Roller surface laser strengthened coating powder material of roller type crusher

Abstract

The invention relates to a roller surface laser strengthened coating powder material of a roller type crusher, which is characterized by comprising the following components: 0.6-1.2% of C, 11.0-18.0% of Mn, 12.0-18.0% of Cr, 3.0-5.0% of Ni, 4.0-6.0% of W, 0.6-1.4% of Si, 0.06-0.12% of Zr, 0.04-0.08% of Ce, and the balance of Fe. According to the roller surface laser strengthened coating powder material of the roller type crusher disclosed by the invention, an iron-based high-chromium high-manganese alloy powder material, which is lower in melting point and higher in hardness, contains a WC strengthening phase and is applied to laser cladding, is formed by carrying out alloy matrix strengthening by adding Cr, W, Ni and Si and carrying out matrix grain refinement and inter-crystalline strengthening by adding the element Zr and the rare earth microelement Ce on the basis of a high-manganese steel alloy composition; therefore, the impact resistance and the abrasion resistance of the roller surface are greatly increased; and the roller frequent replacing problem of the roller type crusher because of the reduced service life of a roller resulted from abraded abrasive particles on the roller surface is solved.

Description

technical field [0001] The invention relates to an alloy powder material suitable for laser cladding, in particular to a high-chromium-high-manganese alloy powder coating for laser cladding with high hardness, impact resistance, abrasive wear resistance and superior cladding performance Materials, belonging to the C23C24 / 10(2006.01) I technical field in the International Patent Classification. Background technique [0002] The domestic market demand for refractory materials is increasing year by year. In 2009, the sales revenue reached 150 billion yuan, and the annual growth rate is 20-30%. Among them, brown corundum, bauxite and silicon carbide powders account for a relatively large proportion of the market demand. The production market of brown corundum powder has more than 250 smelting factories in Henan alone. Together with several major domestic production provinces such as Guizhou, Guangxi and Shanxi, it can produce more than 5 million tons per year; the production ma...

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Problems solved by technology

[0014] Although the alloy powders for laser cladding given by the above technical solutions can achieve certain technical effects in repairing specific equipment parts, they cannot satisfy and be applicable to other specific substrates such as powders due to their own process characteristics. The crushing roller of the body crusher, the process requirements of laser cladding