Process for producing porous iron metal body

Details Process for producing porous iron metal body Process for producing porous iron metal body

C - Chemistry, Metallurgy

25

D

C25D 1/08 (2006.01) C25D 3/56 (2006.01) C25D 5/50 (2006.01)

Patent

CA 2203087

A process, particularly a continuous process, for industrially producing a high-quality inexpensive porous iron metal while preventing the conventional rusting problem which process comprises coating the surface of a conductive porous base material by iron electroplating, removing the base material, and then reducing the coating. The iron electroplating was conducted in an acid iron plating bath which contains at least one from acid aluminum compound and/or at least one acid titanium compound, using an anode which contains at least either of aluminum and titanium and has a surface area not smaller than 1/3 of and not larger than that of the base material. The reduction is conducted by a two-step heat treatment for improving the iron structure and for softening.

Un procédé, et particulièrement un procédé en continu, pour produire industriellement un fer poreux peu coûteux de haute qualité tout en prévenant les problèmes de corrosion usuels, lequel procédé comprend le revêtement de la surface d'une matière de base poreuse conductrice par électro-déposition de fer, l'élimination de la matière de base et la réduction du revêtement. L'électro-déposition est réalisée dans un bain de galvanoplastie acide qui contient au moins un composé d'aluminium acide et/ou au moins un composé de titane acide, en utilisant une anode qui contient au moins de l'aluminium ou du titane et dont l'aire surfacique n'est pas inférieure au tiers de celle de la matière de base ni supérieure à cette dernière. La réduction est réalisée par un traitement thermique en deux étapes pour améliorer la structure du fer et pour adoucissement.

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