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Title
Verfahren zur Aenderung der Gefuegestruktur von Metallschienen
Date Issued
1993
Author(s)
Patent No
1992-4231957
Abstract
The invention relates to a process for the modification of the local grain structure on the surface of a metal rail head in the solid phase. The modification in the grain structure takes place by applying energy only in a restricted local edge layer directly under the loaded contact and wear surfaces through radiation with high energy. As a result of this high energy radiation, the energy volume absorbed by the rail at the processing location is controlled in such a way that a precisely controlled cooling of the local grain structure is achieved in the edge layer at the point of processing.
Language
de
Institute
Patenprio
DE 1992-4231957 A: 19920924