Patent ID: 7033529

Claim:
A method for making a friction coating on a high-performance plain bearing, comprising: (a) sintering a layer of bronze powder onto a metallic support under a reducing atmosphere using tooling comprising a non-stick and wear-resistant coating; (b) ionically cleaning the sintered bronze layer under vacuum to activate a surface thereof without increasing a roughness of the sintered bronze layer; (c) applying a layer of PTFE fluoroplastic paste filled with molybdenum disulfide to the activated surface and installing into a die the support coated with the sintered bronze layer; (d) passing the metallic support coated with the sintered bronze layer into the die having a non-stick and wear-resistant coating to compress the PTFE fluoroplastic paste into pores of the sintered bronze layer; (e) drying the compressed PTFE fluoroplastic paste; (f) passing the metallic support coated with the sintered bronze layer having the dried PTFE fluoroplastic paste a second time into the die; (g) sintering the dried PTFE fluoroplastic paste under predetermined duration and temperature conditions followed by immersion in water; and (h) passing the metallic support coated with the sintered bronze layer having the dried PTFE fluoroplastic paste a final time into the die to achieve end dimensions of the metallic support coated with the sintered bronze layer.