不同结合剂结合MgO-C耐火材料的性能研究  

Properties of MgO - C refractories bonded with different binders

作　　者：韩艺辉 曹喜营[1] 冯海霞[1] 王晖 柳军[1] 潘元帅 王建斌 Han Yihui;Cao Xiying;Feng Haixia;Wang Hui;Liu Jun;Pan Yuanshuai;Wang Jianbin(State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,Henan,China)

机构地区：[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

出　　处：《耐火材料》2023年第5期402-406,共5页Refractories

基　　金：国家重点研发计划项目(2021YFB3701400);横向合作项目(2021洛耐院技字17)。

摘　　要：为减少碳排放,以电熔镁砂、鳞片石墨、Al-Si复合粉、α-Al_(2)O_(3)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%。In order to reduce carbon emissions,MgO-C refractories were prepared using fused magnesia,flake graphite,Al-Si composite powder andα-Al_(2)O_(3) 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%.

关 键 词：MGO-C耐火材料 环保结合剂 物理性能 抗热震性 

分 类 号：TQ175[化学工程—硅酸盐工业]