Process for performing laser cladding on alloy coating with characteristics of wear resistance and heat resistance by hot rolling of seamless steel pipe
A seamless steel pipe, laser cladding technology, applied in the heat-resistant alloy coating process, laser cladding technology to repair metallurgical equipment components, laser cladding wear-resistant field of hot-rolled seamless steel pipe conveyor roller, can solve the problem of conveyor roller stack Welding repair failure, large dilution rate, overheating structure and other problems
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[0035] Example 1.
[0036] The laser cladding wear-resistant and heat-resistant alloy coating process method for hot-rolled seamless steel pipe conveyor roller table includes the following processes.
[0037] (1) Surface pretreatment of hot-rolled seamless steel pipe conveyor rollers.
[0038] Degrease and remove rust on the machined surface of the conveying roller at room temperature, and clean it with alcohol.
[0039] The processing part of the workpiece is inspected by the coloring flaw detection method, and the processing part is required to be free from defects such as cracks, pores, and inclusions.
[0040] (2) Selection and preparation of alloy powder.
[0041] The binder phase alloy powder is selected from the superhard high-speed steel powder alloy powder with excellent high temperature red hardness and good metallurgical compatibility with the matrix. The chemical composition of high-speed steel powder is: C: ≤ 0.03%, Cr: 0-1.0%, Ni: 5-7%, Mo: 6-7.5%, Si: ≤ 0.1%...
Example Embodiment
[0061] Example 2.
[0062] The laser cladding wear-resistant and heat-resistant alloy coating process method for hot-rolled seamless steel pipe conveyor roller table includes the following processes.
[0063] (1) Surface pretreatment of hot-rolled seamless steel pipe conveyor rollers.
[0064] Degrease and remove rust on the machined surface of the conveying roller at room temperature, and clean it with alcohol.
[0065] The processing part of the workpiece is inspected by the coloring flaw detection method, and the processing part is required to be free from defects such as cracks, pores, and inclusions.
[0066] (2) Selection and preparation of alloy powder.
[0067] The binder phase alloy powder is selected from the superhard high-speed steel powder alloy powder with excellent high temperature red hardness and good metallurgical compatibility with the matrix. The chemical composition of high-speed steel powder is: C: ≤ 0.03%, Cr: 0-1.0%, Ni: 5-7%, Mo: 6-7.5%, Si: ≤ 0.1%, W...
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