關(guān)于鞍鋼生產(chǎn)高強螺栓鋼的研究與預測.pdf

1、東北大學碩士學位論文關(guān)于鞍鋼生產(chǎn)高強螺栓鋼的研究與預測姓名：張錦剛申請學位級別：碩士專業(yè)：材料學指導教師：趙剛2000.2.1t，_●’_0AbstractThepracticabilityoftheproductionofthehighprofitablesteelsforhighstrengthboltsinAnshanIronandsteelcorporation(AISC)hasbeenstudiedwhentheregulat

2、ionoftheproductmixtowardshightechnologicalproductsisgoingtobcdoneafterthefirstperiodoftechnological—renovatingprojectsThemetallurgicalqualityandpropertiesofA35steelmadebyAISC，whichissame嬲ML35，havebeenstudiedalsoforsolvin

3、gtheproblemswhichwillbeencounteredintheproductionofhighstrengthboltsteelsinthefutureandmakinghigllqualitysteelsforhighstrengthbolts、^ritlllowcostandwithouttheuseoftheexpensiveprocessofthemakingofsteelThroughanalysingthed

4、evelopmentofthehighstrengthboltsteelsandthetechnologicalrequirementsoffabricatinghigllstrengthbolts，thelowcarbonmartensitesteelsandsteelswithoutfinalheattreatmentareconsideredtobegoingtobecurrentAccordingtothecapacityand

5、facilityofproductionafterthefirstperiodoftechnotogicalrenovatingprojectsandtheanalysisofthepracticabilityandcommercialbenefitoftheproductionofhighstrengthboltsteels，theproductionofhighstrengthboltsteelsofclass88～129inAIS

6、CisbelievedtobepracticalandhasmuchcommercialandsocialbenefitTheresultsoftheresearchesOnthecoldheading，nonmetallicinclusion，microstructu弛andmechanicalpropertiesofA35steelforhighstrengthboltSofclass88fromAISCshow：(1)A35ste

7、elmadebyconvertertappingwithskimmerballsyntheticflauxrefiningandladleargonstizringhasasatisfiedcleanlinessandthesumma矗onofinclusioninitislessthanorequalto25gradeTheinsideofthissteelhashighqualityandcoldheadingcapacity(2)