As we all know, in the production of stainless steel tanks, the welding process is a key production process for the production of the kettle body, which is to weld two stainless steel plates into a kettle body. The welding methods of stainless steel tanks are divided into single-sided welding and double-sided welding. There are different opinions about the two welding methods. Some people think that the effect of single-sided welding is actually better than double-sided welding. Some use double-sided welding. The equipment uses double-sided welding because the wall thickness is too large and single-sided welding is not easy to achieve. Some people think that double-sided welding is worse than single-sided welding, and single-sided welding is not as strong and beautiful as double-sided welding. So, what is the difference between single-sided welding and double-sided welding?

1. The deformation of single-sided welding is larger than that of double-sided welding;

2. Single-sided welding, the appearance of the back side weld cannot be effectively controlled, while the double-sided welding mostly has back-side root removal, which can better control the quality of the weld;

3. The center layer of the thick plate has relatively coarse grains, and the strength is slightly lower than the surface of the plate. When the back side of the double-sided welding is welded, it is a tempered bead for the front side, which can better make the blunt edge section (heat affected zone) And the fusion line is the center layer with coarse grains) The metal grain is refined, and at the same time, it can release part of the welding stress of the weld;

4. Thick plates: The use of double-sided grooves for thick plates firstly saves welding materials compared to single-sided grooves. Secondly, the appearance of the weld surface directly affects the stress distribution of the weld.

Therefore, the welding process of stainless steel tanks is an important process in the tank body production line. Whether it is single-sided welding or double-sided welding, it has its characteristics. The appropriate welding process can be selected according to the actual situation, and the appropriate welding process is the guarantee of the quality of the tank equipment.