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일반적인 플라스틱 재료 문제에 대한 실질적인 답변

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Q

POM product chemical resistance decline

A

Chemical resistance failure is often related to the superposition of internal stress; mild processing technology and fillet design can maximize retention of POM's chemical resistance advantages.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent...

Processing Machinery POM；chemical resistance；stress cracking；medium；internal stress；verification

Q

POM hot runner color change difficulty

A

Color change efficiency depends on the hot runner structure; dead-corner-free design and production sequencing management can greatly reduce color change scrap and time.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；hot runner；color change；dead corners；cleaning；production sequencing

Q

POM product surface orange peel

A

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

Q

POM multi-cavity dimensional inconsistency

A

Multi-cavity consistency relies on the dual balance of runners and cooling; establishing dimensional archives by cavity position can precisely guide mold repair and process compensation.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling POM；multi-cavity；dimension；balance；runner；cooling

Q

POM product brittle cracking and insufficient toughness

A

Brittle cracking requires distinguishing between two types of causes: material degradation and structural stress; check temperature history for degradation, and check mold temperature and gate for stress, treating each accordingly.; after confirming effectiveness, fix the parameters and practices...

Molds & Tooling POM；brittle cracking；degradation；internal stress；weld line；toughness

Q

POM short shot and short fill

A

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

Q

POM exposed glass fiber floating fibers

A

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

Q

POM glass fiber reinforced aggravated warpage

A

The core of reinforced POM warpage is fiber orientation anisotropy; gate design and mold temperature are the main means, and severe cases need to be solved at the material level.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery POM；glass fiber reinforcement；warpage；orientation；anisotropy；gate

Q

POM product uneven surface gloss

A

Uneven gloss is a surface projection of the mold temperature distribution; water line balancing modification can solve it at once, and daily monitoring of water temperature and flow stability is needed.; after confirming effectiveness, fix the parameters and practices into the work instruction to...

Molds & Tooling POM；uneven gloss；mold temperature；water lines；replication；surface

Q

POM nozzle blockage

A

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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