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ID:33735151
大小:1.36 MB
页数:30页
时间:2019-02-28
《含铝冷镦钢生产工艺分析与质量控制》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第1I页武汉科技大学硕士论文ABSTRACTAseriesofhighqualityaluminumkilledcoldheadingsteelcoilandrodsfromgradeXSWRCH6AtoXSWRCH35Ahavebeendevelopedbyhotmentalpretreatment--topandbottomcombinedblownconverter—billetcasting—二billettest.jIlighspeed、历re—Irodmillprocess,usingthewireswhichcontai
2、nbariumtodeoxidizeandchangeinclusions’properties.Strictlycontrollingproductiontechnologyfromconvertersmelting,LFrefiningandcontinuouscastingtorollingtoellsurequalifiedchemicalcompositionsofS,只Als,T.o'inclusioncontent,themetallurgicalstructuresunderhotrollingstateareform
3、edbyferritewithcrystalgrain8~8.5grade,alittleofgranularpearliteandbainte.Reasonscausingahigherunqualifiedratioofcoldheadingwirerodareanalyzedinthispaper.Theresultshowsthatthebreakismainlyduetohighyieldstrengthofwirerod,unevenmicrostructures,fineferritegrainsinternallyan
4、dwidmanstattemferriteappearingatedges.Based011theresearchwork,correspondingmeasuresareputforwardandcarriedout.Everyclassesofaluminumkilledcoldheadingsteelshaveexcellentmechanicalproperties.Thequalifiedrateby1/3coldheadingtestreaches98.6%,andby1/4coldheadingtestreaches97
5、.7%.Keywords:aluminumkilledcoldheadingsteel:complexdeoxidizer:qualitycontrol;refiningprocess2.1湘钢含铝冷镦钢产品品种⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..82.2含铝冷镦钢生产工艺及主要设备特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.8。.2.2.1生产工艺流程⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82.2.2生产工艺特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.82.2.3主要设备特点⋯⋯⋯⋯⋯⋯
6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯9第三章影响含铝冷镦钢开裂的原因分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ll3.1SWRCH22A冷镦钢盘条的化学成分及其影响⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯:⋯⋯⋯⋯.113.2SWRCH22A冷镦钢盘条的试验与分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯123.2.1第一次冷顶锻试验⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯123.2.2第二次冷顶锻试验⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.133.2.3第三次冷顶锻试验⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.143.3SW
7、RCH22A冷镦钢盘条夹杂物的初步研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..173.3.1夹杂物的形状与分布⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯173.3.2夹杂物的成分与种类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..173.3.3夹杂物的变形行为⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.183.4结论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..18第四章用含钡合金对冷镦钢脱氧⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯194.1试验材料及方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯194.2试验结果及分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯204.2.1全氧含量的变化情况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯20第Ⅳ页武汉
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