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一、概述钢包吹氩精炼是近年来发展起来的一种新的钢水炉外精炼法,这种方法是根据Sieverts(雪浮茨)平方根定律:[90H]=KH(PH_2)~(1/2),[90N]=KN(PN_2)~(1/2)以及Fichsche(番海雪)第一定律: W=ητ(DF)/(δv)K((PH_2)或(PN_2))~(1/2)的原理,在钢包底部通过透气砖吹入氩气形成大量气泡,从而增加了有效脱气面积。在氩气泡形成之初,气泡内氢、氮分压等于零。相对氩、氮来讲气泡中形成一个真空,钢水中的氩、氮不断地向氩气泡中扩散,压气泡中氢、氮分压也
First, an overview of ladle argon purging is developed in recent years, a new method of molten steel furnace refining, this method is based on the Sieverts square root law: [90H] = KH (PH_2) ~ (1/2 ), [90N] = KN (PN_2) ~ (1/2) and the first law of Fichsche: W = ητ DF / δv K (PH_2) or (PN_2)) ~ / 2) principle, at the bottom of the ladle through the blown into the argon gas bubbles to form a large number of bubbles, thereby increasing the effective degassing area. At the beginning of formation of argon bubble, the partial pressure of hydrogen and nitrogen in the bubble equals to zero. Relative to argon, nitrogen to form a bubble in the vacuum, molten steel in the argon, nitrogen continue to diffuse into the argon bubble, the bubble pressure of hydrogen, nitrogen partial pressure is also