耐火材料 ›› 2023, Vol. 57 ›› Issue (5): 402-406.DOI: 10.3969/j.issn.1001-1935.2023.05.006

• 研究开发 • 上一篇    下一篇

不同结合剂结合MgO-C耐火材料的性能研究

韩艺辉1), 曹喜营1), 冯海霞1), 王晖2), 柳军1), 潘元帅1), 王建斌1)   

  1. 1)中钢集团洛阳耐火材料研究院有限公司 先进耐火材料国家重点实验室 河南洛阳 471039
    2)铁岭市朝辉节能技术开发有限公司 辽宁铁岭 112000
  • 收稿日期:2023-03-07 出版日期:2023-10-15 发布日期:2023-10-26
  • 通讯作者: 曹喜营,男,1973年生,博士,正高级工程师。E-mail:caoxy@lirrc.com
  • 作者简介:韩艺辉:男,1995年生,硕士研究生。E-mail:273992786@qq.com
  • 基金资助:
    国家重点研发计划项目(2021YFB3701400);横向合作项目(2021洛耐院技字17)。

Properties of MgO-C refractories bonded with different binders

Han Yihui, Cao Xiying, Feng Haixia, Wang Hui, Liu Jun, Pan Yuanshuai, Wang Jianbin   

  1. First author's address: State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,Henan,China
  • Received:2023-03-07 Online:2023-10-15 Published:2023-10-26

摘要: 为减少碳排放,以电熔镁砂、鳞片石墨、Al-Si复合粉、α-Al2O3微粉为原料,分别选用新型环保的络合镁铝胶结剂(简写为W粉)和酚醛树脂(简写为PF)为结合剂,制备了MgO-C耐火材料,对比了其物理性能及抗热震性。结果表明:1)不同温度处理后,以W粉结合的试样W的线变化率、显气孔率均大于以PF结合的试样PF,体积密度、常温耐压强度略小于试样PF的;2)试样W比试样PF的抗热震性好,且试样W热震1次后的常温抗折强度比热震前的提高19.2%。

关键词: MgO-C耐火材料, 环保结合剂, 物理性能, 抗热震性

Abstract: In order to reduce carbon emissions,MgO-C refractories were prepared using fused magnesia,flake graphite,Al-Si composite powder and α-Al2O3 micropowder as raw materials,and new environmental friendly complex magnesium-aluminum cementing agent (abbreviated as W powder) and phenolic resin (abbreviated as PF) as binders,respectively.The physical properties and thermal shock resistance of the MgO-C refractories were compared.The results show that:(1)after different temperature treatment,W powder bonded samples have higher linear change rate and apparent porosity but lower bulk density and cold compressive strength than PF bonded samples;(2)W bonded samples have better thermal shock resistance than PF bonded samples,and the cold modulus of rupture of the sample bonded with W after one thermal shock is increased by 19.2%.

Key words: magnesia-carbon refractories, environmental friendly binder, physical properties, thermal shock resistance

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