Problem & Solution

Practical answers to common plastic material challenges

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Q

Filling Challenges Brought by Rapid LCP Crystallization

A

Fast crystallization is a double-edged sword: only high-speed filling plus high mold temperature can use its benefit and avoid its harm; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive a...

Production & Quality rapid crystallization high-speed injection filling window front freezing

Q

High LCP Cost and Material Substitution Evaluation

A

LCP's high cost should be absorbed by thin-wall design and regrind management; substitute materials must pass soldering verification; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Production & Quality LCP cost material substitution PA9T PPS

Q

HDPE holding pressure shrinkage compensation management

A

HDPE holding pressure is graded by wall thickness; gate freeze-off analysis is the scientific method to determine the holding time; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Production & Quality HDPE; holding pressure; 60-80%; 2-5 seconds; freeze-off

Q

HDPE pipe internal stress cracking

A

Pipe internal stress cracking has a lag; uniform slow cooling is the fundamental prevention, and notch treatment and annealing can be used as remedial measures.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Production & Quality HDPE; pipe; internal stress; cracking; cooling; annealing

Q

HDPE product ESCR stress cracking

A

HDPE holding chemicals, ESCR verification cannot be skipped.

Production & Quality HDPE; ESCR; stress cracking; medium; grade

Q

COC Low Water Absorption

A

COC low water absorption is the core advantage of dimensional stability; surface management is the detail; verification ensures precision applications.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Production & Quality COC; low water absorption; 0.01%; dimensional stability; surface; precision

Q

COC Glass Transition Temperature Tg

A

COC's high Tg is a heat resistance advantage; processing temperature matching is the key; verification ensures performance.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Production & Quality COC; glass transition temperature; 140-170℃; heat resistance; Tg; verification

Q

COC UV Light Yellowing

A

COC is not a naturally weather-resistant material; UV-stabilized grades are a prerequisite for outdoor applications; accelerated aging data supports life design.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence

Production & Quality COC; UV; yellowing; weather resistance; photo-oxidation; outdoor

Q

ASA tensile strength 48MPa

A

ASA mechanical performance is the application foundation; testing ensures quality; matching ensures function.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Production & Quality ASA；tensile strength；48MPa；flexural；hardness；testing

Q

ASA melt index 15g/10min

A

ASA melt index is a flowability indicator; process matching ensures quality; selection ensures application.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence

Production & Quality ASA；melt index；15g/10min；flowability；process；grade

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