Patent ID: 9138805
Filing Date: 2015-09-22
Classification: B22D,B22F,B62D

Abstract:
1. A method for producing a wear-resistant mechanical face seal ring, comprising: obtaining an uncoated metal ring, comprising: coating an exposed area of the coatable surface with a slurry comprising a fusible, hard metal alloy with at least 60% by weight of iron, cobalt, nickel, or alloys thereof in the form of a finely divided powder, polyvinyl alcohol, a suspension agent, and a deflocculant; and forming a metallurgical bond between the exposed area and the coating slurry to form a metallurgically bonded wear-resistant coating on at least a portion of said coatable surface, wherein the wear-resistant coating comprises a fused hard metal alloy comprising at least 60% by weight iron, cobalt, nickel or alloys thereof, wherein the wear-resistant coating has a Vickers hardness greater than 950 HV, and wherein the wear-resistant coating excludes carbides.