确定轧辊入口锥和出口锥的长度首先为了校核轧辊的长度是否满足毛管咬入和扩径的要求，其次为在生产中合理使用轧辊。C在钢管生产中,穿孔工序的作用是将实心的管坯穿成空心的毛管。整个生产过程般包括穿孔，轧管和定减径工序。穿孔作为金属变形的道工序，穿出的管子壁厚较厚，铜棒长度较短，阳泉矿区35crmo28*4精密光亮管的安装施工作业内外表面质量较差，因此叫做毛管。如果在毛管上存在些缺陷，阳泉盂县35crmo28*5精密光亮管应用的特殊工艺，阳泉盂县27simn190*4精密光亮管，经过后面的工序也很难消除或减轻。所以在现代钢管生产中穿孔工序的着重要作用。a阳泉盂县断后伸长率（σ）热轧钢管主要生产工序（主要检验工序）：U聊城确定穿孔性能的有热扭转法和实际穿孔法。Lu5管坯的咬入条件是什么？热镀锌钢管广泛应用于建筑，机械，煤矿，化工，电力，铜棒铁道车辆，汽车工业，公路，桥梁，集装箱，体育设施，农业机械，石油机械，探矿机械等制造工业。
轧制带处的压下量它表示管坯直径在轧制带处的变化量，取值范围在9～12％，铜棒专业精密光亮管，精密光亮管加工，阳泉矿区35crmo28*4精密光亮管的安装施工作业20#精密光亮管厂，阳泉盂县140*8精密光亮管，45#精耐压等级高,防水性能好,防火耐高温,过载能力强,耐腐蚀,防辐射,寿命长.穿孔薄壁管取大值，厚壁管取小值。h（输送流体用无缝钢管）。主要用于工程及大型设备上输送流体管道。代表材质（牌号）为20，Q345等。U式中Tx—每个轧辊作用在管坯上的轴向摩擦力Px--每个轧辊作用在管坯上正压力轴向分量P′—后推力(般为零)Q批发商导向装置导向装置主要指导板和导盘的驱动和调整装置。qN5如何计算斜轧穿孔的变形抗力？斜轧穿孔这种穿孔方式被广泛的应用于钢管生产中，般使用圆管坯，【资讯百科在线助读】2010年高校招生全国统一考试英语（江苏卷）
试题部分听力（共两节，满分30分）做题时，紫铜板_紫铜套_紫铜棒_紫铜管_铜棒厂家-天津市津蛟金属材料销售有限公司先将答案标在试卷上，录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。节（共5小题；每小题1分，满分5分）听下面5段对话，每段对话后有一个小题，从题中所给的C三个选项中选出佳选项，并标在试卷的相应位置，听完每段对话后，你都有10秒钟的时间来回答有关小题的阅读下一小题，每段对话仅读一遍。例：Howmuchistheshirt?A￡B￡C￡答案是BWhatwillDorothydoontheweekend?AGooutwithherfriendBworkonherpaperCMakesomeplansWhatwasthenormalpriceoftheT-shirt?A＄15B＄30C＄50WhathasthewomandecidedtodoonSundayafternoon?AToattendaweddingBTovisitanexhibitionCTomeetafriendWhendoesthebankcloseonSaturday?AAT1:00pmBAT3:00pmCAT4:00pmwherearethespeakers?AInastoreBInaclassroomCAtahotel第二节（共15小题；每小题分，满分分）听下面5段对话或独白，每段对话和独白后有几个小题，从题中所给的ABC三个选项中选出佳选项，并标在试卷的相应位置，阳泉盂县35crmo28*5精密光亮管听每段对话和独白前，你将有时间阅读各个小题，每小题5分钟；听完后，各小题给出5秒钟的作答时间。每段对话和独白读两遍。听第6段材料，阳泉盂县35crmo28*5精密光亮管回答第7题。6WhatdoweknowaboutNora?ASheprefersaroomofownBShelikestoworkwithothergirlsCShelivesnearthecitycenterWhatisgoodabouttheflat?AIthasalargesittingroomBIthasgoodfurnitureCIthasabigkitchen听第七段材料，回答第9题。hasBarbarabeen?..?..听第8段材料，回答第10至12题。?..[来源:]?..?..听第9段材料，回答第13至16题。?.[来源:学。科。网]..Franksdoingwhentheaccidenttookplace?..?:::?.听第10段材料，回答第17至20题。?..?..canstudentsdointhepracticalareas??.?..第二部分：英语知识运用（共两节，满分35分）#o*m节：单项填空（共15小题；每小题1分，满分15分）请认真阅读下面各题，从题中所给的D四个选项中，选出佳选项，并在答题卡上将该项涂黑。例：.答案是B。.不填;aB.不填;;;,..—why,Jack,youlooksotired!---Well,....---Ihaven’tgotthereferencebookyet,butI’llhaveatestonthesubjectnextmonth.---Don’..,..----DoyouthinktheirtabletennisteamwillwinthefirstplaceatthecomingAsianGames?----.’,..Sofarwehavedonealottobuildalow-carboneconomy,..dueto30.---Peter,wheredidyouguysgoforthesummervacation?----We________busywithourworkformonths,..----Ihavetriedveryhardtofindasolutiontotheproblem,butinvain----whynotconsultwithFrank?Yousee,.’é,thewallsof_______arepaintedlightgreen,isreallyapeacefulplaceforus,..---Iseveryonehere?---Notyet……Look,there_______therestofourguests!.,butI’.-IprefershuttingmyselfinandlisteningtomusicalldayonSundays.-That’s_______Idon’.第二节：完形填空（共20小题；每小题1分，满分20分）请认真阅读下面短文，从短文后个题所给的D四个选项中，选出佳选项，并在答题卡上将该项涂黑。Anotherperson’:“Iwouldlikeyoutomeetthefellowwhois___37forbeingtheworstboyinthiscountyandwillprobablystartthrowingrocksatyouno___38thantomorrowmorning.”Mystepmotherwalkedovertome,___39myheadslightlyupward,andlookedmerightintheshelookedatmyfatherandreplied,“,___41thesmartestonewhohasn’tyetfoundanoutlet（释放的途径）forhisenthusiasm.”Thatstatementbegana(n)___42betweenonehadevercalledmesmart,,fromwhichhegraduatedwithmovedourfamilyintothecountysrat,wheremyfather’,sheboughtmeasecondhand___47andtoldmethatshebelievedthatIcouldbecomeaknewherernthusiasm,I___48ithadalreadlyimprovedouracceptedher___49andbegantowriteforlocalwasdoingthesamekindof___50thatgreatdayIwenttointerviewAndrewCarnegieandreceivedthetaskwhichbecamemylife’sworkwasn’tthe___51beneficiary(受益者).Myfatherbecamethe___52maninbrotherandstepbrthersbecameaphysician,adentist,alawyer,!Whenthatpowerisreleasedtosupportthecertaintyofone’spurposeandis___54strengthenedbyfaith,itbecomesanirresistible（不可抗拒的）....4[来源:Zxx]..[来源:学科网ZXXK]5第三部分：阅读理解（共15小题；每小题2分，满分30分）请认真阅读下列短文，从短文后各题所给的D四个选项中，选出佳选项，并在答题卡上将该项涂黑。AUsually,whenyourteacherasksaquestion,“What’syourname?”Everyonegivesadifferentanswer,’snames?Wheredotheycomefrom?Whatdotheymean?People’sfirstnames,orgivennames,-;“bright”;Beatricemeans“onewhogiveshappiness”;Donaldmeans“worldruler”;Leonardmeans“asbraveasalion”.Theearliestlastnames,orsurnames,(小溪)；someonewhowascalledLongstreetprobablylivedonalong,’,,:Carter—apersonwhoownedordroveacart;Potter—’sgreat-great-great-,ortheirsize,,.Somefamilynamesweremadebyaddingsomethingtothefather’-speakingpeopleadded–sor–;theRobertsfamily’’?.People’.’,..SupposeandEnglishcouplewhoseancestorslivednearaleafyforestwantedtheirnew-bornsontobecomeaworldleader,..Theunderlinedword“descendants”inthelastparagraphmeansaperson’..OtherpeoplebelievewolvesMustbeprotectedsothattheywillnotdisappearfromthewilderndss(荒野)ForKillingWolvesInAlaska，thewolfalmostdisappearedafewyearsago，．1awswereestablishedtoprotectthewolvesfromsportsmenandpeoplewhocatchtheanimalsfortheirfur．．．Manyoftheanimalshavebeendestroyedbytheverycoldwintersrecentlyandbychangesinthewildernessplantlife．Whenthedeercan’tfindenoughfood，theydie．Ifthewolvescontinuetokilllargenumbersofdeer，theirprey(猎物)willdisappearsomeday．Andthewolveswill．too．Sowemustchangethecycleoflifeinthewildernesstobalancetheecology．Ifwekilledmorewolves，wewouldsavethemandtheirpreyfromdyingout．We’dalsosavesomefarmanimals．Inanothernorthernstate，wolvesattackcowsandchickensforfood．Farmerswantthegovernmenttosendbiologiststostudytheproblem．TheybelieveitnecessarytokillwolvesinsomeareasandtoprotecttheminplaceswherethereisasmallwoIfpopulation．AgainstKillingWolvesIfyouhadlivedlongago，youwouldhaveheardmanydifferentstoriesaboutthedangerouswolf．Accordingtomoststories，hungrywolvesoftenkillpeopleforfood．Eventoday，thestoriesofthe“bigbadwoIf＂willnotdisappear．Butthefactiswolvesareafraidofpeople．andtheyseldomtravelinareaswherethereisahumansmell．Whenwolveseatotheranimals，theyusuallykilltheveryyoung．．AndhasalwaysbeenalawofnatureAlthoughsomepeoplesayitisgoodsensetokillwolves，wesayitisnonsense!Researchershavefoundwolvesandtheirpreylivinginbalance．Thewolveskeepthedeerpopulationfrombecomingtoolarge,andthatkeepsabalanceinthewildernessplantlife．Therealproblemisthattheareaswherewolvescanlivearebeingusedbvpeople．Evenifwildernesslandisnotuseddirectlyforhumanneeds．thewolvescan’,whichisoftenafarm．Thenthereisdanger．The“bigbadwolf”hasarrived!Andeveryoneknowswhathappensnext．60．Accordingtothepassage，somepeopleinNorthAmericafavorkillingwolvesforallthefollowingreasonsEXCETthat．A．therearetoomanywolvesB．theykilllargenumbersdeerC．theyattackcowsandchickensforfoodD．theydestroythewildernessplantlife6Somepeopleareagainstkillingwolvesbecause．A．wolveshelptokeeptheecologicalbalanceinthewildemessB．thereistoosmallawolfpopulationinthewildernessC．therearetoomanydeerinthewildernessD．wolvesareafraidofpeopleandneverattackpeople6Accordingtothoseagainstkillingwolves，whenwolveseatotheranimals，．A．theynevereatstrongandhealthyonesB．theyalwaysgoagainstthelawofnatureC．theymighthelpthiskindofanimalssurviveinnatureD．theydisturbtheecologicalbalanceinthewilderness6Thelastsentence“Andeveryoneknowswhathappensnext”impliesthatinsuchcases．A．farmanimalswillbeindangerandhavetobeshippedawayB．woIveswillkillpeopleandpeoplewillinturnkillthemC．wolveswilIfindenoughfoodsourcesonfamlsD．peoplewillleavetheareaswherewolvescanliveCBORDERCROSSINGSWhiletherearenorestrictionsonzheamountofmoneythatyoucanbringacrossthemustreporttoboththeUSandCanadianborderservicesamountsequaltoorgreaterthan$.PERSONALEXEMPTIONS（免税）ONPURCHASESAMERICANSRETURNINGTOTHEUSLessthan48hours:$200US48hoursormore:$800USduty-$USat3%:$50CAN48hoursormore:$:$(INCLUDINGFERRIES)Avalidpassportorpassportcard,oraNEXUScard.(ANEXUScardisaTrustedTravelerProgramthatprovidesquicktravelforpre-approved,lowrisktravelersthroughspeciallanes.)ArecentWashingtonState,NewYorkorBCdriver’:Children15yearsofageandyoungerrequireonlyabirthcertificateorcopy.(Certifiedcopiesarenotrequiredbutareadvised.)AIRTRAVELTOTHEUSAvalidpassport,anAirNEXUScard,-daytriptoNewYorkbuys$800CANworthofgoods,howmuchshouldhepaytaxonwhenreturninghome?A.$800CANB.$750CANC.$400CAND.$50CANanAmericancitizenona2-daytourofCanada,howmuchtaxdoeshehavetopayon$USworthofpurchaseswhenreturningtotheUS?A.$24USB.$48USC.$52USD.$200USdocumentationshouldacouplewitha7-year-oldchildcarrywhentheydriveacarfromCanadatoAmerica?’slicense,anAirNEXUScard,,,.ANEXUScard,.,，oneday，gettingoutofbedinBeijingandbeingatyourofficeinShanghaiinonlyacoupleofhours，andthen，afterafulldayofwork，goingbackhometoBeijingandhavingdinnerthere．Soundsunusual，doesntit?Butitsnotthatunrealistic，withthedevelopmentofChina’shigh—speedrailwaysystem．Andthat’snotaChinahasanevengreaterhigh—speedrailwayplan—toconnectthecountrywithSoutheastAsia，andeventuallyEasternEurope．Chinaisnegotiatingtoextenditsownhigh·-speedrailwaynetworktoupto17countriesin10to15years，eventuallyreachingLondonandSingapore．Chinahasproposedthreesuchprojects．ThefirstwouldpossiblyconnectKunmingwithSingaporeviaVietnamandMalaysia．AnothercouldstartinUrumqiandgothroughKazakhstanandUzbekistan，andpossiblytoGermany．ThethirdwouldstartinthenortheastandgonorththroughRussiaandthenintoWesternEurope．IfChina’splanforthehigh-speedrailwaygoesforward，peoplecouldzipoverfromLondontoBeilinginundertwodays．ThenewsystemwouldstillfollowChina’shigh—speedrailwaystandard．Andthetrainswouldbeabletogo346kilometersanhour，almostasfastassomeairplanes．China’sbullettrain(高速客车)，theoneconnectingWuhantoGuangzhou，alreadyhastheWorld’sfastestaveragespeed．Itcovers069kilometersinaboutthreehours．Ofcourse，therearesometechnicalchallengestoovercome．Therearesomanyissuesthatneedtobesettled，suchassafety，railgauge(轨距)，maintenanceofrailwaytracks．So，it’simportanttopayattentiontoeverydetail．Butthekeyissueisreallymoney．Chinaisalreadyspendinghundredsofbillionsofyuanondomesticrailwayexpansion．Chinaprefersthattheothercountriespayinnaturalresourcesratherthanwithcapitalinvestment．ResourcesfromthosecountriescouldstreamintoChinatosustaindevelopment．It’11beawin-，therailwaynetworkwilldefinitelycreatemoreopportunitiesforbusiness，阳泉盂县35crmo28*5精密光亮管tourismandsoon，nottomentionthebettercommunicationamongthosecountnes．ForChina，suchaprojectwouldnotonlyconnectitwiththerestofAsiaandbringsomemuch-neededresources，butwouldalsohelpdevelopChina’sfarwest．Weforeseethatinthecomingdecades，millionsofpeoplewillmigratetothewesternregions，wherethelandisemptyandresourcesunused．Withhigh-speedtrains，peoplewillsetupfactoriesandbusinesscentersinthewestonceandforaAndthey’11tradewithCentralAsianandEasternEuropeancountries．6China’snewhigh-speedrailwayplanwillbeawin-winprojectbecause．A．Chinawillgetmuch-neededresourcesanddevelopitswesternregionsB．ChinaandthecountriesinvolvedwillbenefitfromtheprojectinvariouswaysC．ChinawilldevelopitsrailwaysystemandcommunicationwithothercountriesD．theforeigncountriesinvolvedwilldeveloptheirrailwaytransportation，businessandtourism6Accordingtothepassage，thegreatestchallengetothenewhigh-speedrailwayplanis．A．technicalissuesB．safetyofthesystemC．financialproblemsD．maintenanceofrailwaytracks6Whichofthefollowingwordsbestdescribestheauthor’sattitudetowardsChina’shigh-speedrailwayplan?A．Critical．B．Reserved．C．．70．Whichofthefollowingmightbethebesttitleforthepassage?A．NewRailwayStandardsB．BigRailwayDreamsC．High—speedBulletTrainsD．InternationalRailwayNetwork第四部分：任务型阅读(共10小题；每小题1分，满分10分)请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个恰当的单词。注意：请将答案写在答题卡上相应题号的横线上。每个空格只填1个单词。Formorethantwentyyearsscientistshavebeenseekingtounderstandthemysteryofthe‘‘sixthsenseofdirection．Bytryingoutideasandsolvingproblemsonebyone，theyarenowgettingclosertooneanswer．Onefunnyideaisthatanimalsmighthaveabuilt-incompass(指南针)．Ourearthitselfisabigmagnet(磁体)．Soalittlemagneticneedlethatswingsfreelylinesitselfwiththebigearthmagnettopointnorthandsouth．Whenpeoplediscoveredthatideaaboutathousandyearsagoandinventedthecompass，itallowedsailorstonavigate(航海)onoceanvoyages,．Manybirdsmigratetwiceayearbetweentheirsummerhomesandwinterhomes．Someofthemflyforthousandsofkilometersandmostlyatnight．Experimentshaveshownthatsomebirdscanrecognizestarpatterns．Buttheycankeeponcourseevenundercloudyskies．Howcantheydothat?Acommonbirdthatdoesnotmigratebutisgreatatfindingitswayhomeisthehomingpigeon．Notallpigeonscanfindtheirwayhome．Thosethatcanareverygoodatit，andtheyhavebeenwidelystudied．Oneinterestingexperimentwastoattachlittlemagnetstothebirds’headstoblocktheirmagneticsense—justasaloudradiocankeepyoufromhearingacalltodinner．Onsunnydays,thatdidnotfoolthepigeons．Evidentlytheycanusethesuntotellwhichwaytheyaregoing．Butoncloudydays，thepigeonswithmagnetscouldnotfindtheirway．Itwasasifthemagnetshadblockedtheirmagneticsense．Similarexperimentswiththesamekindofresultsweredonewithhoneybees．Theseinsectsalsoseemtohaveaspecialsenseotdirection．Inspiteoftheexperiments，theideaofananimalcompassseemedprettyextraordinary．．Ascientistwasstudyingbacteriathatliveinthemudofpondsandmarshes．Hefoundaccidentallylittlerod-likebacteriathatallswamtogetherinonedirection—north．Furtherstudyshowedthateachlittlebacteriumhadachainofdenseparticlesinside，whichprovedmagnetic．Thebacteriahadmadethemselvesintolittlemagnetsthatcouldlineupwiththeearth’smagnet．Thebignewswasthatalivingthing，evenasimplebacterium，canmakemagnetite．Thatledtoasearchtoseewhetheranimalsmighthaveit..Byusingaspecialinstrumentcalledmagnetometer，scientistswereabletofindmagnetiteinbeesandbirds，andeveninfish．Ineachanimal，exceptforthebee．themagneticstuffwasalwaysinorclosertothebrain．Thus．theideaofabuilt—inanimalcompassbegantoseemreasonable．TheMagneticSense—TheLivingCompassPassageoutlineSupportingdetailsTheexistenceoftheearthmagnetandtheinventionofthenavigatingcompass◇Ourearthisabigmagnetandalittlefreely(7▲magneticneedlelinesitselfwiththeearthmagnettopointnorthandsouth.◇(7▲ontheideaabove,’built-incompasses◇Onepieceofevidenceisthe(7▲ofmanybirdsbetweentheirsummerhomesandwinterhomes.◇Birdscanrecognizestarpatternsonclearnightsandkeeponcourse(7▲undercloudyskiesThe(7▲onpigeons’andbees’built-incompasses◇Littlemagnetsweretiedtothepigeons’headsto(7▲theirmagneticsense.◇Thepigeons’magneticsenseseemedtobeaffectedon(7▲days.◇(7▲ofthemagneticstufffortheanimalcompass◇Littlerod-likebacteriawerefoundbychancetoswimtogetherinthedirectionof(7▲.◇Someanimalshadachainofdensemagneticparticlesinorclosetothe(8▲insidetheirbodies.第五部分：书面表达（满分25分）8假设你应邀参加学校组织的“英语学习师生座谈会”，请你根据下表所提示的信息，用英语写一篇发言稿，简单介绍自己英语学习的情况，并对学校今后的英语教学提出建议。自己英语学习的情况英语学习的目的英语学习的方法课外自学的途径……….对学校英语教学的建议（请考生根据自己的经历与感想，提出两至三点建议）。注意：对所给要点逐一陈述，适当发挥，不要简单翻译。词数150左右。开头和结尾已经写好，不计人总词数。文中不得提及考生所在学校和本人姓名。Dearteacherandschoolmates,1t’.参考答案，靠金属的塑性变形加工来形成内孔，阳泉盂县35crmo28*5精密光亮管上涨势头偃旗息鼓，无法做到价涨量放，阳泉盂县冷拔12*4精密无缝钢管，因而没有金属的损耗。
广泛应用于自来水工程，石化工业，化学工业，电力工业，农业灌溉，城市建设，是我国开发的个重点产品之。作输送用：给水，排水。作气体输送用：煤气，蒸气，液化石油气。作结构用：作打桩管，作桥梁；码头，道路，建筑结构用管等。技术服务s石油裂化用钢管（GB9948-8是适用于石油精炼厂的炉管，热交换器和管道钢管。B合金管（Alloypipe）是无缝钢管的种，合金管分为结构用无缝管及高压耐热合金管。主要区别于合金管的生产标准及其工业，对合金管进行退火调质改变它的机械性能。达到所需要的加工条件。其性能比般的无缝钢管多变利用值较高，合金管化学成分中含Cr比较多，耐高温，耐低温，耐腐蚀的性能。普碳无缝管中不含合金成分或者合金成分很少，专业精密光亮管，精密光亮管加工，20#精密光亮管厂，45#精等特种产品,老品牌,价位有优势,品质有保障.合金管在石油，航天，化工，电力，锅炉，军工等行业的用途比较广泛的原因因为合金管的机械性能多变化好调整。按断面形状分：圆形断面管，异形断面管q阳泉盂县产生偏心的钢管在热轧钢管生产过程中容易产生，产生的环节多半是在热穿孔时产生的：根据对自动轧管机轧后钢管的解剖分析，我们认为穿孔毛管经自动轧管机轧制后，钢管纵横向壁厚不均的形式基本上保留了穿孔毛管壁厚不均的分布特征，即轧后钢管仍具有螺旋状的壁厚不均，而且横向壁厚不均显著增大。pN般满足了次咬入的条件并不见得就能满足次咬入条件。在生产中我们常常看到，次咬入时由于轴向阻力作用，前进运动停止而旋转继续着即打滑。影响孔腔形成的主要因素有：变形的不均匀性（顶头前压缩量）
