Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PMMA Flash

A

PMMA flash requires prevention first, as trimming damage is large; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Molds & Tooling PMMAflashtrimmingchipping

Q

PMMA Burnt

A

PMMA burnt is handled by trapped air venting; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PMMAburnttrapped airventing

Q

PMMA Weld Line Obvious

A

Weld lines on transparent parts must be avoided by gate design; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PMMAweld linetransparent partsgate

Q

PMMA Bubbles Three Routes

A

Bubbles are systematically troubleshot by the three routes of causes; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Material Drying PMMAbubblesthree routesair shot

Q

PMMA Solvent Cracking

A

PMMA ESC prevention requires avoiding solvents plus reducing stress; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future

Processing Machinery PMMAsolventESCalcohol

Q

PMMA First Article Optical Verification

A

First articles of PMMA optical parts must be optically examined; four verifications plus polarized stress inspection are the institutional bottom line; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Material Analysis PMMA;first article verification;light transmittance;polarized light;optics

Q

PMMA Storage Deformation

A

PMMA sheet storage is flatness management; uniform support plus stable temperature prevents deformation before it happens; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PMMA;storage;warpage;support;flatness

Q

PMMA Static Dust Attraction

A

PMMA static dust attraction is solved by treatment rather than repeated wiping; anti-static process is included in delivery standards; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PMMA;static electricity;dust attraction;anti-static;cleaning

Q

PMMA Metal Insert Stress

A

PMMA insert stress is a typical delayed failure; preheating, thickening, and reducing inserts are used together; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PMMA;inserts;stress;delayed cracking;preheating

Q

PMMA Overpacking Cracking

A

PMMA gate area cracking is the signature of overpacking; changing gate type plus reducing pressure is a combination punch; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Injection Molding PMMA;overpacking;direct gate;stress;cracking

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