Method of applying a wear resistant and/or corrosion...

Details Method of applying a wear resistant and/or corrosion... Method of applying a wear resistant and/or corrosion...

B - Operations, Transporting

05

D

13/22

B05D 7/22 (2006.01) B23K 1/20 (2006.01) B23K 31/02 (2006.01) B23K 35/02 (2006.01) B23K 35/32 (2006.01) C23C 24/10 (2006.01)

Patent

CA 1228455

A METHOD OF APPLYING A WEAR RESISTANT AND/OR CORROSION RESISTANT COATING TO AN ARTICLE HAVING AN IRREGULAR SURFACE Abstract of the Disclosure A method is provided for applying a wear resistant and/or cor- rosion resistant hardfacing to an article having an irregular sur- face. 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 mater- ial, distributed in a polytetrafluoroethylene fibrous matrix in close proximity to but not in total direct contact with the ir- regular 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 ex- terior 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.

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