A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
RAIL OF RAILWAY WITH PASSENGER AND FREIGHT MIXED TRAFFIC AND MANUFACTURING METHOD THEREOF
In view of the low comprehensive strength and toughness of pearlitic rail manufactured by existing techniques, the invention provides a manufacturing method for rail of railway with passenger and freight mixed traffic, including the following steps: a. hot roll steel billet into rail, with a final rolling temperature of 900-1000° C.; b. blow a cooling medium to the top surface of railhead, the two sides of railhead and the lower jaws on two sides of railhead when the center of top surface of rail is air-cooled to 800-850° C.; and then air-cool the rail to the room temperature after the center of top surface of rail is cooled to 520-550° C. By controlling the composition of steel and adopting a two-stage accelerated cooling, the invention is able to produce a rail with better performance which is suitable for railway with passenger and freight mixed traffic.
RAIL OF RAILWAY WITH PASSENGER AND FREIGHT MIXED TRAFFIC AND MANUFACTURING METHOD THEREOF
In view of the low comprehensive strength and toughness of pearlitic rail manufactured by existing techniques, the invention provides a manufacturing method for rail of railway with passenger and freight mixed traffic, including the following steps: a. hot roll steel billet into rail, with a final rolling temperature of 900-1000° C.; b. blow a cooling medium to the top surface of railhead, the two sides of railhead and the lower jaws on two sides of railhead when the center of top surface of rail is air-cooled to 800-850° C.; and then air-cool the rail to the room temperature after the center of top surface of rail is cooled to 520-550° C. By controlling the composition of steel and adopting a two-stage accelerated cooling, the invention is able to produce a rail with better performance which is suitable for railway with passenger and freight mixed traffic.
RAIL OF RAILWAY WITH PASSENGER AND FREIGHT MIXED TRAFFIC AND MANUFACTURING METHOD THEREOF
HAN ZHENYU (author) / ZOU MING (author) / GUO HUA (author) / YUAN JUN (author)
2019-04-11
Patent
Electronic Resource
English
| European Patent Office | 2023
Rail freight traffic assignment
| Elsevier | 1980
| European Patent Office | 2022
| European Patent Office | 2015