3Wang Kezheng, Chen Xinzheng and Jia Gaofeng. Automatic seam tracking system for submerged are welding with linear CCD vision sensors[J]. Journal Tsinghua University, 2003, 43(5): 597-600.
4Zhang Xiaoming, Wang Gang and Feng Lina. Horizontal Submerged Arc Welding Equipment Based on the Torch Swinging Design [J]. Advanced Materials Research, 2012(429): 101-104.
5Bortsov A N, Shabalov I P, Velichko A A, et al. Features of mul- ti-electrode submerged arc welding in the production of high- strength thick-walled pipes[J]. METALLURGIST, 2013, 57(3/4): 310-319.
