People's Daily praise the high -level technician of the Chinese car, Hu Junxiang: the high -speed rail assembly is not the slightest

Hu Junxiang, senior technician of CIC Changke ——

High -speed rail assembly is not tidy (craftsmanship)

Reporter Liu Yiqing

"People's Daily" (06th edition of July 05, 2022)

【Observatory】

The upper body is explored into the bottom of the high -speed rail vehicle. In the operation area of ​​the chopsticks, in less than 7 minutes, the welding of 7 points is completed ... 25 years of employment, the first line at the high -speed rail, Hu Junxiang witnessed the development of the Chinese high -speed rail and summarized the operation of the operation and summarized the operation. The law has more than 30 laws, and has won 13 national invention patents and practical new patents. It has formed more than 130 technical results. It has won the title of "National Technical Expert" and the National May Day Labor Medal.

The upper body is explored into the bottom of the high -speed rail, the wires and ports are densely set, the right hand raises the welded torch, the left thumb is pinching the wire, the middle finger push the welded wire, and looks up to squint ... , Senior technician Hu Junxiang (see the picture, Shao Yue) is welding the connector.

In the operating area of ​​the chopstick head, 7 welding may be densely distributed, and the spacing of less than one millimeter is taken, and tin, welding, and fixed ... Hu Junxiang holds a welding gun to shuttle on the bottom of the car repeatedly. "Completed." In less than 7 minutes, Hu Junxiang shook his hand and drilled out of the bottom of the car. The welding section of the connector is like a plum blossom, so some workers call it "slightly reduced plum blossoms".

Bao Jianfeng came out from the grind, and the fragrance of plum blossoms came from bitter cold. At present, the connector of this welding structure is mainly used in the high -speed rail control system, which transmits brakes and start signals for core components such as motivation. Welding in the precision instrument, "Dare not dare to settle". During welding, the workers need to use their fingers to hold a few millimeters of thick wires to find the location, align the welding needle, and start the welding until it solidifies. The temperature of the soldering iron can reach 400 degrees Celsius, and if it is not proper, it will be burned. At first, Hu Junxiang always retracted his hands consciously.

practice! In order to save costs, Hu Junxiang started from the welding wire and could use two or three hundred. Until the two wires welded by him, he could hang two bottles of mineral water, Hu Junxiang was relieved, and his long -term hard training left a deep scar on his index finger.

This year is the twenty -fifth year of Hu Junxiang's work in CRRC. Welding wires and inspection wiring. He has always dealt with the line. From green leather cars, blue leather cars, to Harmony, Fuxing, it is years. What is unchanged is consistent.

In 1997, it was the first task of the 18 -year -old Hu Junxiang, a 18 -year -old Hu Junxiang, for the control cabinet and connecting wires for the green car equipment. In a space of less than 2 square meters, he has to clarify about 200 wires. "Every day, where are they all directed?" Hu Junxiang couldn't help pondering, remembering electrical drawings and learning assembly skills. Five months later, he became the youngest deputy squad leader in the factory at that time.

After that, Hu Junxiang moved from the green car to the EMU. Just the number of wires of the equipment control cabinet turned ten times, and the assembly method also turned from the line to form a system line network, and then assembled as a whole. Hu Junxiang and workers followed foreign experts to learn technology during the day, and pierced the progress of the workshop at night. "Experts do it once, we do it twice or three times, and we can catch up in the morning and evening!" The workers gradually explored the work methods.

In 2015, CRRC began to produce the production of my country's independent research and development and have completely independent intellectual property rights groups. During the test phase, the number of lines increased by 15%again. The system line is becoming increasingly complicated, and the situation of the wrong line occurs. In the past, the universal meter verification was mainly used, time -consuming and labor -intensive, and there were errors. Once the judgment was wrong, it was necessary to remove the work.

Hu Junxiang tried several verification methods in a row, and the result was still unsatisfactory until he received a few wrong calls at home. The communication company explained that because the converting box was connected to the wrong line, Hu Junxiang suddenly had ideas: also signal emission, line transmission, "one -on -one" receiving, can high -speed rail line inspection be "called"?

In 2016, Hu Junxiang and the workers established a signal transmission source, sending signals to the receiver through the measured line, and judging whether the line connection was correct, interrupt or reverse through the receiving situation. This detection method has been used to this day, and it is named an automatic detection system for electrical line conductivity to promote the production efficiency of electrical line detection processes by 62.5%, ensuring that the wiring accuracy rate is 100%. As of now, Hu Junxiang has been authorized by the national invention patent and practical new patent authorization. In 2018, the studio he led by him was awarded the National Skills Master Studio.

Near noon, the workshop is still busy. "Now there are more and more young people who will have plum blossoms, all of which are taught by my hands!" Drilling from the bottom of the car, high -intensity welding operations make his hands trembling, tone, tone But it is full of pride. "The old traditions of craftsmen can not forget." Hu Junxiang joined for 17 technical workers to form a lecturer group, with a total of 1800 hours, and 90 senior technicians were trained in the past 3 years.

Source: People's Daily Client Jilin Channel

- END -