Inner wall cladding alloy method for manufacturing hydraulic support balance oil cylinder

Abstract

The invention discloses an inner wall cladding alloy method for manufacturing a hydraulic support balance oil cylinder. The inner wall of the balance oil cylinder is manufactured or repaired by adopting the cladding alloy method. In the cladding process, the welding heat input is controlled by controlling a molten drop transition form. The inner wall cladding alloy is adopted to replace electroplating copper plating, so that the damage of the electroplating copper plating to the environment is reduced, the corrosion resistance is improved, and the cutting machinability is guaranteed. The method has the advantages that the cost is saved, and the repair period is shortened.

Description

technical field [0001] The invention relates to a technology for repairing the inner wall of a hydraulic support balance oil cylinder, in particular to an alloy cladding method for the inner wall of a hydraulic support balance oil cylinder. Background technique [0002] The working environment of the hydraulic balance cylinder is extremely harsh, and the inner hole and corrosion of the oil cylinder have become the norm. The oil cylinder is often repaired and scrapped due to the serious corrosion of the inner hole. There are the following methods in the prior art: [0003] The inner wall is copper-plated. Electroplating is too harmful to the environment and should not be used; [0004] The inner wall is sprayed with ceramics, which has large thermal expansion and is prone to cracking, so it is not suitable for use; [0005] Thermal spraying on the inner wall has high porosity and is prone to rust, so it is not suitable for use; [0006] The use of an overall high-grade allo...

AI Technical Summary

Problems solved by technology

[0003] The inner wall is copper-plated. Electroplating is too harmful to the environment and should not be used;

[0004] The inner wall is sprayed with ceramics, which has large thermal expansion and is prone to cracking, so it is not suitable for use;

[0005] Thermal spraying on the inner wall has high porosity and is prone to rust, so it is not suitable for use;

[0006] The use of overall high-grade alloys requires a large amount of precious or rare metal materials, and the cost is extremely high

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