低硅烧结矿粘结相强度的影响因素  

Factors Influencing Strength of Bonding Phase for Low Silica Sinters

作　　者：李荣[1] 郭江[1] 张芳[2] 

机构地区：[1]济源职业技术学院冶金与化学工程系,河南济源454650 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《铸造工程》2014年第4期30-33,共4页Foundry Engineering

基　　金：河南省自然科学基金资助项目（14B450001）

摘　　要：为了探明低硅烧结矿粘结相强度的影响因素，进行了微型烧结试验和矿物组成及显微结构的检测。研究结果表明，影响粘结相强度的主要因素是SFCA与赤铁矿含量之和、玻璃相含量和烧结矿结构，并得出粘结相强度最高的条件：最高烧结温度为1280℃、碱度为2．8、w（MgO）为1．0％、w（CaF2）为0．8％、w（SiO2）为4．4％及w（Al2O3）／w（SiO2）为0．15。The factors influencing the strength of bonding phase tor low silica slnters were explorea by mini-sintering test and mineral composition and microstructure observation. The results show that the main factors influencing the strength of bonding phase are the sum of the content of SFCA and hematite, the content of glass phase and the structure of sinter. The optimum sintering condition of low silica sinter is that the highest sintering temperature is 1280 ℃, the basicity is 2.8, the content of MgO is 1.0%, the content of CaF2 is 0.8%, the content of SiO2 is 4.4%, and the ratio of Al2O3 and SiO2 is 0.15.

关 键 词：低硅烧结矿 粘结相强度 矿物组成 显微结构 

分 类 号：TF521[冶金工程—钢铁冶金]