Method for producing high-temperature resistant composite lining plate through micro-metallurgy

Abstract

The invention discloses a method for producing a high-temperature resistant composite lining plate through micro-metallurgy, which comprises the steps of removing rust, oil stains and scale impurities from the surface of a metal base material, producing metal-base ceramic particle reinforced alloy powder for mixing according to the metal base material and condition requirements, mixing the mixed alloy powder with white emulsion, then uniformly painting the mixed alloy powder on the surface of the metal base material, blacking the alloy powder layer with Chinese ink after drying, drying again, and allowing the metal-base ceramic particle reinforced alloy powder to conduct rapid micro-metallurgy reaction with the metal on the surface of the base material through high-density energy of semiconductor laser beams so as to obtain a 0.2-0.35 mm-thick high-temperature resistant metal ceramic layer that is positioned on the surface of the metal base material and metallurgically bonded with the base material. The high-temperature resistant composite lining plate is low in cost, stable in quality and suitable for large-scale production, requirements of special conditions of on-site high-temperature abrasion can be met, and the service life of the lining plate is extended effectively.

Description

technical field [0001] The invention belongs to the field of mechanical processing technology, and in particular relates to a method for preparing a high-temperature-resistant composite liner by micro-metallurgy. Background technique [0002] With the development of modern industry, there are more and more high-temperature production environments with working temperatures greater than 800° and less than 1200°. Metallurgical blast furnace systems, sintering systems, coke oven systems in coking production, refining and chemical systems in petrochemicals, etc. Liners under such working conditions put forward higher requirements. [0003] The selection of working liner in high temperature environment directly affects the safe operation and production cost of enterprise production. At present, in major domestic iron and steel enterprises, coking enterprises, and petrochemical enterprises, there is a great demand for high-temperature resistant lining plates with working temperatu...

AI Technical Summary

Problems solved by technology

The overall stainless steel liner has high cost, low high-temperature hardness, especially poor high-temperature wear resistance, which leads to low service life of the liner, increases the number of replacements, affects the continuous production of the enterprise, and increases the cost of the enterprise

[0004] In recent years, a lot of research work has been carried out at home and abroad to solve the problems of low life and high cost of high-temperature linings working in high-temperature environments, but they mainly focus on the research of single materials.

Since it is impossible to take into account the performance of a single material in terms of strength, hardness, high temperature resistance, wear resistance and oxidation resistance, it cannot meet the requirements of long-term continuous production under on-site working conditions.

Based on the comprehensive research of existing materials, it is found that it is difficult to achieve high-temperature liners that meet the above requirements only by selecting a single material.