The invention discloses a bimetallic wear-resisting lining plate and a preparation method thereof and belongs to the technical field of
metal material
casting. The bimetallic wear-resisting lining plate comprises a matrix layer and a wear-resisting layer, wherein the wear-resisting layer is provided with more than two T-type projections inlaid into the matrix layer, the height ratio of every T-type projection to the wear-resisting layer is 1:1.2-1:2, the height ratio of the wear-resisting layer to the matrix layer is 1:1-1:3, the
width ratio of every T-type projection to the lining plate is 1:8-1:15, the wear-resisting layer and the T-type projections are made of medium-carbon low-
alloy silicon-
manganese steel, the matrix layer is made of low-
alloy carbon steel, and the bimetallic wear-resisting lining plate is prepared through compounding,
smelting,
casting, annealing and isothermal
quenching. The bimetallic wear-resisting lining plate and the preparation method thereof have the advantages that through adoption of reasonable structural design and a layered
casting technology, combination of a composite layer at an interface is closer, and the composite layer is less prone to separation; produced through the
thermal treatment technology of simple isothermal
quenching, the bimetallic wear-resisting lining plate is highly resistant to wear, high in tenacity, simple in preparation technology and convenient to produce, and production cost can be reduced effectively.