为进一步提高镁碳砖的抗渣侵蚀性能，将纳米炭黑 N220加入到基础配方（w）为镁砂88％、石墨12％并外加有一定量铝粉、铝镁合金粉和4％热固性酚醛树脂的镁碳砖中，研究了纳米炭黑加入量（分别占树脂质量的0、5％、10％、15％）对镁碳砖经200℃烘后和1400℃埋炭处理后物理性能以及1550℃下抗渣侵蚀性能的影响。结果表明：在镁碳砖中添加适量纳米炭黑会提高镁碳砖在1400℃埋炭处理后的致密度，进而提高其抗渣侵蚀性；加入纳米炭黑占树脂质量的15％时，镁碳砖试样的抗渣侵蚀性能最好，但综合整体性能认为，加入炭黑以占树脂质量的5％～10％为宜。
The basic formulation of MgO-C brick was 88% magnesia (in mass,the same hereinafter),12%graphite,extra aluminum powder,aluminum-magnesium alloy powder and 4% thermoset phenolic resin.In order to improve the corrosion resistance of MgO-C bricks,nano carbon black N220 was added into the basic formulation.Effects of nano carbon black additions (0,5%,10%,15% of resin mass)on the physical properties of MgO-C brick separately dried at 200 ℃ and carbon embedded fired at 1 400 ℃,and the cor-rosion resistance of the dried MgO-C bricks at 1 550 ℃ were studied.The results reveal that suitable addi-tion of nano carbon black can enhance the density of MgO-C bricks after fired at 1 400 ℃,and then im-prove the slag resistance;when the nano carbon black accounts for 15% of resin,the MgO-C bricks per-form the best slag corrosion resistance;considering the overall performance,the optimal nano carbon black addition is 5% -10%.
参考文献
| [1] | 王诚训.MgO-C 质耐火材料[M].北京:冶金工业出版社,1995:157-157. |
| [2] | 李亚伟;桑绍柏;金胜利 .碳复合耐火材料的研究现状与发展[J].耐火材料,2013,47(1):19-25. |
| [3] | 朱伯铨,姚亚双,张文杰.B4C-部分石墨化炭黑复合粉体的合成及其抗氧化性[J].耐火材料,2006(05):321-323,328. |
| [4] | Ochisi T .The development of refractories by applying nano-technolo-gy[J].Taikubustu,2004,56(8):8-11. |
| [5] | LI Lin,TANG Guang-sheng,HE Zhi-yong,LIU Kai-qi,PENG Xiao-yan.Influences of Black Carbon Addition on Mechanical Performance of Low-Carbon MgO-C Composite[J].钢铁研究学报（英文版）,2010(12):75-78. |
| [6] | 杨学军,丘哲明,胡良全.纳米碳黑对酚醛树脂力学性能的影响[J].宇航材料工艺,2003(04):34-38. |
| [7] | 傅献彩;沈文霞;姚天扬.物理化学:下册[M].北京:高等教育出版社,2005:343. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%