【正文】 摘要 I 畢業(yè)設(shè)計(jì)（論文） 題 目 年產(chǎn) 70萬噸棒材車間工藝設(shè)計(jì) 摘要 本設(shè)計(jì)為年產(chǎn) 70 萬噸棒材車間工藝設(shè)計(jì)。品種為圓鋼和螺紋鋼的小型棒材廠， 設(shè)計(jì)中 選擇 Φ16mm的圓鋼作為典型產(chǎn)品進(jìn)行該車間的設(shè)計(jì)。 本設(shè)計(jì)采用全連續(xù)軋制生產(chǎn)工藝，全線共有軋機(jī) 18 架，其中粗軋機(jī) 6 架，中軋機(jī) 6架，精軋機(jī) 6 架，終軋最大軋制速度 為 16m/s。采用主要工藝流程為選定坯料 → 加熱 →除鱗 → 軋制（粗、中、精軋） → 冷卻（水冷、風(fēng)冷） → 打捆 → 檢查 → 入庫 。棒材以定尺交貨，橫列式、半連續(xù)式、全連續(xù)式各種軋機(jī)都可以進(jìn)行生產(chǎn)。采用全連續(xù)式平立交替布置軋機(jī)，以保證產(chǎn)量 且 減少事故。 本 設(shè)計(jì)以設(shè)計(jì)任務(wù)書 要求為指標(biāo) ，首先論述了棒材的發(fā)展概況和市場需求，然后選擇典型產(chǎn)品的產(chǎn)品大綱的制定、軋機(jī)的選擇、孔型系統(tǒng)的選擇及典型產(chǎn)品的孔型設(shè)計(jì)、力能參數(shù)的計(jì)算及校核、輔助設(shè)備的選取、車間布置等。 關(guān)鍵詞： 型鋼棒材 孔型設(shè)計(jì) 車間設(shè)計(jì) 工藝流程重慶科技學(xué)院本科生畢業(yè)論文 ABSTRACT III ABSTRACT This is the technology design for producing 700,000 tons of hot rolled bar workshop per steel with diameter of 16 mm is chosen as typical product of the workshop to be designed. And we carry out national standard during the production We use continuous rolling technology ， there is 18 mill in mon ,6 for roughing mill ,6 for medium mill ,6 for finishing mill . The largest end mill speed is about 16m/s .This paper also analyzed the contemporary rod production in China. A series of problems to be solved are put forward. The design bases on the design paper, which firstly states the development. The necessity and possibility of setting up a plant are also discussed. Then the design is set out in certain procedures, mainly including the making of prod uct outline, choosing mills, choosing pass system, designing of pass in typical products force and energy parameters calculating and checking, auxiliary equipment, choosing workshop arrangement. Keywords： bar； pass design； workshop design； technological process目錄 目錄 摘要 ............................................................................................................................................ II ABSTRACT ..............................................................................................................................III 一 緒論 ...................................................................................................................................... 1 國內(nèi)棒材生產(chǎn)研究現(xiàn)狀 .............................................................................................. 1 產(chǎn)能高 ............................................................................................................... 1 生產(chǎn)設(shè)備參差不齊 ........................................................................................... 1 管理水平逐年提高 ........................................................................................... 2 高質(zhì)量、高附加值的經(jīng)濟(jì)線材少 ................................................................... 2 國外棒材生產(chǎn)研究現(xiàn)狀 .............................................................................................. 2 棒材生產(chǎn)技術(shù)發(fā)展現(xiàn)狀 .............................................................................................. 3 無頭軋制技術(shù) ................................................................................................... 3 熱送熱裝和感應(yīng)加熱的應(yīng)用 ........................................................................... 3 低溫軋制 ........................................................................................................... 3 棒材的高精度軋制 ........................................................................................... 4 高速剪切技術(shù) ................................................................................................... 4 棒材生產(chǎn)的目的和意義 .............................................................................................. 4 二 產(chǎn)品大綱 .............................................................................................................................. 5 產(chǎn)品大綱的確定要求及內(nèi)容 ...................................................................................... 5 產(chǎn)品的標(biāo)準(zhǔn) ....................................................................................................... 5 產(chǎn)品大綱編制時(shí)應(yīng)注意的問題 ....................................................................... 5 產(chǎn)品方案的主要內(nèi)容 ....................................................................................... 5 產(chǎn)品質(zhì)量 ........................................................................................................... 6 產(chǎn)品大綱 ...................................................................................................................... 6 坯料選擇 ...................................................................................................................... 7 三 典型產(chǎn)品及其軋制工藝研究 .............................................................................................. 9 典型產(chǎn)品 ...................................................................................................................... 9 鋼中各元素的作用： .................................................................................................. 9 軋制工藝對鋼材組織、性能的影響 ........................................................................ 10 常規(guī)工藝軋制條件下 HRB335 的組織 .................................................................... 13 化學(xué)元素對 HRB335CCT 曲線的影響 .................................................................... 13 四 生產(chǎn)工藝流程 .................................................................................................................... 15 棒材軋制生產(chǎn)工藝的制定 ........................................................................................ 15 制定生產(chǎn)工藝的原則 ..................................................................................... 15 生產(chǎn)工藝流程圖 ............................................................................................. 15 生 產(chǎn)工藝的過程 ........................................................................................................ 17 坯料表面預(yù)處理 ............................................................................................. 17 坯料加熱 .............................................................................