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1. 发明授权

US4429207A Method for welding railroad rails and means therefor 失效
标题翻译：铁路轨道焊接方法及其手段
公开(公告)号：US4429207A
公开(公告)日：1984-01-31
申请号：US335812
申请日：1981-12-30
申请人： Jack H. Devletian , William E. Wood , Robert B. Turpin , Milton R. Scholl
发明人： Jack H. Devletian , William E. Wood , Robert B. Turpin , Milton R. Scholl
IPC分类号： B23K25/00
CPC分类号： B23K25/00
摘要： A method for electroslag welding of railroad rails under field conditions employs a special mold bottom member and a special guide tube structure. The mold bottom member includes a metallic insert which is supported by heat-insulating means, e.g. ceramic material in a cavity in a bottom copper block. The ceramic effectively heat insulates the insert from the copper block so when arcing takes place at the start of the welding, the heat is retained by the insert, which forms part of the weld. The guide tube structure is flared toward the bottom and guides two continuously fed electrodes. The structure includes wing-like members near its bottom end. The bottom of the structure is designed wth sharp corners, so that when arcing takes place some of the guide structure metal melts to form a uniform layer of molten metal, which aids in the melting of flux into a slug bath of uniformly distributed temperature.
摘要翻译：铁路轨道电渣焊接方法采用特殊的模具底部构件和特殊的导向管结构。模具底部构件包括金属插入件，该金属插入件由隔热装置支撑。陶瓷材料在底部铜块中的腔中。陶瓷有效地使插件从铜块绝热，因此在焊接开始时发生电弧时，热量由插入件保持，该插入件形成焊缝的一部分。引导管结构朝向底部向外扩张，并引导两个连续馈电的电极。该结构包括靠近其底端的翼状构件。结构的底部设计成尖锐的角部，使得当发生电弧时，一些导向结构金属熔化形成均匀的熔融金属层，这有助于熔剂熔化成均匀分布温度的熔池。

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