Coal trough poor working environment, easy to wear. Bimetal wear-resistant composite liner for the feeder tank liner can effectively improve the life of the feeder tank. Bimetallic wear-resistant composite liner is composed of ordinary substrate and anti-wear layer of two parts, wear-resistant layer and the substrate is completely metallurgical bond, do not have to worry about wear-resistant layer off the issue. Anti-wear layer generally accounts for 1 / 3-2 / 3 of the total thickness. Wear-resistant layer compound process, so that the anti-wear layer is cracked, and the crack can not extend into the matrix, otherwise it will affect the bearing capacity of the substrate. Anti-wear layer and the matrix can not exist between the cracks, or wear-resistant layer in the deformation process or in the use of off, can not play the role of anti-wear. Cracking cracks bimetallic wear-resistant composite liner board deformation possible.