When producing the rare earths Fe-Cr-Al alloy by electroslag remelting method, the optimum quantity of rare earths added to three phase lining electroslag furnace is 0.5%.

电渣双联法生产稀土铁铬铝合金时，稀土在三相有衬电渣炉中的最佳加入量为0.5%。

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Electric Arc Furnace (EAF) used in metallurgy industry often causes unbalanced three-phase load power, and therefore generates severs flicker to the grid, which seriously impact the power quality.

在冶金工业中使用的电弧炉可引起电网三相负荷不平衡，产生谐波引起电流闪变，严重影响电网电能质量。

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