摘要
研究了不同工艺条件下海南矿粉预还原烧结矿的矿物组成、含量和显微结构,阐明了预还原烧结矿的形成机理,及矿物组成对其性能的影响。研究表明,预还原烧结矿的矿物组成主要为:浮氏体、金属铁、少量磁铁矿和三元铁酸钙及少量残碳;硅酸盐渣相矿物有β—硅酸二钙、钙铁橄揽石和极少量硅酸盐玻璃相。烧结矿中金属铁相互联结和硅酸盐渣相固结为其主要的固结方式。
In this article,the mineral composition and microstructure of pre-reduced sinter from Hainan iron ore under different technical conditions are studied,including forming mechanism of mineral composition and their influence on the characteristics of pre- reduced sinter.It has been proved that the mineral composition of pre-reduced sinter is mainly consisted of:Wustite,metal iron,minor magnetite,ternary calcium ferrite,and residual carbon;the silicate slag phase is consisted of β-larnite,kirschsteinite and trace glassic phase.The attachment of metal iron particles amonng themselves and solid bonding of silicate slag phase are the main modes of solid bonding of the sinter.
出处
《钢铁》
CAS
CSCD
北大核心
1997年第8期6-10,共5页
Iron and Steel
关键词
矿物组成
显微结构
冶金性能
预还原
烧结矿
pre-reduced sinter
mineral composition
microstructure
metallutgical property
