【正文】
年產(chǎn) 490 萬噸熱軋板帶鋼車間設(shè)計 遼寧科技大學(xué)本科生畢業(yè)設(shè)計(論文) 第 I頁 年產(chǎn) 490 萬噸熱軋板帶鋼車間工藝設(shè)計 摘 要 國民經(jīng)濟(jì)建設(shè)與發(fā)展中大量使用金屬材料,其中鋼鐵材料占有很大比例,板帶鋼產(chǎn)品薄而寬的斷面決定了板帶鋼產(chǎn)品在其生產(chǎn)和應(yīng)用上有其特有的優(yōu)越條件,而熱軋帶鋼工藝的成熟,更是為冷軋生產(chǎn)提供了優(yōu)質(zhì)的原料,大大地滿足了國民生產(chǎn)和生活的需要。本車間參考鞍鋼 2150 生產(chǎn)線,設(shè)計生產(chǎn)能力為年產(chǎn) 490 萬噸, 典型產(chǎn)品為: Q345A, mm?1400mm。主要設(shè)備有三臺步進(jìn)式加熱爐,一臺粗軋除鱗機(jī),一架四輥可逆粗軋機(jī)( 5000 噸),六機(jī)架四輥精軋機(jī)組 (3 架 CVC 軋機(jī)和 3 架 PC 軋機(jī) ),三臺卷取機(jī), 及各種附屬設(shè)備 。 設(shè)計以年產(chǎn)量為基礎(chǔ),結(jié)合各產(chǎn)品的市場前景合理地分配各產(chǎn)品的產(chǎn)量,制定產(chǎn)品方案和金屬平衡。以典型產(chǎn)品為例,制定了工藝流程和壓下制度、速度制度、溫度制度、輥型制度等,并校核了軋機(jī)生產(chǎn)能力 , 計算了各項經(jīng)濟(jì)技術(shù)指標(biāo),繪制了一張車間平面圖。 在專題中詳細(xì)論述了 鋁及鋁 合金 種類 ,生產(chǎn)工藝 及應(yīng)用 。 關(guān)鍵詞: 熱軋帶鋼; 壓下規(guī)程 ; 鋁及鋁合金; 成型工藝 年產(chǎn) 490 萬噸熱軋板帶鋼車間設(shè)計 遼寧科技大學(xué)本科生畢業(yè)設(shè)計(論文) 第 II頁 Annual output of million tons of hot rolled flat steel plant process design Abstract Lots of metal materials are being used in country’s economic constructions, steel makes up a big proportion,The product of steel strip are widely produced and used because of its special superior its industrial art get close to maturity and provide cold rolled steel strip with raw material of excellent quality,which satisfy requirements of people’s lives. Refering to the 2150 Hot Rolling Strip Steel Plant of An Steel, the designed plant has an annual capability of tons for typical product of Q345A, mm? 1400 mm. The maojor facilities include: three walking beam furnaces, one descaling machine for rough rolling, one 4roll reversing blooming mill (5000 tons), one 6stand and 6roll finishing mill group (3 Continuously Variable Crown rolling mills and 3 Pair Cross rolling mills), three coilers, and appurtenances. Considering market prospect, the yield, product scheme, and metal balance of each kind of product are appropriately designed based on the annual plant capacity. For the typical product, the process flow diagram, depressing systerm, velocity system, temperature system, and crown systerm, etc. are determined. Furthermore, the production capacity of the rolling mill is checked, the economic and technical norms are cauculated, and a plane figure for this workshop is drafted. In the chapter of special topic, The species, industrial arts and use of aluminum and its alloy are discussed in detail. Key words: hot rolled steel strip, depressing schedulel, aluminum and its alloy, species and use 年產(chǎn) 490 萬噸熱軋板帶鋼車間設(shè)計 遼寧科技大學(xué)本科生畢業(yè)設(shè)計(論文) 第 III頁 目 錄 摘 要 ................................................................................................. I Abstract ................................................................................................... II 1 綜述 ...................................................................................................... 1 熱軋板帶的發(fā)展史 ............................................ 1 熱軋及熱軋的 現(xiàn)狀 ............................................ 1 熱軋定義 .............................................. 1 熱軋工藝優(yōu)點 .......................................... 2 熱軋工藝不足之處 ...................................... 2 熱軋板帶的分類 ........................................ 2 熱軋板帶鋼的規(guī)格 ...................................... 3 熱軋板帶鋼生產(chǎn)的大 體工藝流程 .......................... 4 新型軋機(jī)簡介 .......................................... 5 國內(nèi)熱軋板帶的生產(chǎn)現(xiàn)狀 ................................ 6 熱軋及熱軋板帶生產(chǎn)未來發(fā)展方向 .............................. 7 本設(shè)計的目的和意義 ......................................... 8 2 產(chǎn)品方案和金屬平衡 ................................... 9 產(chǎn)品方案的編制 ............................................. 9 產(chǎn)品方案簡介 .......................................... 9 編制產(chǎn)品方案的原則及方法 .............................. 9 選擇計算產(chǎn)品 .......................................... 9 產(chǎn)品特點 ................................................... 10 熱軋產(chǎn)品品種及產(chǎn)品鋼號標(biāo)準(zhǔn) ........................... 10 產(chǎn)品質(zhì)量標(biāo)準(zhǔn) ..........................................11 產(chǎn)品性能 ............................................. 12 確定產(chǎn)品方案 ............................................... 13 編制金屬平衡表 ............................................. 14 3 主要設(shè)備及參數(shù) 的確定 ................................. 16 加熱爐 .................................................... 16 加熱爐的主要結(jié)構(gòu)及特點 ............................... 16 加熱爐的主要尺寸 ..................................... 16 加熱溫度、時間及產(chǎn)量 ................................. 17 設(shè)備規(guī)格 ............................................. 17 粗軋主要設(shè)備 .............................................. 17 年產(chǎn) 490 萬噸熱軋板帶鋼車間設(shè)計 遼寧科技大學(xué)本科生畢業(yè)設(shè)計(論文) 第 IV頁 粗軋除鱗裝置 ......................................... 18 粗軋機(jī) ............................................... 18 精軋主要設(shè)備 .............................................. 19 帶坯邊部加熱器 ....................................... 20 切頭飛剪 ............................................. 20 精軋除鱗裝置 ......................................... 21 精軋立輥軋機(jī) F1E ..................................... 21 精軋機(jī)組軋機(jī) ......................................... 22 保溫裝置的選擇 ............................................. 25 層流冷卻 ................................................... 25 卷取設(shè)備 ................................................... 26 生產(chǎn)方案的選擇 ............................................. 29 4 軋制工藝及軋制制度的確定 ............................. 30 生產(chǎn)工藝流程 .............................................. 30 生產(chǎn)工藝簡介 ......................................... 30 生產(chǎn)工藝流程概述 ..................................... 30 加熱制度 .................................................. 31 加熱的目的 ........................................... 31 加熱的要求 ........................................... 32 加熱溫度的確定 ....................................... 32 加熱時間的確定 ....................................... 33 加熱速度的確定 ....................................... 33 壓下規(guī)程制定 ............................................. 33 根據(jù)產(chǎn)品選擇原料 ..................................... 34 粗軋機(jī)組壓下制度的制定 ............................... 34 精軋機(jī)組壓下制度的確定 ............................... 37 咬入條件校核 ......................................... 38 軋制時間制度 ........