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2018-01-28View Original

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Reply #22018-01-28
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Reply #32018-01-30
本帖最后由 tie008 于 2018-1-30 08:11 编辑 干气密封是20世纪60年代末期在气体动压轴承的基础上通过对机械密封进行根本性改进发展起来的一种新非接触式密封,实际上主要就是通过在机械密封动环上增开了动压槽以及随之相应设置了辅助系统而实现密封端面的非接触运行。英国的约翰克兰公司于70年代末期率先将干气密封应用到海洋平台的气体输送设备上并获得成功。干气密封最初是为解决高速离心式压缩机轴端密封问题而出现的,由于密封非接触式运行,因此密封摩擦副材料基本不受PV值的限制,特别适合做为高速高压设备的轴端密封。 ~~~ 国内做干气密封的不少,一通和川密的都不错~~~
Reply #42018-01-30
国内有丹东克隆,和沈北碳
Reply #52018-01-31
四川日机、沈阳北碳、东营海森等

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