3-5 Continuous Separation of Fe-Al-Zn Dross Phase from Hot-dip Galvanized Melt using Alternating Magnetic Field.
Experiments to continuously separate Fe-Al-Zn dross phase from hot dip galvanizing zinc melt were conducted on a laboratory-scale apparatus by using high-frequency alternating magnetic field. Effects of the processing time (t) on the separation efficiency were investigated. The experimental results showed that using the electromagnetic repulsive force resulting from the electrical conductivity difference between zinc melt and Fe-Al-Zn dross phase, the deleterious zinc dross particles causing surface defects of galvanizing steel sheets can be continuously separated from the zinc bath under alternating magnetic field, and the separation efficiency increased with the increase of the processing time. When the magnetic frequency is 17.5kHz, effective magnetic flux intensity is 0.1T, the cross section of the ceramic square pipe is 10× 10mm, and the processing time is 0.8-2.0s, the separation efficiency of zinc dross varies from 57.50％ to 82.80％, and the experimental results are almost in good agreement with theoretical results.
hot dip galvanizing melt Fe-Al-Zn dross phase electromagnetic separation.
ONG An-ping SHU Da WANG Jun CAI Xi-chuan SUN Bao-de CUI Jian SHEN Jian-guo REN Yu-sen YIN Xiao-dong
State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai 200030, Chin Research and Development Center of Baosteel, Shanghai 201900
国际会议
第七届亚太镀锌大会(The 7th Asia Pacific General Galvanizing Conference)(7th APGGC)
北京
英文
162-167
2007-09-14（万方平台首次上网日期，不代表论文的发表时间）