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MF series medium frequency inverter DC resistance welding machine
Main features of equipment
The 1. is to rely on high temperature resistance welding welding current through the workpiece and workpiece itself due to resistance fusion welding, so it can improve and change by adjusting the welding current frequency is more optimized, better welding process control, so as to improve the quality of welding products.
This is the principle developed to produce frequency welder based on ordinary AC welder frequency is 50HZ or 60HZ, and if the welding frequency is 1000HZ, the time control precision is high, the power factor of 98%, without eddy current electromagnetic induction interference, the welding quality is also improved a lot.
2. but not the current optimal value are all 1000HZ welding workpiece, some larger welding frequency, others need less, our company on the basis of this research the performance of welding current adjustable frequency variable excellent VF series inverter welder. The principle is that the welding frequency can be adjusted by adding "IGBT" pulse width adjustable "welding controller" and "output welding transformer" with adjustable output voltage V and the number of transformer turns N.
3. however, these two kinds of welding are not according to the subtle changes of workpiece automatically adjust the size of welding current, in order to meet the automotive, aircraft and other high-end products to the higher demand of the welding quality, our company is based on the above two kinds of welding machine on the installation of a frequency adaptive dynamic resistance principle control system",
This system is based on the constant current mode control technology, according to the thickness of workpiece, workpiece surface dirt and corrosion degree, shunt operation personnel individual differences and other factors and the subtle changes of the joints, automatically adjust the welding current of each solder joint, to ensure the consistency of the welding quality and effect.
4. frequency power supply and inverter are powered by three-phase power, instead of the traditional AC welder two-phase power supply, will not cause the fluctuation of power grid, and its fluctuation, suddenly lifting voltage, strong adaptability. The current output is more accurate, more stable, more energy efficient and more efficient.
5., especially suitable for welding high conductivity aluminum, copper materials, relatively thick workpieces, automobiles, space shuttles, other high-end products and welding industry