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일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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Q

Insufficient Runner and Gate Dimensions for PEEK

A

Runner >3mm and gate >1mm for PEEK are the official lower limits — when pressure loss is large, measure the dimensions first; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling runner size gate size pressure loss shear

Q

Missing Shutdown Purging Procedure for PEEK

A

Shutting down with material in the barrel is a big taboo for PEEK — purging with HDPE is only complete when the droplets are clean; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery shutdown purging HDPE carbonization black speck

Q

Temperature Control and Maintenance of PEEK Hot Runner

A

PEEK hot runner temperature control at 375-390℃ is delicate work, and drying and dehumidifying before startup cannot be omitted; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling hot runner temperature control gate blockage carbonization

Q

Actual Measurement Calibration of PEEK Melt Temperature

A

PEEK process transfer is based on the actually measured melt temperature, and set values are for reference only; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting refe...

Processing Machinery actual melt temperature measurement air-shot temperature calibration machine difference

Q

Jump Heating Between Barrel Zones of PEEK

A

PEEK barrel heating must be progressive and gentle — the actually measured melt temperature is the final judge; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting refer...

Molds & Tooling barrel zoning progressive heating melt temperature plasticization

Q

Nozzle Temperature and Cold Slug of PEEK

A

Matching the nozzle temperature to the front zone is a hard requirement, and the cold slug well receives the front cold material; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a tro...

Processing Machinery nozzle temperature cold slug cold slug well short shot

Q

PEEK Cooling Time Far Exceeds Conventional Plastics

A

PEEK cooling involves crystallization latent heat — doubling the time is normal, do not forcibly compress the cycle; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting ...

Molding Process cooling time crystallization latent heat ejection deformation cycle

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

PEEK Injection Pressure and Back Pressure Window

A

PEEK requires high injection pressure and low back pressure — for shear discoloration, check back pressure and screw speed first; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a tro...

Injection Molding injection pressure back pressure screw speed shear

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카테고리

전체 주제 11636 Material Drying 1439 Injection Molding 1506 Molding Process 740 Molds & Tooling 1506 Processing Machinery 2025 Extrusion & Post 2239 Blow Molding 315 Thermoforming 141 Material Analysis 1343 Production & Quality 382