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Practical answers to common plastic material challenges

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Q

PCABS Jetting Marks

A

PC/ABS jetting marks rely on gate wall-hitting arrangement; 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 jetting markgatewall-hugginginitial speed

Q

PCABS Weld Line Bubbles

A

For PC/ABS weld line bubbles, check venting and drying; 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

Material Drying weld line bubblesventingconfluencedrying

Q

PCABS Delayed Cracking

A

PC/ABS delayed cracking is a stress account; annealing and evaluation prevent it; 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 fu...

Processing Machinery delayed crackinginternal stressannealingevaluation

Q

PCABS Mold Deposit

A

PC/ABS mold deposits are cleaned regularly, more frequently for flame-retardant materials; 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 ...

Molds & Tooling mold depositprecipitationcleaningflame retardant

Q

PCABS Gate Mark Whitening

A

PC/ABS gate marks rely on position plus sharp trimming; 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 gate markwhiteningtrimmingsubmarine

Q

PCABS Cold Slug Marks

A

For PC/ABS cold slug marks, check the nozzle and cold slug well; 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

Processing Machinery cold slug marknozzlecold slug wellinjection speed

Q

PCABS Dimensional Deviation

A

PC/ABS dimensions rely on parameter locking and SPC monitoring; 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

Material Drying dimensional deviationshrinkageSPCparameters

Q

PCABS Ejector Whitening and Cracking

A

For PC/ABS ejector whitening, check cooling and ejection; be more careful with thin-walled parts; 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 pr...

Molds & Tooling ejector whiteningejector pincoolingthin wall

Q

PCABS Mold Sticking and Scratching

A

For PC/ABS mold sticking, first reduce holding pressure, then draft angle and polishing; 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...

Molds & Tooling mold stickingholding pressuredraft angleejection

Q

PCABS Discoloration and Yellowing

A

For PC/ABS yellowing, check thermal history first, then regrind and color masterbatch; 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 t...

Processing Machinery discolorationthermal historyregrindcolor masterbatch

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