B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 35/30 (2006.01) C22C 45/04 (2006.01) B23K 35/02 (2006.01)
Patent
CA 2333630
This invention relates to brazing metals composed of cobalt-chromium-palladium- based alloys containing transition metals such as cobalt, nickel, tungsten, molybdenum and certain metalloids; and more particularly to multicomponent alloys containing cobalt, chromium, palladium, nickel, tungsten, molybdenum, boron, and silicon, which are especially useful for brazing metals at high temperatures to produce high strength, high oxidation and high temperature and corrosion-resistant brazements. Alloys of the present invention have a composition represented by the formula: CraNibWcPddSieBfCobal (plus incidental impurities), where the subscripts "a", "b", "c", "d", "e", and "f" are in atomic percent and "a" is in the range of about 15 and about 22, "b" is between about 0 and about 20, "c" is in the range of about 1 to about 5, "d" is between about 1 and about 10, "e" is in the range of about 5 and about 12, and "f" is between about 5 to about 12 and "bal" is the balance amount to total 100 percent.
Cette invention porte sur des métaux de brasage composés d'alliages de cobalt-chrome-palladium contenant des métaux de transition tels que cobalt, nickel, tungstène, molybdène et certains métalloïdes. L'invention porte plus particulièrement sur des alliages à plusieurs composants comprenant cobalt, chrome, palladium, nickel, tungstène, molybdène, bore et silicium, et qui sont notamment utilisés pour braser des métaux à hautes températures de façon à obtenir des brasages résistant à la corrosion et à des tensions élevées, à une forte oxydation et à une température élevée. Les alliages de cette invention ont une composition représentée par la formule: Cr¿a?Ni¿b?W¿c?Pd¿d?Si¿e?B¿f?Co¿bal?, ces alliages pouvant également avoir des impuretés, dans laquelle les indices "a", "b", "c", "d", "e" et "f" sont en pourcentage atomique et "a" est compris entre environ 15 et environ 22, "b" entre environ 0 et environ 20, "c" entre environ 1 et environ 5, "d" entre environ 1 et environ 10, "e" entre environ 5 et environ 12 et "f" entre environ 5 et environ 12, "bal" étant le reste du pourcentage total.
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
Metglas Inc.
LandOfFree
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