C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 8/06 (2006.01) B23K 35/40 (2006.01) C21D 9/60 (2006.01) C21D 9/08 (2006.01)
Patent
CA 2245046
The invention relates to a process and device for manufacturing metal tubing, namely a flux-cored wire for welding, containing filling components, including at least one recrystallization annealing stage effected by high frequency induction heating, preferably at a frequency of at least 10 kHz. The invention also relates to the use of the flux-cored wire thereby fabricated for an electric arc welding process, such as TIG, MIG, MAG, with arc submerged or vertical under slag.
L'invention a trait à un procédé et à un dispositif de fabrication d'un tube métallique, notamment un fil fourré de soudage, contenant des éléments de remplissage, comprenant au moins une étape de recuit de recristallisation réalisée par chauffage par induction à haute fréquence, de préférence à une fréquence d'au moins 10 kHz. L'invention concerne également l'utilisation du fil fourré ainsi obtenu pour la mise en oeuvre d'un procédé de soudage à l'arc électrique, tel un procédé de soudage TIG, MIG, MAG, à l'arc submergé ou vertical sous laitier.
Astier Denis
Bonnet Christian
La Soudure Autogene Francaise
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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