Introduction to the use of medium frequency spot welding machine

The welding transformer of the intermediate frequency spot welding machine has only one secondary loop. The upper and lower electrodes and electrode arms are used to conduct welding current and transmit power. The cooling water path passes through the transformer, electrodes and other parts to avoid heat generation during welding. Cooling water should be passed through first, and then the power switch should be turned on.

We will usually use cooling water to clean the surface of the weldment. After the assembly is accurate, we will send it between the upper and lower electrodes and apply pressure to make them in good contact; the contact surface of the two workpieces will be heated by electricity, causing partial melting to form a nugget. ; Maintain the pressure after the power is turned off, so that the molten nugget cools and solidifies under the pressure to form a solder joint.

Remove the pressure and remove the workpiece. Spot welding process parameters such as welding current, electrode pressure, power-on time and electrode working surface size have a significant impact on welding quality.

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