【正文】 II ABSTRACT This thesis is the plant design of a coldrolled steel strip plant with annual capacity of tons. The typical product is 45 steel, 1500 mm. The main equipments of the design are the latest ones in coldstrip rolling, which included: shallowtank hydrochloric acid pickling unit, the entire continuous annealing unit and the entire hydrogen hoodtype furnace, skinpass unit, slitting and shearing line and so on. The designed products included the cold rolled steel sheet, the coldrolled wide flat steel coil, the coldrolled ribbon steel coil so on. The design made the products scheme and the metal balance, designed the rolling schedule for the typical product, checked the rolling mill39。設計中所選的主體機組設備為最新發(fā)展的冷軋板帶軋制設備，它們分別是：酸軋聯(lián)合機組、罩式退火機組、平整機組、橫剪和縱剪機組、重卷機組等。設計中所生產的冷軋產品種類有：冷軋帶鋼板卷、冷軋薄鋼板、熱鍍鋅鋼卷板等。s production capacity, calculated the technical and economic indexes. A layout drawing for the designed plant was acplished. In the special topic of this thesis, The calculation of rolling force puter (C language) application, and discussed with of cold rolled plate surface longitudinal stripe defect causes for the project. Key words: Coldrolled strip steel。 metal balance sheet ； cold rolled plateAlloy 遼寧科技大學本科生畢業(yè)設計（論文） [ III 目錄 冷軋車間設計 ..................................................................................................... I 摘要 .................................................................................................................... I ABSTRACT.......................................................................................................II 目錄 ................................................................................................................. III ................................................................................................................ 1 冷軋綜述 ........................................................... 1 冷軋定義及優(yōu)勢 ................................................ 1 冷軋帶鋼生產的工藝特點 ........................................ 2 冷軋帶鋼主要產品 .............................................. 3 冷軋產品生產的發(fā)展 ............................................ 3 冷軋板帶生產現(xiàn)狀 ............................................. 4 冷軋板帶生產技術 ................................................... 6 酸洗技術 ...................................................... 6 軋制技術 ...................................................... 6 平整技術 ...................................................... 7 帶鋼涂、鍍層技術 .............................................. 8 1. 3 冷軋板帶生產的新技術及發(fā)展趨勢 .................................... 9 1. 3. 1 冷軋帶坯原 料的無酸洗除鱗工藝 ................................. 9 1. 3. 2 液氮冷卻機用于帶鋼冷軋 ....................................... 9 2 產品方案及金屬平衡 ...................................................................................11 產品方案 .......................................................... 11 編制產品方案的原則 ........................................... 11 產品方案表 ................................................... 11 金屬平衡表 ........................................................ 11 3 冷軋主要工藝流程 .....................................................................................13 冷軋板帶鋼生產的工藝流程 .......................................... 13 冷軋板帶鋼各機組生產工藝流程 ..................................... 14 酸軋聯(lián)合機組 ................................................. 14 清洗和退火 ................................................... 15 連續(xù)熱鍍鋅 ................................................... 16 涂層機組 ..................................................... 16 橫剪機組 ..................................................... 17 縱切機組 ..................................................... 17 遼寧科技大學本科生畢業(yè)設計（論文） [ IV 重卷機組 ..................................................... 17 檢查和包裝 ................................................... 17 4 主要設備選擇及參數(shù)的確定 .....................................................................19 設備組成 ......................................................... 19 機組設備 .......................................................... 19 酸洗 — 冷軋聯(lián)合機組 .......................................... 19 罩式退火爐 .................................................. 23 單機架平整機 ................................................ 26 連續(xù)熱鍍鋅機組 .............................................. 28 電鍍鋅機組 .................................................. 31 橫切機組 .................................................... 32 縱剪機組 ..................................................... 33 重卷機組 ..................................................... 34 5 軋制制度的制定 ...........................................................................................35 軋制制度選擇的依據(jù) ................................................ 35 原料的選擇 ........................................................ 35 工藝制度的確定 .................................................... 37 壓下系數(shù)的分配 ............................................... 37 張力制度 ..................................................... 39 軋制速度制度 ................................................. 40 軋輥輥型制度 ................................................. 43 軋制力的計算 ..................................................... 45 軋輥輥型、軋輥直徑及摩擦系數(shù)選擇 ............................ 45 各道次軋制力計算 ........................................... 47 6 設備校核 .......................................................................................................50 軋輥校核 ......................................................... 50 軋輥咬入能力校核 ............................................. 50 軋輥強度校核 ................................................. 50 軋輥參數(shù)的確定 ............................................... 51 軋輥強度校核 ...................................................... 52 工作輥強度計算 .............