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| Revamping of Bar Production Line for Ultra Fine Grained Ribbed Bars |
ZHANG Hai1, 2,TONG Jinping3,LIANG Yuncai4,
ZHANG Enmin5,YANG Fan5 |
| 1. Materials Science and Engineering Institute, University of Science and Technology Beijing, Beijing 100083, China;2. Tangshan Iron and Steel Group, Tangshan 063000, Hebei,China; 3. Continuous Rolling Middle Section Plant Xuanhua Iron and Steel Group Co., of Tangshan Iron and Steel Group, Xuanhua 075100, Hebei, China;4. First Small Section Rolling Mill Of Jin’an Iron and Steel Group Co. , Jin’an 250101,Shandong, China;5. Beijing Adler Bauwerk Engineering and Technology Co., Ltd., Beijing 100086, China |
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Abstract The production line was revamped with addition of water cooling devices between roughing and intermediate trains and after finishing tain and a control system for adjustment of water flow rate, water temperature, water pressure, rolling piece temperature and position.The results show,that for ribbed bars of 20MnSi and 20MnSiNb 475m3/h of water flow rate, 1.5MPa of water pressure, 14.5m/s of rolling speed are suitable.
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Received: 01 January 1900
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2007, Vol. 42 
