Metal fusion bonding – Process – Plural diverse bonding
Patent
1992-07-31
1993-09-28
Heinrich, Samuel M.
Metal fusion bonding
Process
Plural diverse bonding
228189, 228254, 285 55, 285286, 285416, B23K 3100
Patent
active
052480801
ABSTRACT:
An article for joining in end-to-end relationship two or more tubular articles such as pipe sections, and particularly pipe sections coated on their inner and outer surfaces with an electroless metal such as nickel and adapted for passing corrosive liquids and solids includes a ring-shaped member having a meltable coating, on its surfaces intended to engage the ends of the tubular articles and the inner surface of the tubular articles at their junction, and having a flange on its outer circumference that is of a shape and size adapted to engage and seat upon the inner surfaces of the tubular articles to be joined in end-to-end relationship. Welding material is placed in a chamfered region formed at the outer edge of two tubular articles at their ends, joining the two tubular articles in end-to-end relationship with the ring-shaped member between them, and melting the coating into the junction between those ends, and into the interface between the flange surface and the inner surfaces of the tubular articles.
REFERENCES:
patent: 2125324 (1938-08-01), Williams et al.
patent: 2224145 (1940-12-01), Dugan et al.
patent: 3188117 (1965-06-01), Press et al.
patent: 3223821 (1965-12-01), Langdon
patent: 4326117 (1982-04-01), Kanne, Jr. et al.
patent: 4765529 (1988-08-01), Turner
Metals Handbook Ninth Edition, vol. 5, "Electroless Nickel Plating", pp. 219-243, copyright 1982.
Heinrich Samuel M.
Stapleton Technologies, Inc.
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