Composite wear-resistant liner, wear-resistant alloy for making it and method for making it

Abstract

The invention discloses a composite wear-resistant lining board. The invention also discloses a wear-resistant alloy for manufacturing the composite wear-resistant lining board and a method for manufacturing the composite wear-resistant lining board. The composite wear-resistant lining board is composed of a wear-resistant layer It is composited with the base layer, and the wear-resistant alloy used in the wear-resistant layer is mixed with Cr, C, Si, Mn, S, P, Mo, Ni, Cu, Re and Fe, and the manufacture of the composite wear-resistant liner The method is mainly that the materials of the wear-resistant layer and the base layer are smelted in separate furnaces, and then cast into shape. The composite wear-resistant plate with this structure has good wear resistance, and the composite wear-resistant lining plate manufactured by this method has a high degree of adhesion between the composite layers. , greatly improving the service life of the composite wear-resistant lining.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a composite wear-resistant lining board. The invention also relates to a wear-resistant alloy for manufacturing the composite wear-resistant lining board and a method for manufacturing the composite wear-resistant lining board. Background technique [0002] Wear-resistant linings refer to various wear-resistant linings processed from wear-resistant steel plates through cutting, coiling deformation, punching and welding. Wear-resistant liners are widely used in many fields, especially for crushing iron ore, aluminum ore, gold ore, low-quality coal, anthracite and other difficult-to-grind materials, which require high wear resistance and impact resistance of wear-resistant liners , the generally used liner is made of a single metal material, which has good toughness and poor wear resistance. [0003] In order to enhance the wear resistance of the liner, a bimetallic composite wea...

AI Technical Summary

Problems solved by technology

However, the metal selection and composite form of the bimetallic composite wear-resistant lining are different, and its performance is also very different.

[0004] Most of the existing bimetallic composite wear-resistant linings use welding or bonding to fix the wear-resistant material on the substrate. This method of fixing the wear-resistant material by welding or bonding, due to the low bonding strength and the There are gaps and other defects between the grinding materials, which may easily cause the wear-resistant materials to fall off, seriously affecting their service life

If the traditional casting process is used to combine the two, because the physical properties of the wear-resistant material are generally different from those of the matrix material, after the matrix material is melted, the wear-resistant material has a higher melting point and a lower density. It is the phenomenon of floating on the top surface of the molten base material, so the existing casting process cannot combine the two evenly

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