【正文】 ............................................................................................. 17 坯料加熱 ......................................................................................................... 17 鋼材的軋制 ..................................................................................................... 18 鋼材的冷卻與精整 ......................................................................................... 19 五 軋機(jī)選擇與軋輥參數(shù) ........................................................................................................ 21 目錄 軋鋼機(jī)的選擇原則 .................................................................................................... 21 軋機(jī)型式對(duì)比選擇 .................................................................................................... 21 開式機(jī)架 ......................................................................................................... 21 閉式機(jī)架 ......................................................................................................... 21 半閉口機(jī)架 ..................................................................................................... 22 平立可轉(zhuǎn)換軋機(jī) ............................................................................................. 22 軋機(jī)布置選擇比較 .................................................................................................... 23 橫列式軋機(jī) ..................................................................................................... 23 順列式布置的軋機(jī) ......................................................................................... 24 連續(xù)式布置的軋機(jī) ......................................................................................... 24 橫列式軋機(jī)與連續(xù)式軋機(jī)的比較： ............................................................. 24 軋輥參數(shù)確定 ............................................................................................................ 25 軋輥材質(zhì)的選 擇 ............................................................................................. 25 軋輥各個(gè)參數(shù)的確定 ..................................................................................... 26 軋輥軸承 ......................................................................................................... 27 軋輥的調(diào)整機(jī)構(gòu) ............................................................................................. 28 六 輔助設(shè)備的選擇 ................................................................................................................ 29 選擇原則 .................................................................................................................... 29 加熱設(shè)備 .................................................................................................................... 29 入爐設(shè)備 ......................................................................................................... 29 出爐設(shè)備 ......................................................................................................... 29 爐型的選擇 ..................................................................................................... 30 爐子尺寸的計(jì)算 ............................................................................................. 31 導(dǎo)位、活套設(shè)備 ........................................................................................................ 32 導(dǎo)衛(wèi)裝置 ......................................................................................................... 32 活套裝置 ......................................................................................................... 32 剪切設(shè)備的選擇 ........................................................................................................ 32 飛剪機(jī) 1 ........................................................................................................ 32 飛剪機(jī) 2 ........................................................................................................ 33 倍尺剪 3 ........................................................................................................ 34 定尺剪 4 ........................................................................................................ 34 冷床的選擇 ................................................................................................................ 35 堆垛機(jī) ........................................................................................................................ 35 打捆機(jī) ........................................................................................................................ 35 七 孔型系統(tǒng)的選擇與設(shè)計(jì) .................................................................................................... 37 孔型設(shè)計(jì)理論 ............................................................................................................ 37 孔型設(shè)計(jì)的內(nèi)容 ............................................................................................. 37 孔型設(shè)計(jì)的基本原則要求 ............................................................................. 37 孔型設(shè)計(jì)的一般步驟 ..................................................................................... 38 孔型系統(tǒng)的選擇 ........................................................................................................ 38 延伸孔型系統(tǒng) ................................................................................................. 38 精軋孔型系統(tǒng) ................................................................................................. 40 孔型系統(tǒng)的排列 ............................................................................................. 40 孔型的設(shè)計(jì)計(jì)算 ........................................................................................................ 40 典型產(chǎn)品與道次計(jì)算 ..................................................................................... 40 孔型延伸系數(shù)分配與校核 ............................................................................. 42 軋制各道次面積和尺寸的確定 ..................................................................... 43 成品孔型（ K1）的設(shè)計(jì) .......................