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PATON
ProTIG
DC TIG/MMA
Typical cyclogram of operation of 2-stroke mode (TIG DC/2T)
In modern torches for manual TIG welding, there is a button for control of the
welding process connected to the device. Let us consider the operation of 2-stroke mode.
2-stroke mode:
after pressing the button, it is blown by shielding gas before welding
and a smooth rise in the current to the specified value over T
п
occurs. After releasing the
button, the set current is gradually reduced to the end current over the time Tc, after which
its postblowing with shielding gas occurs.
Typical cyclogram of operation of 4-stroke mode
(TIG DC/4T)
4-stroke mode:
after the first pressing and holding the button, the welding process begins.
It is blown before welding and ignition of the arc occurs on the starting current, the starting
current will be stored as long as the button is pressed. After releasing the button, the
starting current will increase smoothly to the specified value over the time T
п
. After the
repeated pressing of the button and holding it, the set current will go down smoothly to the
Содержание ProTIG-200
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