Seam welding
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It is a stainless steel container without manholes or inspection openings; the final ring weld can be carried out with gussets or without them, using TIG welding for the bottom sealing. Is argon shielding necessary when using TIG welding for the bottom sealing? The weld requires 100% RT.
It is necessary to use a shielding gas; if this is not feasible, self-shielding TIG welding wires can also be used
Without gas shielding or shims, an RT test cannot be passed; no need for further explanation
Whether protection is provided depends on the type of welding wire used. . Why is it necessary to protect wire with a flux core? . It’s solid, so it definitely needs to be protected
If you use stainless steel flux-cored wire, there’s no need for protection on the back side
There are still no manufacturers in China that can produce stainless steel cored wires with stable quality.
Since your container has neither a manhole nor a handhole, its volume can’t be very large; therefore, it’s entirely possible to fill it with argon. Since RT is to be used, argon shielding must be applied to ensure that the flaw detection meets the requirements. No worries, charge it.
Thank you so much to all my friends for their help!
A bottle of argon costs around 1,500 yuan, which is quite expensive!