Slide member and method for producing same

Abstract

Raw material powder containing metal powder as a main component is molded to form a metal powder molded body (3′), and the metal powder molded body (3′) is sintered to form a metal substrate (3). Further, a lubricating member (4) is made of an aggregate of graphite particles (13), and at least a part of a bearing surface (11) is formed of the lubricating member (4). The lubricating member (4) is fitted into the metal powder molded body (3′). After that, the metal powder molded body (3′) is sintered, and at this time, the lubricating member (4) is fixed onto the metal substrate (3) with a contraction force (F) generated in the metal powder molded body (3′).

1 - 10 . (canceled) 
     
     
         11 . A method of manufacturing a sliding member having a sliding surface that slides with a mating member,
 the method comprising:   firing powder containing solid lubricant powder and a binder, to thereby form a lubricating member;   molding raw material powder containing metal powder as a main component to form a metal powder molded body, and bringing the lubricating member into contact with the metal powder molded body so that a part of the lubricating member appears on a surface to be the sliding surface; and   heating the lubricating member and the metal powder molded body at a sintering temperature under a state in which the lubricating member is brought into contact with the metal powder molded body, to thereby form a metal substrate by sintering of the metal powder molded body, and fix the lubricating member onto the metal substrate with a contraction force generated in the metal powder molded body during the sintering.   
     
     
         12 . A method of manufacturing a sliding member having a sliding surface that slides with a mating member,
 the method comprising:   molding first powder containing, as a main component, coated powder formed by coating solid lubricant powder with a metal and second powder containing metal powder as a main component so that the first powder appears on a surface to be the sliding surface under a state in which filling regions of the first powder and the second powder are divided, to thereby form a molded body;   heating the molded body at a sintering temperature, to thereby form a lubricating member by sintering of the first powder, and form a metal substrate by sintering of the second powder; and   diffusing, during the sintering, the metal of the coated powder contained in the first powder into the metal powder of the second powder, to thereby fix the lubricating member onto the metal substrate.   
     
     
         13 . The method of manufacturing a sliding member according to  claim 11 , wherein the coated powder comprises plated powder formed by subjecting the solid lubricant powder to metal plating. 
     
     
         14 . The method of manufacturing a sliding member according to  claim 11 , further comprising subjecting the sliding surface to sizing after fixing the lubricating member onto the metal substrate. 
     
     
         15 . The method of manufacturing a sliding member according to  claim 12 , further comprising subjecting the sliding surface to sizing after fixing the lubricating member onto the metal substrate.