Ingenuity craftsmanship showcases made in China
——Remember the CNC class of Huaihua Zhuhua Manufacturing Co., Ltd. in 2024 "National Worker Pioneer".
Huaihua Daily all-media reporter Yang Zhiwei correspondent Wang Jiyun Dai Yuquan
Huaihua Zhuhua Manufacturing Co., Ltd. CNC class part of the staff
A few days ago, the results of the 2024 National May Day Labor Award, Medal and National Worker Pioneer were announced, and Huaihua Zhuhua Manufacturing Co., Ltd. was awarded the honorary title of "National Worker Pioneer" by the All-China Federation of Trade Unions.
"We deeply understand the importance of innovation, and meticulousness and excellence are our pursuit in our work." Wu Lianghai, the technical leader of the CNC class of Huaihua Zhuhua Manufacturing Co., Ltd., said that since the establishment of the team, hundreds of technological innovations have been completed, technical problems have been overcome, and in the competition with foreign products, the style of Chinese manufacturing has been demonstrated with ingenuity.
In 2004, Zhuhua Manufacturing Company opened a mold production line. The predecessor of the CNC class, the mold processing and design modeling team, came into being, which undertook the heavy responsibility of manufacturing the core parts of rail transit and construction machinery. The company's showroom is equipped with dozens of exclusively produced products, which are widely used in the field of transportation rail and engineering construction at home and abroad. Among them, Wu Lianghai is most proud of the support seat produced for the Fuxing high-speed railway.
"Originally, the support seat has always been supplied by the Japanese, but the problem with the welded parts is that it is easy to have some cracks after a long time." Wu Lianghai said that China's high-speed rail has attracted the world's attention, but the production of support seats has relied on imports for many years. The Japanese manufacturer insisted that the support seat could only be assembled by mechanical welding, and it was not possible to forge a complete part in one go.
Can it be formed at one time, can it be of better quality, and can it break the monopoly of the import market? The CNC class of Zhuhua Company organized capable forces to carry out technical research. From production casting to mold processing, after optimizing the process and technological innovation, the final production of a seamless and seamless support seat, the cost is reduced by one-third, the mileage is increased by 30%, and the imported products are successfully replaced.
Ou Anping (first from left) discussing mechanical operation with his colleagues
The employees of the CNC class take the initiative to be advanced in their work. In 2018, employee Ou Anping participated in the national competition approved by the Ministry of Human Resources and Social Security, jointly sponsored by the China Foundry Association and the China Employment Technology Training and Guidance Center of the Ministry of Human Resources and Social Security, and won the seventh place in the country and the first place in Hunan Province in the molding (core) steel casting resin sand group. In 2023, Ou Anping was successively awarded the "May Day Labor Medal of Hunan Province" and the honorary title of "Wuxi Craftsman", and was also elected as the representative of the 17th National Congress of the Hunan Provincial Trade Union. Ou Anping and Wang Haowei were awarded the title of outstanding master-apprentice pair in the "pairing" activity of model workers and craftsmen in Hunan Province.
The CNC class has the courage to innovate, and has carried out more than 100 technical transformations and process innovations, overcome more than 40 technical problems, and solve more than 30 difficult processing technologies for castings. It pioneered the chemical composition ratio technology of cast steel in front of the simple furnace, and obtained 5 utility model patents such as "Pouring Mold for Eccentric Hemispherical Valve" and "Pouring Mold for Support Seat". Responsible for the application technology of FRP mold making process in special-shaped shell wall thin parts, which is used for the production of multi-functional pump control valves, by reducing the weight of control valve castings, reducing production costs, improving economic benefits, and greatly improving market competitiveness. This technology has created an output value of more than 50 million yuan and created benefits of more than 2 million yuan. The team not only strives to be the pioneer in promoting the development of the enterprise, but also achieves 20 years without personal injury accidents.
In 2020, Zhuhua Manufacturing won the production order of hydraulic control valves for the Wudongde Hydropower Station construction project on the Jinsha River with an investment of more than 100 billion yuan. In the production process, in order to ensure product quality, the CNC class adopts the process of precision casting production synchronized with European environmental protection standards, and strictly tests the material through tensile, impact and other mechanical properties, and checks at all levels to ensure that the quality of the factory products reaches 100%. The technology of the CNC team has been truly used in the "big country heavy weapon".