Metal working – Method of mechanical manufacture – Repairing
Reexamination Certificate
2006-05-23
2006-05-23
Nguyen, George (Department: 3726)
Metal working
Method of mechanical manufacture
Repairing
C029S402010, C029S402060, C029S402090, C029S402130, C029S402160, C029S402180, C228S227000, C228S229000, C228S232000, C164S103000
Reexamination Certificate
active
07047612
ABSTRACT:
This invention relates generally to a method for repairing a casting, and more specifically to a method of repairing a casting by pouring melted filler material into a damaged portion of the original casting. Damaged cast metal components, such as a cylinder head of an internal combustion engine are repaired by preheating the component to a first preheat temperature. The damaged area of the casting is then heated to a higher temperature using a torch and melted filler material is poured into the casting. The torch is used to maintain the temperature of the melted material for thirty seconds to two minutes. The temperature of the filler material is then cooled using compressed air.
REFERENCES:
patent: 1777531 (1930-10-01), Peterson
patent: 2120525 (1938-06-01), McKerihan
patent: 2632944 (1953-03-01), Kittelson
patent: 2751671 (1956-06-01), Welch et al.
patent: 3192618 (1965-07-01), Altgelt
patent: 3246392 (1966-04-01), Altgelt
patent: 3392435 (1968-07-01), Swick et al.
patent: 3445914 (1969-05-01), Altgelt
patent: 3449816 (1969-06-01), Swick et al.
patent: 4068111 (1978-01-01), Klumpes
patent: 4878953 (1989-11-01), Saltzman et al.
patent: 4918805 (1990-04-01), Liszka et al.
patent: 4967458 (1990-11-01), Rosenberg et al.
patent: 5193272 (1993-03-01), Wortmann et al.
patent: 5284442 (1994-02-01), Peterson
patent: 5427305 (1995-06-01), Nishimura
patent: 5678753 (1997-10-01), Stauder
patent: 5802716 (1998-09-01), Nishimura et al.
patent: 5897801 (1999-04-01), Smashey et al.
patent: 6109505 (2000-08-01), Malie et al.
patent: 6422295 (2002-07-01), Larsson et al.
patent: 6491207 (2002-12-01), Smashey et al.
patent: 1174772 (1998-03-01), None
“The SRZ Welding Process”, SRZ—Part 1, Issue 3, Aug. 2003, pp. 1-26.
“Chilled Sand Casting Process Delivers Higher Strength Components”, Modern Casting, Jan. 2003, pp. 46-47, Spada.
Bridges Michael D.
Chuzhoy Leonid
Kinney Christopher A
Leon Torres Jose F.
Post Stephen E
Caterpillar Inc.
Koehler Christopher M.
Nguyen George
Ririe Andrew J.
Smith James R.
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