Am improved method of welding austenitic steel pipes

Details Am improved method of welding austenitic steel pipes Am improved method of welding austenitic steel pipes

B - Operations, Transporting

23

K

B23K 9/09 (2006.01)

Patent

CA 2595087

Contemplated methods for welding stainless steel substantially improve welding speed and quality. Most typically, such attributes are achieved by welding a root pass using GMAW-Sm to thereby depositing a root, welding a hot pass using GMAW-P to thereby deposit additional weld metal onto the root, and by welding at least one of a fill pass and a cap pass using at least one of GMAW-P and FCAW.

L'invention concerne des procédés de soudure d'acier inoxydable améliorant sensiblement la vitesse et la qualité de soudure, et la plupart du temps de tels résultats sont atteints par soudure d'une passe d'amorçage avec GMAW-Sm permettant le dépôt d'amorçage, soudure de passe chaude avec GMAW-P pour le dépôt de métal de soudure additionnel sur l'amorçage, et soudure d'au moins une passe de remplissage et une passe de chape avec au moins GMAW-P ou FCAW.

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