一种无污染脱氧方法

将脱氧剂装入氧离子传导的固体电解质ＺｒＯ２（ＭｇＯ）管中，并用高温电子导电材料封堵料口。利用固体电解质电池短路脱氧的原理。金属液中的氧在氧化锆管外表面获取电子转变为氧离子，并通过固体电解质进入氧化锆管。在内表面与脱氧剂结合生成脱氧产物，产生的自由电子通过电子导电材料传递到外表面与其积累的正电荷中知，从而消除了阻碍氧离子继续迁移的电场，使该过程能够持续下去，直至达到脱氧平衡。由于脱氧产物保留在氧化锆

AN UNPOLLUTED DEOXIDATION WAY

Using a deoxidizer placed into a magnesia-stabilized zirconia (MSZ) tube and an electronic conductor sealed the open of the MSZ tube, the deoxidation units are prepared. According to the principle of the short-circuited deoxidation of solid electrolyte cell, oxygen atoms in the melt obtain electrons and transform into oxygen ions at the melt/electrolyte interface, oxygen ions diffused through the electrolyte to the electrolyte/deoxidizer interface react with the deoxidizer and produce deoxidation product. The electrons produced transfer through the electronic conductor to the melt/electrolyte interface and neutralize the positive charges accumulated, the electronic field stopping the diffusion of oxygen ions is destroyed. 0So the deoxidation process will go on until the deoxidation equilibrium. Deoxidation product remained inside deoxidation unit is removed together, so this deoxidized way will not pollute the melt and is a novel method which is experimentally verified to be effective. The rate and limit of deoxidation are got, and a model is established and simplified.