Molds & Tooling
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PA66 glass fiber mold wear
Problem Phenomenon
After 100,000 shots of glass fiber PA66 mass production, flash increases and dimensions drift, and mold life drops sharply
Cause Analysis
Glass fiber continuously abrades mold steel, and ordinary steel cannot withstand long-cycle production; wear starts from the gate and cavity surface and gradually manifests as flash and dimensional loss of control
Solution
①Use H13 or S136 hardened mold steel for mass production exceeding 100,000 shots; ②Embed wear-resistant inserts in the gate area; ③Establish a regular mold wear detection and maintenance plan
Key Takeaway
Mold investment for glass fiber PA66 must be made upfront; hardened steel plus wear-resistant inserts plus regular detection is the standard configuration for long-life mass production; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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