Abstract：Continuous production greatly releases the production capacity and reduces the production cost. Welding machine is the fundamental guarantee for continuous production of cold rolling. Miebach laser welder is used in pickling-tandem mill production line of a steel plant. Frequent rewelding in actual production has adverse effects on production rhythm, which may lead to disqualification of cold rolling process and shutdown waste products. The data were collected and Pareto diagram was used to analyze the reasons of affecting rewelding. It is found that the overlap of weld was the main cause of rewelding. In order to reduce the rewelding of welding machine, the causes and improvement measures of weld overlap were systematically studied.
2021, Vol. 31 
