METHOD OF MANUFACTURING PARTS FROM BRONZE-STEEL PSEUDOALLOY Russian patent published in 2001 - IPC

FIELD: powder metallurgy; applicable in manufacture of antifriction wear-resistant parts of machine building industry. SUBSTANCE: method includes preparation of mixture including copper particles sizing 30-100 mcm, iron powder particles sizing 60-200 mcm, mainly, rounded in shape, additional introduction of tin particles sizing 5-100 mcm with the following ratio of components, wt. %: tin, 2-5; graphite, 0-2; iron, 30-60; copper, the balance. Mixture is subjected to pressing, sintering and calibration performed twice and impregnation with oil. EFFECT: simplified technology of parts manufacture and increased their quality. 2 cl, 1 tbl