Problema e solução

Respostas práticas para os desafios comuns dos materiais plásticos

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Q

PCABS Silver Streaks Four Causes

A

PC/ABS silver streaks have four causes; investigate one by one without blind adjustment; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in...

Material Drying silver streaksmoisturethermal decompositionventing

Q

PCABS Stress Cracking

A

Internal stress and media are the mechanism of PCABS stress cracking; annealing is an effective countermeasure; evaluation ensures application safety.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Extrusion & Post PCABS;stress cracking;internal stress;chemical media;annealing;assembly

Q

PCABS Surface Gloss

A

Mold temperature and polishing are the foundation of PCABS surface gloss; process and standards are equally important; inspection ensures consistency.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PCABS;surface gloss;mold temperature;polishing;process;inspection

Q

PCABS Weld Line Strength

A

PC/ABS weld line strength is discounted to 60%, with temperature and relocation as dual countermeasures; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for sim...

Molds & Tooling weld lineconfluencestrengthoverflow well

Q

PCABS Burnt Marks

A

For PC/ABS burning, first improve venting and then reduce end-stage speed; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future

Molds & Tooling burnttrapped gasventingend-stage speed

Q

PCABS Delamination and Peeling

A

For PC/ABS delamination, check melt temperature and shear; contamination also causes layer separation; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for simil...

Extrusion & Post delaminationmelt temperatureshearcontamination

Q

PCABS Warpage Cooling

A

Cooling uniformity is the core of PCABS warpage; independent temperature control and compensation; monitoring ensures the effect.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PCABS;warpage;cooling;mold temperature;cycle;compensation

Q

PCABS Moisture Silver Streaks

A

The U-shaped feature of PCABS moisture silver streaks is a diagnostic clue; the actual performance of the dryer is more important than the settings; verification ensures the effect.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying PCABS;moisture silver streaks;U-shaped;dryer;dew point;verification

Q

PCABS Thermal Silver Streaks

A

The distinction between PCABS thermal silver streaks and moisture silver streaks is precise diagnosis; temperature and residence time are the adjustment directions; monitoring prevents degradation.; after confirming effectiveness, fix the parameters and practices into the work instruction to prev...

Material Drying PCABS;thermal silver streaks;temperature;residence time;degradation;distinction

Q

PCABS Silver Streaks Still Appear After Drying

A

Equipment and process troubleshooting of PCABS silver streaks after drying is a deep diagnosis; back pressure and residence time are common omissions; systematic adjustment.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying PCABS;silver streaks;back pressure;residence time;screw;nozzle

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