Molds & Tooling
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PA66 glass fiber mold and screw wear
Problem Phenomenon
GF-PA66 mass production equipment wears fast, flash increases, dimensions drift.
Cause Analysis
Glass fiber abrasion; high temperature aggravates wear; GF is an abrasive and high-temperature nylon conditions are more demanding; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience.
Solution
①Wear-resistant steel + coating; ②bimetallic screw; ③regularly inspect wear-prone parts (gate, parting line, ejector pins); ④establish a life management system for molds and screws; ⑤evaluate wear amount and make process compensation.
Key Takeaway
GF-PA66='abrasive + high temperature': hardware needs dual upgrade; wear-resistant materials and life management are the material basis for quality assurance; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
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