Results 11 to 20 of about 161,737 (96)
, 1997 采用三相交流工频等离子体冶炼含钽铌的炼锡炉渣，获得钽铌铁合金；再将钽铌铁合金经焙烧、酸煮、除钨、脱硅、水洗、烘干等工序，得到（Ta＋Nb）2O5品位达43．4％的中间产品。此工艺能简化从炼锡炉渣中提取钽铌的工序，提高钽铌品位和直收率，减少“三废”，利于环境治理 ...
曹永仙, 徐永香
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, 2018 采用Si-Cu合金精炼与CaO-SiO2-CaCl2造渣精炼相结合的方法对冶金级硅进行精炼,通过多种分析方法考察了合金造渣过程、渣剂添加剂和合金成分对金属杂质铁（Fe）、铝（Al）和钙（Ca）去除效果的影响。结果表明,提高Si-Cu合金中的Cu含量可以有效增加Cu3Si相在Si中的含量,合金造渣过程会产生多而弥散的合金相,造渣后的金属杂质Fe、Ca聚集在Si-Cu合金的Cu3Si相中。在渣剂中添加CaCl2助溶剂可有效提高金属杂质Fe、Al和Ca的去除率。此外,随着Si-Cu合金中Cu含量的增加 ...
李洋 +7 more
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, 2021 郴桂矿厂是清代湖南最重要的铜、铅、锌等币材原料产地。该矿厂使用一种先炼铅、再炼铜的铅铜共生矿冶炼技术,史料中称其为"铅渣炼铜"。2016年,桂阳桐木岭遗址发现了多金属冶炼遗迹、遗物,为复原郴桂矿厂铅渣炼铜技术提供了重要的实物证据。文章通过对铅渣炼铜的史料记载、桐木岭炼铅遗存以及炼铅炉渣的研究,判断郴桂矿厂采用的技术是:先用铁还原法在竖炉中炼铅,将冶炼得到的冰铜和铅分离开,最后用冰铜炼铜。该技术不同于其他铜铅共生矿冶炼技术,是铁还原法炼铅、冰铜炼铜两种技术的结合,为清代郴桂矿厂特有,在冶金史上系首次发现 ...
周文丽 +3 more
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Teshugang, 2021 In order to ensure that the refining slag has better deoxidation and absorption ability of inclusions, the five top slag modifiers are used to carry out industrial tests on the top slag of the converter tapping ladle of IF steel.
胡巍 +7 more
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A Study on Melting Temperature of Pentatomic Refining Slag Series
Teshugang, 2010 A study on melting temperature of CaO-Al2O3-SiO2-MgO-CaF2refining slag has been carried out by using orthogonal experimental method. With variance analysis and significance criterion it is obtained that the optimum ingredient of the pentatomic refining ...
李士琦 +5 more
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A Test on Desulphurization of 12CaO•7Al2O3 Based Refining Slag
Teshugang, 2011 The pre-melting process of12CaO·7Al2O3and the desulphurizing ability of12CaO·7Al2O3based refining slag containing 10%-20%BaO, 2%-6% MgO, 1%-3%Li2Oand(12CaO·7Al2O3)/SiO2=8～10on low carbon steel liquid (% ：0.23C, 1.29Mn, 0. 44Si, 0. 026P, 0.023S, 0.04Mo, 0.
曹余良 +4 more
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A Study on Desulphurization of Bearing Steel GCrl5 with LF Bearing BaO Refining Slag Series
Teshugang, 2012 The effect of ingredient of LF refining slag series (/% : 28. 75 ~ 58. 05CaO, 12. 50 〜32. 43A12O3, 0 ~ 15BaO, 8 ~ 20SiO2, 6MgO, 10CaFz) on desulphurization of high carbon chromium bearing steel GCrl5 (/% : 0. 99C, 1. 45Cr, 0. 034S) has been studied by Mo
杨吉春 +3 more
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, 2011 为了开发多功能单嘴真空精炼炉的脱硫工艺,在80 t RH基础上改造的80 t多功能单嘴真空精炼炉进行了37炉次的冶炼超低碳超低硫钢种的脱硫试验。试验结果表明:多功能单嘴真空精炼炉具有较好的脱硫效果,最高脱硫率可达到81.2%,钢液中最低w(S)可降低至10×10-6。研究了脱硫操作过程中脱硫剂、脱氧剂加入量及钢包渣厚对80 t多功能单嘴真空精炼炉脱硫效果的的影响。推荐的多功能单嘴真空精炼炉较优的脱硫工艺参数为:CaO-CaF2渣系的脱硫剂中石灰和萤石加入量分别为5.0～6.0和3.0～3.5
张永亮 +4 more
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Effect of Embedding Arc Refining Slag on Heat up Rate of Molten Steel in a 60t Ladle Furnace
Teshugang, 2005 Based on research of refining slag series by 55~75kg experimental ladle furnace (LF),the commercial production experiment of embedding are refining slag in a 60t ladle furnace has been carried out using three kind of slag:S1 slag-63.6~70.0 lime,22.7～25 ...
刘润藻 +3 more
doaj
, 2016 在1500℃下将Al-Si合金与CaO-SiO_2-Al_2O_3熔渣复合精炼,考察了渣金质量比、精炼时间及渣系碱度对硅中B和P的去除效果,并分析了去除机理.结果表明,40%CaO-40%SiO_2-20%Al_2O_3(ω)熔渣和60%Al-Si(ω)合金在渣金质量比为5时,B和P的去除率分别为92.28%和91.14%.杂质去除过程主要集中在精炼的前30min,除B和P的传质系数分别为1.69×10~(-5)和1.47×10~(-5)m/s ...
葛治 +4 more
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