(1)Argon tungsten-arc welding
Stainless steel welded pipe requires deep penetration welding, no oxide inclusions, heat affected zone as small as possible, tungsten inert gas protection argon arc welding has good adaptability, high welding quality, good penetration performance, its products are in chemical industry, Industrial applications such as nuclear industry and food are widely used. The low welding speed is the inadequacy of argon arc welding. In order to improve the welding speed, various methods have been developed in foreign countries.
Multi-torch argon arc welding is suitable for the welding of austenitic and ferritic stainless steel pipes.
(2)High frequency welding
High-frequency welding has been used in carbon steel welded pipe production for more than 40 years, but it is a relatively new technology for welding stainless steel pipes. The economics of high-frequency welding production make its products more widely used in the fields of architectural decoration, household appliances and mechanical structures. Because the high-frequency welding speed is fast, it is difficult to remove the burrs in the welded pipe. This is one of the reasons why the high-frequency welding stainless steel pipe is still not accepted by the chemical industry and the nuclear industry.
Post time: Mar-15-2019