辽宁科技大学本科生毕业设计(论文)第I页热轧棒材车间工艺设计摘要本设计为热轧棒材车间工艺设计。产品为Φ22的热轧不锈钢,主要钢种为1Cr13,优质碳素结构钢,低合金钢,产品质量执行国家标准。根据成品规格选择尺寸为210mm×210mm×6000mm的连铸坯为原料,加热炉为三段步进梁式加热炉。本设计采用全连续轧制生产工艺,全线共有轧机22架,其中粗轧机6架,中轧机6架,预精轧机6架,精轧4架。终轧最大轧制速度为10m/s。设计中采用的孔型系统为:箱(1#)—方箱(2#)—椭(3#)—圆(4#)—椭(5#)—圆(6#)—椭(7#)—圆(8#)—椭(9#)—圆(10#)—椭(11#)—圆(12#)—椭(13#)—圆(14#)—椭(15#)—圆(16#)—椭(17#)—圆(18#)—椭(19#)—圆(20#)—椭(21#)—圆(22#)。关键词:工艺设计,热轧棒材,型钢,连铸坯辽宁科技大学本科生毕业设计(论文)第II页ProcessDesignofhotrolledbarWorkshopAbstractThisisthetechnologydesignforhotrolledbarworkshop.ThesizeoftheproductisΦ22withthemajorsteelgradeofthestainlesssteel,thecarbonconstructionalqualitysteelorthelowalloyedsteel.Andwecarryoutnationalstandardduringtheproduction.Accordingtothesizeofproductweusetheconcastbilletswiththesizeof210mm×210mm×6000mmfortherawmaterialandtheWalkingBeamHeatingFurnace.Weusecontinuousrollingtechnology,thereis22millincommon,6forroughingmill,6formediummill,6forbeforehandfinishingmill,6forfinishingmil.Thelargestendmillspeedisabout10m/s.Intheproductionofsteelrollingweusethepasssystemofchest-square-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle-ellipse-circle.Keywords:processdesign,hotrolledribbedbar,shapesteel,concast辽宁科技大学本科生毕业设计(论文)第III页bil目录1热轧棒材概述...............................................................................11.1热轧棒材的产品概况..........................................................................11.21Cr13介绍...........................................................................................31.2.11Cr13标准.................................................................................31.2.2特性及适用范围........................................................................31.2.31Cr13热处理工艺.....................................................................31.2.41Cr13特性.................................................................................31.2.51Cr13管材生产制造.................................................................41.2.61Cr13、3Cr13用途...................................................................42典型产品轧制工艺制定...............................................................52.1生产工艺流程图...................................................................................52.2坯料的选择...........................................................................................52.3坯料及成品尺寸...................................................................................62.4坯料表面预处理...................................................................................62.4.1表面缺陷清理.............................................................................62.4.2表面氧化铁皮清除.....................................................................72.5加热制度的制定...................................................................................72.5.1加热目的..........................................................