|
|
|
| Analytical Model for Cross-sectional Area of Workpiece in Round-oval-round Pass Sequence in Bar Rolling |
| |
|
|
|
|
Abstract The cross-sectional areas of workpiece for GCr15 bearing steel in round-oval-round pass sequence have been investigated according to the industrial data from a hot bar rolling mill. The correction coefficient of spread in groove in the cross-sectional area model has been optimized by adopting the influence factor of rolling speed on spread. Deviations between the calculated pass elongation rates using the optimized analytical model and the actual values are less than ±3% which indicates the modified model can be used as a meaningful reference for the roll pass design and process control of hot bar rolling production of GCr15 bearing steel.
|
|
Received: 20 October 2008
|
|
|
|
| [1] |
Dan-qing Jiang, Rui Wang, Qiong Zhang, Zhen-qiang Zhang, Ting-sheng Tu, Jiang Wang, Zhong-ming Ren. Effect of final electromagnetic stirring on solidification microstructure of GCr15 bearing steel in simulated continuous casting[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(2): 141-147. |
| [2] |
YE De-xin，DENG Xiang-bin，HE Jian-nan， DONG Feng-kui， HU Zhao-feng. Analysis of the cracking cause of GCr15 bearing steelring[J]. PHYSICS EXAMINATION AND TESTING, 2019, 37(2): 44-46. |
| [3] |
WANG Lu，SUN Yan-hui，JIAO Shuai，ZHAO Yong，WANG De-jiong，YIN Hao. Numerical simulation of secondary dendrite arm spacing of bearing steel bloom[J]. Iron and Steel, 2018, 53(7): 50-59. |
| [4] |
TIAN Chao,LIU Jian- hui,FAN Jian- wen,LU Heng- chang,DONG Han. Evaluation of inclusions of ultra- low oxygen bearing steel by statistics of extreme values method[J]. , 2018, 30(2): 127-131. |
| [5] |
SHI Zhi-yue，XU Hai-feng，XU Da，YU Feng，CAO Wen-quan. Effects of metallurgical craftwork on high bending fatigue performance of GCr15 steel during high cycle rotation[J]. Iron and Steel, 2018, 53(11): 85-92. |
| [6] |
TIAN Qian- ren,SHANG De- li,WANG Guo- cheng,. Aggregation mechanism of TiN inclusion in GCr15 bearing steel[J]. , 2018, 30(11): 857-865. |
|
|
|
|
2009, Vol. 1 
