Under-Rail Rubber Pads Manufacturer for Daqin Railway
In 2022, Anyang Railway Equipment Co., Ltd supplied 444,297 pieces of under-rail rubber pads (10*149*190mm, 10*149*185mm, 10*149*190mm) to Daqin Railway.
Datong-Qinhuangdao Railway, referred to as Daqin Railway, is a national railway Class I freight railway connecting Datong City, Shanxi Province, and Qinhuangdao City, Hebei Province in North China. A coal transport channel trunk line railway.
The Daqin Railway is also the first railway in my country to operate heavy-duty unit trains, and also the first double-track electrified heavy-duty coal transportation line in China. It is also one of the freight railways with the highest modernization level in China.
With a total length of 653 kilometers, the Daqin Railway is the main channel for transporting coal from west to east in China. It has created many records such as the highest density of heavy-duty trains, the largest transportation capacity, the fastest increase in transportation, and the best transportation efficiency for a single railway in the world. Over the past 30 years of operation, the Daqin Railway has transported 7.8 billion tons of coal in total. On the Daqin Railway, on average, a heavy-haul train departs every 12 minutes, with an annual traffic volume of up to 450 million tons, setting a record for the world’s single railway with the highest density of heavy-duty trains, the largest volume, the fastest increase in traffic, and the transportation efficiency The highest and many other world records.
Especially since the national railway launched a special action to ensure electricity and coal supply on June 20, 2022, the Daqin Railway has transported 120 million tons of coal so far, a year-on-year increase of 10.2%, setting a record for the same period since the line was built. The stability of the supply chain has played a positive role.
In 2022, the Daqin Railway will be intensively repaired in autumn from September 28 to October 22. Line equipment maintenance will be carried out across the line from 9:00 to 12:00 every day. 29,000 construction workers and 131 sets of construction machinery will be invested to complete the track change, Pillow replacement, turnout replacement, screen cleaning, catenary replacement, signal renovation and other operations. A total of 128.7 km of rails were replaced in sections, 82.8 km of ballast beds were cleaned, 22,882 sleepers were replaced, and 18 groups of turnouts were replaced in groups, all of which improved the performance of Daqin Railway equipment in an all-round way.
In 2022, Anyang Railway Equipment Co., Ltd supplied 444,297 pieces of under-rail rubber pads (10*149*190mm, 10*149*185mm, 10*149*190mm) to Daqin Railway.
The main function of the rubber pad is to buffer the high-speed impact vibration generated when the vehicle passes the rail, protect the roadbed and sleepers, and electrically insulate the railway signal system. The elastic cushion materials of heavy-duty fastener systems used at home and abroad include rubber materials, plastic materials, thermoplastic elastomer materials and microcellular foam materials. Among them, rubber materials are easy to age and have a short service life, while plastic materials have high rigidity and dynamic mechanical properties. Poor, while thermoplastic elastomer materials and microfoam materials have excellent flexibility at room temperature and low temperature, and excellent resistance to flex cracking. High elasticity and resistance to stress relaxation, creep performance, more used in elastic cushions.
The elasticity of the track is mainly provided by the granular ballast bed and the under-rail cushion, and the under-rail cushion plays the role of shock absorption and isolation. For the concrete under-rail foundation, the good elasticity of the under-rail cushion is more important. The fasteners with rail underlayment used in my country’s heavy-duty railways mainly include type I height-adjusting fastening systems, type II fastening systems, type III fastening systems, WJ-l2 fastening systems, and TP7 type fastening systems. The elastic cushion under the rail is bounded by the iron backing plate, and is divided into the elastic cushion on the iron tie plate and the elastic cushion under the iron tie plate. An elastic cushion applied between the steel rail and the concrete sleeper, which can directly buffer and absorb the load on the concrete sleeper, and at the same time can improve the elasticity of the elastic cushion under the rail.
