Abstract: An onsite steel rail laser processing engineering vehicle, including a laser processing power engineering vehicle and a laser processing cart, the laser processing power engineering vehicle is connected to the laser processing cart; the onsite steel rail laser processing engineering vehicle further comprises a transport mechanism disposed on the laser processing power engineering vehicle; through movement and rotation, the transport mechanism transports the laser processing cart into the laser processing power engineering vehicle or transports the laser processing cart out from the laser processing power engineering vehicle and places it on rails.
Type:
Grant
Filed:
January 24, 2018
Date of Patent:
October 20, 2020
Assignees:
WUHAN NRD LASER ENGINEERING CO., LTD., HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventors:
Xiaoyan Zeng, Qianwu Hu, Pinghua Guo, Xiaoming Xu, Ming Jiang, Dengzhi Wang, Chongyang Li, Li Meng
Abstract: The disclosure discloses a method for reinforcing a rail by laser and auxiliary heat source efficient hybrid cladding. The laser and the auxiliary heat source simultaneously apply on a region to be cladded of a rail surface. The laser serves as a main heat source to enable simultaneous and rapid fusion of an added metal powder and partial substrate material in the rail surface to form a molten pool. The auxiliary heat source moves with the laser heat source in the same direction at the same speed, and performs synchronous preheating and/or post-heating on the laser molten pool, the heat-affected zone and the surface layer of the rail substrate to reduce the temperature gradient, thereby reducing the cooling rate, and avoiding martensite transformation and cracking in the heat-affected zone.
Type:
Application
Filed:
January 18, 2019
Publication date:
June 25, 2020
Applicants:
Wuhan Hivalue Intelaser Ltd., Huazhong University of Science and Technology, WUHAN NRD LASER ENGINEERING CO.,LTD
Inventors:
Xiaoyan ZENG, Li MENG, Dengzhi WANG, Qianwu HU, Pinghua Guo, Xiaohua XU, Li NIU
Abstract: The invention discloses an on-line laser processing vehicle for a rail, including a chassis, a vehicle body, a steer-control chamber and a container; the steer-control chamber includes a console, a CCD monitoring system and a drive-switching operating system; a dual driving system and switching mechanism, which with a process-operation driving system, a conventional operation driving system and a switching mechanism, is disposed in the container; the process-operation driving system operates to provide driving power for the laser processing vehicle during laser processing, and precisely controls moving speed and distance of the laser processing vehicle; the switching mechanism operates to implement switching between the conventional operation driving system and the process-operation driving system.
Type:
Grant
Filed:
June 13, 2013
Date of Patent:
June 14, 2016
Assignees:
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, WUHAN NRD LASER ENGINEERING CO., LTD
Inventors:
Xiaoyan Zeng, Qianwu Hu, Chongyang Li, Yinlan Zheng, Min Du