Abstract
The successful development of China Railway puts forward higher requirements on the rail. The welding joint is the weak part of the rail, and the firmness of the welding joint determines the speed, safety, and comfort of the train. Guo Jinlong is a rail welding expert who has made a significant contribution to the speeding up of China’s railways and ensuring their safe operation. By interviewing Guo and examining relevant literature,the author summarized how Guo developed equipment maintenance skills and innovated rail welding equipment;further, based on Guo’s career over the past 40 years, the author reproduced the process of an ordinary worker growing into "Worker Academician," carrying forward the great craftsmanship of the new era.
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