| abstract |
The object of the present invention is to provide an iron based blended powder for powder metallurgy that can provide a reformable sintered article that has a good sliding property with less variation in the property and a good impact resistance. More specifically, the iron based blended powder for powder metallurgy is formed by blending an atomized alloy iron powder with 0.01% to 1.0% of one or more types of compound powder containing B in terms of B, 1 to 10% of Ni powder, 1 to 6% of Cu powder, 1.3 to 3.0% of graphite powder by weight %, as well as 0.5 to 2.0 parts by weight of a lubricant with respect to 100 parts by weight of the total weight of said powder. The iron based blended powder for powder metallurgy wherein the atomized alloy iron powder comprises, by weight %, 0.03 to 1.00% of Mn, 0.5 to 4.0% of Cr, 0.03 to 0.3% of S, and the residue of Fe and unavoidable impurities, the compound powder containing B and the graphite powder being adhered by means of the lubricant to surfaces of the atomized alloy iron powder. |