Several methods used in stainless steel bottom welding
Posted by Wangkiky Wangkiky over 6 months ago
The stainless steel backing welding is usually made of TIG technology. According to the actual situation of the site, we can use the following four methods for backing welding.
(1) the method of blocking ventilation is adopted on the back side.
(2) the use of soluble paper or the combination of soluble paper and blocking plate for blocking ventilation.
TIG welding with flux cored wire.[url=http://discountsteelsales.com/steel-supply/2063.html]Hot selling large diameter seamless thin wall steel pipe from china[/url]
(4) using backing wire (self shielded welding wire) for backing TIG welding.
1. the blocking method is used to block the ventilation protection on the back (i.e. solid core wire +TIG).
When the stainless steel pipe is prefabricated, the weld is usually rotated and welds, and the ventilation is very easy. At this time, the plugging plate is usually used to protect the pipe on both sides of the pipe to protect it. (see chart 1), and the outside is blocked by adhesive.[url=http://discountsteelsales.com/steel-supply/2322.html]304 201 430 thin stainless steel strips 0.05mm thickness BA surface[/url]
When welding, we should adopt the process of early ventilation, lag stop gas, the outer adhesive edge welding edge tear, because the plate is made up of the rubber and white iron, it is not easy to damage. So this welding method can guarantee the inside of the weld full of argon and guarantee its purity, thus effectively guaranteeing the inner metal of the weld seam not to be oxidized. The quality of weld bottom welding.
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