Interview

Sun Jingnan, the goddess of welding, tightly welds ideals with rail transit

Seetao 2022-05-27 10:54
  • Sun Jingnan led the team to complete 6 scientific research projects, creating economic benefits of more than 40.5 million yuan
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5 Minutes

Sun Jingnan, a member of the Communist Party of China, an electric welder in the body workshop of CRRC Nanjing Puzhen Vehicle Co., Ltd., a senior technician, and an international welding technician.

Wearing a full set of aluminum alloy welding work clothes weighing 5 kg and composed of work clothes, protective leather clothes, and exhalation mask, 52-year-old Sun Jingnan, an electric welder in the body workshop of CRRC Nanjing Puzhen Vehicle Co., Ltd., picked up the welding torch and started to work. A fine and neat fish scale weld is perfectly presented, and the two aluminum alloy body materials are precisely welded together. Sun Jingnan has been engaged in such work for 32 years.

When Sun Jingnan first started working, CRRC Puzhen only produced green leather cars with a speed of 60 to 80 kilometers per hour. She was engaged in the welding of ordinary passenger cars. At the beginning of the 21st century, China's rail transit technology has undergone tremendous changes, and Sun Jingnan began to work on the welding of high-speed trains. In order to master new technologies, Sun Jingnan worked hard and worked hard, so that Sun Jingnan successively obtained 18 European standard welding qualification certificates such as MAG welding, MIG welding, and TIG welding, and obtained the international welding technician certificate, becoming a welding expert.

Once, the job required welding an aluminum alloy with a gap of 2 to 3 mm. The French welders were afraid that they would get through the welding, so no one dared to go. However, Sun Jingnan picked up the welding torch and achieved a beautiful perfect score, which made the French engineers and technicians admire the Chinese girl with admiration. In the follow-up projects, as long as they encounter problems, they will directly call: Madam Sun, this is only you can weld. Since then, Sun Jingnan has the name of the Goddess of Welding.Editor/Ma Xue

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