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Q

PCABS mold temperature and internal stress

A

PC/ABS mold temperature 60-80℃, stress parts take the upper limit; 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 later

Molds & Tooling mold temperatureinternal stresswarpagesurface

Q

PCABS barrel zone temperature

A

PC/ABS barrel 200 to 260℃ progressive, nozzle 260℃ is the upper limit; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery barrel zoningprogressivenozzleplasticization

Q

PCABS hopper heat preservation 80℃

A

PC/ABS hopper heat preservation 80℃, 2 hours residence is the moisture regain warning line; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying hopper heat preservationmoisture regain80℃residence

Q

PCABS drying temperature grading

A

Two PC/ABS drying grades coexist, high PC ratio and high requirements go 100-120℃; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying drying temperaturegradingPC contentmoisture content

Q

PCABS moisture content 0.02% red line

A

0.02% is the PC/ABS moisture red line, release by actual measurement not by experience; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying moisture content0.02%hydrolysismoisture meter

Q

PCABS PC component hygroscopic characteristics

A

PC/ABS drying follows PC, 100-120℃×3-4h is the benchmark; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Material Drying dryingPC componenthydrolysis100-120℃

Q

PCABS color masterbatch carrier

A

The matching of PCABS color masterbatch carrier is color quality; procedure and verification are both important; management prevents defects.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PCABS；color masterbatch；carrier；mismatch；color change；streaks

Q

PCABS cold slug well

A

PCABS cold slug well is a mold design detail; function and maintenance are both important; troubleshooting ensures quality.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Molds & Tooling PCABS；cold slug well；degradation；nozzle；mold；cleaning

Q

PCABS screw retraction

A

Air suction from PCABS screw retraction is the cause of silver streaks; reduction and inspection are both important; identification ensures accurate diagnosis.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Processing Machinery PCABS；screw retraction；air；spray silver streak；nozzle；gap

Q

PCABS back pressure adjustment

A

The step adjustment and observation cycles of PCABS back pressure are fine craftsmanship; shear heat management protects the material; monitoring prevents degradation.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Production & Quality PCABS；back pressure；50psi；shear heat；step；observation

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