【正文】 河北 聯合 大學輕工學院 QINGGONG COLLEGE, HEBEI UNITED UNIVERSITY 畢業(yè)設計說明書 設計（論文）題目： 年產 65 萬噸棒材車間工藝設計 學生姓名： 學 號 ： 專業(yè)班級 ： 學 部： 材料化工部 指導教師： 2020 年 05 月 22 日 摘 要 I 摘 要 棒材在機械軸類零件中有廣泛的應用，在軋制加工的基礎上，熱處理性能極為優(yōu)良，可以經過淬火，達到相當高的強度和韌性。作為軸類，棒材要求組織均勻，機械性能優(yōu)良。另外，提高尺寸精度可以減少車削，節(jié)省鋼材，降低成本。但 合金 鋼熱塑性差，加工性能差，軋制變形要求減少道次壓下。 根據任務書要求，設計年產 65萬噸 棒材廠。 按照車間設計的步驟，主要完成建廠經濟依據論述、產品大綱制定 、軋機比較及布置選擇、孔型系統(tǒng)的選擇及典型產品的孔型設計、速度制度和產量確定，力能參數的計算及校核、電機選擇、輔助設備的選取、金屬平衡以及水電消耗計算等。 設計中參閱了國內有關棒材軋機的先進工藝、軋機的裝備、技術、孔型系統(tǒng)，使本設計車間達到工藝合理、適合合金鋼生產。 設計采用全線無扭連軋方式。平立交替的連軋棒材方式事故少，生產效率高，產量大。 典型產品為 θ26mm 的圓鋼。為能生產各種低塑性合金棒材，采用低平均延伸系數。 設計附有車間平面圖、孔型圖及配輥圖。 關鍵詞： 車間設計；棒材 生產 ； 孔型設計；高精度 河北聯合大學輕工學院 II Abstract According to the design steps of the workshop, The following aspects are plished, such as the economic accordance of building the workshop, the distribution of output, mill parision and layout chosen, pass system chosen and pass design of classic production, velocity puting and output planned, mechnical calculation and test,auxiliary equipment chosen, metal balance and water and electricity consume,etc. According to the task requirement, an annual output of 650,000 tons of bars factory is designed. Referring to the domestic advanced rolling technology , rolling equipment, pass and auxiliary equipment choosing, specially, this ensure that the technology is reasonable and chosed equipment is advanced and there is space to produce highprofit rod . Bar is sale by sizing. All kinds of rolling mill can produce bar, such as opentrain mill, Bar to length delivery, barstyle, semicontinuous train and the continuous train. The pattern of continuous rolling bar in horizontal and vertical looper has the specility of the fewer accident, highly efficientand high output. In considering of the successfully producing, high lever automation, and stable quality controlling, the no twist continuous rolling is adopted in this classic production is θ26 bar. The workshop layout and pass paper and arrange pass paper is attached. Key words: workshop design。 bar production。 pass design。 high precision 目 錄 i 目 錄 摘 要 ........................................................................................................................... I Abstract .......................................................................................................................II 第 1 章 緒論 .................................................................................................................. 1 棒材產品的用途 ............................................................................................. 1 棒材的生產工藝 .............................................................................................. 1 棒材的生產特點 .................................................................................. 1 坯料 ...................................................................................................... 1 加熱 ....................................................................................................... 2 軋制 ...................................................................................................... 2 冷卻和精整 .......................................................................................... 2 小型棒 材軋機的低溫軋制 ............................................................................. 3 建廠依據 ......................................................................................................... 3 廠址的選擇 ..................................................................................................... 4 第 2 章 產品大綱及坯料選擇 ...................................................................................... 5 產品大綱的確定 ............................................................................................. 5 編制產品大綱的原則 .......................................................................... 5 產品方案的主要內容 .......................................................................... 5 產品大綱 .............................................................................................. 5 坯料選擇 ......................................................................................................... 5 連鑄坯的特點 ....................................................................................... 5 鋼坯的特點 ........................................................................................... 6 小鋼錠的特點 ....................................................................................... 6 坯料選用時所考慮的因素 ............................................................................. 6 鋼坯規(guī)格及允許偏差 ........................................................................... 6 坯料長度與重量選擇 .......................................................................... 7 第 3 章 軋機的選擇 ...................................................................................................... 8 軋機型式對比與選擇 ..................................................................................... 8 開式機架 .............................................................................................. 8 閉式機架 .............................................................................................. 8 半閉口機架 ........................................................................................... 8 短應力線軋機 ...................................................................................... 8 平立可轉 換軋機 .................................................................................. 9 軋機布置選擇比較 ....................................................................................... 10 橫列式布置軋機 ................................................................................ 11 連續(xù)式布置的軋機 ........................................................................