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The unique skills of Yuan Zhenghai's studio members.
1) Yuan Zhenghai's "First Precision"

1993 Yuan Zhenghai returned to Jiangling Mould Center (the predecessor of Jiangling Mould Factory) after being sent by Jiangling to Nanchang Senior Technical School. Two years of theoretical and practical training, although of great help to his work, but the basic skills of making molds are very important, and there can be no falsehood. Through hard study and hard practice, he has mastered the unique skill of "first grade accuracy" in the basic skills of filing. The key parts of the mold have high precision, and the adjustment and maintenance are all done by the "silk" of the hair. He only needs a file to know how much silk it is, not bad at all. There is an urgent task in the workshop, and it is necessary to process a key part of the mold, which requires tight time. You can't use a grinder to grind it, but only a file. Yuan Zhenghai resolutely accepted this hot potato. In a short time, he finished processing. After testing, the flatness and flatness of the parts meet the requirements. As a result, his "one-stop" trick has been recognized by everyone. Later, this skill also won him the honorary title of "Top Ten Skilled Craftsmen in Jiangxi Province".

2) Wan Qiang "Competitive King"

Wan Qiang, a member of the studio, is the second monitor of Yuan Zhenghai's team. His "filing skill" inherited Yuan Zhenghai's unique skill of "one file is accurate" and developed in an all-round way in the basic skills of locksmith, such as sawing, chiseling,

Drilling, marking, processing technology, etc. In order to improve his basic skills, Wan Qiang learned from various masters. He spends every day in the workshop, practicing whenever he has time, not standing, squatting or lying down, and his eyes are not idle. He has been absorbed and single-minded, and has been practicing hard for more than half a year. Finally, he mastered the basic skills of comprehensive technology. Because of its excellent technology, it has been among the best in the fitter competitions in provinces and cities and Jiangling for many times, and is known as the "king of the competition". In 2006, he won the second place in the fitter group of the second provincial workers' vocational skills competition; In 2009, he won the first place in the fitter group of Nanchang Workers' Skills Competition; In 2009, he won the first place in the national workers' skills competition in Jiangxi Province. In 2006, he won the excellent award of fitter group in the national workers' skills competition. Chief technician of Nanchang in 2009.

3) Wan Renyi's "debugging method"

Mold debugging is an important process with great technical difficulty in mold manufacturing, which requires debugging personnel to have more professional and comprehensive comprehensive analysis ability. Due to the long mold production cycle, the mold assembly and debugging time accounts for as much as 1/3 of the mold production cycle. Therefore, it is more critical to speed up the assembly and shorten the debugging time. Wan Renyi, a member of the studio, is an important backbone of Yuan Zhenghai's team. Proficient in various mold structures and product molding characteristics, with strong ability to diagnose mold problems. Through years of work experience, he has explored a four-step debugging method of "seeing, listening, cutting and thinking". He has debugged thousands of molds and accumulated rich experience in mold debugging. When debugging the mold, he thoroughly analyzed the problem, judged the problem accurately, solved the problem quickly and eliminated the problem thoroughly, which fully demonstrated his superb mold adjustment skills and was called "wonderful doctor" by his colleagues.

4) Lai Aiping's Polished Works

Lai Aiping, a member of the studio, has a flexible mind and meticulous work. He made great efforts to polish this skill with a pneumatic pick and created a unique "polishing skill". Even the master admires his polishing skills. He grinds the side quickly, accurately and well, and is good at thinking. According to the differences of profiles, he modified the small grinding wheel into dozens of geometric shapes, which is convenient for pneumatic picks to polish various parts of profiles. The wrapping die of the new generation Transit large side sliding door assembly is made by Turkish die company, and the surface of the die is guaranteed by numerical control. In the die debugging of Jiangling, it is necessary to manually treat the die surface, but the polishing level of foreign technicians is difficult to meet the technical requirements, so Jiangling sent Lai Aiping to support it. At this time, his "polishing work" was fully displayed. Soon, the smooth surface of the mold was displayed in front of foreign technicians, who sincerely gave a thumbs up.

Four. Recent technical research achievements

In recent years, Yuan Zhenghai's Skill Master Studio has actively participated in Jiangling's new product development and productivity improvement projects, and achieved remarkable technical research results. The following is a list of some key technical projects:

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Name of the article

Members preside over or participate.

Science and technology achievement award

Annual net savings or value creation

1

Wan Haiming expansion calculation method

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China machinery industry won the third prize of scientific and technological progress and the national utility model patent.

Greatly shorten the mold development cycle.

2

Development of V348 wheel rim spoke die

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The first prize of Jiangling Science and Technology Achievement Award

More than 600,000 yuan

three

Development of special mold for high-top rear twin tires

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The third prize of Jiangling Science and Technology Achievement Award

1 10,000 yuan or more

four

Application of new die material in forging air-cooled steel

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The second prize of Jiangling Science and Technology Achievement Award

More than 500 thousand yuan

five

Application of New Structure of N800 Top Cover Side Wall Die

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The second prize of Jiangling Science and Technology Achievement Award

More than 500 thousand yuan

six

Development of NHR longitudinal beam mold

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The third prize of Jiangling Science and Technology Achievement Award

More than 500 thousand yuan

seven

Study on the determination of clearance value of blanking die for thick plate

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The third prize of Jiangling Science and Technology Achievement Award

Greatly shorten the mold trial time.

eight

Development of nonstandard fixture for headrest bracket of bus seat

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The third prize of Jiangling Science and Technology Achievement Award

More than 260 thousand yuan

nine

Quality improvement of N900 project roof

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Jiangling third prize

More than 250,000 yuan

10

Modification of A4 Line Die

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I'm applying for the first prize of Jiangling Science and Technology Achievement Award.

1 10,000 yuan or more

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Case 1, development of V348 wheel rim spoke die.

Effect of tackling key problems: Through the domestic research and development of V348 twin-tire wheel spokes, the technical performance of the produced steel rings completely reaches the imported parts, saving the company 600,000 yuan in procurement cost every year.

All along, the wheels of V34 8 Transit series are imported from Turkey, and the cost of a single vehicle is 226.5 1 yuan. 20 10 year V348 sales 1 15 16, the wheel cost is more than 2.6 million, which is too high. Because the wheel is imported from abroad, it is inconvenient in cycle and production scheduling, so the wheel needs to be localized. In the process of localization, it is found that the qualified rate of rim spoke end jump and radial jump is too low to realize localization switching. To this end, Yuan Zhenghai's skill master studio regards this as an important key project. On the one hand, by reforming the flaring die, the interference of the concave-convex die of the bulging die is eliminated, and the rim end jump accuracy is controlled. On the other hand, the radial runout accuracy of spokes is controlled by changing the blanking shape and the surface smoothness of convex and concave dies. After technical research, the technical performance of domestic steel rings completely reaches imported parts, saving the company 600 thousand yuan in procurement cost every year.

Case 2, Modification of A4 Line Mould

Economic benefit: Through the application of new technology and new process, 38 sets of molds were reformed, which ensured the full-load production of A4 line and saved the company nearly one million renovation expenses.

In 2009, in the construction of Jiangling's 300,000 Xiaolan production base, there was an A4 production line representing the advanced stamping level in the world today. Yuan Zhenghai led the studio members to participate in the transformation of all manually operated molds on this production line. Because the original mold is operated by hand and cannot match the highly automated production line, it is necessary to transform the manual mold into a high-speed automated mold with international advanced level. From a technical point of view, they have no experience in this field, and the difficulty can be imagined; Theoretically speaking, if they overcome several technical difficulties, there is hope to complete this task and save the company nearly 2 million renovation costs. After much consideration, Yuan Zhenghai once again shouldered the heavy burden, selected two studio members and started technical analysis early. In the case of tight time, heavy tasks and no experience in renovation, they have consulted a large number of domestic and foreign technical materials and consulted a number of engineers and technicians since the second half of 20 10, and gradually overcome various technical problems. Over the past year, they have worked overtime day and night, carried forward Yuan Zhenghai's team spirit, and completed the transformation task of the first batch of 38 sets of molds with their unique diligence and wisdom. It can be said that this transformation speed is unprecedented in Jiangling, which has been highly affirmed by the company leaders and made outstanding contributions to the early production of Xiaolan production base. At present, Yuan Zhenghai's skill master studio has started the transformation task of the second batch of 4 1 set molds with full confidence and all-out efforts.