Wear-resistant plate is a plate product specially designed for large-area wear condition.which is made of ordinary low carbon steel or low alloy steel surface with good toughness and plasticity by surfacing and welding the wear-resistant layer with high hardness and good wear resistance of a certain thickness.
Wear-resisting plate is composed of low carbon steel plate and alloy wear-resisting layer.When working, the matrix provides comprehensive properties such as strength, toughness and plasticity of resisting external forces, and the wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions.
Between the wear-resistant plate and the substrate is the metallurgical combination.Through special equipment and automatic welding process, the high-hardness self-protecting alloy welding wire is evenly welded on the substrate.Composite layer number of one layer to two layers or even multiple layers, composite process due to the alloy shrinkage ratio is different, uniform transverse crack, which is a significant feature of wear-resistant steel.
The wear-resistant layer is mainly composed of chromium alloy, while manganese, molybdenum, niobium, nickel and other alloy components are added. Carbide in the metallographic structure is distributed in the form of fiber, and the fiber direction is perpendicular to the surface.The microhardness of carbide can reach above hv1700-2000.and the surface hardness can reach hrc58-62.Carbide alloy has a strong stability at high temperature.maintain a high hardness, but also has a good oxidation resistance.within 500℃ completely normal use.
Wear-resistant plate has high wear resistance and good impact performance is good, can be cutting, bending, welding, etc., can adopt welding, plug welding, bolt connection way to connect with other structures, such as the scene of the maintenance process possesses the characteristics of time saving, convenient and wear-resistant plate is widely used in metallurgy, coal, cement, power, glass, mining, building materials, brick and tile industry, compared with other materials, has a high cost performance, has been favored by more and more industries and factories.