Title:
METHOD FOR CLADDING TO STRENGTHEN AND TOUGHEN WELDED JOINT OF STEEL RAIL AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/284186
Kind Code:
A1
Abstract:
A method for cladding to strengthen and toughen a welded joint of a steel rail (1) and an application thereof. The method comprises: removing a steel rail structure having a preset depth in a heat-affected region (1.2) and/or a weld region (1.3) of a welded joint of a steel rail (1) so as to form a groove-shaped region to be filled (2); in the region to be filled (2), cladding a reinforcing layer (3) having the same wear resistance as a base material of the steel rail, and filling the region to be filled (2); and performing machining to enable the welded joint of the steel rail (1) to have an appearance that is basically the same as the original appearance of the steel rail (1), so as to complete cladding to strengthen and toughen the welded joint of the steel rail (1). According to the described method, it can be ensured that the difference in wear resistance between the heat-affected region (1.2) of the welded joint of the steel rail (1) and the base material of the steel rail meets requirements, so as to achieve the purpose of synchronous wear of a joint region and the base material of the steel rail, reduce the end-breakage rate of the welded joint of the steel rail (1), prolong the service life of the steel rail (1), and improve the utilization rate of railway resources.
Inventors:
ZENG XIAOYAN (CN)
LIU XU (CN)
HU QIANWU (CN)
MENG LI (CN)
WANG DENGZHI (CN)
LIU XU (CN)
HU QIANWU (CN)
MENG LI (CN)
WANG DENGZHI (CN)
Application Number:
PCT/CN2021/128970
Publication Date:
January 19, 2023
Filing Date:
November 05, 2021
Export Citation:
Assignee:
WUHAN HIVALUE INTELASER LTD (CN)
WUHAN NRD LASER ENG CO LTD (CN)
UNIV HUAZHONG SCIENCE TECH (CN)
WUHAN NRD LASER ENG CO LTD (CN)
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
C23C24/10; B23K9/18
Foreign References:
| CN113584971A | 2021-11-02 | |||
| CN112853345A | 2021-05-28 | |||
| CN108456879A | 2018-08-28 | |||
| US20140166766A1 | 2014-06-19 |
Attorney, Agent or Firm:
WUHAN HUAZHIYU INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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