The correct use of battery automatic spot welding machine

About the correct use of the battery automatic spot welding machine, I believe many friends are more interested, the following is a small series of science and technology to explain in detail.

1. The position of the electrode rod should be adjusted first when the battery automatic spot welding machine is welded, so that when the electrode is just pressed to the weldment, the electrode arms remain parallel to each other.

2. The setting and selection of current adjustment parameters can be selected according to the thickness and material of weldments. After power on, the power indicator light should be on, and the electrode pressure can be adjusted by changing the compression degree of the spring pressure nut.

3. After the above adjustment is completed, battery automatic spot welding machine can be connected to the cooling water first and then to the power supply for welding. The procedure of the welding process: the weldment is placed between the two electrodes, step on the pedal, and make the upper electrode contact the weldment and pressurize it. When the pedal is continued to be pressed, the power contact switch is turned on, and the transformer starts to work. The secondary circuit is energized to heat the weldment. When the electrode rises when the pedal is released after welding for a certain period of time, the power supply is cut off first and then restored to its original state by the pulling force of the spring, and the single point welding process is over.

4. Preparation and assembly of weldments: All dirt, oil stain, oxide skin and rust shall be removed before welding of steel weldments. For hot rolled steel, it is better to pickle, sand blast or remove oxide skin with grinding wheel. Although the uncleaned weldment can be spot welded, it will seriously reduce the service life of the electrode and reduce the production efficiency and quality of spot welding. For medium and low carbon steel with thin coating, it can be directly welded.