简介:热卷的多相的钢的机械性质上的热变丑和随后的austempering的影响被调查。处理的Thermo机械的控制(TMCP)被使用一个实验室进行热滚动工厂完成卷减小的三种不同类型,和有我们重新申请的各种各样的等温的成立持续时间的austemperings。结果证明了由多角形的铁酸盐,小粒的巴菌体和大量稳定的保留的奥氏体组成的多相的微观结构能被卷过程控制获得。机械性质与因为保留的奥氏体的稳定,增加变丑的数量增加。最终的张力的力量(sigma_b),全部的延伸(三角洲)和全部的延伸(sigma_b中心点三角洲)到达最大的价值(791MPa,36%和28476MPa百分比,分别地)在最佳的过程。
简介:<正>About20travelersandIwerecrammedonabusonthewindingroadbetweenBaoshanAirport,about530kilometersawayfromKunming,capitalofSouthwestChina’sYunnanProvince,andTengchong.WewereonourwaytoseesomedormantvolcanoesaroundTengchong,aplacewell-knownforitsuniquegeographicsceneryinwesternYunnan.Itwasabrightdaywithasteadybreeze,idealforalongtrip.Theshuttlebusrattledconsiderablyasitracedalongthedustyroadwith
简介:Experimental Study of Decay of Hot NucleiExperimentalStudyofDecayofHotNuclei¥WangSufang;TanJilian;SongMingtao;ZhangChong;HeZh...
简介:Theliningofblastfurnacemaybedamagedpartly,sothatgunningrepairisneeded.Thebondingstrengthofboundarysurfacebetweentherepairinglayerandremainedliningofblastfurnacehasbeenstudiedbythermalsimulation.Thefactorsinfluencingthebondingstrengtharetheingredientgunningrepairtemperature,remainedliningconditionandwatercontentofgunningrefractory.Thebondingstrengthdecreaseswiththeincreasesofremainedliningtemperature.
简介:Thepaperdescribestherecentdevelopingsituationandthelatestresearchachievementsofrefractoryforhotmetalpretreatment.Therelationshipamongdesiliconization,dephosphorizationanddesulphurizationtechniquesandthemaincorrosionreactionsbyvarioustreatingagentsisanalyzed.Someimprovingmeasuresforseveralproblemsinpracticeareputforwardwhileweanticipatethefuturedevelopingdirectionofrefractoryforhotmetalpretreatment.
简介:AmoregeneralmodeldescribingPCMclose-contactmeltingoutsideahotsphereisdevelopedwiththeaidofintroducingaparamterαandpresentingasupplementaryequationforthefirsttimeinthispaper.Thegoverningintegral-differentialequationsaresolvedbynumericalmethod.Themelt-filmthicknessvariationalongthesurfaceofsphereisobtainedreasonablyduetotheconsiderationoftheinterfaceshapemoreprecisely,ThecalculationresultesofPecletnumber,heattransferredandpressuredistributionarealsocomparedwiththatinliterature,Themodelpresentedinthispapercandescribethewholeclose-contactregionandthewholecontactmeltingprocess.Close-contactmeltinginsphericalorcylindricalcapsulestowhichthemodelcanbeextendedisalsodiscussedbriefly.