The main part of the Butt Welding Machine is a step-down transformer, the secondary coil is welded at both ends of the workpiece and the electrode, the work of igniting the arc, the arc in the high temperature welding electrode welded to the gap in the workpiece. As the welding transformer core has its own characteristics, it has a sharp drop in the characteristics of the voltage, that is, after the electrode ignition voltage drop; in the electrode is shortened bonding, the voltage is a sharp decline. Nextintroduce the principle of Butt Welding Machine and the advantages of welding machine.
Principle of butt welding
The use of the welding machine is actually when the workpiece contacts the resistance will produce heat, so as to achieve the purpose of heating the workpiece, making the metal surface melting, and welds in the workpiece counterparts solid phase metal plastic degeneration under the conditions of the formation of a common Grain, weld organization, the composition close to the base metal, so it is easier to get strong and other plastic welded joints. In the flash process, with the discharge of air, reduce the metal oxidation of the self-protection function, making the weld inclusions, not penetration and other defects less.
The advantages of Butt Welding Machine
1, the welding efficiency is high.As the workpiece is pressed with the times the force cylinder, the reaction speed was significantly faster than the hydraulic cylinder.
2, automatic centering function to ensure that both ends of the pipe before the end of the two ends of the same and the same, so as to ensure the same amount of burning at both ends.
The quality requirements of the butt joint are reflected in the joint should have a certain strength and plasticity, especially for the latter should give more attention. In general, due to the characteristics of the process itself, the resistance of the butt joint quality is poor, can not be directly used for important structure. The flash butt welding, in the appropriate process conditions, you can get almost the same quality properties such as base metal joints. And when the fixture is designed correctly, the accuracy of the formation of the welded parts can be within the range specified by the MIL-W-6873 standard.
The main part of the Butt Welding Machine is a step-down transformer, the secondary coil is welded at both ends of the workpiece and the electrode, the work of igniting the arc, the arc in the high temperature welding electrode welded to the gap in the workpiece. As the welding transformer core has its own characteristics, it has a sharp drop in the characteristics of the voltage, that is, after the electrode ignition voltage drop; in the electrode is shortened bonding, the voltage is a sharp decline. introduce the principle of Butt Welding Machine and the advantages of welding machine.
Principle of butt welding
The use of the welding machine is actually when the workpiece contacts the resistance will produce heat, so as to achieve the purpose of heating the workpiece, making the metal surface melting, and welds in the workpiece counterparts solid phase metal plastic degeneration under the conditions of the formation of a common Grain, weld organization, the composition close to the base metal, so it is easier to get strong and other plastic welded joints. In the flash process, with the discharge of air, reduce the metal oxidation of the self-protection function, making the weld inclusions, not penetration and other defects less.
The advantages of Butt Welding Machine
1, the welding efficiency is high.As the workpiece is pressed with the times the force cylinder, the reaction speed was significantly faster than the hydraulic cylinder.
2, automatic centering function to ensure that both ends of the pipe before the end of the two ends of the same and the same, so as to ensure the same amount of burning at both ends.
3, easy operation and maintenance services. Because there is no hydraulic station, the product of the debugging point, the point of failure to be less, there will be no oil and other phenomena.
4, the requirements of the grid is low. Only 250KVA grid can be met.
5, the welding precision is high.Using programmable controller PLC and import step to control the flash process, can accurately set the amount of burning and burning speed; through the microcomputer solder mask controller to control the welding current. Control in the ± 0.2mm, to facilitate the subsequent group of pieces of welding.
6, energy-saving. Radiator flash welding machine is used in two 125KVA resistance welding transformer for power, pneumatic compression, upset, no hydraulic station. Compared to other other use of two 315KVA single-phase AC welding transformer And two power 18KVA hydraulic station Butt Welding Machine, UN-250AB Butt Welding Machine can save up to 78%