MECHANICAL CHARACTERISTICS OF POWDERED ALUMINUM BRONZE OBTAINED FROM METALLURGICAL WASTE
Annotatsiya
Currently, the main materials for the manufacture of sliding bearings are cast bronze and powder bronze, where the main alloying element is tin, the graphite content in these alloys is from 2 to 4%. At the same time, sintered bronze alloys, where the main alloying element is aluminum, have an advantage over both cast and sintered tin bronze. The advantage of aluminum bronze is the low cost of aluminum powder compared to tin powder, lower weight of sintered aluminum bronze bearing compared to the tin bronze bearing of the same size. The proposed article presents the results of studies of the mechanical characteristics of powdered aluminum bronze obtained from metallurgical waste with different percentages of aluminum powder and sulfur-containing pyrite additive (FeS2) replacing graphite. The results of studies on the effect of sintering temperature on the hardness and strength of aluminum bronze, as well as the effect of sulfur-containing additive -pyrite (FeS2) on the oil permeability and porosity of aluminum bronze, are presented).