摘 要

板带钢是钢铁产品的主要品种之一，广泛应用于工业，农业，交通运输和建筑业。宽带钢在我国国民经济中的发展中需求量很大。世界各国近年来都在注重研制和使用连铸连轧等新技术和新设备来生产板带钢。

本设计是年产300万吨的薄板带热连轧车间工艺设计。产品规格为：

?0.8~20.???1000~1600?mm。所用钢种为：碳素钢、低合金高强度钢、不锈钢。

论文主要内容包括：原料的选择、生产工艺的制定、典型产品工艺计算、主要设备和辅助设备的选择，并且对主要设备（轧辊和电机）的能力进行了校核，对车间主要经济指标、生产车间布置和环境保护，进行了设计和规划。

本设计到了预期要求，实际年产量382万吨。

关键词：热连轧，薄板带钢，工艺计算，典型产品，设备

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ABSTRACT

Strip is one of steel and iron product. It plays an important role in the industry, agriculture, transportation and construction. The demand on the small section is very enormous in our country national economy development. In recent years, many new technologies and equipments, such as continuous casting-rolling, are developed to produce the small size in cross-section alloy steel shape in the various countries. This design is the annual output of 3.0 million tons of sheet strip workshop process design. Its product specifications range from?0.8~20.???1000~1600?mm, used steels of carbon steel, high strength low alloy steel, stainless steel

The paper manly includes the selection of raw material and subsidiary equipments and main equipments, formulation of production technology, technology calculation of the typical products, check the capacity of main equipments (including rolling mills and the electric motors). Setting about the products design it plans exactly the main economic index of the workshop and its arrangement, environment production and so on.

The design achieves the desired requirements with the annual output of 3.0 million tons.

Key Word: hot rolling, sheet strip, technology calculate, typical product, equipment..

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目 录

第一章 综 述 ........................................................................................................... 7

1.1

热

国国热带本本

二

章

产

产计生钢设设

产品

品算

轧外内连

生计

计方

案

板热热轧产

的

的及方方产

产

带轧轧

技技

板板

术术目

重品案案品

大及的

钢

带带

发

的钢发

发

及点纲的的的

的展发的展展

史展发现趋意问制选编选

..........................................................................................................7

1.1.1 1.1.2 1.1.31.21.31.4第

板

..........................................................................................7

展......................................................................................7 状...........................................................................................9 势..........................................................................................10 义......................................................................................................11 题..........................................................................................................12 定..........................................................................................14

2.1 2.1.1 2.1.2

择.............................................................................................................14 制..................................................................................................14 择..................................................................................................14

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2.1.3确定产品大

纲......................................................................................................15

2.2 生产方案 ........................................................... 17

2.2.1 选择生产方案的依据 ............................................................ 17 2.2.2 制定生产方案 ........................................................................ 17

第三章 生产工艺流程制定 ...................................................... 错误！未定义书签。

3.1 制定生产工艺流程的主要依据 ........................................................ 20 3.2 生产工艺过程简述 ............................................................................ 21

第四章 坯料的选择和金属平衡 .............................................................................. 25

4.1 坯料的选择及坯料处理 .................................................................... 25 4.1.1 坯料选择 ................................................................................ 25 4.1.2 坯料尺寸 ................................................................................ 25 4.1.3 坯料检查及清理 .................................................................... 27 4.2 编制金属平衡表 ................................................................................ 28 4.2.1 确定计算产品的成品率 ........................................................ 28 4.2.2 编制金属平衡表 .................................................................... 29

第五章 轧钢机选择 .................................................................................................. 30

5.1 轧钢机选择的原则 ............................................................................ 30 5.2 轧钢机机架布置及数目的确定 ........................................................ 30 5.2.1 粗轧前立轧机（E1、E2） .................................................... 31 5.2.2 四辊可逆粗轧机（两架）（R1、R2） .................................. 31 5.2.3精轧机组（F1～F7） ............................................................. 31

第六章 典型产品工艺计算 ...................................................................................... 33

6.1 确定轧制方法 .................................................................................... 33 6.2 粗轧阶段工艺计算 ............................................................................ 33 6.2.1 粗轧阶段压下制度 ................................................................ 33 6.2.2 校核咬入能力 ........................................................................ 33 6.2.3 确定各道的轧制速度 ............................................................ 33 6.2.4 确定轧件在各道次中的轧制时间 ........................................ 34 6.2.5 轧制温度的确定 .................................................................... 35 6.2.6计算各道的平均变形速度 ..................................................... 37 6.2.7 各道的变形抗力 .................................................................... 38 6.2.8 计算各道平均单位压力 ........................................................ 38

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6.2.9 计算各道总压力 .................................................................... 39 6.2.10 计算各道的传动力矩 .......................................................... 39 6.3 精轧阶段工艺计算 ............................................................................ 42 6.3.1 压下规程的分配 .................................................................... 42 6.3.2 确定各道轧制制度 ................................................................ 42 6.3.3 确定轧件在各道次中的轧制时间 ........................................ 46 6.3.4 轧制温度的确定 .................................................................... 49 6.3.5 计算各道的平均变形速度 .................................................... 50 6.3.6 计算各道平均单位压力 ........................................................ 50 6.3.7 计算各道总压力 .................................................................... 51 6.3.8 计算各道的传动力矩 ............................................................ 51 第七章 电机能力校核 ...................................................................................... 55

7.1 R1电机能力校核 ............................................................................... 55 7.1.1 等效力矩计算 ........................................................................ 55 7.1.2 电机温升校核 ........................................................................ 55 7.1.3 电机的过载校核 .................................................................... 56 7.2 R2电机能力校核 ............................................................................... 56 7.2.1 等效力矩计算 ........................................................................ 56 7.2.2 电机温升校核 ........................................................................ 56 7.2.3 电机的过载校核 .................................................................... 56 7.3 精轧机电机能力校核 ........................................................................ 56 7.3.1 等效力矩计算 ........................................................................ 56 7.3.2 电机温升校核 ........................................................................ 56 7.3.3 电机的过载校核 .................................................................... 57

第八章 轧辊强度校核 .............................................................................................. 58

8.1 R1强度校核 ....................................................................................... 58 8.1.1 辊身强度校核 ........................................................................ 58 8.1.2 辊颈弯曲应力和扭转应力计算 ............................................ 59 8.1.3 辊头扭转强度计算 ................................................................ 59 8.1.4 接触应力计算 ........................................................................ 60 8.2 R2强度校核 ....................................................................................... 60 8.2.1 辊身强度校核 ........................................................................ 60 8.2.2 辊颈弯曲应力和扭转应力计算 ............................................ 61

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