Powder for laser remanufacturing of high-temperature furnace roller and repair process

Abstract

The invention relates to powder for laser remanufacturing of a high-temperature furnace roller and a repair process. The powder for the laser remanufacturing of the high-temperature furnace roller is characterized by comprising a base material, namely CoCrAl alloy powder and metal oxide powder, wherein the CoCrAl alloy powder comprises the following chemical components in percentage by weight: 15.0 to 28.0 percent of chromium (Cr), 3.0 to 10.0 percent of aluminium (Al), 0.1 to 1.5 percent of yttrium (Y) and the balance of cobalt (Co); the metal oxide powder accounts for less than or equal to 40.0 percent of the total weight of the powder for laser remanufacturing; and metal oxides added into the powder comprise 0.0 to 1.0 percent of yttrium oxide (Y2O3) and the balance of aluminium oxide (Al2O3) or only comprises Al2O3. Due to a laser remanufacturing laser irradiation process, the high-temperature furnace rollers which are scraped or have potential quality hazard are repaired and utilized by the remanufacturing technique.

Description

technical field [0001] The invention relates to a powder material for laser remanufacturing of high-temperature furnace rolls in the metallurgical industry and a repair technology, and belongs to the technical field of metal material surface engineering. Background technique [0002] In metallurgical enterprises, a large number of mechanical equipment operate under high temperature, high speed, heavy load and corrosive environment. Therefore, the quality and service life of some key parts of these equipment directly affect the productivity, production cost and product quality of the enterprise. From the perspective of the failure mode of mechanical parts, fatigue damage, corrosion damage and wear damage are the main types, while corrosion and wear in metallurgical machinery and equipment almost include all types of wear and corrosion. Usually, the principle of material selection in the design of mechanical parts is mainly to ensure the strength, stiffness, and fatigue resist...

AI Technical Summary

Problems solved by technology

To maintain sustained and rapid economic growth, the increase in resource consumption is unavoidable, but if we continue to follow the traditional development model, it will be unsustainable to achieve industrial modernization with a large amount of resource consumption

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