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Magnesia carbon brick with high thermal shock resistance stability and preparation method thereof
The present invention discloses a magnesia carbon brick with strong thermal shock resistance stability and a preparation method thereof, and relates to the technical field of magnesia carbon bricks. The magnesia carbon brick comprises fused magnesia, a carbon source, an auxiliary material, an auxiliary agent and a binding agent, wherein the content ratio of the fused magnesia to the carbon source to the auxiliary material to the auxiliary agent to the binding agent is 3: 3: 1: 0.1: 2.9. According to the magnesia carbon brick with high thermal shock resistance stability and the preparation method thereof, a certain number of microcracks and pores exist in the material by methods of increasing proper porosity in the material, introducing or generating a phase with a small linear expansion coefficient, introducing or generating a certain phase, adding and uniformly dispersing fibers or fibrous materials and the like, so that the thermal shock resistance of the material is improved; and meanwhile, the phenolic resin binding agent is used for replacing a carbon-containing resin binding agent, the elasticity modulus can be effectively reduced, the smaller the elasticity modulus is, the larger the elasticity is, the elastic deformation generated by the material is large, thermal stress can be relieved and released, and then the thermal shock resistance stability of the magnesia carbon brick can be remarkably guaranteed.
本发明公开了一种抗热震稳定性强的镁碳砖及其制备方法，涉及镁碳砖技术领域，其配料含有电熔镁砂、碳源、助料、辅助剂和结合剂，其中，按含量比计，电熔镁砂：碳源：助料：辅助剂：结合剂＝3:3:1:0.1:2.9。该抗热震稳定性强的镁碳砖及其制备方法，通过增加材料内适当的气孔率、引入或生成线膨胀系数小的物相、引入或生成某种物相、加入并均匀分散纤维或纤维状物等方法，使材料内存在一定数量的微裂纹和气孔，提高材料的抗热震性，同时选用酚醛树脂结合剂取代含碳树脂结合剂，能有效降低弹性模量，弹性模量越小，弹性越大，材料产生弹性变形较大，能缓解和释放热应力，进而能够显著保证镁碳砖的抗热震稳定性。
Magnesia carbon brick with high thermal shock resistance stability and preparation method thereof
The present invention discloses a magnesia carbon brick with strong thermal shock resistance stability and a preparation method thereof, and relates to the technical field of magnesia carbon bricks. The magnesia carbon brick comprises fused magnesia, a carbon source, an auxiliary material, an auxiliary agent and a binding agent, wherein the content ratio of the fused magnesia to the carbon source to the auxiliary material to the auxiliary agent to the binding agent is 3: 3: 1: 0.1: 2.9. According to the magnesia carbon brick with high thermal shock resistance stability and the preparation method thereof, a certain number of microcracks and pores exist in the material by methods of increasing proper porosity in the material, introducing or generating a phase with a small linear expansion coefficient, introducing or generating a certain phase, adding and uniformly dispersing fibers or fibrous materials and the like, so that the thermal shock resistance of the material is improved; and meanwhile, the phenolic resin binding agent is used for replacing a carbon-containing resin binding agent, the elasticity modulus can be effectively reduced, the smaller the elasticity modulus is, the larger the elasticity is, the elastic deformation generated by the material is large, thermal stress can be relieved and released, and then the thermal shock resistance stability of the magnesia carbon brick can be remarkably guaranteed.
本发明公开了一种抗热震稳定性强的镁碳砖及其制备方法，涉及镁碳砖技术领域，其配料含有电熔镁砂、碳源、助料、辅助剂和结合剂，其中，按含量比计，电熔镁砂：碳源：助料：辅助剂：结合剂＝3:3:1:0.1:2.9。该抗热震稳定性强的镁碳砖及其制备方法，通过增加材料内适当的气孔率、引入或生成线膨胀系数小的物相、引入或生成某种物相、加入并均匀分散纤维或纤维状物等方法，使材料内存在一定数量的微裂纹和气孔，提高材料的抗热震性，同时选用酚醛树脂结合剂取代含碳树脂结合剂，能有效降低弹性模量，弹性模量越小，弹性越大，材料产生弹性变形较大，能缓解和释放热应力，进而能够显著保证镁碳砖的抗热震稳定性。
Magnesia carbon brick with high thermal shock resistance stability and preparation method thereof
一种抗热震稳定性强的镁碳砖及其制备方法
PENG REN (author) / GONG YUCAI (author) / ZHANG XUESONG (author) / YU XIAODONG (author) / CAO LIYUN (author)
2021-09-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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