Processing Machinery
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PSU Wide-Temperature-Range Dimensional Integrity
Problem Phenomenon
【Problem Phenomenon】Sulfone parts are assembled with metal components, and fit stability over a wide temperature range is highly required
Cause Analysis
Sulfones resist water and chemicals without degradation over a wide temperature range of -40 to 204℃, and their rigidity and dimensional integrity allow integration with steel components in harsh-environment assemblies; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
Check metal insert assembly according to wide-temperature-range CTE differences; use dimensional stability for precision integration; verify fit reliability by damp-heat cycling; after adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
Sulfones maintain dimensional integrity from -40 to 204℃, naturally compatible with steel part integration; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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