| 钢包渣线用超低碳MgO-MA-C砖的研制与应用 |
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| 引用本文： | 薛军柱. 钢包渣线用超低碳MgO-MA-C砖的研制与应用[J]. 耐火材料, 2011, 45(2) |
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| 作者姓名： | 薛军柱 |
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| 作者单位： | 浙江自立股份有限公司,浙江上虞,312300 |
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| 摘 要： | 以高纯电熔镁砂、镁铝尖晶石微粉和纳米炭素为主要原料,分别加入总量为4%(质量分数)的硅粉、铝粉和硅粉-铝粉复合粉为防氧化剂,加入清洁的自来水混练均匀后,在500 t 摩擦压砖机上成型为碳质量分数小于1%的超低碳MgO-MA-C 标型砖试样.在对比各试样(包括普通MgO-C砖试样)的抗氧化性能、高温抗折强度、体积稳定性和抗渣性的基础上,对配方和生产工艺进行了优化,研制出了性能较好的超低碳(碳质量分数小于1%)MgO-MA-C砖.所研制砖在武钢200 t转炉钢包渣线区使用,平均使用次数达75次.
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| 关 键 词： | 钢包 渣线 超低碳 方镁石-尖晶石-碳砖 纳米碳 |
Development and application of ultra-low-carbon containing MgO-MgAl2O4-C bricks for ladle slag line |
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| Xue Junzhu. Development and application of ultra-low-carbon containing MgO-MgAl2O4-C bricks for ladle slag line[J]. Refractories, 2011, 45(2) |
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| Authors: | Xue Junzhu |
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| Affiliation: | Xue Junzhu Zili Industry & New Materials Co.,Ltd.,Shangyu 312300,Zhejiang,China |
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| Abstract: | Ultra-low-carbon containing MgO-MgAl2O4-C bricks(carbon content <1%) were developed using high purity fused magnesia,MgAl2O4 micropowder,and nanosized carbon as main starting materials,adding 4% antioxidants(Si powder,Al powder,and composite powder of Si and Al,respectively),mixing well with water,and shaping at 500 t friction press.By comparing the oxidation resistance,hot modulus of rupture,volume stability,and slag resistance of all specimens(including common MgO-C brick),the formulation and technical pr... |
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| Keywords: | Ladle Slag line Ultra-low-carbon Periclase-spinel-carbon brick Nanosized carbon |
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