C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 9/00 (2006.01) B22D 11/06 (2006.01) C22C 38/16 (2006.01) C22C 38/20 (2006.01) C22C 38/22 (2006.01) C22C 38/28 (2006.01) C22C 38/32 (2006.01)
Patent
CA 2058437
An Fe-Cu alloy sheet manufactured by a thin plate continuous casting method so as to be used as a material of electronic and magnetic parts. The alloy sheet has an alloy structure of high uniformity which contains 20 to 90% Cu, 1 to 10% Cr, 0.05 to 10% Mo, and one or more of alloying elements selected from the group consisting of A~, Sc, Y, La, Si, Ti, Zr and Hf whose amount or total amounts are not less than a calcualtion value of the following equation and not more than 10%, the balance being essentially Fe: (see fig. I) wherein .alpha. = 1, .beta. = 51 - [% Cu] (in the case where Cu = 20 to 50%), .beta. = -19 + 0.4 [% Cu] (in the case where Cu = 50 to 90%). Boron and/or carbon take substantially the same effects as the above-mentioned elements such as A~.
L'invention se rapporte à une tôle en alliage de fer et de cuivre ayant une structure alliée à excellente homogénéité, qui est produite par la technique de fonte de tôles minces en continu et qui est utilisable comme matériau de composants électroniques et magnétiques. Cet alliage comprend 20 à 90 % de Cu, 1 à 10 % de Cr, 0 à 10 % de Mo et au moins un élément choisi dans le groupe composé de Al, Sc, Y, La, Si, Ti, Zr et Hf selon une quantité comprise entre la valeur calculée en fonction de la formule (I) et 10 % au maximum, le reste étant essentiellement composé de Fe, où alpha = 1, et beta = 51 - ¢% de Cu!, lorsque Cu = 20 - 50 % ou beta = -19 + 0,4 ¢% de Cu!, lorsque Cu = 50 - 90 %. Le bore et/ou le carbone peuvent également présenter un effet similaire à celui de l'aluminium mentionné ci-dessus et de tout autre matériau analogue.
Miyazawa Kenichi
Mizoguchi Toshiaki
Nishimura Satoshi
Ueshima Yoshiyuki
Gowling Lafleur Henderson Llp
Nippon Steel Corporation
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