溶融金属処理方法

Treatment of molten metal

Abstract

(57)【要約】 【目的】 置き注ぎ法による溶融金属処理を能率的且つ 安全に行なう方法を提供する。 【構成】 溶融金属処理用容器内に、予め金属処理剤を 入れ、その上に溶融金属を注入して溶融金属を処理する 置き注ぎ法による溶融金属処理方法において、溶融金属 処理剤を鉄、ニッケル又はアルミニウムを主成分とする 固体金属壁で被覆した小片状で用いる。
PURPOSE: To stably treat molten metal with a small quantity of a treating agent and to economically obtain a high quality product by coating a metal treating agent with a solid metallic wall, incorporating it into a vessel as small piece state and pouring the molten metal on this piece. CONSTITUTION: Beforehand, a metal treating agent such as Mg alloy, ferro- silicon alloy, carbide, etc., is charged into the vessel for molten metal treatment and a molten metal such as steel, Al alloy, etc., is poured on this agent to execute refining treatment. In the molten metal treating method of the above pouring method, the molten metal treating agent adopts the small pieces of about 0.1-100cm 3 coated with a solid metal wall mainly consisting of iron, Ni or Al. At this time, this small pieces of metal treating agent is preferably regulated to the sp. gr. of about 4.5-8.2g/cm 3 bulky density so as to be substantially floated up on the molten metal. COPYRIGHT: (C)1996,JPO

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