Process for manufacturing bimetal compound casting liner plate

Abstract

The invention puts cold material in the lower part of casting section, then pours medium carbon low-alloy bainite abrasion resistant liquid metal in to liner; pours high carbon low-alloy bainite abrasion resistant liquid into work layer to cast liner plate; cleaning casting element and quenching at constant temperature, to form the work surface as high-rigid high carbon low-alloy bainite abrasion resistant layer, liner as high-flexibility medim carbon low-alloy bainite abrasion resistant steel. The invention has low cost and long service life.

Description

Technical field [0001] The invention relates to a production process method of a bimetallic composite casting liner, in particular to a bimetallic composite liner cast by a double casting process. Background technique: [0002] Ball mills used in industries such as electric power, building materials, and metallurgy consume a large amount of wearing parts such as grinding balls and liners. During the grinding process, there is relative sliding and rolling between the grinding ball and the liner. In addition to being subjected to repeated impacts, cutting grooves, furrows and extrusion pits are also generated on the surface. The higher the hardness of the material, the worse the crushability, and the more severe the chiseling and extrusion. The larger the diameter of the ball mill cylinder, the greater the impact on the liner. Therefore, the liner is mainly subject to high-stress grinding and impact, which is plastic deformation and abrasive wear. Therefore, it is required ...

AI Technical Summary

Problems solved by technology

At present, the materials used for ball mill liners are mainly high manganese steel, alloy cast iron, low alloy steel, etc. It is often difficult for a single material to meet the requirements of working conditions with a wide stress range.

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