Molds & Tooling
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PCABS Mold Deposit
Problem Phenomenon
[Problem Phenomenon] PC/ABS long-term production causes mold surface deposit and venting blockage
Cause Analysis
Flame retardants and additives precipitate and deposit; more obvious in flame-retardant grades; high mold temperature accelerates migration; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Regularly clean mold venting; analyze deposits and adjust the formula; shorten the cleaning cycle for flame-retardant materials; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
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 in the future
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