Rail grinding is now the most effective measures to eliminate corrugation. In addition there are the following measures can slow the progression of corrugation: the elimination of continuous welding rail joints, improve ride tracks; improving rail material with high strength wear-resistant rails, heat treatment process to improve quality, eliminate rail residual stress; improve track quality , 38kg heavy rail, improve rail elastic, and continuous uniform vertical and horizontal elasticity; to maintain a smoother curve direction, high set reasonable, oiled side outer rail operation; wheel-rail system should have enough resistance so on. Approximately every meter of rail weight in kilograms, divided into crane rail (crane rail), heavy rail and light rail three kinds: ① crane rails into QU120, QU100, QU80, QU70 of four, the material is generally steel, Hefei heavy rail, the largest single weight is QU120 up to 118kg / m. ② heavy rail. According to the steel grades are divided into: general rail manganese, copper carbon steel rail, steel rail of high silicon copper, copper rails, rail manganese, silicon rail and so on. There are 38,43,50kg three. There are also a small number of 45kg for the rail line, rail steel, has been planned on the large volume and high speed rail lines with the 60kg. GB2585- 81 sets out of 38 ~ 50kg / m rail technical conditions, 50kg heavy rail, its size and code, such as shown in Table 6-7-10. In 2007, China promulgated a new standard GB 2585-2007, in addition to 38 ~ 50kg / m, the new increase of 60kg / m heavy rail and 75kg / m of heavy machinery rail. Hefei rail | Fair Commerce Bo | rail models offered by the Hefei exhibition Bo Trading Company. Hefei rail | Fair Commerce Bo | heavy rail model Hefei Show Bo Trading Company (www.hfzhanbo.com) (www.hfzhanbo.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Mr. Huang.