Slide Member and Production Process for Slide Member

Abstract

A slide member of the present invention is a slide member having a substrate ( 10 ) made of a metal; and a sliding layer ( 20 ) of a resinous powder being sintered integrally on at least one of the surfaces of the substrate ( 10 ), and is characterized in that it includes a solid-lubricant powder in the sliding layer ( 20 ). Further, it can be one having an intermediate layer, which intervenes between the substrate ( 10 ) and the sliding layer ( 20 ), and which is composed of a metal differing from that of the substrate ( 10 ). The slide member of the present invention is such that the adhesiveness is high, and has good sliding characteristics. Moreover, a production process of the present invention for a slide member is characterized in that it has: a laminating step of forming a powdery sliding layer, which is composed of a resinous powder and a solid-lubricant powder at least, on at least one of the surfaces of a substrate layer, which is composed of a metal; and a sintering step of sintering the substrate layer with the powdery sliding layer integrally. In accordance with this production process, it is possible to make a slide member, which has the substrate ( 10 ) and the sliding layer ( 20 ) at least. In accordance with the production process of the present invention for a slide member, it is possible to produce a slide member whose adhesiveness is high and which has good sliding characteristics.

1 . A slide member having a substrate made of a metal; and a sliding layer a resinous powder being sintered integrally on at least one of the surfaces of the substrate, 
 the slide member being characterized in that it includes a solid-lubricant powder in said sliding layer.    
   
   
       2 . The slide member set forth in  claim 1 , wherein at least said sliding layer is one which is discharge sintered while being pressurized with a mold.  
   
   
       3 . The slide member set forth in  claim 1 , wherein said substrate is a bulk body, or a sintered body, which is composed of a metal powder being sintered integrally with said sliding layer.  
   
   
       4 . The slide member set forth in  claim 1 , wherein said substrate includes at least one member of iron, aluminum, copper and magnesium.  
   
   
       5 . The slide member set forth in  claim 1 , wherein said sliding layer is a functionally-gradient-material layer in which a volume fraction of said solid-lubricant powder on its substrate side is lower than on an opposite substrate side.  
   
   
       6 . The slide member set forth in  claim 5 , wherein said functionally-gradient-material layer is a layer in which the proportion of said solid-lubricant powder changes continuously or stepwise from said substrate side to said opposite substrate side.  
   
   
       7 . The slide member set forth in  claim 1 , wherein said solid-lubricant powder includes at least one member of a molybdenum disulfide powder, a graphite powder and a fluorine compound powder.  
   
   
       8 . The slide member set forth in  claim 1 , wherein said resinous powder is a heat-resistant resinous powder composed of a heat-resistant resin.  
   
   
       9 . The slide member set forth in  claim 1 , wherein said resinous powder includes at least one member of polyamide imide resinous powders, polyimide resinous powders and polyether ether ketone resinous powders.  
   
   
       10 . The slide member set forth in  claim 1  having an intermediate layer, which intervenes between said substrate and said sliding layer, and which is composed of a metal differing from that of the substrate.  
   
   
       11 . The slide member set forth in  claim 10 , wherein said intermediate layer is an intermediate sintered-body layer, which is composed of a metal powder being sintered integrally with said substrate and said sliding layer.  
   
   
       12 . The slide member set forth in  claim 10 , wherein said intermediate layer includes at least one member of copper and aluminum.  
   
   
       13 . The slide member set forth in  claim 1 , wherein said substrate is a sliding component part for a compressor.  
   
   
       14 . A production process for a slide member being characterized in that it has: 
 a laminating step of forming a powdery sliding layer, which is composed of a resinous powder and a solid-lubricant powder at least, on at least one of the surfaces of a substrate layer, which is composed of a metal; and    a sintering step of sintering the substrate layer with the powdery sliding layer integrally.    
   
   
       15 . The production process for a slide member set forth in  claim 14 , wherein, in said sintering step, at least said powdery sliding layer is discharge sintered while being pressurized with a mold.  
   
   
       16 . The production process for a slide member set forth in  claim 14 , wherein said substrate layer is a powdery substrate layer, which is composed of a metal powder, or a bulk body.  
   
   
       17 . The production process for a slide member set forth in  claim 14 , wherein: prior to said laminating step, it has a powder preparing step of preparing two members or more mixture powders in which the volume fractions between said resinous powder and said solid-lubricant powder at least differ; and 
 in said laminating step, said powdery sliding layer is formed by laminating said two members or more mixture powders sequentially so that a volume fraction of said solid-lubricant powder on its substrate-layer side becomes lower than on an opposite substrate-layer side.    
   
   
       18 . The production process for a slide member set forth in  claim 14 , wherein said laminating step includes a step of forming a powdery intermediate layer, which is composed of a metal powder differing from that of the substrate layer, between said substrate layer and said powdery sliding layer.  
   
   
       19 . The production process for a slide member set forth in  claim 14 , wherein: said substrate layer is a bulk body; and, prior to said laminating step, it has an intermediate-layer forming step of forming an intermediate layer, which is composed of a metal differing from that of the substrate layer, on the surface of the substrate layer, surface on which said powdery sliding layer is formed.