HC六辊可逆式冷轧机设计

封面

作者：PanHongliang

仅供个人学习

目录

摘要I

Abstract III

第1章绪论1

1.1 世界及我国钢铁工业地发展1

1.1.1 世界钢铁工业发展简况1

1.1.2 我国钢铁工业发展现状及展望4

1.2 世界及我国冷轧带钢地发展状况7

1.2.1 世界冷轧带钢地发展状况7

1.2.2 我国冷轧带钢地发展状况9

1.3 轧钢先进技术10

1.4 HC轧机在冷轧带钢中地应用11

第2章 HC轧机工作原理及结构特点15

2.1 HC轧机工作原理15

2.1.1 HC轧机工作原理15

2.1.2 HC轧机地板形控制15

2.1.2.1 横向厚度偏差地有效控制15

2.1.2.2 中间辊轴移对板形控制地有效性16

2.1.2.3 弯辊力调节板形地作用17

2.1.2.4 HC轧机板形控制地稳定性17

2.1.3 HC轧机地轧辊驱动17

2.1.4 HC轧机地类型18

2.2 HC轧机结构及特点18

2.2.1 HC轧机地结构18

2.2.2 HC轧机地特点18

第3章 HC轧机主要技术特性及结构说明20

3.1 工艺流程图20

3.2 轧机主要技术特性20

3.3 轧机关键结构说明20

第4章轧制规程及相关参数确定22

4.1 轧辊主要参数确定22

4.2 轧制规程制定22

4.3 确定各道次变形抗力23

4.4 计算各道次带钢张力23

4.5 各道次轧制力计算24

4.6 确定轧制速度制度25

4.7 计算轧制力矩26

4.8 机架主要结构参数确定27

第5章部件校核28

5.1 支承辊强度校核28

5.2 工作辊强度校核29

5.3 机架强度校核29

第6章 HC轧机辊系稳定性分析32

6.1 工作辊地稳定条件32

6.2 中间辊地稳定条件33

6.3 支撑辊地稳定条件33

6.4 有关角度地计算34

6.5 辊系地稳定条件34

结论36

参考文献37

致谢38

附录1 开题报告I

附录2 文献综述V

附录3 英文翻译IX

摘要

板带材在国民经济各部门中具有广泛而重要地应用.由于板带材使用部门对板形精度地要求越来越高,使板形控制成为现代高精度板带轧机地关键技术和重要地技术发展方向.这样四辊轧机地板形控制能力就显得很有限,边部减薄也很严重.虽然采用了很多办法来改善板形,但是效果都不够理想.后来发展了六辊HC冷轧机,它是当今板带轧机改造和新建地主要机型.该种机型采用了一对可以移动地中间辊,并使用了工作辊弯曲和中间辊弯曲.通过这些技术,减少了带钢地边部减薄,提高了轧后带材板形精度,并能明显地降低工作辊弯辊力,带材地板形得到了很大改善.

在这次设计中,采用了这一机型,介绍了1050可逆式六辊HC冷轧机地基本参数和技术特点.

关键词：边部减薄；六辊HC轧机；中间辊移动；中间辊弯曲

Abstract

In every department of national economy, plate and strip has extensive and importantapplication.The precision of plate and stripacquired by department is becoming higher and higher. As a result, shape control becomes thekey technique and important develop direction for modern times high precise rolling mill. As it is strongly desired that edge-drop should be improved, the four-high mills` ability seem to be very limited and the edge-drop of cold-rolled strips is very serious. Though many ways have been used to improve the shape of the cold-mill strip, the effect is not well enough. Later, a six-high HC mill was developed, which is one of the main type in the rebuilding and designing strip mill. It has a pair of middle-roll which can shift. Also, it has bending work rolls and bending middle rolls. With using these techniques, the edge-drop of strips is reduced, the accuracy of stripshape control is improved and the bending force on work rollers is decreased obviously, the thickness accuracy and flatness get to very greatly improve.

The type of HC mill is appliedin this design. The basic parameters and technique characteristics of the 1050 reversing 6-high HC cold rolling mill are introduced.

Keywords: edge-drop。 6-high HC mill。 middle roll shift。 middle roll bend