Direct flash butt welding connection method between high manganese steel frog or manganese steel rail and common steel rail

Application Number: 00103971
Application Date: 2000.03.18
Publication Number: 1370652
Publication Date: 2002.09.25
Priority Information:
International: B23K11/04;C21D9/04
Applicant(s) Name: Baoqiao Co., Ltd., Ministry of Railways
Address:
Inventor(s) Name: Xu Hongji;Zhang Wenzhong;Wang Jichang
Patent Agency Code: 33202
Patent Agent: di zhongbeng
Abstract The present invention relates to the welding technology for ultralong railway rail. Unlike available secondary welding mode including arc pre-welding and second medium adding welding, the direct method of the present invention adds no any medium material before direct flash welding between cleaned high manganese steel frog and steel rail. By means of selected optimized welding specfication parameters and proper technological measures, the present invention has high welded joint quality.