The welding of resistance welder is an energy-consuming and heavy process

Resistance welding machine is a kind of welding equipment that uses resistance heating principle for welding. Resistance welding machines can be divided into different types according to different uses and requirements. From the welding method classification, spot welding machine, seam welding machine, convex welding machine and butt welding machine, etc. : from the pressure form of the electrode classification has lever type, electric CAM type, pneumatic type, hydraulic type and gas, hydraulic combined type and so on; From the type of welding current classification of resistance welding machine, there are single-phase industrial frequency welding machine, secondary rectifier welding machine, three-phase low-frequency welding machine, capacitor energy storage welding machine and inverter power welding machine. The resistance welding machine is mainly composed of the main circuit part, the pressure transmission part and the control part. The welding methods of the resistance welding machine mainly include spot welding, seam welding, projection welding and butt welding.

Spot welding is a resistance welding method in which the welded part is assembled into a lap joint and pressed between two columnar electrodes, and the base metal is melted by resistance heat to form a welding spot. Spot welding is mainly used for sheet welding. Spot welding process: prepress to ensure good contact with the workpiece. Electricity is applied to form a molten core and a plastic ring at the weld. Power off forging, so that the core in the pressure continues to cool the junction, resistance welding machine its advantages are 1. High welding efficiency, fast welding speed; 2. Without the use of flux sheet, the tool head is welded directly with the matrix; 3. Beautiful welding, small scar; 4. Save energy.

The welding of resistance welding machine has always been an energy-consuming and heavy process, which directly affects the efficiency and profits of enterprises, as well as the enthusiasm of workers. A large amount of energy use makes part of the cost consumed in electricity, the defects of the existing process in the mass production of this process has a huge room for improvement, so we will be the medium frequency inverter technology and new black graphite electrode applied to this production process, the results not only make a single soft connection of the production cost is greatly reduced, but also greatly improved efficiency. The rise of new energy vehicles has promoted the sales of this welding machine, each new energy vehicle battery box requires several copper and nickel pieces of good electrical conductivity metal material combination of soft connection, its welding quality will be directly related to the battery and electric drive system, so this welding equipment currently has a high technical content.