TRANSPARENT WINDOW SWITCHING DEVICE OF A MASK FOR PULSE ARC WELDING, WHICH USES THE MIXED GAS INCLUDING ARGON GAS OR CARBON DIOXIDE AS SEAL GAS IN THE PULSE ARC WELDING

摘要

PURPOSE: A transparent window switching device of a mask for pulse arc welding is provided to open and close the transparent window of a welding mask by synchronizing with the pulse group for welding.;CONSTITUTION: A transparent window switching device of a mask for the pulse arc welding includes: a pulse generation switch(111) which creates a request signal for the performance of the welding work and is located in a welding handle; a power control unit(112) which supplies the necessary power to a welding machine when the request signal is created from the pulse generation switch; a welding machine controller(113) which establishes the size of the electric current which is provided to the welding handle after sensing the operation state of the power control unit; a pulse signal generation portion(115) which creates the pulse signal using the control signal created in the welding machine controller; a pulse arc power supply part(114) which provides the high tension current signal; and an electronic shutter driving signal generation part(116) which provides the shutter action control signal synchronized with the pulse arc generation point to the electronic shutter.;COPYRIGHT KIPO 2010