含碳球团高温抗压强度的实验测定  

Measurement of High Temperature Compressive Strength of Pellets Containing Carbon

作　　者：高运明[1] 余方超[2] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081 [2]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《武汉科技大学学报》2006年第2期109-111,共3页Journal of Wuhan University of Science and Technology

基　　金：湖北省自然科学基金资助项目(2005ABA019)

摘　　要：采用自制的高温抗压强度测定装置,研究了使用有机黏结剂的含碳球团在不同温度、气氛条件下高温强度随时间的变化.试验结果表明,采用有机黏结剂“CC”的含碳球团在800℃下保温1 h,球团仍能保持较高的高温强度（30～40 N/球）.在球团开始显著的自还原反应之前,球团高温强度主要由有机黏结剂来保证;而在还原反应（1 000℃以上）之后,球团高温强度则主要依靠还原的大量金属铁;球团的高温强度能满足转底炉生产工艺的要求.The variation of high temperature compressive strength of the pellets containing carbon with time under different temperatures and atmosphere is studied by means of self-made test apparatus. The results show that the pellets using organic binder ＂CC＂ will continue to have higher strength of 30 -40 N/pellet at 800℃ for 1 hour. Before the marked self-reduction of the pellets at 1 000℃, the high temperature strength depends on organic binder; and after that, on reduced metallic iron. The high temperature strength fully meets the requirement of the rotary hearth furnace （RHF） process.

关 键 词：高温强度 含碳球团 有机黏结剂 转底炉 

分 类 号：TF046.6[冶金工程—冶金物理化学]