Problem & Solution

Practical answers to common plastic material challenges

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Q

ASA Demolding Mold Sticking

A

ASA mold sticking first check draft angle and polishing, excessive holding pressure also causes mold sticking; 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 f...

Molds & Tooling mold sticking draft angle polishing holding pressure

Q

ASA Discoloration Hue Drift

A

ASA discoloration check thermal history and color masterbatch, matrix degradation ruins weather resistance; 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 ...

Processing Machinery discoloration thermal history color masterbatch regrind

Q

ASA Black Speck Carbonization Contamination

A

ASA black specks check dead corners, hot runner, regrind, disassembly inspection is the last resort; 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 subsequ...

Molds & Tooling black speck carbonization dead corner hot runner

Q

ASA Uneven Gloss

A

ASA gloss difference first check mold temperature uniformity, cavity polishing follows; 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 subsequent similar p...

Molds & Tooling uneven gloss mold temperature polishing replication

Q

ASA Flow Mark Ripples

A

ASA flow marks are the front condensation signal, raising temperature and speed improves; 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 subsequent similar...

Injection Molding flow mark front condensation mold temperature injection speed

Q

ASA Tiger Stripe Light-Dark Pattern

A

ASA tiger stripes are front instability, temperature and speed dual stabilization; 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 subsequent similar problems

Molds & Tooling tiger stripe front temperature stability speed

Q

ASA Jetting Snake Pattern

A

ASA jetting is cured by gate wall-contact 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 subsequent similar problems

Molds & Tooling jetting gate wall contact initial speed

Q

ASA Burnt Air Trap

A

ASA burnt first open venting then reduce final-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 subsequent similar problems

Molds & Tooling burnt air trap venting final-stage speed

Q

ASA Bubbles and Air Pockets

A

ASA bubbles are classified by distribution, symptomatic treatment is effective; 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 subsequent similar problems

Material Drying bubble moisture degradation shrinkage cavity

Q

ASA Short Shot Insufficient Filling

A

ASA short shot troubleshoot in the order of temperature, venting, gate, flow length; 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 subsequent similar prob...

Molds & Tooling short shot venting gate flow length

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