The Correct Use Of Spot Welding Machine

When welding with a spot welder, the orientation of the electrode rod should be adjusted first, so that when the electrode is just pressed to the weldment, the electrode arms insist on being parallel to each other. The selection of the current conditioning switch stage of the spot welder can be selected according to the thickness and raw materials of the weldment. After the power is turned on, the power indicator should be on. The pressure of the electrode can be adjusted by adjusting the tension spring nut and changing its tightness.

After the spot welder completes the above adjustments, the cooling water can be turned on before the power is turned on to prepare for welding. The procedure of the welding process: the welding piece is placed between the two electrodes, step on the foot pedal, and the upper electrode and the welding piece are touched and pressurized. When the foot pedal is continuously depressed, the power contact switch is turned on, so the transformer starts to work secondary The circuit is energized to heat the weldment. When welding must release the pedal after a certain time, the electrode rises, and the power of the spring is used to intercept the power supply and then restore the original state. The single-point welding process is completed.

Spot welding machine welding preparation and installation: before welding of steel weldments, all dirt, oil, scale and rust must be removed. For hot rolled steel, it is best to remove the oxide scale by pickling, sandblasting or using a grinding wheel. . Although unfinished weldments can be spot welded, the service life of the electrodes is seriously reduced, and the output power and quality of spot welding are reduced together. Regarding thin-coated medium and low carbon steel, it can be directly welded.

Spot welding machine welding time: When welding low-carbon steel, this welding machine can use the strong standard welding method (instantaneous energization) or the weak standard welding method (long-term energization). Strong mass welding method should be used when mass production, it can improve production power, reduce electricity consumption and reduce workpiece deformation.

Spot welding machine welding current: The welding current is determined by the size and thickness of the weldment and the condition of touching the appearance. Generally, the higher the metal conductivity, the higher the electrode pressure, and the shorter the welding time. The current density required at this moment also increases. Spot welding machine electrode pressure: The intention of the electrode to apply pressure to the weldment is to reduce the touch resistance at the welding point and ensure welding.