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    • 9. 发明授权
    • 용강탈린제
    • 熔钢talline
    • KR1019910006007B1
    • 1991-08-09
    • KR1019880017931
    • 1988-12-30
    • 주식회사 포스코재단법인 포항산업과학연구원
    • 이계영김정식신영길
    • C21C7/064
    • A diphosphorization agent for steel consists of 50-80 wt.% converter slag, 20-50 wt.% solvent which is selected one or multi-phase from 3NaF.AlF3, boric acid, and sodium hexafluorosilicate, and dolomite which is applied from 1 to 1.5 times as much as solvent. A solvent has a lower melting temperature below 1100 deg.C and increases the fluidity of slag. It also increases diphosphorization efficiency by activating calcium carbonate and iron oxide. Dolomite is effective to diphosphorization. It decreases reactivity refractory and slag and inhibits erosion of refractory by increasing the amount of magnesium oxide in slag. It has advnatages of promoting operation efficiency and yield of molten steel, and reducing amount of diphosphorization agent.
    • 用于钢的二次磷化剂由50-80重量%的转炉渣,20-50重量%的溶剂组成,其选自3NaF.AlF3,硼酸和六氟硅酸钠的一相或多相,以及从1 至溶剂的1.5倍。 溶剂的熔融温度低于1100摄氏度,并增加了炉渣的流动性。 还可以通过活化碳酸钙和氧化铁来提高二次磷化效率。 白云石有效地进行二次磷化。 通过增加炉渣中氧化镁的含量,降低反应性耐火材料和炉渣,抑制耐火材料的侵蚀。 有利于提高钢水的运行效率和产量,并减少二次磷化剂的用量。