工程科学学报2016，Vol.38Issue(12)：1711-1719,9.DOI:10.13374/j.issn2095-9389.2016.12.008
锰球制备条件对氮化反应的影响
Influence of Mn pellet preparation conditions on nitriding reaction
朱翔鹰 1翟玉春2
作者信息
- 1. 东北大学冶金学院,沈阳110819
- 2. 江苏江南铁合金有限公司,常州213119
- 折叠
摘要
Abstract
Nitriding reaction of Mn pellets prepared under different conditions was investigated with a self-made air-proofed nitriding system.The effects of Mn particle size,pelletizing pressure and binder content on the nitriding reaction were studied,and the real-time variation curves of temperature and Mn pellet mass were measured.The results show that with the decrease of particle size from 16-40 mesh to 60-80 mesh,the time for the pellet center temperature reaching peak (tp) shifts from 164s to 101 s,the maximum temperature increment at the pellet center (△Tmax) increases from 147 ℃ to 233 ℃,and the conversion ratio at 1 h rises from 90.81％ to 93.64％.With increasing pelletizing pressure from 266 MPa to 443 MPa,tp decreases by 89 s,△Tm=increases by 22 ℃,and the conversion ratio at 1 h rises from 91.59％ to 94.92％.With the increase of binder addition from 1 g to 3 g,the conversion ratio at 1 h drops from 92.90％ to 89.80％.The data points of the conversion rate and the nitriding time can be approximately fitted with the probability density function of the log-normal distribution.关键词
氮化锰/制备方法/氮化/转化速率/粒度/压力/黏结剂Key words
manganese nitride/preparation methods/nitriding/conversion rate/particle size/pressure/binders分类
矿业与冶金引用本文复制引用
朱翔鹰,翟玉春..锰球制备条件对氮化反应的影响[J].工程科学学报,2016,38(12):1711-1719,9.
