Problema y solución

Respuestas prácticas a los desafíos comunes de los materiales plásticos

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Q

PMMA Material Mixing Delamination

A

Transparent material mixing is highly concealed; management systems are more reliable than after-the-fact sorting, and mixed batches should be isolated in full.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.

Extrusion & Post PMMA; delamination; material mixing; peeling; management; cleaning

Q

PMMA Extruded Sheet Stress Streaks

A

The internal stress of extruded sheets affects secondary processing safety; stress testing and annealing are necessary preparations before further processing.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.

Extrusion & Post PMMA; extrusion; stress streaks; annealing; haul-off; polarized light

Q

PMMA Solvent Attack Cracking

A

Solvent cracking is the combined action of stress and medium; media compatibility evaluation of the use environment should be included in product design verification.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.

Extrusion & Post PMMA; solvent; cracking; environmental stress; cleaning agent; annealing

Q

PMMA Gate Stress Whitening

A

Gate whitening is a sign of local stress overload; matched adjustment of gate and holding pressure combined with annealing can restore transparent appearance.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.

Extrusion & Post PMMA; gate; whitening; stress; holding pressure; annealing

Q

PMMA Product Spraying/Printing Issues

A

Adhesion = clean surface + low stress.

Extrusion & Post PMMA; spraying; adhesion; stress

Q

PMMA Annealing Process Missing

A

Annealing = the factory insurance for transparent structural parts.

Extrusion & Post PMMA; annealing; residual stress; cracking

Q

PMMA Product Delamination

A

Delamination = contamination.

Extrusion & Post PMMA; delamination; contamination; mold release agent

Q

PLA 3D Printing Rough Surface

A

The PLA printing surface is an inherent process attribute; parameter optimization plus post-treatment are the two improvement routes; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PLA; FDM; rough surface; layer height; post-treatment

Q

PLA 3D Printing Nozzle Temperature

A

230℃ is the sweet spot for PLA printing strength; stringing problems are hedged with retraction parameters; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PLA; FDM; 230℃; strength; retraction

Q

PLA 3D Printing Interlayer Strength

A

PLA printing interlayer strength relies on thermal diffusion; high temperature, low layer height and low cooling are the three elements to improve the Z-direction; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PLA; FDM; interlayer strength; nozzle temperature; layer height

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