2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
已閱讀1頁，還剩8頁未讀， 繼續(xù)免費閱讀

下載本文檔

版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請進(jìn)行舉報或認(rèn)領(lǐng)

文檔簡介

1、19(2K_K_F_11.DOT012006IConference0INTRODUCTIONGuofengoperatesaproductioncomplexwithanannualcapacityofsomefivemilliontonseachofpigironrawsteelinTangshansituatedintheprovinceofHebeiapproximately200kilometreseastofBeijing.I

2、tmanufactureslongproductsinadditiontohotrolledmediumnarrowstripsteel.WiththehelpofthenewrollingmillthecompanyaimstoexpitsproductspectrumwithhotrolledstripInJanuary2004theSiemensIndustrialSolutionsServices(I&S)Grouphasrec

3、eivedanderfromtheChineseTangshanGuofengIronSteelGroupCo.Ltd.(Guofeng)tofitoutanewwidehotstriprollingmillwithautomationdrivesystems.Atthesametimethecontractfthesupplyoftwosinglestrmediumthicknessslabcastershasbeenawardedt

4、oSiemensVAI(fmerVoestAlpineIndustrieanlagenbau)1PLANTCONCEPTFthenewhotrollingfacilityGuofengdecidedfaconceptnamedXZSPthatbringscasterhotstripmillinaverycloseconjunction.Thetargetistocombineboththeadvantagesofacastingroll

5、ingplantwithaconventionalhotstripmill.In2000ftheAnshancasterCC4afthefirsttimethisprocessroutewasedwhichcombinestheadvantagesofconventionalproductionwiththoseofthinslabminimills.TheconceptisinChinaalsoknownasASP.Thestartu

6、psofAnshancasterCC4CC5wereacterizedbyrapidstartupcurves(e.g.10.000tonsin2ndweekofoperation118.000tonsmonthlyproductionin5thmonthsafterstartup).Theslabcasterproducesslabswithathicknessbetween135mm160mmwhichliebetweenthose

7、thatarerolledinaconventionalhotstripmill(upto250mm)thoseofacastingrollingplant(90mmdownto40mmdependingonplantconcept).Theslabsarefeseentobedirectlyhotgedintothetworeheatingfurnaceswithoutstageinbetween.Theladlesizeof85to

8、nsindicatesthepossibilityofsmallproductionlotsflexibleproductionschedulealreadyfromsteelplant’sside.Aquickreactiontothedemisalsoensured.39(2K_K_F_11.DOT012006I&SDAC)?D:wkWebUIFlexPaperFileRoot20191022188bacc2560904ed2846

9、3ab888e4b62ce47paperthetangshanguofenghotstripmill–adecisionfo.doc39due3SCOPEOFSUPPLYCASTERIn2004TangshanGuofengSteeltrustedintheASPtechnologyawardedVAIwiththecontractfsupplyof2mediumthicknessslabcasters.Bothcastersweres

10、tartedup2005successfully.TheSiemensVAIscopeofsupplyincluded:?supplyofmechanicalkeycomponents?entirecastingoperationaltechnologyaswellasmetallurgy?Level2systemincludingallprocessmodelslikeDYNACSVAIQQualityControlYieldExpe

11、rt?Level1technologicalfunctionslikeLevConmoldlevelcontrolMoldExpertDynaWidthautomaticwidthadjustmenthydraulicDynaFlexoscillatDriveCon?Advisyservices(manufactingaswellascoldhotcommissioningftheCaster).WiththiscontractSiem

12、ensVAIfurtherextendeditsmarketleadershipinthefieldofmediumthicknessslabcasterswithareferenceof11strsofthisspecifictypeonlyinChina.Table1:GeneralDatafCasterProductionData:AnnualProduction:1MtpyperstrCastingMode:Sequenceca

13、stingSteelgrades:LowmediumhighcarbongradeslowmicroalloyedgradesDesignDataMachinetype:bowtypecasterwithstraightmoldcontinuousbendingstraighteningsegmentedstrguideNumberofstrs:2x1Ladlesize:85tMachineradius:5mMetallurgicall

溫馨提示

  • 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫僅提供信息存儲空間，僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論