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Surface Morphology Evolution of Steel Strip During Cold Rolling After Hydrogen Reduction |
JING Yu-an1, ZANG Xiao-ming1, SHANG Qiu-yue1, QIN Yi1, LI Fu-qiang2, LIU Ying-ming2 |
1. Liaoning Key Laboratory for Material Molding and Organizational Performance Control, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China 2. Cold Rolling Factory of Angang, Anshan 114001,Liaoning, China) |
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Abstract A five-pass cold rolling experiment of steel strip after hydrogen reduction was performed on a 4-high mill. The surface morphologies of samples were observed by SEM and the surface roughness curves were measured by using a TR200 roughness meter before and after rolling deformation. The evolution rules of the sample surface morphology under different roll surface roughness and lubrication conditions were emphatically analyzed and discussed. The results showed that most of defects on the sample surface were roll-flattened after five-pass cold rolling, and the remains turned into micro pits leaving on the sample surface. The surface smoothness increased with the increase of rolling passes. The cracks were easier to be roll-flattened and the residual defects were less and shallow on the sample surface but the roller marks were relatively more under the condition of dry friction than under the condition of oil lubrication.
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Received: 14 April 2014
Published: 02 December 2014
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[1] |
Primavera A, Cattarino S, Pavlicevic M. Influence of process parameters on scale reduction with H2 [J]. Ironmaking and Steelmaking, 2007, 34 (4): 290-294.
|
[1] |
Primavera A, Cattarino S, Pavlicevic M. Influence of process parameters on scale reduction with H2 [J]. Ironmaking and Steelmaking, 2007, 34 (4): 290-294.
|
[2] |
Samways N L. Strong Competitor With Traditional Pickling Process-Hydrogen Reduction Scale Removal Process [J]. World Iron& Steel, 2002, (2): 47-51.
|
[2] |
Samways N L. Strong Competitor With Traditional Pickling Process-Hydrogen Reduction Scale Removal Process [J]. World Iron& Steel, 2002, (2): 47-51.
|
[3] |
石 杰, 王德仁, 何业东, 等. 用CO还原BRC3热轧带钢表面氧化铁皮的研究[J].钢铁,2008(05): 89-93.
|
[3] |
石 杰, 王德仁, 何业东, 等. 用CO还原BRC3热轧带钢表面氧化铁皮的研究[J].钢铁,2008(05): 89-93.
|
[4] |
Shi Jie, Wang De-ren, He Ye-dong, Qi Hui-bin, Wei Gao. Reduction of oxide scale on hot-rolled strip steels by carbon monoxide [J]. Materials Letters, 2008, 62(20):3500-3502.
|
[4] |
Shi Jie, Wang De-ren, He Ye-dong, Qi Hui-bin, Wei Gao. Reduction of oxide scale on hot-rolled strip steels by carbon monoxide [J]. Materials Letters, 2008, 62(20):3500-3502.
|
[5] |
井玉安、于云蛟、李胜利.氮氢混合气氛下带钢表面氧化铁皮的还原[J].热加工工艺,2013,42(18):45-48.
|
[5] |
井玉安、于云蛟、李胜利.氮氢混合气氛下带钢表面氧化铁皮的还原[J].热加工工艺,2013,42(18):45-48.
|
[6] |
于云蛟、李胜利、井玉安、韩跃.氢气还原对热轧带钢表面形貌的影响[J].轧钢,2012,29(5):18-21.
|
[6] |
于云蛟、李胜利、井玉安、韩跃.氢气还原对热轧带钢表面形貌的影响[J].轧钢,2012,29(5):18-21.
|
[7] |
Turkdogan E. T. and Vinters J. V. Gaseous Reduction of Iron Oxides: Part Ⅰ. Reduction of Hematite in Hydrogen, Metallurgical Transactions, 1971, 2(11): 3175-3188.
|
[7] |
Turkdogan E. T. and Vinters J. V. Gaseous Reduction of Iron Oxides: Part Ⅰ. Reduction of Hematite in Hydrogen, Metallurgical Transactions, 1971, 2(11): 3175-3188.
|
[8] |
Ahmed R., Sutcliffe M.P.F. Identification of surface features on cold-rolled stainless steel strip [J]. Wear, 2000, 244: 60.
|
[8] |
Ahmed R., Sutcliffe M.P.F. Identification of surface features on cold-rolled stainless steel strip [J]. Wear, 2000, 244: 60.
|
[9] |
Sutcliffe M.P.F, Georgiades F. Characterisation of pit geometry in cold-rolled stainless steel strip [J]. Wear, 2002, 253: 963.
|
[9] |
Sutcliffe M.P.F, Georgiades F. Characterisation of pit geometry in cold-rolled stainless steel strip [J]. Wear, 2002, 253: 963.
|
[10] |
Le H R, Sutcliffe M P F. Analysis of surface roughness of cold-rolled aluminium foil [J].Wear, 2000, 244: 71.
|
[10] |
Le H R, Sutcliffe M P F. Analysis of surface roughness of cold-rolled aluminium foil [J].Wear, 2000, 244: 71.
|
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