Results 21 to 30 of about 161,737 (96)
, 2015 综述了连铸中间包通道式感应加热与精炼技术,介绍了国外发展概况,简要比较了等离子体加热与该技术的技术差异,简明地介绍其加热和去除夹杂物的工作机理,着重介绍了国内独立研发、具有自主知识产权的中间包八字型通道式感应加热和精炼技术及其特点,并以2个钢厂的应用案例验证了该技术的可靠性、可操控牲和安全性 ...
李爱武 +5 more
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, 2015 采用全溶实验、短期与长期浸出实验,对电炉精炼渣中重金属元素的浸出行为进行研究,并通过SEM与XRD分析其机理. 结果表明,电炉精炼渣中Ba元素短期浸出浓度最高值为52.10 mg/L,超出国家污水重金属排放标准;Ni元素短期浸出浓度最高值为0.025 mg/L,V元素长期浸出浓度最高值为0.176 mg/L,超出生活饮用水卫生标准.
李会泉 +6 more
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Physical Simulation of Inclusion Removal and Slag Entrapment in 210 t RH Refining Process
Teshugang, 2011 Effect of steel works 210 t RH refining treatment time, driving gas flow rate, vacuum, number of stomata and immersion depth on inclusion removal and the effect of bottom-blowing pattern and gas flow rate on amount of slag entrapment have been studied by
迟云广 +4 more
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Al-Si合金熔渣精炼过程中Al和B在渣金两相间的迁移与分配规律
, 2018 在1500℃下将Al-Si合金与CaO-SiO_2-Al_2O_3熔渣混合精炼,考察了渣金比、精炼时间对体系中元素Al和B在渣金两相间分配的影响,并解析了这两种元素的迁移过程。结果表明:熔渣40%CaO-40%SiO_2-20%Al_2O_3和60%Al-Si合金在渣金质量比为5时,精炼硅中B含量由302.74×10~(-6)降至23.37×10~(-6)。元素Al和B在渣金两相间的迁移规律基本一致,呈现出明显的阶段性特征。合金中Al元素在精炼10 min内相间迁移最为剧烈 ...
葛治 +5 more
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Optimization of Process Operation and Power Supply Scheme for 150 t LF
Teshugang, 2013 The 150t ladle furnace (LF) refining main steels are beam steels for car and wheel steels etc, with production flow sheet 150 t converter-150 t LF-slab casting-continuous rolling. With decreasing the 150t LF average initial slag basicity form 3.
王义芳 +4 more
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, 1987 本文将从冶金反应工程学角度出发，考虑精炼过程的传递现象，将精炼过程的共性问题抽象化、理论化、模型化，对精炼过程末期[C]-[O]关系进行模拟研究，通过本课题的研究，对进一步认识精炼过程的特性、为命中炼钢终点需要加入脱氧剂的量，以及终点控制、预测操作条件（如冷却剂的加入量、供氧速度等），为精炼装置提供依据 ...
张洪平
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Teshugang, 2018 With the thermal compensation technology including using CO secondary burning, 3.5% ~5.0% Si high carbon ferrochromium and alloys baking, the reduced product SiO, decreases by 800 kg to increase the deoxidation ability of silicon； with controlling AOD ...
王百顺 +5 more
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Teshugang, 2015 With using Factsage thermodynamic calculation and test in laboratory, the effect of basicity (R)2.5 -5.4, Al2O3(14%-30% ) and MgO (3%-15% ) content on mineralogical phases precipitation in CaO-Al2O3-SiO2-MgO quaternary refining slag for bearing steel ...
唐国章 +3 more
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, 2015 在1550℃下将CaO-SiO_2-Al_2O_3三元渣与Sn-Si合金混合精炼,降温熔析去除工业硅中的杂质B,考察了渣系光学碱度及合金组成对B去除的影响及作用机理. 结果表明,渣系光学碱度增大,BO_(1.5)的活度系数降低明显,增加了B的分配系数,即增强了精炼效果. Sn-Si合金中Sn比例从0增至70%时,B在渣相与合金相间的分配系数从3.16提高至13.8,硅中B含量最低为0.89×10~(-6),最高除硼率为93.3%;当Sn比例大于30%时,合金粘度大幅降低,B的分配系数提高 ...
葛治 +5 more
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Teshugang, 2013 The effect of argon blowing rate (150 ~450 IVmin) and argon blowing location at ladle bottom (ladle center to 3/4 radius of submerged snorkel) on average flow rate at metal-slag interface in 130 t single snorkel furnace with desulphurizing top slag is ...
芮其宣, 成国光
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