【正文】 .... 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 ........................................................................ 43 軋制壓力的計(jì)算 ................................................................................ 44 軋制力矩的計(jì)算 ................................................................................ 45 附加摩擦力矩的計(jì)算 ........................................................................ 45 空轉(zhuǎn)力矩的計(jì)算 ................................................................................ 46 靜力矩的計(jì)算 .................................................................................... 46 電機(jī)實(shí)際功率的計(jì)算 ........................................................................ 47 電機(jī)負(fù)荷的影響 ................................................................................ 47 軋輥彈跳計(jì)算 .................................................................................... 50 軋輥強(qiáng)度的校核 ........................................................................................... 51 輥身強(qiáng)度的校核 ................................................................................ 52 目 錄 iii 輥頸強(qiáng)度的校核 ................................................................................ 52 傳動(dòng)端軸頭強(qiáng)度的校核 .................................................................... 53 第 7 章 車間輔助設(shè)備的選擇 .................................................................................... 55 加熱設(shè)備的選擇 ........................................................................................... 55 爐型的選擇 ........................................................................................ 55 產(chǎn)量計(jì)算 ............................................................................................ 57 爐子尺寸的確定 ................................................................................ 57 剪切設(shè)備的選擇 ........................................................................................... 58 1＃飛剪機(jī) ........................................................................................... 58 2＃飛剪機(jī) ........................................................................................... 60 3＃倍尺剪 ........................................................................................... 60 4＃定尺剪 ........................................................................................... 61 冷卻設(shè)備的選擇 ........................................................................................... 63 冷床的結(jié)構(gòu)與形式 ........