Traditional Culture Encyclopedia - The 24 Solar Terms - Instructions for use of argon arc welding machine 250: 2.5 seconds or 5 seconds is better.
Instructions for use of argon arc welding machine 250: 2.5 seconds or 5 seconds is better.
First of all, explain, what are you asking? 2.5S? With what? What is 5S?
2.5S:? 2.5 seconds, also known as short air delay;
5S? : 5 seconds, also known as long breath;
This is an argon welding machine. Argon diffusion time;
So when the welder is used in DC manual arc welding, it doesn't matter whether it is 2.5S or 5S, because there is no argon output in manual welding.
When the welder is set to argon arc welding output through the panel selector switch, if 5S gas extension is selected, it means that the welder will stop outputting immediately after your finger releases the welding control operation button on the argon arc welding gun, but argon gas can be continuously output for 5 seconds;
Therefore, when argon arc welding is carried out, whether to use long pumping gas or short pumping gas is used;
A look at the welder's habits;
Second, look at the welding environment;
Gas extension has two purposes:
Protect the tungsten needle, gas nozzle and welding torch itself on argon arc welding torch; The heat inside the welding gun and argon nozzle can be properly taken away, and at the same time, the tungsten needle which is still in a high temperature state just after stopping working can be prevented from being damaged by direct contact with air at a high temperature state;
On the other hand, it is generally not recommended that the gas nozzle of the welding gun leave the workpiece immediately after welding is completed; Because the gas nozzle is still blowing argon out at this time; ?
One is to help the surface of the workpiece cool down;
The second is to protect the working face, so that the working face will not immediately contact the air at high temperature and affect the welding quality;
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