Welding of pipeline to enhance strain performance

B - Operations – Transporting – 23 – K

Patent

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B23K 31/02 (2006.01) B23K 9/04 (2006.01) B23K 33/00 (2006.01)

Patent

CA 2631867

A method and apparatus utilized in forming weld joint is described. In the method, a strength weld between two members is formed by a first welding process and a first weld metal. Then, one or more strain welds are formed by depositing a second weld metal adjacent to the strength weld using a second welding process. The strain welds are configured to form a weld joint having a specific minimum height and width to handle tensile strain to a specific strain capacity.

L'invention concerne un procédé et un appareil utilisés pour former des joints soudés. Dans le procédé, on forme une soudure de résistance mécanique entre deux éléments par une première opération de soudage et avec un premier métal de soudage. Ensuite, on forme par une deuxième opération de soudage une ou plusieurs soudures de contrainte en déposant un deuxième métal de soudage en position adjacente à la soudure de résistance mécanique. Les soudures de contrainte sont configurées de manière à former un joint soudé qui présente une hauteur et une largeur minimales spécifiques de manière à résister aux contraintes de traction jusqu'à un niveau spécifique de contrainte.

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