You can purge a glovebox, yes. I would suppose two gas nozzles, one on each
side, would be a little tricky, but not impossible.
"California is the breakfast state: fruits, nuts and flakes."
You can easily make a glove-box or glove-bag, or for small parts you
can make up gas jets to protect a small area.
Tubes can be purged from the inside by flooding argon down the tube.
I made a large acrylic glove box last year, but I have since had a
Make an acrylic box big enough for your pieces with glove holes in one
Leave the top off.
Make a visqueen plastic bag that fits inside the tank and tape it
around the top edges of the tank.
You have to have some holes in the box for the torch hoses, and argon
Have one hole big enough to connect a small shopvac.
Turn on the shopvac to suck out all the air and make the bag conform to
the inside of the tank.
Now close off that hole and flood in the argon.
Leave a small hole at the top of the bag to allow gases to escape.
Argon is heavier than air.
As the box and bag inflate the air will leak out the top.
Once the bag is completely inflated above the box you have a pretty
pure argon atmosphere, because it had very little air in it to start
If you have a fixed rigid box you have to flow argon through it for a
while to make sure you have gotten all the air out.
It depends greatly on the configuration of the part. It is possible in
to just use the TIG torch, and set up some temporary dams to contain the
A plate against the back of a butt weld is one way to do it. Sometimes
backup plates have holes or channels that are connected to the Argon
For straight-line welds, the heat affected zone can be kept quite small
TIG techniques. There are other configurations where some kind of box
It also depends on whether this is aerospace or jewelry, of course!
But, be careful,
as you could easily start a metal fire with Titanium. If you do, the
extinguisher is in your hand already, the torch! Hit the fire with pure
sure can't burn in that. But, if the gas shielding is really bad, like
a breeze blowing the
Argon away, you have a problem.