B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 1/18 (2006.01) F27D 1/12 (2006.01) F28F 3/12 (2006.01) F28F 11/02 (2006.01) F27D 9/00 (2006.01)
Patent
CA 2377689
A method for plugging a hole, particularly a hole provided in a cooling element, in which method in a hole (9) formed in a piece essentially made of mainly copper, for instance in the housing element (2) of a cooling element (1), there is arranged a plug (8) mainly made of copper. Between the side surface (11) of the plug (8) and the inner surface (13) of the hole, there is arranged brazing agent (10) with a melting temperature lower than that of the pieces to be joined together, and the junction area between the plug (8) and the piece, such as the housing element (2) of the cooling element, is heated at least up to the melting temperature of the brazing agent or to the vicinity thereof, whereafter the junction area is cooled. The invention also relates to a cooling element manufactured according to said method.
La présente invention concerne un procédé d'obturation d'un trou, en particulier d'un trou pratiqué dans un élément de refroidissement. Dans ce procédé on place un bouchon (8) essentiellement constitué de cuivre dans un trou (9) formé dans une pièce constituée essentiellement de cuivre, par exemple dans l'élément de logement (2) d'un élément de refroidissement (1). On place, entre la surface latérale (11) du bouchon (8) et la surface intérieure (13) du trou, un agent de brasage (10) dont la température de fusion est inférieure à celle des deux pièces à joindre ensemble, puis on chauffe la surface de jonction entre le bouchon (8) et la pièce, telle que l'élément de logement (2) de l'élément de refroidissement, à température au moins égale, ou au voisinage de celle de fusion de l'agent de brasage, après quoi la jonction est refroidie. L'invention concerne aussi un élément de refroidissement fabriqué selon ce procédé.
Polvi Veikko
Suortti Tuija
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Outokumpu Oyj
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