Steel rail thermit welding method
The invention provides a steel rail thermit welding method which comprises the following steps: S1, adjusting the ends of two steel rails to be welded, and aligning the ends; s2, the welding end is subjected to sand mold clamping; s3, a crucible is installed on the sand mold, welding flux is placed...
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| creator | FANG XINCHANG GUO MINGHUA YANG GAOWEI JING LEWEI YANG SHUO SHENG YUXING LI YOUBING LI GANG |
| description | The invention provides a steel rail thermit welding method which comprises the following steps: S1, adjusting the ends of two steel rails to be welded, and aligning the ends; s2, the welding end is subjected to sand mold clamping; s3, a crucible is installed on the sand mold, welding flux is placed in the crucible, and the sand mold is preheated; s4, after reaction is conducted for preset time, the sand mold is dismantled, and standing cooling is conducted on the welding position; s5, the welding position cooled in the step S4 is subjected to overlap pushing operation; s6, polishing operation is conducted on the welding conducting position; and S7, the welding quality is detected. According to the exothermic welding method for the steel rail, on the premise of conforming to related specifications, construction can be rapidly carried out, in a low-temperature environment, the steel rail is preheated, ultrasonic flaw detection is carried out on the welding heads, the welding quality is ensured, and it is guaran |
| format | Patent |
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According to the exothermic welding method for the steel rail, on the premise of conforming to related specifications, construction can be rapidly carried out, in a low-temperature environment, the steel rail is preheated, ultrasonic flaw detection is carried out on the welding heads, the welding quality is ensured, and it is guaran</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM |
| title | Steel rail thermit welding method |
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