C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 6/00 (2006.01) C21D 6/02 (2006.01) C22C 38/02 (2006.01) C22C 38/44 (2006.01) C22C 38/52 (2006.01) C22C 38/58 (2006.01) H01L 23/495 (2006.01) C21D 8/02 (2006.01)
Patent
CA 2410456
The invention concerns a method for making a Fe-Ni strip whereof the chemical composition comprises, by weight: 36 % <= Ni + Co <= 43 %; 0 % <= Co <= 3 %; 0.05 % <= C <= 0.4 %; 0.2 % <= Cr <= 1.5 %; 0.4 % <= Mo <= 3 %; Cu <= 3 %; Si <= 0.3 %; Mn <= 0.3 %; the rest being iron and impurities, the alloy having an elastic limit Rp0.2 more than 750 Mpa and a distributed elongation Ar more than 5 %. The alloy is optionally recast under slag. The strip is obtained by hot-rolling above 950 ·C, then cold-rolling and carrying out a hardening treatment between 450 ·C and 850 ·C, the hardening heat treatment being preceded by a reduction of at least 40 %. The invention is useful for making integrated circuit support grids and electron gun grids.
Procédé de fabrication d'une bande en alliage Fe-Ni dont la composition chimique comprend, en poids: 36 % <= Ni + Co <= 43 %, 0 % <= Co <= 3 %; 0,05 % <= C <= 0,4 %; 0,2 % <= Cr <= 1,5 %; 0,4 % <= Mo <= 3 %; Cu <= 3 %; Si <= 0.3 %; Mn <= 0.3 %; le reste étant du fer et des impuretés, l'alliage ayant une limite d'élasticité Rp0,2 supérieure à 750 MPa et un allongement réparti Ar supérieur à 5 %. L'alliage est éventuellement refondu sous laitier. On obtient la bande par laminage à chaud au dessus de 950 ~C, puis laminage à froid et on effectue un traitement de durcissement entre 450 ~C et 850 ~C, le traitement thermique de durcissement étant précédé d'une réduction d'au moins 40 %. Utilisation pour la fabrication de grilles support de circuits intégrés et grilles de canons à électrons.
Cozar Ricardo
Reydet Pierre-Louis
Imphy Ugine Precision
Robic
LandOfFree
Hardened fe-ni alloy for making integrated circuit grids and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hardened fe-ni alloy for making integrated circuit grids and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardened fe-ni alloy for making integrated circuit grids and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1998911