Electric arc spraying treatment method for surface of steel

Abstract

The invention discloses an electric arc spraying treatment method for surfaces of steel. An electric arc body, a grinding device, a workpiece clamping device and an automatic spraying device are included, and the method comprises the following steps of S1, surface pretreatment, S2, electric arc spraying and S3, cooling treatment. The invention relates to the technical field of steel. According to the electric arc spraying treatment method for the surfaces of the steel, the problems that in the construction process of electric arc spraying, a large amount of toxic smoke, aluminum vapor, dust and the like can be generated to damage a respiratory tract system of a worker, in addition, in the construction process, strong ultraviolet and infrared radiation can be generated to cause electric arc burning of the worker, when the spraying angle is 90 degrees, sand grains can be embedded, excessive sand grains are embedded into the surface of a workpiece, the spraying effect of spraying is reduced, in the spraying process, the spraying distance is too small or the moving speed of a spraying gun is too slow relative to the workpiece, local overheating of a coating is caused, and cracks are generated on the surface of the coating due to the stress effect after the coating is cooled are solved.

Description

technical field [0001] The invention relates to the technical field of steel, in particular to a method for treating the surface of steel with arc spraying. Background technique [0002] Steel is a material of a certain shape, size and performance made of steel ingots, billets or steel through pressure processing. Most steel processing is through pressure processing, which causes plastic deformation of the processed steel (billet, ingot, etc.). According to the different processing temperature of steel, it can be divided into cold processing and hot processing. Steel is an essential material for national construction and the realization of the four modernizations. It is widely used and has a variety of varieties. According to the different cross-sectional shapes, steel is generally divided into profiles, Plates, pipes and metal products are divided into four categories, which are divided into heavy rails, light rails, large section steel, medium section steel, small section...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a treatment method for arc spraying on the surface of steel, which solves the problem that arc spraying will produce a large amount of toxic smoke, aluminum vapor, dust, etc. during construction and damage the respiratory system of workers. There will be strong ultraviolet and infrared radiation in the medium, which will cause arc burns. When the spraying angle is 90 degrees, there will be sand embedded in the surface of the workpiece. Small or the moving speed of the spray gun is too slow relative to the workpiece, which will cause local overheating of the coating. When the coating cools down, cracks will occur on the coating surface due to stress

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