PRODUCTION OF CASTING PIG IRON

PURPOSE:To prevent the generation of bad shaped appearance of a mold pig iron by using steam having the specific value or lower of droplet diameter, cooling with atomized water spreading and making the specific temp. or lower of super heat at near surface layer of molten pig iron in the mold before...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SATO TADASHI, SUZUKI HIDEYUKI, KAMAKARI HIROYUKI, ABE YUKIMASA
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent the generation of bad shaped appearance of a mold pig iron by using steam having the specific value or lower of droplet diameter, cooling with atomized water spreading and making the specific temp. or lower of super heat at near surface layer of molten pig iron in the mold before cooling with much water spraying. CONSTITUTION:In this invention, the super heat at near the surface layer of molten pig iron in the mold before cooling with water spreading is made to be >=50 deg.C. In the case of the general casting pig iron, this can apply the well- known cooling method, but in the case of high Si pig iron having >=2.0% Si, as this solidifying temp. is low, the case, which can not cool to the prescribed temp., is developed. In this case, in this invention, by colliding atomized water particles having very fine, such as