简介：CrudeSteelOutputofChinain2008Increased1.1%YearonYearItwasreportedbyNationalBureauofStatisticsofChinaonJanuary23,2009:thecrudesteeloutputofChinainDecember2008was37.7916milliontons,decreasing10.5%yearonyear,thetotalcrudesteeloutputofChinain2008was500.4880milliontons,increasing1.1%yearonyear;thesteelproductsoutputofChinainDecember2008was48.8162milliontons,decreasing1.7%yearonyear,

简介：PredictedZincSmeltingCapacityofChinain2008WillIncrease7.8%Chinaisthelargestzincproducerworldwide.ItisreportedthatzincsmeltingcapacityofChinain2008willincrease0.35milliontons,reaching4.85milliontons,increasing7.8%yearonyear.Therefiningzincoutputwillincrease0.45milliontons,reaching4.15milliontons,increasing12.2%yearonyear.

简介：ThispaperintroducestherefractoriesusedinvariousnonferrousmetalsmeltingequipmentinChinaandtheexistingproblems,andputsforwardsuggestionsonthematerialofrefractories,applicationofnewtechnologiesandproductionmanagementofrefractories,etc.

简介：By"concealedexplosionofmagma",wemeantheexplosiveproessofmagmaundersubterraneanconcealedconditionswhichisessen-tiallysimilartovolcaniceruptionseenatthesurface;theonlydiffer-"nceisthatthelattertakesplaceinanopenenvironmentatthesurface’`vhiletheformertinasemi-openenvironmentbelowathincovernearlhesurfac

简介：BasedonPb-Pbisochrondataofmorethan40Precambrianpolymetallicdeposits,theauthorsconsiderthattherearefourmineralizationperiodsforthePrecambriancopperdepositsinChina,andthemajorcopperdepositswereformedatabout1800Ma;therearethreemineralizationperiodsforgolddepositsformedfromArchaeantoProterozoic.BystudyinghundredsofleadisotopedatafromsomeMesozoiccontinentalsubvolcanicCuandAgpolymetallicdepositsandfine-disseminatedgolddeposits,theauthorsfoundthatthecalculationbasedontheleadsingle-stageevolutionmodelortwo-stageevolutionmodelcannotgivethetrueore-formingagesbutcanprovidemoreinformationaboutmineralizationandmaterialsourcesofthedeposits.

简介：在过去的十年，biohydrometallurgy的领域里的进步是重要的。17新奇biomining微生物的一个总数被发现，并且八铜堆bioleaching种并且11黄金biooxidation植物被建立或膨胀。在这评论，它被总结为学习微生物引起的社区动力学和结构的最新孤立的biomining微生物和三个新奇微生物引起的生态的方法的生理的性质。另外，关于象铀，铝，碲，金者，铟，和第二等的稀罕金属资源那样的稀罕金属的biohydrometallurgy研究，以及象铜，镍，钴，和黄金那样的重非铁的金属被考察了，与在中国的一个重音。在未来，黄铜矿，稀罕金属，从废物的第二等的资源，和资源利用引起的环境污染的bioleaching上的进一步的研究是必要的。图形的AbstractZijinshan堆bioleaching植物与30,000的能力在2012重启操作?tonent蠨?蠨吗？？

简介：<正>XianghualingorefieldislocatedinLingwuCounty,HunanProvince.Itliesonthein-tersectionofpoly-setstructuresandbelongstononferrousrare-polymetalminetalizationse-riesrelatedtothecrust-origingraniteinactivationregion.Thestrataoftheorefieldin-volvesCambrian（∈）,Devonian（D）andCarboniferous（C）,inwhichCambrianepimeta-morphicsandstone,D2tsandstoneandD2q-D（3x）dolomiteareconsidedastheoresource-bedoftheoredeposit.Severalhigh-replacementalstocks,whichlieabovethehiddengranitebatholithwithNNWtrending,intrudealongtheintersectionofNWandNEtrendingfaults.

简介：Metallurgicalmodelingofsynergisticmicrocrackself-repairmenduringweldingsinglecrystalandpolycrystallinesuperalloysofhigh-temperatureaerospacematerialshasbeenproperlyestablished.Theideaofimprovementofnickel-basedsuperalloysweldabilitythroughnon-equilibriumsolidificationbehaviorofbackfilltoself-repairarterialcracknetworkisusefullyproposed.Crystallographiccontrolstrategyofcrackself-repairmenoffusionzoneinterdendriticsolidificationcrackingandheat-affectedzone(HAZ)intergranularliquationcrackingistechnicallyachievable,indicatingthatoptimalniobiumalloyingbeneficiallyrefinesweldmicrostructure,stabilizestheprimarysolidificationpath,increasesthesolidificationtemperatureandconcomitantlydecreasestheweldpoolgeometry.High-carbongrainboundaryismorethermalstableandlesscontributestoincipientintergranularliquidfilmthanthatoflow-carbongrainboundary.Thetheoreticalpredictionsofcrackingsusceptibilityareindirectlyverifiedinarathersatisfactorymanner.Additionally,themetallurgicalmodelingenhancespredicativecapabilitiesandtherebyisreadilyapplicableforotheralloysystems.