| 摘要 |
A method is provided for applying a wear resistant and/or corrosion resistant hardfacing to an article having an irregular surface. The method comprises providing an article having an irregular surface, supplying a brazing material adapted to come into contact with and coat at least a part of the irregular surface to be coated with a hardfacing material, positioning a sheet of hardfacing material, distributed in a polytetrafluoroethylene fibrous matrix in close proximity to but not in total direct contact with the irregular surface to be coated, encompassing the irregular surface together with the so- positioned brazing and hardfacing material in a pressure responsive flexible housing, applying pressure to the exterior of the housing to cause it to yield and thereby force the sheet of hardfacing material into direct contact with the irregular surface, and subjecting the so-treated article to a temperature sufficient to cause the polytetrafluoroethylene matrix to volatilize and the hardfacing material to form a coherent mass which is bonded to the irregular surface of the article. <IMAGE> |
