Pipe joints or couplings – Molded joint – With root repellent
Patent
1982-09-30
1986-06-03
Scanlan, Jr., Richard J.
Pipe joints or couplings
Molded joint
With root repellent
285 15, 285370, 285397, 291573R, 29421E, 228 25, 22826318, F16L 1308
Patent
active
045925771
ABSTRACT:
A sealable multimetallic sleeve for a rapid repair of a degraded tube caused by a detrimental chemical attack on the outside surface of the tube within and in a vicinity of a tube sheet in a steam generator, and the method for sealably inserting the sleeve in the degraded tube spanning the region of the degradation. The sleeve includes an inner member with equivalent mechanical properties of the degraded tube and an outer member metallurgically bonded to the inner member and resistive to caustic intergranular chemical attack causing tube degradation. The sleeve has an expanded portion at one end for positioning in the tube within the tube sheet and a multiplicity of grooves in and adjacent to the other end of the sleeve and braze material contained in the grooves.
REFERENCES:
patent: Re30802 (1981-11-01), Rogers, Jr.
patent: 3411198 (1968-11-01), Berman et al.
patent: 3562887 (1971-02-01), Schroeder et al.
patent: 3912148 (1975-10-01), Johnson
patent: 3962767 (1976-06-01), Byerley et al.
patent: 4028789 (1977-06-01), Loch
patent: 4195390 (1980-04-01), Amen
Ayres Paul S.
Feldstein Joel G.
Fu Tzerong
Stark Louis E.
Edwards Robert J.
Mai Robert C.
Scanlan, Jr. Richard J.
The Babcock & Wilcox Company
LandOfFree
Sleeve type repair of degraded nuclear steam generator tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sleeve type repair of degraded nuclear steam generator tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sleeve type repair of degraded nuclear steam generator tubes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1229635