Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

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Q

PLA product degradation odor

A

Odor is a signal of degradation; it can be controlled by thermal management.; after confirming effectiveness, fix 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 PLA;odor;degradation;lactic acid;temperature;drying

Q

PLA film brittle tearing

A

PLA film relies on plasticization and blending to improve toughness; bio-based toughening agents maintain degradability.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PLA;film;brittleness;plasticizer;blending;stretching

Q

PLA blown film bubble instability

A

PLA blown film requires melt strength modification; long-chain branching agents and blending are effective means.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PLA;blown film;film bubble;melt strength;chain extender;blending

Q

PLA extrusion melt fracture

A

Melt fracture is shear instability.; after confirming effectiveness, fix 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

Extrusion & Post PLA;extrusion;melt fracture;sharkskin;die;shear

Q

PLA extrusion sheet uneven thickness

A

Sheet thickness relies on die lip and temperature control management.; after confirming effectiveness, fix 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

Extrusion & Post PLA;extrusion;sheet;thickness;die lip;thickness measurement

Q

PLA product bubbles (air traps)

A

The air trap position is the venting point.; after confirming effectiveness, fix 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 PLA;bubble;air trap;venting;speed;gate

Q

PLA product weld lines

A

Weld lines rely on temperature and gate management.; after confirming effectiveness, fix 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 PLA;weld line;temperature;gate;convergence;overflow well

Q

PLA product poor surface gloss

A

PLA's gloss advantage must be realized through the process.; after confirming effectiveness, fix 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 PLA;gloss;mold temperature;polishing;crystallization;degradation

Q

PLA product sticking to mold

A

Mold sticking is solved from temperature and structure.; after confirming effectiveness, fix 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 PLA;mold sticking;mold temperature;draft;mold surface;release agent

Q

PLA product ejector whitening and cracking

A

Brittle PLA ejection requires distributed force and sufficient cooling.; after confirming effectiveness, fix 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 PLA;ejector whitening;cracking;ejection;cooling;draft

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Todos los temas 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