Processing Machinery
5 조회수
TPU Oil and Fuel Resistance
문제 현상
TPU seals have a swelling rate far lower than NBR in mineral oil, becoming the first choice
원인 분석
Polyester-type TPU has extremely strong resistance to mineral oil, lubricating oil, hydraulic oil, fuel and most non-polar hydrocarbon solvents, with a swelling rate far lower than rubbers such as NBR
해결 방법
①Prefer polyester-type TPU for oil-medium sealing; ②Conduct immersion verification according to the specific oil product; ③Fully exploit the oil resistance advantage in fuel systems; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
핵심 요약
TPU's oil resistance is the core competitiveness of its sealing applications; polyester type performs excellently in oil media; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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