【正文】 工作時(shí)間及軋機(jī)生產(chǎn)能力分 析 .............................................................................. 11 車間工作制度和年工作小時(shí) .......................................................................... 11 軋機(jī)生產(chǎn)能力分析 ......................................................................................... 12 5 主要設(shè)備的選擇 ..................................................................................................... 13 加熱爐 ............................................................................................................. 13 爐型選擇 ............................................................................................... 13 加熱爐尺寸的確定 ................................................................................ 14 共 4 頁 第 2 頁 軋機(jī)形式以及軋輥材質(zhì)的選擇 ...................................................................... 15 軋機(jī)的選擇 ........................................................................................... 15 軋輥尺寸參數(shù)的確定 ............................................................................ 15 粗軋機(jī)組 ......................................................................................................... 17 中軋機(jī)組 ......................................................................................................... 17 預(yù)精軋機(jī)組 ..................................................................................................... 17 精軋機(jī)組 ......................................................................................................... 17 減定徑機(jī)組 ..................................................................................................... 18 6 輔助設(shè)備的選擇及計(jì)算 .......................................................................................... 18 P/F線運(yùn)輸能力驗(yàn)算 ....................................................................................... 18 “C”形鉤的運(yùn)輸周期 .............................................................................. 18 “C”形鉤數(shù)量確定 .................................................................................. 18 斯太爾摩冷卻運(yùn)輸線的選擇 .......................................................................... 19 其它輔助設(shè)備的選擇 ...................................................................................... 20 7 車間平面及起重運(yùn)輸 .............................................................................................. 23 車間平面布置 ................................................................................................. 23 車間平面布置的原則 ............................................................................ 23 平面布置的內(nèi)容 ................................................................................... 24 軋制設(shè)備間距的確定 ............................................................................ 25 車間原料和成品庫能力的計(jì)算 ...................................................................... 25 有效方式 ............................................................................................... 25 原料庫和成品庫堆放面積的負(fù)荷計(jì)算 ................................................. 25 起重運(yùn)輸設(shè)備的選擇和性能參數(shù) .................................................................. 26 其它設(shè)施的布置 ............................................................................................. 26 8 孔型設(shè)計(jì) ()................................................................................................. 27 孔型設(shè)計(jì)的準(zhǔn)備計(jì)算 ...................................................................................... 27 延伸系數(shù)的分配 ................................................................................... 27 26 道次孔型系統(tǒng)選擇 ............................................................................ 28 減定徑及精軋機(jī)組孔型設(shè)計(jì) .......................................................................... 29 圓孔型設(shè)計(jì) ........................................................................................... 29 橢圓孔型設(shè)計(jì) ....................................................................................... 32 共 4 頁 第 3 頁 預(yù)精軋 機(jī)組孔型設(shè)計(jì) ...................................................................................... 36 圓孔型設(shè)計(jì) ........................................................................................... 36 橢圓孔型設(shè)計(jì) ....................................................................................... 37 中軋機(jī)組孔型設(shè)計(jì) ......................................................................................... 39 圓孔型設(shè)計(jì) ........................................................................................... 39 橢圓孔型設(shè)計(jì) ....................................................................................... 41 粗軋機(jī)組孔型設(shè)計(jì) ......................................................................................... 43 9 軋機(jī)力能參數(shù)計(jì)算及電機(jī)設(shè)備校核 ....................................................................... 49 軋制壓力的計(jì)算 ............................................................................................. 49 平均單位壓力計(jì)算 ................................................................................ 49 總軋制壓力 ........................................................................................... 50 軋輥強(qiáng)度校核 ................................................................................................. 50 孔型在軋輥上的配置 ............................................................................ 50 軋輥強(qiáng)度校核 ....................................................................................... 51 危險(xiǎn)斷面尺寸的確定 ............................................................................ 51 軋輥強(qiáng)度校核 ....................................................................................... 51 傳動(dòng)力矩計(jì)算 ................................................................................................. 53 軋制力矩 ............................................................................................... 53 摩擦力矩 ............................................................................................... 53 空轉(zhuǎn)力矩 ....................................................................