing, first determine the temperature window according to the grade melting point, then check the film surface condition and heat seal layer thickness; slip agent is a double-edged sword, requiring both opening and sealing performance, and the dosage must be weighed.

Material Analysis PE;film;heat sealing;seal strength;slip agent;melting point

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