Metal fusion bonding – Process – With shaping
Patent
1980-11-06
1983-11-22
Ramsey, Kenneth J.
Metal fusion bonding
Process
With shaping
291571R, 228104, B23K 2802
Patent
active
044164092
ABSTRACT:
A method and apparatus of manufacturing a metal casing, particularly for accessories, such as steel casings, and preferably gate valves which can be employed in installations requiring high safety measures and testing with testing heads, the casings having large nominal widths and particularly usable in nuclear reactors and the like, comprising, permanently deforming a bloom into a tubular body having one open end and an opposite closed end, deforming at least a portion of the tubular body to form at least two diametrically opposed sides thereof which are planar on their interior and exterior surfaces, forming a port in at least one of the planar ends having a diameter less than that of the diametrically opposed sides to leave an approach area around the port and connecting a pipe connection to the port by a single welding seam which can be tested with a testing head which can approach the seam in the approach area. A casing made in accordance with the method is also disclosed.
REFERENCES:
patent: 2656143 (1953-10-01), Fantz
patent: 3769673 (1973-11-01), Siepmann
patent: 3975810 (1976-08-01), Siepmann
Balz Josef
Kollmann Bernd
Muller Erwin
Petzolt Gert
Risse Friedrich
Ramsey Kenneth J.
Thyssen Industrie AG
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