Source: People's Daily
Figure (1): Shi Kun, an oil producer of PetroChina Qinghai Oilfield Company and a "national technical expert", is operating oil production equipment. Photo by Fan Wenhong (2): Liu Shiyong, a fitter of Chengfei Company and a "national model worker", is operating an air drill. Photo courtesy of Chengfei Company (3): Wang Haifeng, an employee of Heilongjiang Forestry Design and Research Institute and winner of the "National May Day Labor Medal", is making snow sculptures. Photo provided by the interviewee (4): Zeng Zhengchao, the gold medalist of the welding project of the WorldSkills Competition, is carrying out welding operations. Photo courtesy of China 19th Metallurgical Corporation (5): Wang Wei, the team leader of the seventh group of sheet metal in the sheet metal workshop of Shangfei Company and the "Chinese quality craftsman", in the shape of parts. Photo by Shen Guilin (6): Xu Shikun, a pumping station operator of the Jiangdu Water Conservancy Project Management Office in Jiangsu Province and the winner of the "National May Day Labor Medal", is inspecting the equipment. Reporter Bai Guangdi Photo Data source: Ministry of Human Resources and Social Security, All-China Federation of Trade Unions
General Secretary Xi Jinping emphasized: "We must vigorously carry forward the spirit of model workers, labor spirit, and craftsman spirit, give full play to the demonstration and leading role of model workers and craftsmen, and encourage the majority of employees to achieve their dreams in hard work, honest work, and creative labor." "Encourage more workers, especially young people, to take the road of becoming skilled and serving the country with skills, and cultivate more high-skilled talents and craftsmen of great countries." ”
From screws to solder joints, from thousands of exercises to millimeters and microns...... Thousands of craftsmen have created extraordinary achievements in ordinary positions. In June 2017, the sixth edition of this newspaper launched the "Craftsman Skills" column, focusing on high-skilled talents such as craftsmen and skilled craftsmen of great countries, and representative inheritors of intangible cultural heritage, showing their exquisite skills and showing their craftsman spirit.
Today, the "Craftsman's Unique Skills" column ushered in its 200th issue. Let us once again approach the craftsmen who have been reported in the column, feel their dedication, excellence, meticulousness, and pursuit of excellence craftsman spirit, and record their new stories of hard work, in-depth study, innovation, and daring to be the first in their respective positions.
- Editor
Innovative construction methods to ensure the smooth operation of the runner of the hydro turbine unit, hand-held tape measure, fine measurement of EMU car side wall data, explanation of parameters, to help students master more technical details, between warp and weft, to find more combination points between Li Jin's skills and modern life...... The craftsmen are down-to-earth and strive for perfection in their respective positions, and compose a song of workers in the new era with perseverance and dedication.
Cui Xingguo, special technician of hydraulic turbine assembly of Dongfang Electric Group Dongfang Electric Co., Ltd.——
Independent research and development of precision assembly
In the assembly plant of Dongfang Electric Group Dongfang Electric Co., Ltd. in Deyang City, Sichuan Province, machines roar and sparks fly. "Attention has to be paid to every detail to ensure the precision of the assembly process. Next to the water guide mechanism manufactured for the Longxikou Hydropower Station in Leshan City, Cui Xingguo, a special technician of the turbine assembly of Dongfang Electric Co., Ltd., carefully measured and checked the assembly of the water guide mechanism.
Cui Xingguo, who has participated in the construction of major hydropower projects such as Xiluodu and Baihetan, and has been engaged in the field of hydropower equipment manufacturing for more than 30 years, has led his team members to continue to tackle key problems, make breakthroughs and innovations, and make contributions to the development of hydropower technology. The "universal adjustable" through-flow unit assembly tooling independently designed and developed by him has greatly improved the concentricity, levelness, opening size of the guide vane and the pass rate of the water guide mechanism of all output through-flow units, and has been widely promoted and applied.
Runner assembly is an important part of the assembly of hydraulic turbine units. In the static balance of the runner of the Baihetan Hydropower Station unit, in order to ensure the smooth operation of the runner of the turbine unit and achieve the goal of the runner static balance test, Cui Xingguo adopted precision guidance tooling and righting adjustment technology to make all the parameters and indicators better than the high-quality standard.
In the next step, Cui Xingguo set his sights on the intelligent transformation and digital transformation of the manufacturing industry. "We need to help transformation and upgrading through intelligent manufacturing, promote the re-innovation of product manufacturing methods, and form a double improvement in quality and efficiency. Cui Xingguo said.
Zhou Jinghui, riveter of the aluminum car body production line group of the manufacturing center of the CRRC Changke National Railway Division——
Delve into process innovation techniques
"781 mm, 782 mm ......" walked into the aluminum car body production line group of the manufacturing center of CRRC Changke National Railway Division, and the silver-white "Fuxing" intelligent EMU car body has been welded, Zhou Jinghui is holding a tape measure and is carefully measuring the side wall data of the train driver's cab.
The body of a "Fuxing" EMU is often composed of many aluminum alloy plates of different sizes and shapes, and Zhou Jinghui's job is to accurately assemble these parts into the EMU skeleton to prepare for the next step of welding. Since last year, in order to achieve the goal of reducing weight and driving resistance, the thickness of the outer surface of the EMU side wall and other components has been reduced from 3 mm to about 2 mm. "Aluminum alloy conducts heat quickly, and if there is a slight deviation during welding, it can cause a slight depression in the car body. Zhou Jinghui said.
In order to overcome technical problems, Zhou Jinghui continued to experiment and explore a welding process that is more suitable for the current profile, so that each part is heated evenly as much as possible during welding to reduce deformation. "At present, this technical problem has been basically solved. He said.
"Not only to finish the work, but also to do the work well", this is the work philosophy that Zhou Jinghui has always adhered to. In 2007, when manufacturing EMUs with a speed of 200 kilometers per hour, Zhou Jinghui found that it was very cumbersome to cut the small side wall panels of the driver's cab in the traditional way. In the absence of technical reference, Zhou Jinghui spent more than one month to figure out a new set of cutting methods, to achieve accurate cutting within half an hour. Up to now, Zhou Jinghui has summarized more than 30 excellent operation methods and won 11 national patents.
2022 WorldSkills Competition Special Competition Mobile Robot (Double) Project Gold Medalists Hou Kunpeng and Tang Gaoyuan -
Train hard and shine
"Try to set the upper limit of the color threshold to 135. In the training building of Luohe Technician College in Henan Province, Hou Kunpeng and Tang Gaoyuan, young teachers of the Department of Electrical Engineering, are patiently guiding students to adjust the program parameters of mobile robots.
In October 2022, in Bordeaux, France, Hou Kunpeng and Tang Gaoyuan won the gold medal in the mobile robot (double) project of the WorldSkills Competition Special Competition with excellent results. Now, they have been hired as teachers, changing their roles, going back and forth between the three-foot podium and the training base, teaching programming, teaching modeling, passing on experience, and guiding more students to participate in skill competitions.
Mobile robots are a comprehensive system that integrates multiple functions such as environmental perception, path planning, and motion control, and operators need to master multidisciplinary knowledge such as mechanical design. Faced with the heavy pressure of study and training, some students retreated. In this regard, Tang Gaoyuan always used his own experience to encourage them to persevere.
When he first entered the school, he wired the bulb according to the circuit diagram, and Tang Gaoyuan was often confused. In order to make up for the shortcomings, he moved the bed to the training base and studied knowledge and skills hard. "From a student to a world champion, we have relied on perseverance and the pursuit of excellence in our skills. Hou Kunpeng said.
At present, the duo guides students to design solutions, write programs, and simulate debugging, laying a solid foundation for them to move towards a broader platform. "One of the most important aspects of inheriting the spirit of craftsmanship is the courage to challenge oneself. Hou Kunpeng said. Tang Gaoyuan, who was on the side, added: "I hope to lead more students to the stage of the skills competition and bloom their youthful demeanor." ”
Liu Xianglan, the national representative inheritor of the traditional spinning, dyeing, weaving and embroidery skills of the Li nationality——
Spinning, dyeing, weaving and embroidery inheritance and innovation
Sit on the floor, tie around your waist, stretch your legs out, and step on a stick...... As a national representative inheritor of the traditional spinning, dyeing, weaving and embroidery skills of the Li nationality, Liu Xianglan is committed to the inheritance and innovation, popularization and promotion of Li Jin skills, and it is now in its 42nd year.
Li Jin technique is one of the more ancient cotton spinning dyeing, weaving and embroidery skills, and the inheritance of skills in the past is only passed down from generation to generation among Li women. At the age of 13, Liu Xianglan took over her first waist loom from her mother, began to learn brocade, and completed her first work independently at the age of 15. There is no drawing reference, so he starts from imitating past works, gradually innovates and improves patterns and carriers, and constantly studies Li Jin's skills. In 2008, Hainan launched the application for the "National Intangible Cultural Heritage Inheritor of Li Jin Skills", and Liu Xianglan was the first to register.
"Li Jin's skills need us to continue to innovate and promote. Liu Xianglan not only passed on the brocade weaving skills to her son and grandson, but also became a guest teacher at the Hainan Provincial National Technical School and some primary schools in Wuzhishan City.
Walking into the Wuzhishan Li Jin Academy, there are not only traditional Li Jin tube skirts and costumes, but also personalized bed decorations, wall hangings, shawls and other products. "Under the guidance of Mr. Liu, we hope to find more combinations of Li Jin's skills and modern life, so that more people can feel the charm of Li Jin. Liu Xianglan's apprentice, Huang Chaocui, a villager in Chongshan Town, Wuzhishan City, said.
"Innovation is the best inheritance. In the future, I will continue to devote myself to promoting and popularizing Li Jin's skills. Liu Xianglan said.
Ingenuity builds dreams, skills serve the country. Craftsmen in different fields interpret the spirit of craftsmen with diligent hands and silent dedication, and highlight the beauty of labor and creation. On the broad stage of the new era, craftsmen have a lot to do, and they will definitely make a difference.
(Reporter Zhang Wenhao, Wang Yongzhan, Liu Yiqing, Sun Haitian)
People's Daily (2024-05-01 Edition 04)