Abstract: A grinding wheel includes a plurality of wheel tips. The plurality of wheel tips include a plurality of diamond abrasive grains and a bonding material mixed with the diamond abrasive grains. The plurality of diamond abrasive grains have a ratio of a length in a long axis direction to a width in a short axis direction of 1:2.5 to 1:3.5 and includes edges or vertices having a grinding angle of 90° or less.

Abstract: A self-healing alloy contains 5 to 11% by weight of molybdenum (Mo), iron (Fe) as a remainder, and unavoidable impurities. A method for manufacturing the self-healing alloy includes heat treating the alloy or preparing an alloy raw material powder and sintering, homogenizing, and cooling the alloy raw material powder.

Abstract: Provided are a silicone release film and a protective film for adhesive films and adhesive tapes including the same. The silicone release film may provide excellent delamination characteristics in various peel-off speed ranges regardless of external environmental changes, such as passage of time or temperature changes.

Abstract: A rotary shaft support structure supports each of both ends of a rotary shaft passing through a center of a gas turbine and includes a main body arranged around a circumference of the rotary shaft and mounted to each of a compressor casing and a turbine casing of the gas turbine; a pad member disposed between the main body and the circumferential surface of the rotary shaft and biased against the circumferential surface of the rotary shaft for supporting the rotary shaft; a pivot protrusion protruding from the pad member toward the main body; and a pivot housing for receiving the pivot protrusion to rotatably support the pad member. The mechanical bias is supplied by a spring member seated in the mounting groove to bias the pivot housing against the pivot protrusion. The rotary shaft support structure exhibits performance as a bearing by absorbing some of an applied load.

Abstract: A rotary shaft support structure supports each of both ends of a rotary shaft passing through a center of a gas turbine and includes a main body arranged around a circumference of the rotary shaft and mounted to each of a compressor casing and a turbine casing of the gas turbine; a pad member disposed between the main body and the circumferential surface of the rotary shaft and biased against the circumferential surface of the rotary shaft for supporting the rotary shaft; a pivot protrusion protruding from the pad member toward the main body; and a pivot housing for receiving the pivot protrusion to rotatably support the pad member. The mechanical bias is supplied by a spring member seated in the mounting groove to bias the pivot housing against the pivot protrusion. The rotary shaft support structure exhibits performance as a bearing by absorbing some of an applied load.

Abstract: A ball-socket type tilting pad journal bearing configured to reduce friction between a tilting pad and a pivot includes a housing body, a plurality of tilting pads disposed inside the housing body, and a plurality of pivots fixed on an inner surface of the housing body. An oil collection unit for collecting oil is provided in at least one of an outer circumferential surface of each of the pivots and a socket of each of the tilting pads.

Abstract: A ball-socket type tilting pad journal bearing configured to reduce friction between a tilting pad and a pivot includes a housing body, a plurality of tilting pads disposed inside the housing body, and a plurality of pivots fixed on an inner surface of the housing body. An oil collection unit for collecting oil is provided in at least one of an outer circumferential surface of each of the pivots and a socket of each of the tilting pads.