耐火材料
耐火材料
내화재료
REFRACTORIES
2015年
1期
39-47
,共9页
纳米炭黑%镁碳砖%酚醛树脂%抗渣侵蚀性能%显微结构
納米炭黑%鎂碳磚%酚醛樹脂%抗渣侵蝕性能%顯微結構
납미탄흑%미탄전%분철수지%항사침식성능%현미결구
nano carbon black%magnesia carbon bricks%phenolic resin%slag corrosion resistance%micro-structure
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。
為進一步提高鎂碳磚的抗渣侵蝕性能,將納米炭黑 N220加入到基礎配方(w)為鎂砂88%、石墨12%併外加有一定量鋁粉、鋁鎂閤金粉和4%熱固性酚醛樹脂的鎂碳磚中,研究瞭納米炭黑加入量(分彆佔樹脂質量的0、5%、10%、15%)對鎂碳磚經200℃烘後和1400℃埋炭處理後物理性能以及1550℃下抗渣侵蝕性能的影響。結果錶明:在鎂碳磚中添加適量納米炭黑會提高鎂碳磚在1400℃埋炭處理後的緻密度,進而提高其抗渣侵蝕性;加入納米炭黑佔樹脂質量的15%時,鎂碳磚試樣的抗渣侵蝕性能最好,但綜閤整體性能認為,加入炭黑以佔樹脂質量的5%~10%為宜。
위진일보제고미탄전적항사침식성능,장납미탄흑 N220가입도기출배방(w)위미사88%、석묵12%병외가유일정량려분、려미합금분화4%열고성분철수지적미탄전중,연구료납미탄흑가입량(분별점수지질량적0、5%、10%、15%)대미탄전경200℃홍후화1400℃매탄처리후물이성능이급1550℃하항사침식성능적영향。결과표명:재미탄전중첨가괄량납미탄흑회제고미탄전재1400℃매탄처리후적치밀도,진이제고기항사침식성;가입납미탄흑점수지질량적15%시,미탄전시양적항사침식성능최호,단종합정체성능인위,가입탄흑이점수지질량적5%~10%위의。
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%.