Injection Molding
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TPE Tool Handle
Problem Phenomenon
TPE tool handles feel good but have poor oil resistance, or wear quickly
Cause Analysis
TPE tool handles are soft, anti-slip, and excellent in feel; but oil resistance is average and they become sticky in machine oil environments; wear is fast in high-friction scenarios; overmolding hard plastic strengthens the structure; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Choose TPE for general handles; ②Choose oil-resistant grades or TPU for machine oil environments; ③Overmolding reinforcement for high-friction scenarios; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
TPE tool handles are feel-first applications; oil resistance and wear resistance are the two major boundaries; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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