棒材连轧生产线孔型设计+CAD图纸
Pass design of bar continuous rolling production line
Abstract: According to the task,for the design of Φ12mm, Φ14mm, and Φ15mm bar rolling line of pass. There are 17 mill stand before the plant transformation of a bar,Φ16 ~ Φ50 round screw steel is the main production specifications. At present, there are two main problems: one is the 2# rack pressure is too big, there is hidden trouble of equipment; another is 1# ~ 4# roughing mill by box-square groove,groove wear serious, often unplanned roll change, influence the production efficiency. To solve these problems, added 0# roughing roughing extension coefficient to solve the problem of excessive and optimize pass system. Combined with the bar mill line increase a roughing mill,make products covered by the original former factory Φ12, Φ14, Φ15 specifications. Focus on the reduction and extension of the rational allocation coefficient, in particular to reduce excessive roughing extension coefficient problem, Roughing pass the existing system to the oval-round system. Each pass through the existing electrical, mechanical ability to test and improve the conditions for pass design and verification.
Key Words: bar rolling; pass design; force calibration.
目录
摘要 i
Abstract i
目录 ii
1绪论 1
1.1 棒材的用途 1
1.2 棒材发展前景 1
1.3 棒材生产特点和工艺 3
1.3.1 坯料 3
1.3.2 加热和轧制 3
1.3.3 棒材的冷却和精整 3
1.4 国内外连续棒材轧机孔型情况 4
2 轧机的类型及布置 7
2.1 轧机形式对比 7
2.1.1 开式机架 7
2.1.2 闭式机架 7
2.1.3 半闭口机架 7
2.1.4 短应力线轧机 7
2.1.5 平立可转换轧机 8
2.2 轧机布置比较 9
2.2.1 横列式布置轧机 10
2.2.2 连续式布置的轧机 10
2.3 轧机机架布置 10
2.4 轧辊参数 10
2.4.1 轧辊轴承 11
3 孔型系统设计 12
3.1 孔型设计的要求与基本原则 12
3.2 延伸系数的分配 12
3.3 轧制各道次面积确定 14
3.4 箱型孔型系统 15