在纯氧介质下使用的一些泵阀,需要使用干膜润滑剂。我国以前常使用二硫化钼粉与乙醇等溶剂调制。但此方法二硫化钼膜层与基体结合能力比较差,易产生不连续膜层,需经常补涂。80年代至今,引进了一些国外著名空分公司所用的技术,采用进口干膜润滑剂。使用方法有刷涂、喷涂,但大 Some pump valves used in pure oxygen media require the use of dry film lubricants. China used to use molybdenum disulfide powder and ethanol solvent modulation. However, this method of molybdenum disulfide film and substrate bonding ability is relatively poor, easy to produce discontinuous film, the need for regular Tu Tu. Since the 1980s, the technology used by some famous foreign branch companies has been introduced and imported dry film lubricant. Use a brush, spray, but big