Method of cladding tubes
AssigneeExploweld AB
InventorIngemar Persson
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Abstract
A method of cladding an outer tube (1) with an inner tube (2), wherein the inner tube is made of a corrosion-resistant material, for instance. The inventive is characterized by placing a number of explosive charges (3) in mutually spaced arrangement in the inner tube (2), in contact with or essentially in contact with the inner surface of the inner tube; filling the inner tube with a pressure-transmitting medium (4), preferably water; and detonating all explosive charges (3) simultaneously, so as to obtain a local metallurgical bond (6) at the regions of the explosive charges and so as to cause the inner tube (2) to expand into abutment with the outer tube (1).
Claims22
A method of cladding a metal outer tube (1) with a metal inner tube (2), comprising:
- placing a number of explosive charges (3) in a mutually spaced-apart arrangement within the inner tube (2), essentially in contact with and adjacent the inner surface of said inner tube;
- filling the inner tube with a pressure-transmitting medium (4);
- and detonating all explosive charges (3) simultaneously, so as to obtain a local metallurgical bond (6) at the regions of said explosive charges and so as to cause the inner tube (2) to expand into abutment with the outer tube (1).
Dependencies are inferred from the claim text.