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Yaygın plastik malzeme zorluklarına pratik yanıtlar

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POM mold fouling deposition

Mold fouling is a typical mold contamination in POM processing; combine temperature control with regular cleaning, and reduce precipitates at the material grade level when necessary.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；mold fouling；precipitation；deposition；mold wiping；grade

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POM obvious gate marks

Gate marks affect appearance and stress distribution; select the gate form according to the product appearance grade, and submarine gates suit automation and appearance requirements.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；gate marks；appearance；shear；submarine gate；design

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POM product dimensions too small

Undersized dimensions are adjusted in the opposite direction to oversized ones; first determine the feeding state before changing parameters, and avoid large simultaneous adjustments of holding pressure and mold temperature introducing new fluctuations.; after confirming effectiveness, fix the pa...

Molds & Tooling POM；undersized dimensions；shrinkage；holding pressure；mold temperature；adjustment

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POM product dimensions too large

Oversized dimensions point to excessive feeding or high mold temperature; POM shrinkage is sensitive to holding pressure, and dimensional debugging should be based on measured shrinkage.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；oversized dimensions；holding pressure；shrinkage；mold temperature；compensation

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POM regrind blending performance degradation

The thermal degradation cumulative effect of POM regrind is obvious; ratio control and classification management are the bottom line, and regrind should be used cautiously in stressed parts and precision parts.; after confirming effectiveness, fix the parameters and practices into the work instru...

Processing Machinery POM；regrind；degradation；embrittlement；ratio；management

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POM nozzle leakage and drooling

Drooling both wastes raw material and introduces cold material defects; temperature, back pressure, and nozzle structure are adjusted coordinately, and an anti-drool structure is recommended for POM.; after confirming effectiveness, fix the parameters and practices into the work instruction to pr...

Injection Molding POM；nozzle；drooling；cold material spots；back pressure；temperature

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POM black speck outbreak at startup after shutdown

Shutdown management is the key link in POM black speck control; standardized operation of cleaning before shutdown and lowering heat preservation can avoid batch scrapping at each startup.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recur...

Processing Machinery POM；shutdown；startup；black specks；carbonization；cleaning

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POM formaldehyde odor exceeding standard in workshop

Formaldehyde is an occupational health risk in POM processing; temperature red line plus shutdown cleaning plus ventilation testing constitute a complete gas protection system.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery POM；formaldehyde；odor；ventilation；occupational health；safety

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POM ejection scratches and ejector whitening

Ejection defects are a manifestation of imbalance between the demolding system and gripping force; balanced ejection combined with reduced gripping protects product surface quality.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；ejector whitening；scratches；ejection；ejector pins；gripping

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POM precision edge flash

POM low-viscosity melt is sensitive to parting line precision; worsening flash indicates mold wear, and timely overhaul is needed to avoid batch dimensional defects.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；flash；clamping force；parting line；wear；precision parts

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Tüm Konular 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

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