Alloy material with wear resistance and high-temperature erosion resistance, surface treatment method for mold copper plate and mold copper plate

Abstract

The invention discloses an alloy material with wear resistance and high-temperature erosion resistance. The alloy material comprises nickel, carbon, cobalt, boron, silicon, phosphorus, tungsten, beryllium, copper and other substances. Meanwhile, the invention further discloses a surface treatment method for a mold copper plate and the mold copper plate. The surface treatment method for the mold copper plate includes the following steps: 1) polishing, 2) cleaning, and 3) laser 3D printing, and further includes a cooling step. The surface of the mold copper plate is provided with an alloy material layer with wear resistance and high-temperature erosion resistance, and the thickness of the alloy material layer is 0.1-2.5 mm. The mold copper plate prepared by the surface treatment method for the mold copper plate by using the alloy material with wear resistance and high-temperature erosion resistance has higher hardness, a smaller average friction coefficient, better wear resistance, higher high-temperature erosion performance and higher density and tensile performance.

Description

technical field [0001] The invention relates to a metal surface treatment process, in particular to a wear-resistant and high-temperature corrosion-resistant alloy material, a surface treatment method for a crystallizer copper plate, and a crystallizer copper plate. Background technique [0002] In the steelmaking production in the field of metallurgy, the mold is the core equipment of the continuous casting machine. Liquid steel flows through a certain length of the mold and exchanges heat with the mold copper plate with excellent heat transfer performance. When leaving the mold, the molten steel has already A liquid core shell with a certain shape, strength and thickness is formed. Therefore, the surface quality of the mold copper plate of the continuous casting machine directly affects the surface quality of the continuous casting slab, the drawing speed of the continuous casting machine and the continuous casting operation rate and other indicators. The wear resistance ...

AI Technical Summary

Problems solved by technology

Surface modification by electroplating, electroless plating, composite plating and thermal spraying is mostly mechanically bonded to the substrate, with poor bonding strength and poor effect

Although the modification of the surface of the copper plate by laser cladding technology can overcome the above shortcomings, the copper plate itself has good thermal conductivity, small specific heat capacity, poor wetting performance, and a hard oxide film on the surface, which has a large reflectivity to the laser spot. This makes it difficult for the heat generated by the laser to stay on the surface, to form a high power density, and to form a molten pool; the performance difference between the copper plate alloy substrate and the coating material system is very large, and the failure problem in the cladding process is more serious. Serious; the toughness in the coating is insufficient, and there are deficiencies such as thermal cracking and stress

The surface performance of the continuous casting machine mold copper plate is not good, which seriously affects its life and production cost

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