RK bimetallic composite wear-resistant steel has been widely used in heavy industry for equipment failure workpiece wear our industry provides significant wear protection measures, which greatly improved the life of the equipment, the workpiece, for enterprises to improve production efficiency and reduce made important contributions to the cost of production. RK bimetallic composite wear plate is the use of self-protection automatic open arc welding process, in ordinary steel or stainless steel surfacing composite layer with high hardness, high wear resistance of high alloy wear layer, the wear-resistant steel with dual metal properties, namely high plasticity and toughness of the working layer of high wear resistance and substrate layers, for industrial applications provide a convenient mechanical and welded connections conditions can be achieved reel, welding, plasma cutting, mechanical connections and other processing. Between composite plate wear layer and the substrate layer is completely metallurgically bonded to become one, wear layer uniformity, surface roughness, flatness and the entire plate is quite common carbon steel plate. Wear-resistant layer has a stress relief cracks, the crack is only present in the surfacing of the wear layer, does not extend to the base body, which can greatly reduce the stress relief cracks over Cheng Duiji body welding residual stress and deformation, and thus avoid a reduction in the matrix strength, will not affect the performance of the wear plate. The main components of the wear layer of high-carbon high-chromium alloy, depending on the user's requirements and conditions of use, high-temperature wear plate also contains Mo, W, V, B, Nb, Ti and other alloying elements, wear layer microstructure of eutectic + M7C3 primary carbides or complex carbide can be achieved at room temperature resistance, high wear resistance, high temperature, strong impact, medium impact, low-stress shocks. Depending on the use of wear layer hardness working conditions, wear and hardness level main living: HRC55-58; HRC58-62, HRC62-67. Wear and abrasion due to differences in the cross-plate applications and working conditions, such as the size to withstand stress, shock conditions, the size of the material, hardness, velocity, impact angle, temperature and other factors, abrasion resistant steel plate reflect grindability vary, under normal circumstances, wear the following statistics: broken steel is relatively low: 20-25 times a relatively high manganese steel: 8-12-fold relative to the tool steel: 8-12 times the relatively high chromium cast iron : 1.5-2.5 times