Method of manufacturing bimetallic tubes

Details Method of manufacturing bimetallic tubes Method of manufacturing bimetallic tubes

B - Operations, Transporting

21

K

26/155

B21K 21/00 (2006.01) B23K 1/002 (2006.01) B23K 13/00 (2006.01) F16L 55/00 (2006.01)

Patent

CA 1198267

ABSTRACT OF THE DISCLOSURE A method of manufacturing bimetallic tubes is disclosed. In this method, after an inner tube is inserted into an outer tube, the resulting tube assembly is heated, while pressurizing the inside of the inner tube with a gas, in the presence or absence of a solder material. When using no solder material, the materials of the inner and outer tubes are so selected that a thermal expansion coefficient of the inner tube is smaller than that of the outer tube.

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