超细晶螺纹钢生产线改造及工艺实践

钢铁, 2007, 42(11): 48-0.

超细晶螺纹钢生产线改造及工艺实践

1.1. Materials Science and Engineering Institute, University of Science and Technology Beijing, Beijing 100083, China

2.2. Tangshan Iron and Steel Group, Tangshan 063000, Hebei,China

3. 3. Continuous Rolling Middle Section Plant Xuanhua Iron and Steel Group Co., of Tangshan Iron and Steel Group, Xuanhua 075100, Hebei, China

5.5. Beijing Adler Bauwerk Engineering and Technology Co., Ltd., Beijing 100086, China

关键词：超细晶螺纹钢筋;形变和相变耦合;中间冷却;轧后冷却

Revamping of Bar Production Line for Ultra Fine Grained Ribbed Bars

ZHANG Hai , TONG Jinping , LIANG Yuncai , ZHANG Enmin , YANG Fan

Keywords： ultra fine grained ribbed bar;deformation and transformation coupling;cooling during rolling;cooling after rolling

通过在棒材粗、中轧阶段后增加中间冷却器和在精轧机后增加穿水冷却装置等措施，采用自动控制系统对冷却水的水量、水温、水压和轧件温度、位置等参数进行过程控制，改造后的设备批量生产20MnSi和20MnSiNb螺纹钢筋的结果表明，控冷供水量在475 m3/h,水压1.5 MPa，轧制速度为14.5 m/s可以获得良好的力学性能。

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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