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“Huayu” tells you why the subway is quiet
[Abstract]:
Open speech: On July 30th, the city held the city's private economic development and opening-up mobilization meeting and entrepreneur conference, which commended the top 100 private enterprises in the city in 2017. These private enterprises have fought for brilliant achievements in the process of accelerating economic and social development in Zhangzhou, and have written wonderful development stories. From now on, the newspaper opened the "Top 100 Private Enterprises in Zhangzhou City" column, reporting on the innovative practices and development achievements of these enterprises, providing a sample of fresh development for more enterprises, helping more enterprises in Zhangzhou to develop innovatively and greenly. The road to high quality development. stay tuned.
Traveling to a big city may be inevitably a fast, quiet, safe and comfortable means of transportation - the subway. But have you ever thought about how smooth and quiet the subway is? The shock absorbers produced by Zhangzhou Huaying Railway Equipment Co., Ltd. can help the rails to reduce the "hard hit" and make the rails pass through residential areas, schools, hospitals and other places quietly. It is reported that this "shock absorber" has been successfully applied in the construction of urban rail transit facilities such as Guangzhou No. 6 Line, No. 9 Line, Lanzhou Line 1, and Xi'an Line 4.
Into the enterprise workshop, I saw a double-layer non-linear shock absorber composed of metal, rubber and nylon. Zhou Jinguo, the person in charge of the company, said that the double-layer non-linear shock absorber is an upgraded version of the ordinary fastener. The product is installed under the rail, just like a person wearing a shock-absorbing shoe. When the train is rolling the track, the rubber Reduced by pressure, thus achieving the purpose of noise reduction and earthquake reduction, and increasing the comfort of residents and passengers around the railway.
Located in Dongguang, “Chuzhou Huaying” has a railway fastener for more than ten years. In 2017, it achieved an output value of 500 million yuan and a main business income of 450 million yuan. It is one of the top 100 private enterprises in Zhangzhou City in 2017. Its products are mainly used in urban rail transit and general rail transit construction projects, which can reduce noise by at least 8 decibels. The experiment proves that even after 3 million fatigue tests, the shock absorber of "Huawei Secret" has no damage and cracking.
Thanks to such excellent performance, Huaying products are exported to Thailand, Myanmar, Vietnam, India and Malaysia. They are also suppliers of Siemens Germany, Forslow and Lod. In China, the products cover 26 cities, except for the ordinary rail transit such as Beijing-Shanghai Line, Beijing-Kowloon Line, Beijing-Guangzhou Line, Longhai Line and Qinghai-Tibet Line, and urban subway and light rail in Beijing, Tianjin, Nanjing, Shanghai and Guangzhou. All of them have a full range of fastener products produced by Zhangzhou Huasheng. Now they have completed the supply of various specifications of 35,000 kilometers of national railway and urban subway transportation lines.
Under the background of innovation and development, what is the secret of “China’s secret system”? In Zhou Jinguo's view, continuously improving the technological content of products, from the mature products with low technology content to the high value-added technology new products, not only can obtain more profit space, but also help the development of high-end equipment manufacturing industry. To this end, in 2013, Huasheng grasped the high-end market opportunities and relied on the relevant technology of the China Railway Science Research Institute to produce an upgraded version of the fasteners – a double-layer nonlinear shock absorber. In 2015, on the basis of the original factory area, they invested another 500 million yuan to build a double-layer non-linear damping equipment project, which was put into production in the same year.
In order to improve the detection capability of product vibration and noise, the company invested 3 million yuan to build a laboratory and purchased relevant test equipment. The 50-year-old Wang Ruquan is the head of the laboratory, and he records various data in this book. “The raw materials purchased from Huaigang, Shagang and other steel groups need to detect the content of harmful elements. The content of sulfur and phosphorus is required to be less than 0.02% and 0.05% respectively.” Wang Ruquan said that from raw materials entering the factory to product molding, a total of testing is required. 26 times.
In recent years, this company has independently developed new intercity subway fasteners and applied for 8 patents through upgrading and adjusting the original process technology and equipment. Now it has obtained 4 patents. In Wang Ruquan’s impression, there were only seven companies producing such ordinary railway fasteners nationwide more than a decade ago, and Hua Tuo was one of them. After more than ten years, Hua Tuo has become one of the few enterprises in the country to produce urban rail transit damping equipment. It has always been based on the spirit of innovation and the “artisan” attitude.
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Put on "damping shoes" for the rails