SINTERED ALLOY AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a sintered alloy superior in corrosion resistance even in a strongly acidic high-temperature atmosphere. SOLUTION: The sintered alloy made by means of compacting and sintering a plurality of kinds of copper-based raw powder is characterized by 50% or more of the surface of which is covered with carbon. The manufacturing method comprises compacting (S1) and sintering (S2) the plurality of kinds of copper- based raw powder containing carbon to form a sintered alloy, and sizing (S4) the sintered alloy to correct the dimension while covering 50% or more of the surface with the carbon through crushing the carbon on the surface. Thereby, the method provides the sintered alloy having a durability in the strongly acidic high-temperature condition like an exhaust gas atmosphere. COPYRIGHT: (C)2004,JPO