Method for fabricating a steam turbine diaphragm
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United States of America Patent
Stats
-
Apr 9, 1985
Grant Date -
N/A
app pub date -
Mar 21, 1983
filing date -
Mar 21, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Blades in the steam path of a steam turbine diaphragm are assembled into slots in full circular bands and are structurally bonded thereto by welding. After stress relief, the bands are each separated into two 180 degree pieces by line cuts which pass between adjacent blades. The bands are then welded to semicircular rings having planar mating surfaces. The welding of the rings to the bands is performed with minimum welding without concern for whether the welds enter the interface sufficiently far to contact the blades themselves.
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