Aluminothermic mixture

Details Aluminothermic mixture Aluminothermic mixture

B - Operations, Transporting

23

K

44/3, 78/60

B23K 23/00 (2006.01)

Patent

CA 2222840

The invention relates to an aluminothermic mixture consisting of a finely particulate base portion of iron oxides and aluminum as well as metallic additives, a master alloy, namely a ferrochromium alloy consisting of (in % by weight) C: 0.1 to 20 Si: 2 to 40 Cr: 5 to 80 and iron with impurities resulting from manufacture and, if appropriate, other alloying elements, being added in a quantity of from 5 to 50% by weight, relative to the base portion, as metallic additive.

L'invention porte sur un mélange aluminothermique consistant en une fraction de base de fines particules d'oxydes de fer et d'aluminium, ainsi que d'additifs métalliques, soit un alliage mère, et plus précisément un alliage de ferrochrome constitué de (en % en poids) 0,1 à 20 de C, 2 à 40 de Si, 5 à 80 de Cr et de fer, avec des impuretés provenant de la fabrication et, selon le cas, d'autres éléments d'alliage, ajoutés à raison de 5 à 50 % en poids, par rapport à la fraction de base, comme additifs métalliques.

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