Dissimilar metal connection and method for operating such a dissimilar metal connection
AssigneeGeneral Electric Technology GmbH
InventorsEwelina PRZYBYL, Roland BUETIKOFER, Guenter SCHMALZBAUER, Amitkumar SHUKLA
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Abstract
A dissimilar metal connection arrangement comprising a dissimilar metal connection between a first member made of a first metal and having a first end, and a second member made of a second metal different from said first metal with regard to its metallurgical behavior, and having a second end, wherein the first end of the first member is fixedly connected to the second end of the second member. An increased lifetime of the connection is achieved by arranging a heating means at said dissimilar metal connection for controlled heating of said dissimilar metal connection.
Claims16
A dissimilar metal connection arrangement comprising:
- a first member made of a first metal;
- a second member made of a second metal different from the first metal at least with regard to its metallurgical behavior;
- a dissimilar metal connection between the first member and the second member;
- and
- a heat source arranged at the dissimilar metal connection and configured to control heating of the dissimilar metal connection.
A dissimilar metal connection arrangement according to claim 7, wherein the heat source is powered by an electric current.
A dissimilar metal connection arrangement according to claim 8, wherein the heat source comprises a heating blanket.
A method for operating a dissimilar metal connection comprising:
- providing a dissimilar metal connection between a first member and a second member, wherein the first member is made of a first metal and the second member is made of a second metal different from the first metal at least with regard to its metallurgical behavior;
- providing a heat source arranged at the dissimilar metal connection;
- heating the first member and the second member from a first low starting temperature to a second high operating temperature;
- and
- preheating the dissimilar metal connection using the heating source before and/or during a transition of the first member and the second member from the first low starting temperature to the second high operating temperature.
Dependencies are inferred from the claim text.