The first place in the youth group of the welding robot project in the 2019 Jiake Cup International Welding Competition, The 2020 National Industry Vocational Skills Competition - National Intelligent Welding Vocational Skills Competition The first place in the overall personal score of the welding equipment operator competition, and the national technical expert , the National Railway Outstanding Communist Youth League Member... With his love for welding technology and the spirit of hard work and struggle, he grew into a post-95 "welding expert" with excellent skills through countless arduous welding trainings. He is Li Yanqing, a welding operator in the frame workshop of CRRC Datong Electric Locomotive Co., Ltd.
"I have to repeatedly test and modify robots every day. I have to train for more than ten hours a day before the competition. I have to grit my teeth and persevere even if welding slag and sparks fall on me." In 2020, Li Yanqing passed the selection process. Represented the company in the National Industry Vocational Skills Competition - National Intelligent Welding Vocational Skills Competition Welding Equipment Operator (Welding Robot Operator) Competition and the Third National Welding Robot Operation Competition. From the initial workshop screening to the final national competition, Li Yanqing trained day and night for more than two months under the guidance of his master.
During the training period, he continued to break through himself and overcome each difficult problem. During the welding process, there was a problem with a machine, resulting in a weld that did not achieve the expected results. In order to find out the cause of the problem, even though it was late at night, he and his master still experimented on each robot, comparing each procedure and each step. instructions. After hard work, the problem was finally discovered and corrected. During the training, he also discovered that there was an ovality problem in the round tubes in the test piece. The assembly error could reach 0.5mm, but the evaluation standard for the test piece was that it must be less than 0.5mm to be considered qualified. Since the welding parameters are not fixed well, he needs to strictly operate according to the standards over and over again in the limited practice time and master multiple sets of welding parameters. With sufficient preparation, when there was an assembly error in the test piece during the competition, Li Yanqing flexibly applied parameters and operating skills to complete the welding of the test piece, ensuring the quality of the weld. With a solid theoretical foundation and excellent practical skills, he was able to defeat The heroes stood out with the first overall score, and finally won the competition and were awarded the title of National Technical Experts.
"The welding work is very stressful and tiring. The average welding time of a single beam is nearly three or four hours, and every weld is very important, so there is no room for sloppiness." In the fourth quarter of 2021, the workshop production tasks are tight and faced with cross-cutting Due to the current situation of heavy production and workload and shortage of personnel, Li Yanqing took the initiative to take on the night shift work, strictly controlling quality and conscientiously self-inspecting and mutual inspection. In order to improve the production efficiency of locomotives, he and his team members launched projects such as "Quality Research on the First Series of Spring Seat Cylinders of FXD1 Locomotives", "Quality Research on Undercutting of FXD1 Locomotive Side Beams", "Quality Research on Improving Machine Welding Efficiency of HXD3C Locomotive Cross Beams" to effectively solve production problems. Solve difficult problems and greatly improved production efficiency. In December 2021, he was awarded the honorary title of CRRC Youth Job Expert.
25-year-old Li Yanqing used her wisdom and diligence to interpret the perseverance of a "struggler". "I'm still young, and I hope I can train in more projects and lead more young people to work together to create greater value for the company." As for the welding career, he is still walking on the road. There must be greater challenges ahead, but as the back wave, Li Yanqing is more confident and determined than ever before.
