【正文】 ..................................................... 3 廠址的選擇 ..................................................................................................... 4 第 2 章 產(chǎn)品大綱及坯料選擇 ...................................................................................... 5 產(chǎn)品大綱的確定 ............................................................................................. 5 編制產(chǎn)品大綱的原則 .......................................................................... 5 產(chǎn)品方案的主要內(nèi)容 .......................................................................... 5 產(chǎn)品大綱 .............................................................................................. 5 坯料選擇 ......................................................................................................... 5 連鑄坯的特點(diǎn) ....................................................................................... 5 鋼坯的特點(diǎn) ........................................................................................... 6 小鋼錠的特點(diǎn) ....................................................................................... 6 坯料選用時(shí)所考慮的因素 ............................................................................. 6 鋼坯規(guī)格及允許偏差 ........................................................................... 6 坯料長(zhǎng)度與重量選擇 .......................................................................... 7 第 3 章 軋機(jī)的選擇 ...................................................................................................... 8 軋機(jī)型式對(duì)比與選擇 ..................................................................................... 8 開式機(jī)架 .............................................................................................. 8 閉式機(jī)架 .............................................................................................. 8 半閉口機(jī)架 ........................................................................................... 8 短應(yīng)力線軋機(jī) ...................................................................................... 8 平立可轉(zhuǎn) 換軋機(jī) .................................................................................. 9 軋機(jī)布置選擇比較 ....................................................................................... 10 橫列式布置軋機(jī) ................................................................................ 11 連續(xù)式布置的軋機(jī) ............................................................................ 11 棒材軋制工藝流程 ....................................................................................... 12 軋機(jī)機(jī)架數(shù)確定 ........................................................................................... 12 軋輥的各個(gè)參數(shù) ........................................................................................... 13 軋輥的材質(zhì)選擇 ................................................................................ 13 軋輥直徑 ............................................................................................ 14 河北聯(lián)合大學(xué)輕工學(xué)院 ii 輥身長(zhǎng)度 ............................................................................................ 15 軋輥軸承 ............................................................................................ 15 軋輥的調(diào)整機(jī)構(gòu) ................................................................................ 15 第 4 章 孔型系統(tǒng)選擇與設(shè)計(jì) .................................................................................... 17 孔型設(shè)計(jì)的要求與基本原則 ....................................................................... 17 孔型系統(tǒng)的選擇 ........................................................................................... 17 箱形孔型系統(tǒng) .................................................................................... 17 橢圓－圓孔型系統(tǒng) ............................................................................ 18 典型產(chǎn)品 θ26孔型設(shè)計(jì) .............................................................................. 18 分配延伸系數(shù) ............................................................................................ 18 軋制各道次面積的確定 .................................................................... 20 各道次軋件尺寸及孔型尺寸計(jì)算 .................................................... 20 配輥 ............................................................................................................... 26 孔型沿輥身長(zhǎng)度方向的配置 ............................................................ 26 孔型在軋制面垂直方向的配置 ........................................................ 27 第 5 章 軋制節(jié)奏圖表與產(chǎn)量計(jì)算 ............................................................................ 29 咬入角的計(jì)算 ............................................................................................... 29 前滑值的計(jì)算 ............................................................................................... 29 軋輥的線速度、轉(zhuǎn)速及電機(jī)轉(zhuǎn)速確定 ....................................................... 30 軋制節(jié)奏圖表 ............................................................................................... 32 軋制間隙時(shí)間 ............................................................................................ 32 軋制節(jié)奏時(shí)間 .................................................................................... 33 軋制總延續(xù)時(shí)間 ................................................................................ 33 軋鋼機(jī)產(chǎn)量計(jì)算 ........................................................................................... 34 軋鋼機(jī)產(chǎn)量概述 ................................................................................ 34 車間的年產(chǎn)量計(jì)算 ............................................................................ 36 車間金屬平衡 ....................................................................................... 37 提高軋鋼機(jī)產(chǎn)量的主要途徑 ........................................................................ 38 第 6 章 力能參數(shù)的校核 ............................................................................................ 39 軋制溫度的計(jì)算 ........................................................................................... 39 軋制力能計(jì)算及電機(jī)校核 ........................................................................... 43 平均單位壓力的計(jì)算 .................