Ten years of sharpening hardships and continuous innovation drive CRRC to run out of the "China Intelligent Manufacturing" acceleration

CRRC Changke Co., Ltd. High -speed EMU Manufacturing Center Mono the workshop. Photo by Zhang Yang

A few days ago, on the high -speed rail assembly line of CRRC Changchun Rail Bus Co., Ltd., dozens of workers are surrounded by a new batch of intelligent vehicle groups that have just been launched on the long line. "The new batch of 350 kilometers per hour has been saving for more than two months to Zhengzhou, Henan, and has been praised by local passengers. It's! "A worker master said.

Since the 18th National Congress of the Communist Party of China, CRRC has successively developed the first high -speed high -cold vehicle group in China, China Standard EMU with complete independent intellectual property rights, and the world for the first time in the world to achieve 350 kilometers per hour. The intelligent EMU, and the "Ruixue Welcome Spring" Winter Olympics trains ... brightened the beautiful business card of China's high -speed rail, and stabilized the "China Intelligent Manufacturing" road.

Install the "Chinese Brain" for the high -speed rail

Ten years ago, China's high -speed rail had to rely on imported goods in terms of key core technology -network control technology. The price was too expensive, and it was often subject to people. How to do?

CRRC has established a special technical team and led by Chang Zhenchen, a doctoral engineer who graduated from Jilin University's vehicle engineering. "During my PhD, the main direction of the main attack was a car. The high -speed EMU was basically a 'foreign man'. Seven or eight team members were also temporarily transferred. The road to research and development and exploration is particularly difficult." "People's District", the leader of the "Chinese Brain" on the high -speed rail, Chang Zhenchen, 57, recalled that although the road ahead is difficult, the team's thinking is extremely clear -aiming at the international advanced technology level, the foundation of technology introduction in technology introduction On the top, realize digestion and absorption and innovate.

The team lasted more than two months, found problems from tens of thousands of lines, and overcome technical problems such as integration of autonomy, vehicle control and diagnostic logic autonomy, etc., which made a large number of high -speed rail and urban railway vehicles use " Chinese brain.

Nowadays, about 40%of the high -speed rail of the motherland is "made of long guests." In the past ten years, a number of key core technologies were born from here -the overall design of the "Fuxing" China Standard EMU, as well as the core technologies such as vehicle body, steering gear, traction, braking, and other core technologies to achieve independent research and development; International railway rooms that can be operated on different climatic conditions, different track distances, and different power supply standards; winter Olympic trains with cutting -edge technologies such as big data, 5G communication, and Beidou satellite positioning ... ", Frequent stunning the world.

Leading the peak with innovation drive

From "Made in China" to "Creation of China" to "China Intelligent Manufacturing", in the past ten years, CRRC has made a development route of "independent innovation, deep control, positive design, and root in Changke". Gradually realize the leap from the Chinese high -speed rail from "chasing" to "leaders".

By setting up the "Trinity" technology innovation platform with the National Engineering Technology Research Center, the National Engineering Laboratory, and the National Enterprise Technology Center as the core. Model EMU, realize the full product coverage. Especially the "Ruixue Welcome Spring" Winter Olympics train, which appeared during the Beijing Winter Olympics this year, was equipped with a 5G ultra -high -definition mobile studio for the first time, winning widespread attention and praise at home and abroad. However, people do not know that in order to ensure the functional stability and safety of the studio in high -speed operation, the R & D team has restructured the communication network framework of the high -speed train trains, and re -developed the routing strategy of the underlying software of the 5G communication board card. In the end The major technical application innovation studio that reflects the national strategy and long -term planning can successfully demonstrate the strength of China's rail equipment manufacturing industry.

Talent "Passing Belt" is an empowerment for transformation and upgrading

Hu Junxiang, a senior technician of CRRC, who has won the National May Labor Medal this year, was recently praised by the People's Daily- "The upper body is explored into the bottom of the high -speed rail vehicle, the wires and ports are densely set, the right hand is raised by the welding torch, the left thumb finger pinch the wire, and the middle finger push the welded welding. Silk, look up and squint. In the operation area of ​​the chopsticks, in less than 7 minutes, complete 7 points of welding ... "This detailed description is his" unique " -" slightly shrinking plum blossoms "Big".

A column of high -speed EMUs cover more than 80 line types, nearly 20,000 guide lines, and about 100,000 wiring points. These lines and points can be called the "nervous system" of the train. The welding process is not poor. Hu Junxiang told reporters that in 2015, CRRC entered the China Standard EMUs with completely independent intellectual property rights in the trial production production production. In order to solve the "stuck neck" problem of welding, he overcome the "slight shrinkage with welding tap on the tip of the needle". "Plum Blossom" technology, the automatic detection system established by the electrical line conductivity established by the workers, has been used to this day.

In the CRRC, you can compact craftsmen."High -speed rail welding master" Li Wanjun overcome the problem of welding operations of the key parts of the high -speed rail steering gear to achieve "technical breakout"; "programming ability" Xie Yuanli and his team completed a number of problems in the field of automated welding in the high -speed EMU;The assembly process of the large aluminum alloy body component can be streamlined to one person and two minutes to complete ... Today's CRRC, with high -skilled leaders as the core, successfully set up more than 10 operator workstations, and complete the completion of the item.More than 1,300 technical problems, tens of thousands of trainers.Innovate the "China Standard", actively lead the "China Speed", and continue to polish the "National Business Card". In the past ten years, CRRC has submitted a bright answer of "China Intelligent Manufacturing" with a high sense of responsibility.

Source: Changchun Daily

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