Oil-free screw compressor coated with a base resin, a solid lubricant and a heat-resistant additive
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United States of America Patent
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Apr 17, 2018
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app pub date -
Jul 7, 2014
filing date -
Oct 26, 2010
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In order to prevent deterioration in performance of an oil-free screw compressor and scuffing caused by rust, surfaces of both male and female rotors are coated with heat-resistance coatings containing a solid lubricant. A coating contains Polyimide resin to which Molybdenum disulfide, as a solid lubricant, and Aluminum oxide and Titanium oxide, as additives, are added. Accordingly, it is possible to realize a coating that is higher in heat resistance and longer in lifetime than a conventional one.
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