Mechanical engineer Xue Zhifei——
Research and development of agricultural machinery and equipment to climb the peak of innovation.
1,390.8 billion catties!As soon as the news of this year's grain output hit a new high, Xue Zhifei, a professor-level senior engineer of China National Machinery Group, was very excited, "There is also my small part in this." ”
No, Xue Zhifei has been dealing with tractors in the first half of his life. When I was in college, I studied tractors, and as soon as I graduated, I entered the China Yituo Technology Center of SINOMACH to work. Today, over fifty years old, Xue Zhifei is still fighting in the front line of tractor research and development.
In the fall of 2023, the HB2204 hybrid tractor led by Xue Zhifei was officially put into the market. The autonomy rate of key technologies and parts of the product exceeds 90%, which can save 10% of fuel compared with traditional tractors, and can complete a variety of field operations such as deep ploughing, subsoiling, joint land preparation, and transportation with one machine. This is China's first hybrid tractor, marking a new level of China's green agricultural machinery products. As soon as the product was launched, it received a lot of orders.
In 2021, in order to revitalize agricultural machinery and equipment and continue to polish the "Dongfanghong" brand, SINOMACH decided to develop hybrid tractors. This is a difficult task for the R&D team: there is no precedent in the industry, and there is little involvement in multinational companies. The experience of new energy vehicles is also difficult to replicate, the same battery, passenger cars can run 1000 kilometers, tractors can only operate for half an hour at most.
Under pressure, Xue Zhifei did not flinch. The research and development of new energy hybrid intelligent agricultural machinery products is in line with the modern, green and intelligent development strategy of China's agricultural machineryDevelop high-horsepower new energy hybrid tractors to meet the needs of international competition ......All these inspired Xue Zhifei to move forward firmly.
It has to be done, and it has to be done well. Xue Zhifei led the team to explore. The product design will be completed in April 2021The trial production of the whole machine will be completed in June 2022, and the performance test of the whole machine will be completed in SeptemberThe reliability test of the whole machine will be completed in May 2023 and officially launched in October.
It seems to be the most ordinary and strange, but it is easy but hard.
Taking the heat dissipation system as an example, in order to find the best design parameters, the R&D team spent one and a half years and successively carried out thousands of tests such as first-class simulation, key component performance test, dynamic test and whole machine test.
This is a complex system, and every change in one parameter can trigger dozens of parameter changes. Xue Zhifei told reporters that through perseverance in trimming and improving, the system finally met the heat dissipation needs of the electric drive system in a high-temperature environment.
Looking back at 2023, Xue Zhifei has gained a lot. Looking ahead to 2024, R&D and innovation will not stop: equipping the HB2204 hybrid tractor with an intelligent driving system to achieve unmanned driving;Optimize and upgrade important parts to improve operation efficiency and reduce fuel consumption;Preparation for the development of a more powerful hybrid tractor ......"Only by working diligently can we live up to the times. We will continue to tackle key problems, strive to break through more core technologies, and shine on the huge stage of Made in China. In Xue Zhifei's eyes, there are still many scientific research peaks waiting for him to climb. (Reporter Li Xinping).
Li Bin, head of the new energy vehicle company——
Enhance the capabilities of car companies and consolidate their dominant position.
It departs from Shanghai at 6:30 and arrives in Xiamen at 20:33, 1044 kilometers, with temperatures ranging from minus 2 degrees Celsius to 12 degrees Celsius ...... along the wayOn December 17, Li Bin, founder, chairman and CEO of NIO, tested NIO's "150-degree battery pack" and broadcast the whole process online, completing the 1,000-kilometer range challenge.
On December 18, NIO announced that after receiving a strategic investment of US$1.1 billion in July this year, an international investment institution will make a strategic investment of about US$2.2 billion in NIO.
Five days later, Li Bin released the ET9, a million-yuan pure electric flagship executive sedan on behalf of NIO. **Computing platform, the world's first global operating system, 900-volt high-voltage silicon carbide platform, 7-fold redundant safety standards, chassis, electrical, intelligent, safety and other fields have made breakthroughs.
Busyness is almost the norm of Li Bin's work and life for a year. For NIO, a "new force in car manufacturing", there are many gains in 2023. According to the data, in 2023, in the domestic pure electric passenger car market with a transaction price of more than 300,000 yuan, NIO will gain more than 40% of the market share. According to the third-quarter financial report, NIO's revenue increased by 46% year-on-year6%, an all-time high;The gross profit margin of the whole vehicle was 11%, a significant increase from the previous month.
In the face of the pressure of product price reduction in the new energy vehicle industry, we have taken measures such as accelerating the ramp-up of production capacity, improving sales and service capabilities, and adjusting the price of all products, and the number of locked orders continued to grow in the second half of the year. Li Bin told reporters that in 2023, NIO has made a lot of positive progress in the full-stack self-development of key technologies, the promotion of multi-brand strategy, the construction and sharing of charging and swapping facilities, the layout of overseas markets, organization and business optimization, the acquisition of independent car manufacturing qualifications, and the introduction of strategic investment.
The full-stack self-developed achievements of 12 core technologies have been implemented, and the industry's first self-developed LiDAR main control chip, automotive-grade intelligent driving chip, and oil-cooled motor with more than 20,000 rpm have accelerated mass production. For more than a year, NIO has invested about 3 billion yuan in R&D every quarter, accounting for more than 20% of its revenue. At present, NIO has applied for more than 7,700 patents worldwide.
The construction and sharing of charging and swapping facilities have been accelerated. As of December 19, NIO had built a total of 2,289 battery swap stations and 3,351 charging stations. "Strive to go wherever the oil truck can go, and the electric car can go. Today, this goal has been basically achieved in China. Li Bin said.
Steady layout in overseas markets. On December 18, the NIO battery swap station in Amsterdam, the Netherlands, was put into operation, which is the ninth battery swap station of NIO in the Netherlands and the 33rd battery swap station built by NIO in Europe. At present, NIO's products and full-system services have been implemented in Germany, the Netherlands, Sweden, Denmark, Norway and other countries.
In the first half of this year, China's auto exports have jumped to the first place in the world, proving that smart electric vehicles are a historic opportunity for China's auto industry to lead global change. Li Bin said that in the next step, while strengthening brand positioning, improving sales and service capabilities, and making long-term investment in key core technologies, NIO will continue to improve execution efficiency and systematization capabilities, "and continue to consolidate the global market position of Chinese car companies." Reporter Wang Zheng).
Project builder Wang Heqi——
Open up the Tianshan Tunnel and make the moat a thoroughfare.
The middle of winter has arrived, and the northwest border is covered with snow. At the foot of the Tianshan Mountains, the construction of a 22-kilometer-long super tunnel is in full swing. It is currently the longest highway tunnel under construction in the world - Xinjiang Wuwei Expressway Tianshan Shengli Tunnel, and it is also the "battlefield" where Wang Heqi, manager of the fifth bid section of the Wuwei Civil Engineering Project Department of China Communications Construction Co., Ltd., has struggled for three years.
Twenty-two kilometers may not seem like a long time, but it is actually a huge challenge. After 20 years of working in the project, 41-year-old Wang Heqi has never experienced such a difficult project - not only breaking the record for the length of highway tunnels, but also crossing 16 geological fault zones, with an average altitude of 3,000 meters and a temperature of minus 20 degrees Celsius all year round. In order to shorten the construction period, the team proposed a construction plan of "three holes + four shafts", with the drilling and blasting method used for the left and right main tunnels, and the middle pilot tunnel excavated by a roadheader to achieve "long tunnels and short plays".
After successfully passing through 14 fault zones, the builders encountered a "thrilling moment" in August this year. "One day, when the TBM was almost 9 kilometers away, it suddenly found that the hard rock wall that could provide support was broken into 'tofu slag', and the TBM had no focus for a while, so it had no choice but to stop in place. Wang Heqi said.
There is no way back. Set up a special project class at the first time, the design unit will calculate on site, external experts will provide remote guidance, and the reinforcement unit will implement it in a timely manner. "Through measures such as pretreatment of the discharge and advanced reinforcement of the detour, the TBM crossed the alteration zone in an orderly manner. Wang Heqi said excitedly, driving away this "roadblocker", and the tunnel breakthrough was a big step closer. At present, the world's deepest highway shaft with a depth of 706 meters, Tunnel Shaft 2, is sprinting to the last few tens of meters, and it is expected that before New Year's Day in 2024, Shaft 2-2 will be broken through.
What does it mean that the Tianshan Victory Tunnel has been completed?"In the past, crossing the Tianshan Mountains required a lot of sharp bends and steep slopes on the glacial erosion landscape, which was long and dangerous. After the tunnel is opened, it will only take 20 minutes to cross the north and south of the Tianshan Mountains, and the travel time from Urumqi to Yuli County will be shortened from 7 hours to 3 hours. Wang Heqi said.
In 2023, 1,830 meters of new tunneling mileage will be added to the middle pilot tunnel, 500 meters of new shaft will be advanced, nearly 80% of the service tunnel will be completed, and more than half of the main tunnels on both sides will be ......"2024 is the year of the decisive battle of the project, and it is expected that the pilot tunnel will be opened in June, and the tunnel will be basically broken through by the end of the year. In Wang Heqi's view, the steady progress of transportation infrastructure construction has created a huge space for Chinese builders to show their strengths, "We must redouble our efforts to make more major projects from drawings into reality." (Reporter Han Xin).
Hu Xinhui, a teacher in a technical college——
Cultivating skilled talents to help the industry renew.
The silver medalists were Hu Xinhui and Wang Li from the Hainan delegationOn the evening of September 19, the award ceremony of the 2nd National Vocational Skills Competition was held in Tianjin. After hearing his name, Hu Xinhui, a senior lecturer from Hainan Provincial Technician College, was relieved: "I finally gave myself a satisfactory explanation." ”
From the beginning of March to mid-September this year, for more than half a year, Hu Xinhui and her partner Wang Li did not rest for a day. From 8 a.m. to 11 p.m., even if you take the bus to work and take a lunch break, you are preparing for the race. Back at the station, he didn't even pick up the medal, Hu Xinhui hurriedly made up for it, "I haven't slept so well for a long time." ”
Hu Xinhui's participation in the competition is the first industrial Internet engineering technology competition on the stage of the National Vocational Skills Competition this year, and the content of the competition is to install the "network wisdom brain" on the production line. Previously, Hu Xinhui knew more about hardware, but almost didn't know anything about network communication and programming development. In order to make up for the blind spots in knowledge, he checked information, took online classes, and studied by himself for 3 hours a day.
Book knowledge alone is not enough, Hu Xinhui still often runs into a wall in practice. Once, when he was testing an intelligent vision system, the camera couldn't identify defects in the product. After being puzzled, Hu Xinhui simply found a company specializing in manufacturing automated production lines to study. "Either there is a problem with the camera **, or there is a problem with the judgment scheme, or there is a problem with the background program. Standing next to the production line, the enterprise engineers analyzed them one by one and solved the mystery for him.
The deeper the practice, the more problems there are. Keep practicing with the questions, and the more answers you have. Insist on learning by doing and learning by doing, Hu Xinhui's technical "puzzle" is completed little by little.
Repeatedly overcoming difficulties and being experienced in hundreds of battles also gave him the confidence to deal with the competition calmly. The competition highly restored the actual production of the enterprise, and required the contestants to build and operate a miniature version of the drug intelligent production line. When using intelligent visual detection, an "accident" made many players "stuck". "The system has misjudged the qualified medicine bottle cap as 'unqualified' many times, and after repeated investigations, our hardware and solutions are fine, and the problem can only be in the program. In the face of a complex situation, Hu Xinhui quickly locked 50 key lines from thousands of lines of programs, and completed the reprogramming in less than 20 minutes, which was one step ahead of others to troubleshoot.
Participating in the competition is rewarding and inspiring. "Through the various problems encountered in the competition, I realized that I still need to improve my practice. For example, there are five workstations in the pharmaceutical production line in the competition, and each one has a different programmable controller. If we cannot keep up with the pace of technological innovation and industrial transformation, it will be difficult to meet the actual needs of enterprises in the future. Hu Xinhui said.
In recent years, China's industrial Internet industry has been booming, and the demand for new professional talents is growing, which has also brought new topics and new opportunities to Hu Xinhui. "Through enterprise research, we found that there is a large gap of compound talents who understand both production line equipment and software development, and the development prospects are broad. Looking forward to 2024, Hu Xinhui looks forward to allowing students to have a clearer understanding and richer experience of new technologies and new careers by applying for the construction of skill master studios and the development of integrated teaching materials for engineering and learning, so as to cultivate more qualified talents for the development of new industries. (Reporter Qiu Chaoyi).
*:People**.