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１ 试验条件及目的冶炼设备为北满特钢３０ｔＥＢＴ电弧炉与４０ｔＬＦ／ＶＤ精炼炉。工艺流程为：电炉熔化、氧化→偏心炉底出钢→钢包合金化→进ＬＦ炉→升温及精调成分→进ＶＤ炉→出炉、浇注。全系统的优化是根本目的，而系统内各单元的优化是服务系统优化的［１］，把Ｌ?
1 Test Conditions and Purposes The smelting equipment is North Mantek 30tEBT electric arc furnace and 40tLF / VD refining furnace. Process flow: electric furnace melting, oxidation → eccentric hearth tapping → ladle alloying → into the LF furnace → heating and fine tuning ingredients → into the VD furnace → baked, pouring. System-wide optimization is the fundamental purpose, and the optimization of each unit of the system is the optimization of service system [1], the L?