年产400万吨热连轧带钢车间工艺设计
- 格式：doc
- 大小：1.15 MB
- 文档页数：129
本科毕业设计 题目： 年产400万吨热连轧带钢车间工艺设计
摘 要 本讲明书描述的是年产量400万吨的高精度热连轧轧板带车间设计。指定产品为深冲用热轧板带钢，规格是5.0*1250*L。 本设计首先介绍了热连轧带钢生产技术的现状和深冲用热轧卷的工艺标准、用途等。设计以提高生产效率、降低生产成本、减轻劳动强度、提高产品质量及综合经济效益为设计原则。利用现有技术资料，确定了车间工艺设计的产品方案、工艺流程和计算机操纵系统，并对要紧设备进行选型。利用相关数学模型对指定产品进行工艺设计，设 II / 2
计内容包括原料选择、变形制度、速度制度、温度制度及辊型制度的确定。依照设计结果，编制轧制图表，计算生产能力，并对轧辊强度进行验算以及电机能力校核。计算结果表明，整个车间生产流畅、指定产品工艺计算结果及所有设备强度性能符合要求，实际产量的核算满足设计产量的要求。
关键词： 热连轧带钢； 车间工艺设计； 工艺计算； 强度校核 II / 2 Abstract This is a graduation design specification about hot continual rolling of the sheet and strip steels whose production is 4 million tonsper year . The designated products is deep drawing hot rolling plate and strip steel，it's specification is 5.0*1250*L. This design first introduced the hot strip production technology status and the hot rolled deep drawing process standards, Designed to improve productivity and reduce production costs, reduce labor intensity and improve product quality and overall economic efficiency of the design II / 2
principles.Use of existing technical information, the workshop process to determine the product design program, process and computer control systems, and major equipment selection.Use of mathematical models related to the specified product process design, design elements including material selection, deformation system, speed system, temperature system and roller-type system to determine.According to the design results, the preparation of rolling charts, computing capacity, and roll intensity of motor ability of checking and checking.The results show that the workshop production of smooth, calculated and specified product technology strength properties of all equipment to meet the requirements, the actual output of the accounting output to meet the design requirements。
Key words: hot continual rolling strip，workshop process design，process calculation， strength check II / 2
目 录 1 前言 .................................................... 1 1.1 热轧板带钢的要紧生产方式 ............................ 1 1.1.1 行星轧机 ......................................... 1 1.1.2 叠轧 ............................................. 1 1.1.3 炉卷轧机 ......................................... 2 1.1.4 热连轧 ........................................... 2 1.1.5 薄板坯连铸连轧 ................................... 2 1.2 指定产品 ............................................ 3 1.2.1同类产品 .......................................... 3 II / 2
1.2.2 产品标准 ......................................... 3 1.2.3 用途 ............................................. 4 2 产品方案的确定 .......................................... 5 2.1 原料来源 ............................................ 5 2.2 要紧成品规格 ........................................ 5 2.3 板坯尺寸和技术条件 .................................. 5 2.3.1 板坯尺寸 ........................................ 5 2.3.2 板坯技术条件 .................................... 5 2.4 钢种、钢号以及相应标准 .............................. 6 2.5 产量及金属平衡 ...................................... 6 2.5.1 金属平衡表 ...................................... 6 2.5.2 板坯需求量 ...................................... 6 3 轧机的组成和布置 ........................................ 7 3.1 确定轧机组成的原则 .................................. 7 3.2 车间布置形式 ........................................ 7 3.3 加热炉的选择 ........................................ 7 3.4 粗轧机布置 .......................................... 8 3.4.1 半连续式 ........................................ 9 II / 2
3.4.2 全连续式 ........................................ 9 3.4.3 3/4连续式 ...................................... 10 3.5 精轧机布置 ......................................... 10 3.6 整个车间轧制线简图 ................................. 10 4 工艺过程的描述 ......................................... 12 4.1 板坯治理及预备 ..................................... 12 4.1.1 板坯储存 ....................................... 12 4.1.2 轧制打算和初始数据的输入 ....................... 12 4.2 板坯上料与加热 ..................................... 12 4.3 粗轧机轧制过程 ..................................... 13 4.4 精轧机轧制工艺过程 ................................. 14 4.5 带钢冷却及卷取 ..................................... 15 4.5.1 前段冷却 ....................................... 15 4.5.2 后段冷却 ....................................... 15 4.5.3 卷取过程 ....................................... 15 4.6 计算机操纵概况 ..................................... 16 4.6.1 加热炉 ......................................... 16 4.6.2 粗轧机 ......................................... 16
