Metal working – Method of mechanical manufacture – Impeller making
Patent
1991-09-19
1992-08-04
Cuda, Irene
Metal working
Method of mechanical manufacture
Impeller making
2940218, 156 94, 156305, B21K 300
Patent
active
051347741
ABSTRACT:
An anchoring process for use in a hydraulic electric facility turbine structure (1) includes, allowing for anchoring of a turbine liner wall (8) to a backing wall (9) while the liner wall (8) is in place and during repairs. The process includes positioning of apertures (20) within the liner wall (8). Second apertures (22) coaxial with the apertures (20) in the liner wall (20) are drilled into the backing wall (9) sufficient for purposes of embedding a reinforced steel bar (44) in a manner so as to appropriately support the liner wall (8). After the apertures (20, 22) had been formed, an adhesive material (42) in an unactive state in inserted into the aperture (20) of the liner wall (8) and into the secondary aperture (22) of the concrete backing wall (9). The steel reinforcing bar (44) is then inserted through the aperture (20) of the liner wall (8) and into the secondary aperture (22) of the backing wall (9). The reinforcing bar (44) causes the adhesive material (42) to be released and activated, and provide adhesion between the reinforcing bar (44) and the interior surfaces of the secondary aperture (22). The reinforcing bar (44) is then cut off an appropriate distance into the liner wall (8). A weld overlay material (48) is then applied to the reinforcing bar (44) within the liner wall aperture (20). The overlay material (48) is applied so that the material fills up the aperture (20) in a manner such that the material is flush with the interior surface of the liner wall (8). In this manner, the reinforcing bar (44) is appropriately welded to the liner wall (8) and provides a rigid and stable interconnection of the liner wall (8) to the concrete backing wall (9).
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Arc Plan, Inc.
Cuda Irene
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