TECHNOLOGICAL CURRENT SOURCE FOR MICRO-ARC OXIDIZING OF METALS AND ALLOYS

摘要

The utility model is used to obtain insulating oxide coatings with increased resistance to heat, corrosion and wear resistance, as well as decorative coatings used in mechanical engineering, medicine, aerospace, chemical, electronic and other industries. The utility model seeks to empower technology micro-arc oxidation of metals and alloys due to independent regulation of output parameters of the anodic and cathodic current and technological current voltage source. Said technical result is achieved in that the process current source for micro-arc oxidation of metals and alloys, comprising a power source with two terminals, an electrolyte bath, current supply to oxidizable components and two batteries of electric capacitors, is provided with four thyristors, a pulse-phase control system thyristors and the block cycling modes, wherein the first electrode battery electric capacitors connected to the first power supply terminal, the second plate of the first battery RE ble capacitors is connected to the cathode first and the anode of the second thyristor, and the second plate of the second battery electrical capacitors - the cathode of the third and the anode of a fourth thyristor, the anode of the first and the cathode of the fourth thyristor are connected to a second power supply terminal and the electrolyte bath housing, and the cathode of the second and the anode of the third thyristors - with current lead for the oxidizable components, the control electrodes of the thyristors connected to the outputs of the system of pulse-phase control thyristors, and its inputs - the outputs is cycled block Bani modes. 1 yl.