Ferritic rolling to produce soft deep-drawable thin hot strips

被引:7
作者
Tomitz, A [1 ]
Kaspar, R [1 ]
机构
[1] Max Planck Inst Eisenforsch GmbH, D-4000 Dusseldorf, Germany
来源
STEEL RESEARCH | 2000年 / 71卷 / 6-7期
关键词
Annealing - Austenite - Cold rolling - Deep drawing - Ferrite - Hot rolling - Metallographic microstructure - Recrystallization (metallurgy) - Steel metallurgy;
D O I
10.1002/srin.200001222
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
In a conventional production of deep-drawable sheets of steel, a hot rolling in austenite and a cold rolling at room temperature together with a subsequent recrystallization annealing are applied with a cold strip as a final product. As a cost saving replacement for this, a thin-gauge hot strip with a required deep-drawability can be employed. A conventionally (in austenite) hot rolled strip is hardly applicable for this because of its unsatisfactory texture as well as because of the technical difficulties to produce hot strips with sufficiently small thicknesses. As a promising realization of cast saving thin-gauge deep-drawable hot strips of steel, a warm rolling can be applied with reduced finish rolling temperatures. In this practice the finish rolling is shifted down into the temperature region of ferrite. In the present work extensive laboratory tests on IF- and ELC-steel were carried out by using the hot deformation simulator Wumsi. By the measurements of the texture development as well as by the computing of r-values, the process parameters of ferritic rolling and a subsequent direct recrystallization in the coil of these steels could be optimized.
引用
收藏
页码:233 / 238
页数:6
相关论文
共 19 条
[1]  
Bald W, 1999, STAHL EISEN, V119, P77
[2]  
BANRETT MR, 1998, MODERN LC ULC SHEET, V1, P61
[3]  
BATE PS, 1997, MANUAL ANSI MPI
[4]  
BLECK W, 1984, THYSSEN TECHN BER, V1, P24
[5]  
Bunge H. J., 1969, Mathematische Methoden der Texturanalyse
[6]  
HARLET P, 1993, LOW CARBON STEELS 90, P389
[7]  
JONAS JJ, 1998, MODERN LC ULC SHEET, V1, P73
[8]  
KASPAR R, 1983, Z WERKSTOFFTECH, V14, P272
[9]  
LAHN I, 1998, EINFLUSS UNTERSCHIED
[10]  
LANG C, 1986, STAHL EISEN, V106, P122