Method of forming weld bead of pure copper on ferroalloy...

Details Method of forming weld bead of pure copper on ferroalloy... Method of forming weld bead of pure copper on ferroalloy...

B - Operations, Transporting

23

K

327/108, 327/109

B23K 35/30 (2006.01) B23K 9/04 (2006.01) B23K 15/00 (2006.01) B23K 26/00 (2006.01) B23K 26/34 (2006.01)

Patent

CA 2039657

In forming a weld bead of pure copper on a ferroalloy base material by laying a powder of copper and melting the powder by a high density energy source such as laser beams, TIG arc or electron beams, the powder of copper is beforehand mixed with a powder of an auxiliary metal having a higher melting point than pure copper. In order to ensure the substantial purity in copper of the weld bead, the powder mixture should not include more than 16 wt% nickel.

Avant de former un cordon de soudure de cuivre pur sur une matière à base de ferro-alliage en déposant une poudre de cuivre et en faisant fondre la poudre à l'aide d'une source de haute densité d'énergie comme les faisceaux laser, l'arc à électrode de tungstène ou les faisceaux d'électrons, la poudre de cuivre est mélangée avec une poudre d'un métal auxiliaire ayant un point de fusion plus élevé que le cuivre pur. Pour assurer la pureté substantiellement élevée du cuivre dans le cordon de soudure, le mélange de poudre ne devrait pas inclure plus de 16 % en poids de nickel.

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