FIELD: mechanical engineering.
SUBSTANCE: proposed method comes to preparation of two rings to be machined separately to form radial recesses. Said radial recesses are made in form of profile of stator stage blades and are suitable for receiving the blades. Then adhesive cloth tape is placed over outer and inner diameters of rings and paste-like solder material is injected into recesses. Injection pressure monitored to prevent rise of solder material higher than limit of edges of radial recesses pointed to steam flow channel. Rings with fitted-blades are subjected to brazing in furnace vacuum.
EFFECT: reduced time taken for manufacture and assembly of stator diaphragm.
6 cl, 3 dwg
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Authors
Dates
2006-01-20—Published
2001-04-18—Filed