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POM product surface orange peel

Orange peel is a manifestation of poor replication; temperature and speed improve replication capability, and optical or appearance surfaces also need high mold polishing.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding POM；orange peel；surface；replication；mold temperature；polishing

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POM short shot and short fill

POM short shots are troubleshooted from the three paths of pressure, temperature, and runners; when increasing temperature and speed, take care not to cross the decomposition temperature red line.; after confirming effectiveness, fix the parameters and practices into the work instruction to preve...

Injection Molding POM；short shot；short fill；thin wall；pressure；runner

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POM exposed glass fiber floating fibers

Floating fibers affect appearance and coating quality; temperature and speed improve surface encapsulation capability and are a general method for surface management of reinforced materials.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent rec...

Injection Molding POM；glass fiber；floating fibers；surface；encapsulation；temperature

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POM nozzle blockage

Nozzle blockage causes filling fluctuation and pressure abnormality; temperature stability and shutdown operation standards are the prevention priorities.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding POM；nozzle；blockage；temperature；carbonization；cleaning

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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 gear precision out of tolerance

The core of precision POM gears is the predictability of shrinkage; a stable process window plus sufficient aging is the prerequisite for ensuring tooth profile precision.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Injection Molding POM；gear；precision；shrinkage；dimensional stability；inspection

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POM flow lines and flow marks

Flow marks reflect a melt front temperature management problem; POM has good flowability and can be improved by appropriately increasing temperature and speed, but care must be taken not to exceed the decomposition temperature upper limit.; after confirming effectiveness, fix the parameters and p...

Injection Molding POM；flow marks；ripples；melt front；temperature；speed

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POM weld line low strength

POM weld line strength depends on front temperature and meeting conditions; temperature and speed adjustments are constrained by the decomposition upper limit, and gate design should be used to avoid critical stressed areas when necessary.

Injection Molding POM；weld line；strength；meeting；front temperature；gate

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POM local discoloration trapped air burning

The root cause of local burning is adiabatic compression of trapped air; venting design and injection speed are the two major adjustment means, and vent groove depth must be opened according to POM characteristics specifications.; after confirming effectiveness, fix the parameters and practices i...

Injection Molding POM；burning；trapped air；venting；adiabatic compression；injection speed

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POM melt overheating decomposition and spitting

POM decomposition spitting involves both quality and safety risks; managing melt temperature and residence time as safety red lines is the most important on-site habit in POM processing.

Injection Molding POM；decomposition；spitting；formaldehyde；melt temperature；safety

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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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