Material Analysis
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PPS Wear-Resistant Grades
Problem Phenomenon
PPS sliding parts wear fast and are noisy; pure resin cannot meet wear resistance requirements
Cause Analysis
Pure PPS has average friction performance; PTFE-lubricated modified or carbon fiber reinforced grades significantly reduce friction coefficient and wear amount; special wear-resistant grades are selected for gears, bearing cages, etc.
Solution
①Select PTFE-lubricated or carbon fiber grades for sliding parts; ②Check conditions against the PV value; ③Match and manage mating surface roughness; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PPS wear resistance is achieved through modification; PTFE and carbon fiber are two mature low-friction routes; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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