D. CASING AND SHELL
REPAIRS
- 1. Machine eroded seal fits; weld,
or install inserts and remachine to proper size.
- 2. Replace inserted seal strips with
new parts and machine for correct clearance.
- of-roundness, distortion by welding
and/or machining.
- 4. Repair keyways, bolting holes, nozzle
faces and other critical surfaces.
- 5. Weld repair turbine case and stress
relief
- Machine gibs and keys for proper
nozzle alignment
- Weld repair inlet pipes
- Stress relief anlet pipes
- Straightena dn align inlets
- Fixture to aling inlets during stress
relief
- Machine bell seal fits
- Machine new threads for bell seal nut
- Grind out and clear all cracks in
steam chest
- Weld repair to fill ground ou areas
- Stress relief after weld repairs
- Machine nozzle sealing face to maintain
original axial location
- Machine radial nozzle fit
- Replace seals and machine to proper
diameter and restore seal clearance to factory specifiactions
|
