Molds & Tooling
4 조회수
PTFE Overheating Degradation
문제 현상
PTFE shows yellowing, carbonization, or smoke release, chemical resistance and mechanical integrity decrease, a safety hazard.
원인 분석
Sintering temperature exceeding 380℃ causes thermal degradation; local hot spots in ovens, molds, or heaters; prolonged exposure above the recommended temperature upper limit; above 380℃ releases toxic fluoride gases.
해결 방법
①Precisely monitor sintering temperature not to exceed 380℃; ②Avoid prolonged exposure to the temperature upper limit; ③Use calibrated thermocouples and uniform heating equipment; ④Ventilation protection for high-temperature operations.
핵심 요약
PTFE's 380℃ is a double red line of performance and safety; local hot spots are more dangerous than average temperature; toxic gas protection is an occupational health requirement.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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