| 发明名称 | Environmentally friendly flux for molten steel desulfurization | ||
| 摘要 | An environmentally friendly flux for molten steel desulfurization includes CaO and Al2O3 so that [CaO]/[Al2O3] is within a range of 1.6 to 3.0, and includes one or more alkali metal oxides of Na2O, K2O, and Li2O, and SiO2 so that [SiO2]/[R2O] is within a range of 0.1 to 3, [R2O] is within a range of 0.5 mass % to 5 mass %, and [SiO2] is within a range of 0.05 mass % to 15 mass % in a case in which the [CaO], the [Al2O3], the [SiO2], and the [R2O] represent the mass % of CaO, the mass % of Al2O3, the mass % of SiO2, and the total amount of the mass % of Na2O, the mass % of K2O, and the mass % of Li2O respectively. | ||
| 申请公布号 | US9127327(B2) | 申请公布日期 | 2015.09.08 |
| 申请号 | US201214002170 | 申请日期 | 2012.03.30 |
| 申请人 | NIPPON STEEL & SUMITOMO METAL CORPORATION | 发明人 | Wakoh Masamitsu;Matsuzawa Akihiro;Fuchigami Katsuhiro;Kume Kohsuke;Ogawa Yuji |
| 分类号 | C21C7/064;C21C1/02;C21C7/076 | 主分类号 | C21C7/064 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. An environmentally friendly flux for molten steel desulfurization comprising: CaO and Al2O3 so that [CaO] is 61 to 75 mass % and [CaO]/[Al2O3] is within a range of 1.6 to 3.0; and one or more alkali metal oxides of Na2O, K2O, and Li2O, and SiO2 so that [SiO2]/[R2O] is within a range of 0.1 to 3, [R2O] is within a range of 0.5 mass % to 5 mass %, and [SiO2] is within a range of 0.05 mass % to 15 mass %, in a case in which the [CaO], the [Al2O3], the [SiO2], and the [R2O] represent mass % of CaO, mass % of Al2O3, mass % of SiO2, and a total amount of mass % of Na2O, mass % of K2O, and mass % of Li2O respectively. | ||
| 地址 | Tokyo JP | ||