【正文】 摘要 I 摘 要 圍繞 25工字鋼孔型軋制生產(chǎn)，主要進(jìn)行 25工字鋼的孔型設(shè)計(jì)。針對(duì)鋼材的斷面特點(diǎn)，經(jīng)過(guò)理論分析，設(shè)計(jì)了一套全直軋孔型系統(tǒng)。運(yùn)用這套孔型系統(tǒng)將粗軋和精軋兩個(gè)階段有效的結(jié)合在一起，并在孔型系統(tǒng)中設(shè)計(jì)了一道預(yù)切深孔型，以利于切深孔切深，防止不均勻變形過(guò)大所產(chǎn)生的一些缺陷。 文中根據(jù)所給出的軋機(jī)條件對(duì) 25工字鋼按照 4331 形式進(jìn)行了較為合理的孔型配置。從實(shí)用性出發(fā)，考慮設(shè)計(jì)簡(jiǎn)化、加工和調(diào)整的方便設(shè)計(jì)了導(dǎo)衛(wèi)裝置。 文中從理論上通過(guò)對(duì) Q235 軋制工藝分析，采用了鋼坯下料 清理 加熱 軋制 鋸切 寫(xiě)號(hào) 冷卻 矯直 定徑 打印 檢查 分級(jí) 涂色 打捆 入庫(kù)工藝流程。 采用 CAD、 PRO E 等軟件完成了孔型圖、導(dǎo)衛(wèi)裝置圖、配輥圖等的開(kāi)發(fā)與設(shè)計(jì)。設(shè)計(jì)結(jié)果為 25工字鋼，在生產(chǎn)上的應(yīng)用將具有很好的指導(dǎo)意義。 關(guān)鍵詞 工字鋼，熱軋，孔型設(shè)計(jì)，孔型加工 ABSTRACT II ABSTRACT Pass around the 25 Isteel rolling production, mainly of the pass 25 Ibeam design. Characteristics for the steel crosssection, after the theoretical analysis, design a set of systemwide pass rolling straight. The use of this system will pass rough rolling and finishing a twostage bination of effective and pass system designed to work together in the deephole precut type, depth of cut in order to cut deep, to prevent excessive nonuniform deformation arising from a number of shortings. Paper mill under the given conditions on the 25 Ibeam in accordance with the 4331 form a more reasonable configuration pass. From the practical point to consider simplifying the design, processing and adjustment to facilitate the design of the guide and guard. Adopt CAD and pro e graphics software pleted secundum map Introduction Wei device map allocation roller map development and design. Design results 25 Isteel in production Application will have good guiding significance. Key words Isteel, Hotrolled, Pass design, Pass processing 目 錄 1 目 錄 摘 要 ................................................................................................................................................ I ABSTRACT ......................................................................................................................................... II 1 緒論 ........................................................................................................................................... 1 引言 .................................................................................................................................... 1 工字鋼生產(chǎn)現(xiàn)狀 ................................................................................................................ 2 孔型設(shè)計(jì)及現(xiàn)狀發(fā)展 ........................................................................................................ 3 總結(jié) .................................................................................................................................... 4 2 攀鋼軌梁廠設(shè)計(jì)概況 ............................................................................................................... 6 廠房建設(shè)情況 .................................................................................................................... 6 設(shè)計(jì)規(guī)模的設(shè)想 ............................................................................................................... 6 主要設(shè)備 .......................................................................................................................... 6 型鋼主要生產(chǎn)工藝 ............................................................................................................ 6 開(kāi)坯 ................................................................................................................................. 6 加熱、軋制 ...................................................................................................................... 7 精整 ................................................................................................................................. 7 原料的選擇及清理 ............................................................................................................ 8 原料的選擇 ...................................................................................................................... 8 原料的檢查和清理 ............................................................................................................ 8 原料加熱和加熱爐 ............................................................................................................ 9 原料的加熱 ...................................................................................................................... 9 加熱爐 ............................................................................................................................. 9 3 25a 工字鋼軋制工藝設(shè)計(jì) ......................................................................................................10 工字鋼的生產(chǎn)工藝流程 ...................................................................................................10 孔型設(shè)計(jì) ...........................................................................................................................11 孔型系統(tǒng)的選擇 .............................................................................................................. 11 孔型系統(tǒng)的優(yōu)缺點(diǎn) ........................................................................................................... 11 孔型 設(shè)計(jì)原則 ..................................................................................................................12 延伸系數(shù)的分配 ..............................................................................................................12 腿部變形原則 ..................................................................................................................13 確定腿尖 a、腿根 b的尺寸 .............................................................................................13 目 錄 2 孔型系統(tǒng)計(jì)算 ..................................................................................................................13 軋制規(guī)程設(shè)計(jì) ...................................................................................................................21 950開(kāi)坯