B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 11/14 (2006.01) B23K 11/06 (2006.01) B23K 33/00 (2006.01)
Patent
CA 2140821
Two pieces of steel strip are welded together by a method employing projection resistance welding. A portion of one strip is formed with a series of aligned projections and arranged in superimposed relation with a portion of the other strip. The superimposed portions are moved through a welding zone located between upper and lower electrodes, typically a pair of rotatable welding wheels, through which a continuous electrical current flows. As the projections move into and through the welding zone, they are heated, flattened, melted and welded to the other of the two superimposed portions. The projections may be in the form of a continuous, elongated ridge (when the steel strips are uncoated) or in the form of spaced apart dimples (when the steel strips are coated or uncoated).
Cette invention concerne le soudage par résistance sur bossages de deux bandes d'acier. Une partie de l'une des bandes comporte une série de bossages alignés à superposer sur une partie de l'autre bande. Les parties superposées passent à travers une zone de soudage délimitée par des électrodes basse et haute généralement montées sur une paire de molettes de soudage traversées par un courant électrique continu. leur passage dans la zone de soudage, les bossages sont chauffés, aplatis, fondus et fusionnés à la partie superposée de l'autre bande d'acier. Les bossages peuvent prendre la forme d'une arête continue (bandes d'acier non revêtues) ou d'alvéoles espacées (bandes d'acier revêtues ou non).
Isg Technologies Inc.
Ridout & Maybee Llp
LandOfFree
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