B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 1/00 (2006.01) B23K 10/00 (2006.01) B23K 10/02 (2006.01) B23K 35/38 (2006.01)
Patent
CA 2271740
A method of brazing, with the use of a plasma forming device (1) having a non- consumable electrode (2), comprises the following steps of operation. A first gas is supplied to said plasma forming device (1). A plasma flow is formed of said first gas by applying a voltage between said electrode (2) and an electrical terminal (7). The plasma flow is directed towards a work piece (7). Braze material (10) to be melted by said plasma flow is provided. Furthermore, a second gas may be supplied for shielding said plasma flow from the surrounding atmosphere. At least one of said first and second gas comprises a principal inert component including at least argon and in a minor amount an active component.
Cette invention concerne un procédé de brasage, lequel fait appel à un dispositif générateur de plasma (1) qui possède une électrode réfractaire (2). Ce procédé consiste à envoyer un premier gaz dans le dispositif générateur de plasma (1), un flux de plasma étant formé à partir de ce gaz lorsque l'on applique une tension entre ladite électrode (2) et une borne électrique (7). Le flux de plasma est dirigé vers une pièce à usiner (7), tandis que l'on apporte du matériau de brasage (10) afin que celui-ci soit fondu par ledit flux de plasma. Il est également possible d'assurer l'alimentation en un second gaz permettant de protéger le flux de plasma de l'atmosphère ambiante. Le premier et/ou le second gaz comprennent un composant principal inerte qui contient au moins de l'argon, ainsi qu'une quantité moindre d'un composant actif.
Aga Aktiebolag
Ridout & Maybee Llp
LandOfFree
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