Problem & Solution

Practical answers to common plastic material challenges

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Q

PC Assembly Stress Cracking

A

PC assembly cracking is stress superposition; torque and interference must be controlled; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar probl...

Processing Machinery assembly stresstorqueinterferencecracking

Q

PC Weld Line Bubbles

A

For PC weld line bubbles, check venting and drying; after confirming effectiveness, solidify 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

Material Drying weld line bubblesventingconfluencedrying

Q

PC Delayed Cracking

A

PC delayed cracking is a stress debt; annealing and evaluation for prevention; after confirming effectiveness, solidify 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 ...

Processing Machinery delayed crackinginternal stressannealingevaluation

Q

PC Mold Deposit

A

PC mold deposit requires regular cleaning, with venting as the focus; after confirming effectiveness, solidify 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 mold depositprecipitationcleaningventing

Q

PC Gate Mark Whitening

A

PC gate marks rely on position plus sharp trimming; after confirming effectiveness, solidify 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 gate markswhiteningtrimmingsubmarine

Q

PC Cold Slug Marks

A

For PC cold slug marks, check the nozzle and cold slug well; after confirming effectiveness, solidify 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 cold slug marksnozzlecold slug wellinjection speed

Q

PC Jetting Marks

A

PC jetting marks rely on the gate wall-impinging arrangement; after confirming effectiveness, solidify 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 jetting marksgatewall attachmentinitial speed

Q

PC Flow Marks

A

For PC flow marks, raise the temperature and stabilize the speed; high viscosity is the internal cause; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting...

Injection Molding flow marksmold temperatureinjection speedviscosity

Q

PC Uneven Gloss

A

For PC gloss difference, check mold temperature uniformity; stress also affects it; after confirming effectiveness, solidify 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...

Molds & Tooling uneven glossmold temperaturepolishingstress

Q

PC Dimensional Deviation

A

PC dimensions rely on parameter locking and SPC monitoring; after confirming effectiveness, solidify 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

Material Drying dimensional deviationshrinkageSPCparameters

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