B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 13/10 (2006.01) B22C 3/00 (2006.01) B22D 1/00 (2006.01) B22D 11/111 (2006.01)
Patent
CA 2474273
The invention relates to a powder which is used to protect spin cast moulds for cast-iron pipes. The inventive product comprises: an inoculant metal alloy; optionally, mineral powders; and a metal which is highly reducing and volatile at the temperature of the liquid iron. According to the invention, the use of said products prevents mould fouling and improves the surface condition of cast-iron pipes.
L'invention a pour objet un produit en poudre pour la protection des moules de coulée centrifugée des tuyaux de fonte, comprenant un alliage métallique inoculant et éventuellement des poudres minérales, ainsi qu'un métal fortement réducteur et volatil à la température de la fonte liquide. L'utilisation des produits selon l'invention évite l'encrassement des moules et améliore l'état de surface des tuyaux de fonte.
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
Pechiney Electrometallurgie
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