1. Welding technology is required for the repair here, so the hydraulic piston rod should be preheated in the electric furnace first; the temperature is 380 degrees, and the preheating is about 2 hours.
2. Take out the preheated hydraulic piston rod and place it flat on the welding workbench. Note that the damaged side of the hydraulic piston rod should be placed outward;
3. On the control panel of the ion welding machine, set the required temperature and data, and then start welding. Note that the position of the welding gun should be kept at a position of about 8 mm from the hydraulic piston rod, so as to avoid shaking and other phenomena during welding .
4. Take out the welded hydraulic piston rod with a tool, and put it in an incubator for heat preservation. Do not hold the newly welded hydraulic piston rod with your hands, which is very hot and easy to be burned.
5. Then put the hydraulic piston rod of the incubator into the electric furnace to continue heating, the temperature is about 500 degrees, connect for 1.5 hours, and then let it cool naturally.
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