中国科技论文在线

上传时间

2012年05月05日

【会议论文】Study on the Influence of Secondary Cooling Water Coverage Area of Bloom Surface on Cooling Effect in Continuous Casting of Gearing Steel

刘青， Xiaofeng Zhang ) ， Qing Liu )， Lingzhou Meng )， Qingwen He ) Zhichao Dou)

AISTech 2010-Iron and Steel Technology Conference proceedings．：，-0001：

-1年11月30日

摘要

Bloom,， Secondary cooling,， Heat transfer model,， Stress model,， Cooling effect,， Gearing steel

330浏览
0点赞
0收藏
12分享
434下载
0

引用

上传时间

2007年10月10日

【期刊论文】research on tundish running for steelmaking workshop

刘青

，-0001，（）：

-1年11月30日

摘要

85浏览
0点赞
0收藏
0分享
124下载
0

引用

上传时间

2012年05月05日

【会议论文】Research on Rational Collocation of LF in Medium and Small Size BOF Process

刘青， Qing Liu )， Jia Yin )， Bao Wang )， Xinzhong Tian )

AISTech 2009-Iron and Steel Technology Conference proceedings．：，-0001：

-1年11月30日

摘要

Ferrous metallurgy process engineering,， BOF steelmaking plant,， LF,， Productive capacity,， Quality steel proportion,， Time parameter

65浏览
0点赞
0收藏
11分享
107下载
0

引用

上传时间

2007年10月10日

【期刊论文】Physical model of ladle running for steelmaking workshop

刘青

，-0001，（）：

-1年11月30日

摘要

87浏览
0点赞
0收藏
0分享
372下载
0

引用

上传时间

2012年05月05日

【期刊论文】Optimal control of secondary cooling for medium thickness slab continuous casting

刘青， X.-Y. Wang， Q. Liu*， B. Wang， X. Wang， J.-S. Qing， Z.-G. Hu and Y. H. Sun

Ironmaking and Steelmaking，-0001，（）：

-1年11月30日

摘要

A software to simulate the solidification, heat transfer and water flowrate distribution in slab continuous casting was developed by establishing a mathematical model for the heat transfer and solidification in medium thickness slab casting. This model was validated by pin shooting and surface temperature measurement experiments. A reasonable target surface control temperature was found by testing the high temperature mechanical properties of Nb bearing ship plate steel,and then the water flowrate of each loop of the secondary cooling zone was determined by the software. The influence of uneven secondary cooling in the slab width direction on the quality of the slab was also investigated, which provided data for the optimisation of the secondary cooling of the slab caster. On the basis of the above research, an optimisation scheme for a secondary cooling system was proposed. Experimental results showed that the quality of the slab was significantly improved after optimisation. The centreline macrosegregation was reduced, and the ratio of equiaxed grains was increased by 3?18%. In addition, the transverse cracking of the slab was almost eliminated.

Slab continuous casting,， Mathematical model,， Secondary cooling optimisation,， Ship plate steel

109浏览
0点赞
0收藏
0分享
457下载
0

引用