This kind of air compressor cylinder basically does not include any oil content in, the piston ring and packing is commonly ptfe.

这种空压机气缸中基本上不含油，其活塞环和填料一般为聚四氟乙烯。

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The use of plane packing in nitrogen hydrogen gas compressor in the plant shows that the packing has features as simple structure, easy installation, good sealing and long service life.

平面填料在该厂氮氢气压缩机上的应用表明，该填料结构简单，安装方便，密封效果好，使用寿命长。

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Based on the fretting characteristics of the packing box in a super high pressure compressor and its working condition, the fretting of the packed box was considered to be induced with fretting.

根据超高压压缩机填料盒磨损的特征和工况条件，判断填料盒的磨损是由于微动磨损造成的。

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