Flexible bilayered sheet, one layer of which contains abrasive particles in a volatilizable organic binder and the other layer of which contains alloy particles in a volatilizable binder, method for producing same and coating produced by heating same

摘要

A flexible sheet of a top layer of nickel brazing alloy particles overcast on a tapecast base layer of tungsten carbide particles, the brazing alloy particles and carbide particles each dispersed in and supported by an organic binder matrix, when placed on a substrate dewaxed and heated to about 1100 DEG C., forms a braze infiltrated hardfacing coating of tungsten carbide particles in a braze alloy matrix, which coating is metallurgically bonded to and enhances the hardness and wear resistance of the coated substrate.