Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region
US6227282A · kind A · utility
8Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1997 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for the aluminothermic welding of rails, the aluminothermically produced steel being poured into a refractory mold surrounding the rail ends which are to be joined, and alloying additives being contacted with that part of the steel which runs out of the reaction crucible and forms the weld in the rail head region, wherein the alloying with the alloying additives is carried out after the completion of the aluminothermic reaction and separation of the steel from the slag via the diverting plug in the mold, and the overflow in the is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.