【正文】 ................................................................................................... 22 目 錄 IV 粗軋區(qū)設(shè)備 .................................................................................................. 22 精軋區(qū)設(shè)備 ................................................................................................. 28 卷取機(jī)區(qū)主要設(shè)備 ..................................................................................... 31 第 5 章 生產(chǎn)工藝流程 ................................................................................................ 34 生產(chǎn)工藝流程 .................................................................................................... 34 生產(chǎn)工藝流程框圖 ........................................................................................... 36 工藝制度 ........................................................................................................... 37 坯料管理制度 ............................................................................................. 37 加熱制度 ..................................................................................................... 37 軋制制度 ..................................................................................................... 39 冷卻制度 ..................................................................................................... 40 卷曲制度 ...................................................................................................... 41 車間自動(dòng)化 ....................................................................................................... 42 第 6 章 軋制工藝參數(shù)設(shè)計(jì) ........................................................................................ 45 制定軋制制度的原則和要求 ............................................................................ 45 在保證設(shè)備能力允許的條件下盡量提高產(chǎn)量 .......................................... 45 在保證操作穩(wěn)便的條件下提高質(zhì)量 ......................................................... 46 道次選擇確定 ............................................................................................. 47 粗軋壓下規(guī)程 ................................................................................................... 47 粗軋壓下制度 ............................................................................................. 47 粗軋速度制度 .............................................................................................. 48 粗軋溫度制度 ............................................................................................. 50 精軋壓下規(guī)程 ................................................................................................... 51 精軋壓下制度 ............................................................................................. 51 精軋速度制度 ............................................................................................. 52 精軋軋制時(shí)間和周期的確定 ..................................................................... 52 精軋溫度制度 ............................................................................................. 55 軋制圖表 ........................................................................................................... 55 咬入能力校核 .................................................................................................... 56 各道次變形抗力 ............................................................................................... 56 計(jì)算各道的傳動(dòng)力矩 ....................................................................................... 59 軋輥輥縫和轉(zhuǎn)速的設(shè)定 ................................................................................... 61 第 7 章 電機(jī)軋輥的強(qiáng)度校核 .................................................................................... 63 靜負(fù)荷圖 ............................................................................................................ 63 等效力矩計(jì)算及電動(dòng)機(jī)的校核 ....................................................................... 64 目 錄 V 電動(dòng)機(jī)功率的計(jì)算 ........................................................................................... 65 軋輥強(qiáng)度校核 ................................................................................................... 66 支承輥彎曲強(qiáng)度校核 ................................................................................. 66 工作輥的扭轉(zhuǎn)強(qiáng)度校核 ............................................................................. 68 第 8 章 軋鋼機(jī)產(chǎn)量計(jì)算 ............................................................................................ 70 軋機(jī)小時(shí)產(chǎn)量計(jì)算 ........................................................................................... 70 軋機(jī)平均小時(shí)產(chǎn)量計(jì)算 ................................................................................... 71 ........................................................................................ 71 第 9 章 厚度控制方式 ................................................................................................ 73 預(yù)控 AGC 系統(tǒng) ................................................................................................. 74 間接測(cè)厚反饋閉環(huán)控制系統(tǒng) ............................................................................ 75 第 10 章 輥型與板形控制 .......................................................................................... 76 板型控制理論 ................................................................................................. 76 板形設(shè)定模型 ................................................................................................. 78 影響輥縫形狀的因素 ..................................................................................... 80 軋輥熱膨脹對(duì)輥縫的影響 ....................................................................... 80 軋輥的磨損對(duì)輥縫的影響 ....................................................................... 81 原始輥型對(duì)輥縫的影響 ........................................................................... 81 入口板凸度對(duì)輥縫的影響 ....................................................................... 81 軋輥凸度計(jì)算 ................................................................................................. 82 軋輥的磨損的確定