硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (2): 655-662.DOI: 10.16552/j.cnki.issn1001-1625.2025.0832
叶玉奎1(
), 雷长坤2(
), 廖家明1, 张鑫2, 胡天增2, 任博2, 王恩会2(
), 侯新梅2
收稿日期:2025-08-18
修订日期:2025-09-23
出版日期:2026-02-20
发布日期:2026-03-09
通信作者:
雷长坤,博士,助理研究员。E-mail:xjdlck@163.com作者简介:叶玉奎(1979—),男,高级工程师。主要从事特殊钢生产、技术和研发等方面的研究。E-mail: 3076318@qq.com
基金资助:
YE Yukui1(
), LEI Changkun2(
), LIAO Jiaming1, ZHANG Xin2, HU Tianzeng2, REN Bo2, WANG Enhui2(
), HOU Xinmei2
Received:2025-08-18
Revised:2025-09-23
Published:2026-02-20
Online:2026-03-09
摘要:
本研究制备三种不同碱度(R=0.8、1.0、1.2)的精炼渣,结合热力学计算、表面张力测试和动态抗渣试验,系统研究了碱度对镁碳砖抗渣侵蚀性能的影响。结果表明,随着碱度提高,精炼渣黏度降低,同时表面张力显著增大。精炼渣S1(R=0.8)中氧化镁溶解度较大,因此镁碳砖的蚀损较为严重。精炼渣S3(R=1.2)中CaO含量的增加导致其黏度降低和表面张力增大,渗透深度相较于精炼渣S1(R=0.8)增加了69.14%,但耐火材料的主体结构完整性保持相对较好。适度提高精炼渣碱度能够延长镁碳耐火材料使用寿命,但在实际应用中还需综合考虑其对于钢中夹杂物的影响。
中图分类号:
叶玉奎, 雷长坤, 廖家明, 张鑫, 胡天增, 任博, 王恩会, 侯新梅. 不同碱度精炼渣对镁碳耐火材料的侵蚀行为[J]. 硅酸盐通报, 2026, 45(2): 655-662.
YE Yukui, LEI Changkun, LIAO Jiaming, ZHANG Xin, HU Tianzeng, REN Bo, WANG Enhui, HOU Xinmei. Erosion Behavior of Refining Slag with Different Basicities on Magnesia-Carbon Refractories[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(2): 655-662.
| Composition | CaO | SiO2 | MgO | Al2O3 | Fe2O3 | MnO | TiO2 | K2O |
|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 38.43 | 37.99 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 |
表1 帘线钢用精炼渣的主要化学成分
Table 1 Main chemical composition of cord steel refining slag
| Composition | CaO | SiO2 | MgO | Al2O3 | Fe2O3 | MnO | TiO2 | K2O |
|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 38.43 | 37.99 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 |
| Sample | Mass fraction/% | Basicity | |||||||
|---|---|---|---|---|---|---|---|---|---|
| CaO | SiO2 | MgO | Al2O3 | Fe2O3 | MnO | TiO2 | K2O | ||
| S1 | 33.97 | 42.46 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 0.8 |
| S2 | 38.21 | 38.21 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 1.0 |
| S3 | 41.69 | 34.74 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 1.2 |
表2 不同碱度精炼渣的化学组成
Table 2 Chemical composition of refining slag with different basicities
| Sample | Mass fraction/% | Basicity | |||||||
|---|---|---|---|---|---|---|---|---|---|
| CaO | SiO2 | MgO | Al2O3 | Fe2O3 | MnO | TiO2 | K2O | ||
| S1 | 33.97 | 42.46 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 0.8 |
| S2 | 38.21 | 38.21 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 1.0 |
| S3 | 41.69 | 34.74 | 17.00 | 2.85 | 2.00 | 1.34 | 0.28 | 0.10 | 1.2 |
| Composition | MgO | Al2O3 | SiO2 | C | SO3 | CaO | MnO | Fe2O3 |
|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 75.10 | 2.01 | 4.78 | 14.90 | 0.22 | 2.91 | 0.11 | 1.47 |
表3 商用镁碳砖原砖的XRF结果
Table 3 XRF results of commercial MgO-C bricks
| Composition | MgO | Al2O3 | SiO2 | C | SO3 | CaO | MnO | Fe2O3 |
|---|---|---|---|---|---|---|---|---|
| Mass fraction/% | 75.10 | 2.01 | 4.78 | 14.90 | 0.22 | 2.91 | 0.11 | 1.47 |
| Point | Atomic fraction/% | |||||||
|---|---|---|---|---|---|---|---|---|
| C | N | O | Mg | Al | Si | Pt | Ca | |
| 1 | — | — | 46.17 | 53.45 | — | — | 0.38 | — |
| 2 | 4.53 | 3.30 | 53.80 | 14.95 | — | 12.23 | 0.33 | 10.87 |
| 3 | 4.88 | 4.10 | 54.76 | 6.52 | 2.75 | 13.16 | 0.32 | 13.51 |
| 4 | 1.16 | — | 49.85 | 16.50 | — | 15.24 | 0.38 | 16.88 |
| 5 | — | 41.47 | — | 58.06 | — | — | 0.47 | — |
表4 图9中侵蚀试样的EDS分析
Table 4 EDS analysis of erosion specimens in Fig.9
| Point | Atomic fraction/% | |||||||
|---|---|---|---|---|---|---|---|---|
| C | N | O | Mg | Al | Si | Pt | Ca | |
| 1 | — | — | 46.17 | 53.45 | — | — | 0.38 | — |
| 2 | 4.53 | 3.30 | 53.80 | 14.95 | — | 12.23 | 0.33 | 10.87 |
| 3 | 4.88 | 4.10 | 54.76 | 6.52 | 2.75 | 13.16 | 0.32 | 13.51 |
| 4 | 1.16 | — | 49.85 | 16.50 | — | 15.24 | 0.38 | 16.88 |
| 5 | — | 41.47 | — | 58.06 | — | — | 0.47 | — |
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