"Doctor B" listening to the music of railway rail

At 8:30 on December 7, the k865 train from Tangshan to Linfen just entered Pingyao station. Passengers are familiar with the "rumbling" sound produced by the wheel rolling on the rail. No one will appreciate and interpret it. However, from the moment when the train entered the station, Xu Guojun, the second section chief of Jiexiu flaw detection of Taiyuan Public Works section, listened carefully with keen ears to perceive the information brought by "rail music", and used the weld flaw detector to make "B-ultrasound" for the rail, to diagnose whether there was a crack in the interior and eliminate the hidden danger of derailment.

according to Xu Guojun, there are many passenger and freight trains running on the Nantong Pujiang line. In winter, the temperature difference between morning and evening is large, and the probability of rail internal crack or nuclear damage increases. Because rail flaw detection uses ultrasonic reflected by flaw detector to find and judge whether the rail internal is intact, each flaw detection operation is a great test for the mental, hearing and eye power of the flaw detector. They should not only listen to all kinds of alarm sounds from the flaw detector, but also stare at the sound wave image on the flaw detector at all times, and then conduct comprehensive analysis, and carefully check every inch of rail. In case of any abnormality, it is necessary to push the instrument back and forth for several times. If it is confirmed that there is damage inside the rail after review, they will mark the damage on the rail and inform the relevant line workshop to replace the damaged rail in time. A 6031 a 6031 Xu Guojun, 38, has many "glory rings" on his head. With years of hard research on difficult injuries, hard practice of flaw detection skills, and the ability to identify injuries, he has also won the title of "technical expert" and "top skilled personnel" of Taiyuan Bureau Group Company. A 6031 a 6031 needs to squat 10 times for each group of weld joints detected. According to the calculation of checking 5 km steel rails in each work shift every day, each person should do at least 1600 squatting exercises, each squatting takes 5 minutes, and the squatting time is longer in case of difficult injuries, which is a great test for the waist and physical strength of the flaw detector. The 16 flaw detection workers led by Xu Guojun will check 1200 welds on the up and down lines of Nantong Pujiang every cycle, and the task is very arduous. The flaw detection work area of

Xu Guojun undertakes the flaw detection task of rail base metal and weld joint of six stations between Taigu and Yi'an station, which are 200 km from the upper and lower lines of Nantong Pu bus passage. They overcome the influence of outdoor low temperature and high labor intensity. With their eyesight, experience and sense of responsibility, they found 85 hidden dangers of damage, without any missed detection and wrong judgment, to ensure that The operation safety of passenger and freight trains is improved.

China Communications radio reporter: elegant