COATING MATERIAL HAVING HEAT AND ABRASION RESISTANCE AND LOW FRICTION CHARACTERISTICS AND COATING METHOD THEREOF

摘要

A coating agent having heat and abrasion resistance and low friction characteristics coated on the operating body such that an operating body such as a rotation shaft operated at high speed in the non-oiled state under high temperature(700 to 900 deg.C) environment can well resist against friction, heating and abrasion caused by contact of the operating body with bearings, and a coating method capable of maintaining durability of the coating agent coated on the operating body for a long time are provided. A coating agent coated on a surface of an operating body of machinery and equipment comprises: 20 to 40 wt.% of chromium oxide(Cr2O3), 40 to 60 wt.% of a binder, 10 to 20 wt.% of tungsten disulfide(WS2), and 10 to 20 wt.% of silver(Ag). A coating agent coated on a surface of an operating body of machinery and equipment comprises: 20 to 40 wt.% of chromium oxide(Cr2O3), 30 to 50 wt.% of a binder, 10 to 20 wt.% of tungsten disulfide(WS2), 10 to 20 wt.% of silver(Ag), and 10 to 20 wt.% of molybdenum oxide(MoO3). A coating method of a coating agent coated on a surface of an operating body(19) of machinery and equipment comprises the steps of: (a) crushing the coating agent; (b) crushing a binder; (c) primarily coating the crushed binder on the surface of the operating body; (d) secondly coating the crushed coating agent on a first coating layer(22) of the binder; and (e) grinding and polishing a surface of a second coating layer(24) of the coating agent.