Hydraulic support surface local damage repairing method

The invention relates to a hydraulic support surface local damage repairing method, and belongs to the technical field of surface treatment. The method comprises the following steps of performing repair welding treatment on a damaged area of a hydraulic support by adopting stainless steel, then removing a surface layer with the thickness of 0.01-0.05 mm in the repair welding area and an undamaged area, performing electroplating treatment, and forming a chromium layer with the thickness not less than that of the removed surface layer on the surface, thereby finishing the repair of the local damage on the surface of the hydraulic support. According to the hydraulic support surface local damage repairing method, the repair welding area and the undamaged area are subjected to overall chromium electroplating, the interface bonding of the chromium layer of the undamaged area and the chromium layer of the repair welding area is improved, the thickness of the chromium layer on the surface of a workpiece is increased,