SINTERED SLIDING MATERIAL EXCELLENT CORROSION RESISTANCE, HEAT RESISTANCE AND ABRASION RESISTANCE AND MANUFACTURING METHOD THEREFOR

• Main Authors: ISHII YOSHINARI, TAKEZOE SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 21.04.2016
• Subjects: ALLOYS; CASTING; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

PROBLEM TO BE SOLVED: To provide a sintered sliding material excellent in corrosion resistance, heat resistance and abrasion resistance and a manufacturing method therefor.SOLUTION: The invention provides a sintered sliding material having a composition consisting of, by mass%, Ni:36 to 86%, Sn:1 to 11%, P:0.05 to 1.0%, C:1 to 9% and the balance Cu with inevitable impurities and a structure consisting of a sintered body of a plurality of alloy particles where Sn, P and C are contained in a Ni-Cu alloy or a Cu-Ni alloy. In the invention, pores are dispersion formed in a grain boundary of a plurality of alloy particles, and the amount of inevitable impurities contained in a matrix consisted by the alloy particles is, by mass%, C:0.6% or less and Si:0.15% or less.SELECTED DRAWING: Figure 2 【課題】本発明は耐食性、耐熱性、耐摩耗性に優れた焼結摺動材及びその製造方法の提供を課題とする。【解決手段】本発明は、質量％でＮｉ：３６〜８６％、Ｓｎ：１〜１１％、Ｐ：０．０５〜１．０％、Ｃ：１〜９％を含有し、残部Ｃｕおよび不可避不純物からなる組成を有し、Ｎｉ−Ｃｕ合金またはＣｕ−Ｎｉ合金にＳｎとＰとＣが含有された複数の合金粒の焼結体からなり、前記複数の合金粒の粒界に気孔が分散形成された組織を有し、前記合金粒が構成するマトリックスに含まれる不可避不純物の量が、質量％でＣ：０．６％以下、Ｓｉ：０．１５％以下であることを特徴とする。【選択図】図２