鋼液添加高蒸氣壓鎂的方法及其裝置Method of adding high vapor pressure magnesium to steel liquid and apparatus for performing the method

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

14/791,518

專利證號

US 9,670,559 B2

專利獲證名稱

鋼液添加高蒸氣壓鎂的方法及其裝置Method of adding high vapor pressure magnesium to steel liquid and apparatus for performing the method

專利所屬機關 (申請機關)

國立成功大學

獲證日期

2017/06/06

技術說明

本發明係有關於一種鋼鐵冶金的方法，特別是指在提供一種向鋼液添加高蒸氣壓金屬鎂的方法及其裝置。所述的鎂添加裝置主要係由儲料桶、控制閥及本體所組成，該本體係輸送管、內嵌管及三通管所組成。所述方法是將鎂添加裝置放入管式爐內，將粒徑為0.5-2mm的純鎂粒裝入儲料桶，待輸送管組中下部溫度升溫到1120℃-1200℃後，將控制閥打開，以0.5-1.5g/min的速度將純鎂粒加入輸送管組。同時，打開氬氣調節閥，以0.5-1.5L/min的流量通入氬氣，將在輸送管中的鎂蒸氣載入鋼液。因此，本發明具有使鎂穩定、安全地加入鋼液，且鎂的收得率高、不引入合金元素、生產成本低、鋼液中鎂分佈均勻等優點。 An apparatus of adding high vapor pressure magnesium to a steel liquid, includes a magnesium additive device and a tube furnace. The magnesium additive device includes a storage barrel, a conveying pipe, a control valve, and an insertion tube. A method of adding high vapor pressure magnesium to a steel liquid, includes placing the magnesium additive device in the tube furnace, and delivering pure magnesium particles into the storage barrel. When the temperature at the mediate lower position of the conveying pipe is increased to reach a preset value, the control valve is opened to pour the pure magnesium particles into the conveying pipe to form a magnesium vapor, and an argon regulating valve is opened to introduce the argon into the conveying pipe so as to add the magnesium vapor to a steel liquid by carrying of the argon.

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