Check out the Stainless Steel Pipe Welding
Stainless-steel pipe welding is gravy work. Always has been. Always will be.
If you can do it and take action well, you're the man and you will never go hungry. Nonetheless it takes some awareness of detail to do it right.
What is important that separates the lads in the boys or can i say, the real welders in the rod burners will be the willingness to follow procedures for welding metal. Procedures like waiting for the pipe for cooling among passes, keeping the hot tip of the rod shielded with argon, snipping the tip of the tig welding rod if this gets crapped up, keeping your tungsten sharp.
One of many procedures After all is PURGE. Metal absolutely should be purged with argon gas to avoid sugaring. Sugaring can be called granulation but it's severe oxidation no matter what you think of it as.
You cannot even get away with tack welding lacking any argon purge that shield the rear side or inside the pipe. How do you do it? How would you protect the rear affiliate with argon?
Usually to control your emotions with aluminum duct tape. The ends of your stainless-steel pipe are taped shut and the whole inside is purged with argon gas. Perhaps the opening within the pipe joint is taped to ensure argon can fill the entire pipe and push out any oxygen. The tape is peeled back just enough to acquire a tack when the pipe is purge enough.
What exactly is enough? Inside your tell without a doubt is by using an oxygen analyzer. A bic lighter will not have the desired effect. Even 2% oxygen content will fly out a bic lighter. And 2% oxygen will lead to a black root pass.
There are several other down and dirty solutions to check the purge but an oxygen analyzer could be the sure way.
Here are some tips that will assist you get a better purge about the stainless steel pipe you weld.
Make certain there's no water within the pipe...not even a drop. One drop water will throw a monkey wrench within your purging until it evaporates. Remember precisely what is in water? Hydrogen and oxygen.
Poke a vent hole within the uppermost placed you will get. Consider argon just as if it had been water. Because it is heavier than air, it is going to fill up any space like water, displacing air as it fills every nook and cranny.
More purge gas flow isn't necessarily better. An increased and turbulent flow of argon will not necessarily purge a pipe quicker when compared to a lower flow rate. And a diffuser for the end of the end of one's argon hose usually enables you to make use of a higher flow rate. A homemade diffuser can be made by incorporating metal wool , some perforated stainless sheet, along with a amount of sheet metal.
As soon as you verify a fantastic purge, you are ready to tack. Peel the tape back sufficient to tack and let cool a bit and re tape. Then tack again 180 degrees apart. Continue until all tacks have established yourself.
For details about bang gia ong thep luon day dien go to see our webpage.