A wear plate and ring for concreate pump car and a method thereof

摘要

Disclosed is a sliding member assembly for a concrete pump car, which is easy to manufacture, has excellent wear resistance, and is easily assembled.;According to the present invention;An internal friction ring composed of a fastening member and an integrated first friction sliding member joined by the fastening member and the joining member;;An integrated second friction sliding member heat-treated in the carburizing atmosphere; And;Providing a friction sliding member assembly for a concrete pump car consisting of a support plate to which the inner friction ring and the second friction sliding member is detachably fixed, and also manufacturing a supporting plate from low carbon steel having a carbon concentration of 0.35% or less, which is carbon steel for general structure. ;;The fastening member is made of carbon steel or alloy cast steel that hardens when carburizing or quenching, and the first friction sliding member is made of tool steel, bearing steel, or martensitic stainless steel that hardens when carburizing or quenching to satisfy hardness of HV550 or higher. Making;;Manufacturing an internal friction ring by bonding the fastening member and the first friction sliding member to a joining member;;Manufacturing a second friction sliding member in the same manner as manufacturing the first friction sliding member; And;The object of the present invention is achieved by providing a method of manufacturing a friction sliding member assembly for a concrete pump car comprising the step of assembling and fixing the support plate and the inner friction ring and the second friction sliding member to the fixed bolt.