Korea Institute of Science and Technology

Jun Hyeon Jo

Chang Ho Kim

Yong Bok Lee

Dong Jin Park

Jeon Kook Lee

Hosung Kong

Hung Gu Han

Byoung Su Lee

Embodiments of the present invention may provide a coating material having heat resistance, abrasion resistance and low friction characteristics, which is coated on an operating component such as a rotating shaft working at a high speed without oil supply in a medium temperature environment (400&#xb0; C.&#x2dc;500&#xb0; C.). This is so that the operating body can sufficiently withstand friction, heat generation and abrasion caused by contact with a bearing. The coating material of the present invention comprises 15 to 25 wt % antimony trioxide (SbO), 50 to 70 wt % binder, 10 to 20 wt % tungsten disulphide (WS) and 5 to 15 wt % silver (Ag). The binder comprises 60 to 80 wt % nickel (Ni) and 20 to 40 wt % chromium (Cr).

Medium temperature coating material for high speed turbomachinery and method of coating same

There is provided a coating material having heat and abrasion resistance and low friction characteristics, as well as a method of utilizing the same. The coating material comprises 20 to 40 wt % CrO, 40 to 60 wt % binder, 10 to 20 wt % WS, and 10 to 20 wt % Ag. The binder comprises 60 to 80 wt % Ni and 20 to 40 wt % Cr. The binder may further comprise above 0 to 10 wt % Al. The coating method comprises the steps of pulverizing the coating material, pulverizing a binder, applying the pulverized binder to a surface of a workpiece to form a first layer, applying the pulverized coating material to the first layer to form a second layer, and grinding and polishing the surface of the second layer.

Coating material having heat and abrasion resistance and low friction characteristics

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Daegu, South Korea

Jun Hyeon Jo