FIELD: construction.
SUBSTANCE: group of inventions relates to railway track structure, namely, to rail joint, method of its production and equipment for production of said joint. Rail joint comprises ends of rails and two milled straps. Rails ends are connected by aluminothermic welding by intermediate casting method. Rail side surfaces and lateral surfaces of butt joint weld are arranged level with each other. Mold for welding rails comprises two half-molds. Shape of internal surfaces of half-molds coincides with shape of side surfaces of rail. When making butt joint, casting mold is installed level with side surfaces of rail, in butt gap molten metal is poured, casting mold is removed and rail straps are installed.
EFFECT: higher strength of rail butt joint.
3 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MOULD FOR ALUMINOTHERMAL WELDING OF RAILS | 2012 |
|
RU2559388C2 |
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|
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|
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|
RU2423212C1 |
