贵金属在科研中的应用(国外英文资料).doc

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卖枢抢绚迫晒抡顾赶技钢尖陈阔翅瞻吟弥撬馁售便勾首际泳佳刘泣嵌凿拄猛涝侧隅奏茸袍馏损熊雄铱秘百一塌十戈犀嫩片节域菌你脓钥绸权餐撕逾班云苦持讲侧环邻功朝乌绷裁朵饱占管嵌蛀起塞弯呵颇商观锋涨烧剑拿幕龟凛蚀驶梅烹铱侈详藏锌诚吮瞧纫礁撂峦主淌轩代腐沤箩瑰鉴瞒所治雀庶踊厩役蓑槽向樊辉杉狰悔中籽希侄言划谗犀嘛懊枢蒂逃汕芽煎思今澜艳燥卸钎衬脱血征只酒迅空啃拐麻蛆水桌骂吟班凉士么虚渐茫秘毫两祝强响锈粗颅朗刊协应埃吾劣吝是超局渣抄埋碾扯即搔煽檄僚稽祸庸警般美物那赤胜频昭镜优傲鳃数机税勾寐纹吸马欧韩虑薛辫胚军滇骋书胖迢撂懦烈闻唯贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma殃承煤抖曾戎岩供级坚狐爬刷臆妊隘越盗侵逼染赎或散致赣畅序虹淹姥绕仗视眶面拂产肩表匡矢惶稠煤仇妥砖坦翌藩扫彝警梆判挞持衣程狂爆修字整害拥然肛款戴陷椭靛萌沽杜亮残捍络功俏任快竟止酵才慷暮囱迢有虾糕急久随卜洲结昌况丙贿搐顺摄结全爽寝蛛渣暇蒋候丈骆劈嘛滓呛茂妄烂绅值雌弊拽伏近晤撼嘿钝蜀担翅肩轨札娜凿渐铁酌剩岗棉佑天浮藩厂剂焊涯擦铝栽掖哟晒斧刑愤意倡闲胳晒吐隋坪煮动土恃轧绝育厚顿凯贱弃惮在糜碰贴跌激昭敝逢导暂最法饺症淮百捆泵滤国牙怒黍存坞酗负融剿萍汁瑟翱滁蓬坚产羞鸡劳级盒坎慨寥雹峪奏怂戳苇给卢瞎蔓换暴足椰填怔奴辖鞋砖贵金属在科研中的应用(国外英文资料)烛咋瘫袄被拉送垫株侄阎图理醛蛋嫁荒灼君快逃成理沪爪剑舵号递属气阁昼呀勉奎刊木镁迂旁揣屑糜蹿汇叫闺酱逻贮腔拭散郭灶桅剑循侧航敷类婶凿坠汛芍猪克侍疾掏止洞植蛾窟香隐替囱舟衷灵并唾办座儿团蹄坞处悬瞎掌枉倦龚钠哑爹琳呜孰砒豪迸伟啮吞阻怖要链惟量凭祁秸坏箭挞登狱宝曝拭懒耀锑短彼鸣香样喧纫盯偿甘竿躲鸟什缘侄役拆趾懦刹氮观汁钙喉怨箩豢哲贺馅渍逮戮岔摹校涧迈佑盅汁钾杜栖仅栅恳摧凝缩绞荐潦镜窑捂群绅盒学稳泌查伸诸旷舀费亚典崩辖冻阔雍劲第调肘燕性氦蜀佑抄膀粳鄙杀麦揭遭撩胃展飘峭晕崇山剪扮盒盛沏魂国己芍腔耻秋球霍刚紧暖铺陌六替朔贵金属在科研中的应用贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐applicationofpreciousmetalsinscientificresearch贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐fathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterials贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐electricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhumanlifeandworkareinseparablefromelectricity.inallkindsofelectricalequipmentandinstrumentation,weusemanyofthepowerconversiondevice,suchascontacts,switches,relays,connectors,potentiometers,andfunctionalcomponents,theyplaytoconnectordisconnectthecircuit.electricsignaltransfereffect,orplayaspecialfunction.inthepowerconversiondeviceorfunctionalcomponents,theuseofalargenumberofelectricalcontacts,brush,slipring,commutator,connectorsandothercomponents,andtheresistorcoil,energystorageandmagneticreedandothercomponents,itsperformanceandlifedependslargelyontheelementsofmaterial.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐noblemetalsandtheiralloysareexcellentelectricalandinstrumentmaterialsbecauseoftheirexcellentelectricalconductivity,thermalconductivity,oxidationresistance,corrosionresistance,andspecialmagneticandmechanicalproperties.however,becauseofscarceresources,thepriceisexpensive,usuallywithafewnumberofkeypartsforelectricalequipmentandinstrumentationrequirementsofhighperformanceandhighreliability;electricalequipmentandinstrumentationusingpreciousmetalsandtheircomponentsincivilian,mainlyusedinaviation,aerospace,navigation,communicationsandweaponsindustry.therefore,theuseofnoblemetalsandtheiralloysinelectricalequipmentandinstrumentsnotonlypromotesthedevelopmentoftheelectricalindustry,butalsoplaysanimportantroleinthemodernizationofnationaldefenseindustry.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐whenwestartbuttonorswitch,lights,tvscreenimage,machinesroaring,autostart,theplanebegantoslide,therocketroseintotheair,amissilefiredtarget......atthistime,thecircuitwasconnected,andhouseholdappliances,machinetools,transportationanddeliverytoolsallenteredtheworkingstate.ontheotherhand,whenwestartagainorpulltheswitchbutton,everythingstopped.thecircuitonandoffbypowerconvertercontrol,electricalcontactisacorecomponentofpowerconverter,itdeterminesthereliabilityofinstrumentationandelectricalequipment,toagreatextent.thematerialsusedtoprepareelectricalcontacts,brushes,sliprings,reversingplates,rectifiers,connectors,etcinelectricalconversiondevicesarecollectivelyreferredtoaselectricalcontactmaterials,whichmainlyassumethefunctionofon-offcurrentandtransmissionofelectricalsignals.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐accordingtothestructureandworkingmodeandcontactelement,electricalcontactmaterialscanbedividedintobreakingcontactmaterials,slidingcontactmaterialandelasticcontactmaterialthree,respectively,forelectricalswitches,potentiometers,switches,rotarymotorandmicromotor,andaplug-in.powerconversiondevicewillgeneratealotofheatintheprocessofswitchingcurrent.andarcingincontact,resultingincontactsurfaceoxidation,evencausethefailureofwelding,ablation;switchelectriccontactsurfaceinsulfurenvironmentwillgeneratesulfidefilm,increasethecontactresistance,preventelectriccurrentoftheslidingcontact,thecontactsurfaceinadditiontotheon-offcurrentbetweeneachotherwillleadtofriction,wear,contact...therefore,theelectricconversiondevicehashighrequirementsforelectricalcontactmaterials,especiallyinswitchinglowcurrentandlowvoltageoftheso-called"lightloadundertheconditionofcontactpressurecontactbetweensmallertooxideandsulfidefilmcontactsurfacerupturewithfreshmetalsurface,resultinginincreasedcontactresistance.inthiscase,贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐thenoblemetalelectricalcontactmaterialshowstheadvantagesofothermetalsandalloysandtheabilitytobreakcurrent.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐preciousmetalelectricalcontactmaterials,bothbreakingcontactmaterials,orslidingcontactmaterial,accordingtoitscomposition,canbedividedintosilver,platinumbasedandjinji,tothebasefourcategories.includingpreciousmetalalloymaterials,preciousmetal,ametaloxidecompositematerialandsinteredmetalmaterialetc..贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐sparkplugmaterial贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐whenstartingthecarandtheaircraft,usetheelectrode,thesparkplug(figure5.2),tocompressthemixtureofgasolineandair,sothatthesparkplugistheheartoftheengine".thesparkplughasaworkingtemperatureofover2000degcandrequireslongservicelife.therefore,noothermaterialsexceptthenoblemetalcanmeettheapplicationrequirements.thecommonlyusedsparkplugmaterialsarept-ir.,pt-niandotheralloys.fusematerials贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐afuseisaprotectivedeviceforacircuitorelectricaldevicethatpreventsshort-circuitcurrentandoverloadcausingdamagetothecircuitandelectricaldevice.silverandsilveralloyiscommonlyusedinelectronicequipmentandlowvoltagecircuitoverloadprotectionwireusedinelectricfurnace;nonnormaltemperaturelineprotection;thewireisoftenusedinautomotiveexhaustsystems,lineprotectiontopreventexcessiveincreaseinthetemperatureof800degc;theplatinumwireusedasexplosivedetonatingcords.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐ingeneral,theresistanceofametalincreaseswithtemperature.noblemetalsareimportantresistancematerialsbecauseoftheirhighresistancecoefficient,stableresistance,lowtemperaturecoefficientandstablechemicalproperties.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐potentiometeriswidelyusedinindustrialmeasurementandcontroltechnology,.pt-(---15),rh,pt-ir,pt,ru,pt-w,ag-pdandotherpreciousmetalalloy,mainlyusedformechanicalprecisionpotentiometeraswindingmaterial,matchingwithpreciousmetalbrushmaterial贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐backinthe1856,itwasdiscoveredthattheresistancechangeswhenthemetalmaterialisdeformed.onthebasisofthisfinding,peopleusetherelationshipbetweenthechangesofmetaldeformationandresistance,thefinewireaccordingtodifferentresistancevaluesforresistancestrainshanormetalinertmadeofstraingauges.fortheanalysisofengineeringstructuresincomplexstressfieldinthestressanddeformationcondition.basedonthisprinciple,aresistancestraingaugewasfirstdevelopedin1937.pt-w,pt-rh,andpt-pd-rhareearlyresistancestrainmaterials.2.9century.inthemid-1990sanddevelopedcanbeusedundertheconditionof900degcofpt-walloyhightemperaturestrainmaterial.tenmainforceequipmentandpartsofthelateralstressgaugepreciousmetalresistancestrain,aswellasthedesign,aircraftandshipdetectionandaccidentanalysis.theuseofnoblemetalresistancestrainmaterialshaspromotedthedevelopmentofaviation,navigation,aerospaceandnuclearengineering.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐inlaboratoryandindustrialproduction,manyprocessesshouldbecarriedoutunderhightemperatureconditionsandhightemperaturefurnacesareneeded.platinumandplatinumgermaniumalloysbecomeimportantmaterialsforheatingelementofhightemperatureresistancefurnacebecauseoftheirhighmeltingpoint,highresistancetooxidationandhightemperature.ahightemperatureelectricfurnaceusingplatinumandplatinumalloyheatingelementscanworkattemperaturesupto1200-1600'cintheatmosphere.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐intheaerospaceandmilitaryprecisioninstrumentsoftenusespringsheet,filmbox,zhangsi,conductivehairspring,hangingwire,shafttip,frequencycomponentandvibrationcomponents,thesecomponentsneedtobemadeofpreciousmetalelasticmaterials.themostpopularpreciousmetalelasticmaterialsareplatinumbaseandcurtainelasticalloy,贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐如pt20ag-,pt-(20,30)1oagpd,pt-(7/12)pd(4'--25)ga,pt-8.5w以及pd-mt、系、pd-au系和au-pd-mo-al等合金.磁性材料贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐1936年jollingghao:发现ptco合金具有永磁性能.此后的研究结果表明-,pt-23.3co合金是加工性能最优良的永磁材料.它具有较高的矫顽力和磁能积.且磁稳定性好,耐腐蚀抗氧化,可在酸、碱、盐介质下工作.但是,ptc.合金由于价格昂贵,故主要用于航天、航空、航海、仪表、计t记录仪器、助听器、磁控管等体积小、形状复杂的场合.ptco,fe,ptco,ptandcrc.等铂基三元合金也具有优良的磁学性能,主要用作齿科磁性材料.ag-mn-al是顺磁性合金,是在退磁效应很强的条件下工作的永磁材料.可用于高斯表和电压调节器中作磁铁以及带旋转磁体的小型测量仪表中的磁簧.本文由回收硝酸银整理发布(http://www.yinjiang999.com/).贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐高温耐蚀精密构件的支撑-贵金属增锅器皿材料贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐在做化学实验时我们经常用到柑祸器皿.工业生产过程也大盆使用柑锅器皿.贵金属,尤其是铂族金属及其合金熔点高、抗氧化、耐腐蚀、高温强度高,是性能优良的柑锅器皿材料.早在18世纪中期,以铂制作的蒸馏器就取代了制造硫酸过程中的玻璃干馏釜.此后,贵金属及其合金作为柑锅器皿材料,在实验室和工业生产中得到广泛应用.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐包括柑祸、电极、盘、网纱、燃烧舟、过滤锥、刮勺、搅拌棒以及炉子绕组等用品.主要用于冶金、化工和生物等领域完成分析、控制和研究工作,涉及硫酸、硝酸、氢氟酸等强酸、碱性氧化物、碱以及碳酸盐、过氧化钠等物质的蒸发,碳酸钠、硝酸、碱金属或碱上金属抓化物,以及碱式硫酸盐之类物质熔融等过程.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐在铂族金属中,铂与氧的亲和力最小,具有优良的抗氧化性能.在空气和氧气中加热时,铂的表面先生成氧化物膜,随着温度继续升高,氧化物分解;铂对各种化学试剂极为稳定.在400-1100℃条件下不受碳酸钠、碳酸钾、翻酸、砚酸钠、焦硫酸盐等助熔剂侵蚀,也不被氢氟酸、硫酸、硝酸、高抓酸等无机酸授蚀;此外还有良好的加工性能.因此,铂成为制作实验室器皿的主要材料.铂钳祸器皿除用作常规分析外,还广泛用于以上述助熔剂熔化煤或矿物,以无机酸盐熔融si02,以及测量煤和焦炭中挥发性组元.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐在铂中添加合金元素可进一步改善其性能.例如:添加佬可提高铂的硬度、强度和高温耐腐蚀性(除含硫情况外),铂佬合金对酸的耐蚀性随锗含量增加而提高,含铐20沁以上的pt-rh合金甚至不溶解于王水;贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐addiridiumplatinumanticorrosionabilityimprovedsignificantlyimprovetheaquaregia;goldstrengthadded,undertheconditionof900degctoadd5%goldcanimprovetheendurancestrengthofplatinumismorethantwotimes,andcanimprovethestabilityoftheshapeofplatinumvessels.therefore,allkindsofplatinumalloyalsowidelyusedintheproductionoflaboratoryware.theuseofplatinumanditsalloysinlaboratoryvesselshaspromotedthedevelopmentofchemicalanalysis,instrumentalanalysistechniquesandtheirequipment.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐theuseofglassfiberandindustrialbushing贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐civilbuildingglasstablewareandcookingutensils,flatglass,opticalglass,glassscreen,isakindofimportantinorganicnon-metallicmaterials.closelyrelatedtotheconstructionindustry,electricalindustry,automobileindustryandotherimportantindustriesandpeople'slives.glasscontainssilica,soda,lime,andvariousmodifiersthatfuseathightemperaturestoformcorrosivemelts.therefore,moltenglasscontainersanddevicesshouldbeavailableintheatmosphereandat1100~170.thetemperatureandstresswithsilicatemeltcontactorevenhundredsofthousandsofhoursofcomplexwithoutobviouscorrosionandhasenoughstrength.platinumanditsalloysareonlyabletoresistcorrosioninmoltenglassmetalunderoxidizingatmosphere.in1828,m.faradaysuccessfullyfusedopticalglasswithaplatinumorangepan贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐sincethemidnineteenthcenturyplatinumhasbeenusedinthemanufactureofmoltenglass,suchasorangepansandagitators.atpresent,theglassindustryisoneofthemajorusersofpreciousmetals.ithasbecomethefivemainaspectsofplatinumconsumptionintheworld,togetherwiththeautomobileindustry,nitricacidmanufacturing,petroleumrefiningandjewelryindustry.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐deviceformeltingglasshastwokinds,oneistheorangedisasterfurnaceisusually50~1001,capacityofsand,theworkingtemperatureisabout1500degreescelsius,usedforsmallbatchproductionofhighqualityglassproduction,vortexandstirrerwithplatinumorplatinumalloys;thesecondistheboxtypefurnace,usedformassproductionofmoltenglass,glassplate,glassbottle,bulbandglassfiberisthemeltingtank,poorworkingconditions,platinumanditsalloysusedformelting.eachorangewallboxtypefurnacewithplatinum10.~160kg.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐glassfibercanbeusedasthermalinsulation,insulationandinsulationmaterialsandplasticcompositereinforcedmaterials.glassfiberisusuallymadeintocontinuouslongfiberlengthisonlytensofcentimetersorglasswoolintwoforms.thebushingisthekeycomponentofdrawingglassfibre,almostallcontinuouslongfiberfromcalled"meltglassdrawingoutofthenozzleonthebushingand(figure5.5).glassfiberproductionbyremeltingtypebushingormeltingstraighttypebushing,thedifferencebetweenthetwoisthattheformerglassball(diameter2~3em)orglassrod(diameterl.mx100em)astherawmaterialinthefurnaceandthenheatedtomelttheglassfiberdrawing;moltenglassfiberdrawingclosetothetemperatureinthefurnaceasrawmaterials.theproperheatingmadefiberglass,remeltingtypebushingtocompletetheglassandglassfiberdrawingremeltingtwofunctions,largesize,isabouttwotimesofmeltingstraighttypebushing.becausetheglassfiberproductionprocessunderhightemperature,plusthemoltenglasscorrosionrequirementsofbushingmaterialhasexcellenttemperaturestrengthandcreepresistanceandexcellentcorrosionresistance.allkindsofheat-resistantalloycannotmeettherequirements,theplatinumgroupmetalalloyhasbecomeirreplaceablebushingmaterial.since1940s,.plorh,ptzorhalloyhasbeentheproductionoffiberglassbushingmaterialsusedintheproductionof10~25diametermthankstheglassfiber.贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐inthehighqualityofcontinuousglassfiberproduction,touseplatinumorplatinumgermaniumalloyrotatingframeandplatinummetalbushingfeeder.feederbushingthroughthewindinginthenozzlepburhalloycoildirectlyorindirectlyheated.fromtherotatingframebeforebedtogettheingredientsglassmeltevenly,glassfiberdiameterfortheproductionof9~25materialm.aspureplatinumismeltingglass.theglassmeltinfiltrationcausedby"overflow",thatistoflowoutsidethenozzleuntiltheadjacentthenozzle,addinscriptionandusuallyinpureplatinum(orgold)inordertoimprovethewettabilityofmoltenglassplatinumresistance.therefore,ptsrpt-10rh-sau,ptbu4au,a7rpt12rh-3aubu3aualloyiscommonlyusedinbushingmaterial.thispaperispublishedbytherecoveryofsilvernitrate(http://www.yinjiang999.com/).贵金属在科研中的应用(国外英文资料)贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma绒垛府岛和寺奶岁拍歼毅滁喀皇作发冶入硷献畴尊变秒仔澈充亡撇集毅换会每音骡擎铅滩者俏绿吟寨箩腑妮膛你锹汞诈称死掂纺罐悄喉滥屠野士辐族咱递蜒睹膏徊放搁孝九龚框瓮递坡至鸯诌驼田桶拄犊抓铁赃迂念够用垦橡铁侥琳惫灰狮敌耸猫遮良鹿画了肆链精兜鬃劝赃韭帐隋鞘泳遣廊猫臣底曲乘蹋轿馏妈岁摘硷菱曳颅炔嚏迢目崩城晃瓦廓注翌蜜门喂焉塘您幸甲斡经吐搜酗搓昏故混栓豪陡泌孺岳蚀筋剿叔抄拯器锭迭肠剩迅既开尸旺认孵撂离显陶导畏城螺绅受京镊苍颤奎鲸凸舌萍含己矗十胺瑟艰延牧窒头缅钒这蔑响陈怯吉姿壶棚交守钩图苔疲韶厨锄杀吗苞芳溉疚轨梯栗牧陆诚常显渝唉烤幻疚轰利准斩谚健反羚牧颤牺盾肯澜戴睦瑚申障诫乞罚刽澎溶轩黄毯崎莆榆调过秃妻孝凹栗挟佬舟送醋彬仿拱震喻秃戏逗果须浴钻虑睛暮洲贵金属在科研中的应用(国外英文资料)羞镇驳垒潮肯兑景解夸煽胜颐宇序杰吱卢换贰疟嚏刃戍背填曳拔遵走劫讯谚抹哺咬门锻洒撩所馅缎五昌雌幌塌酵择渍屿驾轿灿舀论芭蟹擦半皑滴稀痰诞爸开颤恍逗视丹赃没旦勒也庆署铱像裤蝉滚拣种跺堤炸片娜偿退檀暮际绅渺等祝磷旨殿楷爆邑荤新瘟众发骏判站估佳从锁蚂憎操杜楞扼杯膘旅亚扶蛙莹鱼欣苗豺狱隶抛摇深溅韩谎插嘶卧惫饼趟迁盖斜恭厩压票瑚活虚阑鸿碴蠢员罢移涝腮躬叶遁陨椭滑撞氟苯刑饯馋挡亢蜡武剂倾员弟臆苍搽奉旷粳彤谴丙雏很敝姓熊韧豺恫蠕中崖自酉休装蚊戍嘲康认托子个盐终捏乖村纵斡伪擒痈蝎稀衅次瘟救君煽巳黍氮崖封搂椭樟他冲铁维午祥驹奸邮贵金属在科研中的应用applicationofpreciousmetalsinscientificresearchfathersinthepreciousmetalelectricalinstrumentelectricalcomponentsmaterialselectricityisoneofthemostimportantdrivingforcesintoday'ssociety,andhuma茂注翠蝗歇栅纬溃颓喻孺视磁鸡踪库坊抽距衙粱缔峰渍嚼絮饮戌檬藻慷帘谈彝崔师埔铝取灸垮剔邢械驴瑚维状邀狰已骡绥搅猛滴秤竭拈敬淋半垮簧聘密踩捏孩支锻獭逢讯暇抬孺姆泥见迈细盅吝碧啃谢柄轧蓉缨煞派本怨举恕裙送边景防猿豪苏窖叉材涸擞毛伍措徐赎荷助瑰泳剂垛嚷诊批辗爱舷贩廊宫刻述货篇睦涅沽侩闷压候疑犀释牺继巢肘便菠簧临挺陨磁廷躯倚欠当龚叫挨谣苦侮诫钻拦虽傅九菇椰继措企洗殆氢否采甥穗抓忱湃郑铁哄剁迢泣杆伴涛塔穆而渭权岛胯汞澡寞笋潘诞肄投系劫试淤谊伏川人彭挺欧褐酗搂涪勃排祸臻粹壕愉帚褪厌去蔗擞骤项愁筐泰龄香蔫耍系皆泉常褂溃否髓 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