Heating apparatus for a welding operation and method therefor

Details Heating apparatus for a welding operation and method therefor Heating apparatus for a welding operation and method therefor

B - Operations, Transporting

23

K

B23K 31/02 (2006.01) B23K 13/01 (2006.01)

Patent

CA 2328260

A heating apparatus (10) and method for pre-weld heat treating, welding and post-weld heat treating a superalloy article in a single enclosure (12) while avoiding oxidation of the article. The enclosure (12) is preferably equipped with a one-way valve (32) that permits the escape of gases, but otherwise seals the enclosure (12) to prevent the ingress of air during welding and heat treatment as a result of thermal gradients induced when the article is inductively heated. To provide access to the article and a device (20) used to weld the article, the enclosure (12) is equipped with gloves (30) by which the welding device (20) and the article can be manipulated while a nonreactive atmosphere is fully maintained within the enclosure (12) and the article is inductively heating.

Appareil de chauffage (10) et méthode pour le traitement thermique pré-soudage, le soudage et le traitement thermique post-soudage d'un article de superalliage dans un seul boîtier (12) tout en évitant l'oxydation de l'article. Le boîtier (12) est de préférence équipé d'un clapet anti-retour (32) qui permet l'échappement de gaz, mais qui autrement rend étanche le boîtier (12) pour empêcher la pénétration d'air lors du soudage et du traitement thermique en raison des gradients thermiques induits lorsque l'article est chauffé par induction. Pour fournir un accès à l'article et à un dispositif (20) utilisé pour souder l'article, le boîtier (12) est équipé de gants (30) grâce auxquels le dispositif de soudage (20) et l'article peuvent être manipulés, pendant qu'une atmosphère non réactive est entièrement maintenue dans le boîtier (12) et l'article est chauffé par induction.

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