Production & Quality
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PEEK and Other High-Temperature Material Selection
Problem Phenomenon
【Problem Phenomenon】Selection among PEEK, PEKK, PI, and PPS wavers, and cost and performance are difficult to balance
Cause Analysis
PEEK has balanced comprehensive performance but high price; PPS has low cost and can cover some applications; PEKK has slightly higher temperature resistance; PI has the highest temperature resistance but limited processing; select materials according to needs to avoid excess performance
Solution
Select PEEK for comprehensive working conditions below 260℃; verify PPS for cost-sensitive applications where performance meets standards; evaluate PEKK or PI above 260℃; establish a material selection decision matrix
Key Takeaway
PEEK selection guards against excess performance; PPS and PEKK each have their substitution ranges; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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