Processing Machinery
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PCABS screw configuration
Problem Phenomenon
【Problem Phenomenon】General-purpose screw processing PC/ABS has uneven plasticization, glass fiber grades wear fast
Cause Analysis
PC/ABS suits gradual-type screws with L/D 20-24:1 and compression ratio 2-2.5:1; glass fiber grades need bimetallic barrels and wear-resistant screws
Solution
Configure according to L/D20-24 gradual screw; wear-resistant upgrade for glass fiber grades; check compression ratio for plasticization fluctuation; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PC/ABS screw L/D20-24 gradual type, glass fiber needs wear resistance; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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