| 摘要 |
A tube joint ( 16 ) for joining dissimilar metal sections ( 12, 14 ) of a superheater or reheater tube ( 10 ) is formed using a hot isostatic press process applied to at least two different metals. A first end of the tube joint ( 16 ) is formed from a first metal which has substantially the same chemical composition as a metal used to form one section ( 12 ) of the superheater or reheater tube ( 10 ), and a second end of the tube joint is formed from a second metal which has substantially the same chemical composition as a metal used to form the other section ( 14 ) of the superheater or reheater tube ( 10 ). Because the ends of the tube joint ( 16 ) are made of substantially the same metal as the respective tube sections ( 12, 14 ) to which they attach, the welds ( 18 ) may be performed using a standard fusion welding process, such as arc welding, and the need for dissimilar metal welding (DMW) is eliminated.
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