Method of manufacturing a control wheel for the high-pressure ro

Details Method of manufacturing a control wheel for the high-pressure ro Method of manufacturing a control wheel for the high-pressure ro

1986-02-24

1989-03-14

Ramsey, Kenneth J.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

228165, 228182, 228160, 228231, 291568R, 416213R, F01D 530

Patent

active

048121070

ABSTRACT:
A control wheel intended for welding onto the high-pressure rotor of a steam turbine is manufactured from a ring of individual blades welded together. For this purpose, all of the individual blades are provided with shrouds and root platforms having welding grooves formed therein. After being welded together into a ring, closed on all sides, the control wheel is annealed, machined and finally heat-treated.

REFERENCES:
patent: 1247400 (1917-11-01), Herr
patent: 2242308 (1941-05-01), Kroon
patent: 2392281 (1946-01-01), Allen
patent: 3182955 (1965-05-01), Hyde

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