摘要
The present invention describes a new inoculation process for inoculating a （gray or nodular） cast iron and especially a molten iron bath contained in a pouring device （trough, furnace or ladle） arranged between the outlet of a melting furnace and the line of molds by means of a transferred arc plasma torch having an anode partially submerged in the molten iron and a cathode located on the surface of the molten iron. The anode, or the cathode, or both, comprises graphite, preferably synthetic crystalline graphite, which supplies the nucleating additive to the cast iron alloy. The inoculation allows modifying the base metallographic structure, being able to affect the shape, size as well as the distribution of graphite in the metal matrix. Furthermore, the invention also describes an inoculation device to realise the inoculation procedure. The inoculation device comprises （i） a transferred arc plasma torch and （ii） a pouring distributor in which the plasma torch is arranged in the pouring distributor located before the line of molds.
2013-57.Inoculation process and device of gray or nodular cast iron Patent No.:MX2012006010Date of Patent:2013-05-30 Inventor(s):Jimenez Luis Cobos,et al Assignee:Fundacion Tecnalia res & Innovation[ES] The present invention describes a new inoculation process for inoculating a(gray or nodular) cast iron and especially a molten iron bath contained in a pouring device(trough,furnace or ladle) arranged between the outlet of a melting furnace and the line of molds by means of a transferred arc plasma torch having an anode
