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聚四氟乙烯(PTFE)的油封圈之开发,是在本世纪五十年代为解决导弹和宇航器械上的密封问题而进行的。但是到了今天,用于民用上的已占60％以上。 1.优点聚四氟乙烯,做为密封圈有以下优点: ①硬度:D50～65[美国材料试验标准
The development of polytetrafluoroethylene (PTFE) oil seals was carried out in the 1950s to address the sealing problems of missiles and aerospace equipment. But today, more than 60% is used for civil use. 1. Advantages PTFE, as the seal has the following advantages: ① hardness: D50 ~ 65 [American Materials Testing Standards