【正文】 .................................................... 10 確定軋機(jī)類型及布置形式 ............................................................................. 10 軋鋼機(jī)選擇的原則 ............................................................................... 10 確定軋機(jī)的類型及布置形式 ............................................................... 10 確定產(chǎn)品的工藝流程 ..................................................................................... 12 制訂工藝流程的依據(jù) ........................................................................... 12 生產(chǎn)工藝流程 ....................................................................................... 13 工藝流程概述 ...................................................................................... 14 第四章 設(shè)計(jì)產(chǎn)品的工藝設(shè)計(jì) .................................................................................... 15 坯料的選擇 .................................................................................................... 15 坯料的準(zhǔn)備 ..................................................................................................... 15 坯料的加熱 .................................................................................................... 15 加熱速度制度 ....................................................................................... 16 加熱溫度制度 ...................................................................................... 17 軋制溫度制度 ....................................................................................... 17 軋制速度制度 ....................................................................................... 18 第五章 產(chǎn)品的孔型設(shè)計(jì) ............................................................................................ 20 孔型設(shè)計(jì)的內(nèi)容、要求、原則 .................................................................... 20 內(nèi)蒙古科技大學(xué) 畢業(yè)設(shè)計(jì)說明書 VII 孔型設(shè)計(jì)的內(nèi)容 .................................................................................. 20 孔型設(shè)計(jì)的要求 ................................................................................... 20 孔型設(shè)計(jì)的原則 .................................................................................. 21 孔型設(shè)計(jì)的程序 ............................................................................................. 21 孔型系統(tǒng)的選擇 ................................................................................... 21 軋制道次的確定 ................................................................................... 21 確定各方、圓形斷面尺寸 .................................................................. 23 確定各中間扁軋件 的斷面尺寸 .......................................................... 23 第六章 軋制 規(guī)程的確定 ............................................................................................ 29 軋輥速度的確定 ............................................................................................. 29 道次間隙時(shí)間 ................................................................................................ 30 6. 3 軋輥的轉(zhuǎn)速 ................................................................................................... 30 軋制溫度降計(jì)算 .......................................................................................... 31 變形抗力計(jì)算 .............................................................................................. 32 軋件的變形程度 .................................................................................. 33 軋件的平均變形程度 ........................................................................... 33 軋件的變形速度 ................................................................................... 33 第七章 軋制參數(shù)的計(jì)算及電機(jī)和軋輥的校核 ........................................................ 35 軋制壓力的計(jì)算 ............................................................................................. 35 、計(jì)算單位軋制壓力 ............................................................................ 35 接觸面積的確定 .................................................................................. 35 軋制力的計(jì)算公式 .............................................................................. 36 傳動(dòng)力矩的計(jì)算 ............................................................................................ 37 軋制力矩的計(jì)算 .................................................................................. 37 附加摩擦力矩的計(jì)算 .......................................................................... 37 空轉(zhuǎn)力矩的計(jì)算 .................................................................................. 38 靜負(fù)荷圖繪制 ................................................................................................. 39 主電機(jī)校核 ..................................................................................................... 40 計(jì)算產(chǎn)品υ 32 熱軋帶肋鋼筋的電機(jī)校核 ................................................... 41 粗軋機(jī)的電機(jī)校核 .............................................................................. 41 中軋機(jī)的電機(jī)校核 .............................................................................. 41 精軋機(jī)的電機(jī)校核 .............................................................................. 42 軋輥校核 ........................................................................................................ 42 計(jì)算產(chǎn)品的軋輥強(qiáng)度計(jì)算 .................................................................. 45 第八章 軋鋼機(jī)產(chǎn)量計(jì)算 ............................................................................................ 48 軋機(jī)小時(shí)產(chǎn)量的計(jì)算 .................................................................................. 48 純軋時(shí)間 .............................................................................................. 48 軋制節(jié)奏時(shí)間 ...................................................................................... 48 軋制總延續(xù)時(shí)間 ................................................................................ 48 軋鋼機(jī)平均小時(shí)產(chǎn)量 .................................................................................... 50 車間年產(chǎn)量計(jì)算 ............................................................................................ 51 軋制圖表的繪制 ............................................................................................ 51