Wear-resisting lining plate

Abstract

The invention provides a wear-resisting lining plate material which is composed of high-chrome steel, high-manganese steel, a crusher bottom plate and a powder mill bottom plate. The high-chrome steel and the high-manganese steel are manufactured into frustum bodies to be poured into the bottom plates. A crusher adopts the frustum body made of the high-manganese steel to be poured into the crusher bottom plate. A powder mill adopts the frustum body of the high-manganese steel or the high-chrome steel to be poured into the powder mill bottom plate. Different schemes are adopted in the material of a corrosion and wear resisting lining plate according to usage, nature of alloy elements, price, difficulty of a manufacturing method and the service life, the purpose of making the best use of everything is achieved, a corrosion resisting material is adopted in wet milling, combination of the tough bottom plate and a tungsten manganese alloy with good red hardness, and combination of a soft material and a hard material are adopted in the crusher, and the problem that after the lining plate of the crusher is milled flatly, the crushing efficiency is reduced can be avoided.

Description

technical field [0001] The invention belongs to metal materials, in particular to a liner for a crusher or an ore pulverizer. Background technique [0002] Divisional application information: [0003] This application is a divisional application of, [0004] Original application number: 2017110749797; [0005] The name of the original invention: a corrosion-resistant and wear-resistant liner; [0006] Original filing date: November 06, 2017. [0007] At present, the lining plates used in ball mills and Raymond machines are mainly steel plates or high manganese steels. Ball mills are key equipment for crushing materials after they are crushed. They are widely used in cement, silicate products, new building materials, refractory Materials, chemical fertilizers, glass ceramics and other production industries are used for dry or wet grinding of various ores and other grindable materials. The ball mill consists of a feeding part, a discharging part, a rotary part, a reducer, ...

AI Technical Summary

Problems solved by technology

[0009] A variety of wear-resistant linings, such as conveyor linings, coal feeder bottom plates / cyclone separator inverted cones and linings, wear-resistant blades, the wear-resistant life can be increased by more than 10 times than ordinary steel plates, and China consumes mill linings of about 200,000 tons, the crusher liner is about 200,000 tons, worth nearly 2 billion yuan. Therefore, it is of great economic significance to reduce the production cost of the liner material and prolong the service life of the liner material. Patent 201310727251 discloses a durable The preparation method of the grinding liner is as follows: 1. Preparation of casting sand mold; 2. Melting process, using a melting furnace for melting and smelting, so that the molten metal is composed of the following components and their mass percentages: C: 3.0 to 3.2%, Si: 0.3-0.4%, Mn: 0.5-0.7%, Cr: 2-3%, Mo: 2.8-3.1%, Cu: 0.8-1.2%, V: 8-9%, B: 0.002-0.003%, Sn : 0.04 to 0.05%, Te: 0.02 to 0.03%, Ce: 0.01 to 0.02%, Zr: 0.03 to 0.04%, Y: 0.004 to 0.005%, P: 0.01 to 0.02%, S: 0.001 to 0.002%, balance It is Fe and unavoidable impurities, wherein: Cu / Sn=20~24%; 3, casting process; 4, heat treatment, wherein: air quenching treatment is carried out on the vibrating working platform, the components in this technical scheme still need further It is improved to increase its service life, and the alloy content is high, which increases the cost. The actual composition of the wear-resistant material is far away from the eutectic point, the liquid-solid two-phase region is too wide, and it is easy to show the characteristics of mushy solidification and easy to block feeding. Channels are prone to shrinkage and shrinkage. This technical solution needs to be improved. The patent 2007101590010 declared by Anshan Iron and Steel Group Mining Company, the invention and creation name "a bimetallic wear-resistant liner for crushers and its manufacturing method", by viewing Its bimetallic component is actually a combination of high chromium steel and ordinary steel. From the perspective of technical principles, high chromium steel has excellent wear resistance, but it is difficult to resist high impact. Therefore, it is not very good to be used as a crusher liner. In addition, its 13~22% chromium content is also difficult to say its economical value, because the high chromium steel with this content is not economical, high manganese steel is more suitable for high impact occasions, and the grinding effect is better at high temperature OK, but high temperatures also challenge the high temperature resistance of the liner material

Images