Copper base powder metallurgy thrust ring and preparation method thereof

Copper base powder metallurgy thrust ring and preparation method thereof, in particular to the powder metallurgy thrust ring, thrust bearing and other parts of the copper, tin, lead and graphite mixed components used in the marine gear box, and the preparation method thereof. The copper core plate is coated with tin bronze powder as an adhesive layer, and the composite copper base powder metallurgy friction reducing layer on the adhesive layer is used;

Copper based powder metallurgy friction reducing layer consists of tin powder 8 ~ 10%, lead powder 4% to 2, graphite powder 1% and the rest for copper powder. The formula is applied to the following steps: copper plating layer, coating adhesive layer and composite copper base powder metallurgy friction reducing layer, pre sintering, pressing oil groove, re firing, and sintering. A copper based powder metallurgy thrust ring and a preparation method thereof are of low pressure, high strength, low manufacturing cost and high finished product rate.