Argon arc welding machine welding torch has been pressed out, wait a few seconds will stop, which does not press the switch will be out of gas? What's the problem?!
This is the after blow function, according to the actual welding needs, you can set different time, the role is to protect the solder joints at the end of the welding. Argon arc welding machine stresses that argon first come and then go.
This is the gas delay time, the length of the delay can be adjusted in advance. And... Aspirated. Function...
Electric welding machine is no problem, this is a standard function of argon arc welding, called lag aspirated, just stop in order to protect the high temperature molten pool during welding, you stop welding torch while power, but the temperature will not weld suddenly drop, if there is no protection, high temperature metal oxide will form pores;So in the welding stop after the protective gas have to a good protective effect to form so as to remind you: also, after soldering, do not immediately put the gun away, until the weld metal cools off again, this time to protect gas or sprayed on the white blow!
