A wear -resistant alloy steel lining board and its preparation method

Abstract

The invention relates to the technical field of alloy steel production, in particular to a wear-resisting alloy steel liner plate which comprises the following chemical elements in percentage by weight: 0.3%-0.5% of C, 0.6%-0.8% of P, 0.5%-0.7% of Mn, 1.8%-2.0% of Cr, 0.03%-0.05% of S, 0.1%-0.2% of Mo, 0.8%-1.2% of V, 0.07%-0.1% of W and the balance Fe. Contents of Mn and Mo are lower, so that thecost is reduced; the wear-resisting alloy steel liner plate is subjected to thermal treatment at 950 DEG C, the production control difficulty is lowered and the cost is low; and the wear-resisting alloy steel liner plate provided by the invention is high in strength and impact toughness and low in production control difficulty and cost and facilitates large-scale application and popularization.

Description

technical field [0001] The invention relates to the technical field of alloy steel production, in particular to a wear-resistant alloy steel liner and a preparation method thereof. Background technique [0002] Ball mills are widely used to grind materials in metallurgical mines, cement building materials, electric power, chemical fertilizers, coal, and chemical industries. The liner is the main consumable part of the ball mill, and its quality affects the production rate of the mill. [0003] It also affects the cost of material grinding. [0004] After more than 30 years of development, the production and application of lining materials at home and abroad have experienced from high manganese steel, ordinary white cast iron, nickel hard cast iron, high chromium white cast iron to modified high manganese steel and various quenching and tempering. Stages of development of process for low and medium alloy steels. [0005] Among the several mainstream materials at present, on...