SamplePreparationSamplingandsamplepreparationisanimportantissuebecausetraditionalmethodsusedtoobtainsamplesforoxygenandnitrogendeterminationaredifferentfromthoserecommendedforhydrogen,especiallywhensamplingmoltenmetal.Themaindifferenceinsteelsamplingproceduresforoxygen/nitrogenandhydrogenisduetothemobilityofhydrogen.Specialprecautionsmustbeusedwhensamplingforhydrogen.Frommoltensteelandiron,asamplemustbequicklyquenchedincoldwaterandchilledinarefrigerantsuchasliquefiednitrogenoramixtureofacetoneandsolidcarbondioxideinordertoreducelossesofhydrogenfromdiffusion.Lossesofoxygenandnitrogenfromdiffusionarenotaproblem.Asamplethatistakenforhydrogenandchilledinarefrigerantcanalsobeusedforoxygenandnitrogendetermination.However,asamplethatistypicallytakenforoxygenand/ornitrogendeterminationisnotsuitableforhydrogendeterminationduetohydrogenloss(diffusion).Surfacecontaminationmustberemovedbyfilingorlightgrinding,usingcarenottooverheatthesample.分析儀，就選上海禹重實(shí)業(yè)有限公司，歡迎客戶來(lái)電！山西美國(guó)LECO分析儀價(jià)格

氧氮?dú)浞治鰞x氧氮?dú)浞治鰞x是一種用于材料科學(xué)領(lǐng)域的儀器，于2016年03月09日啟用。技術(shù)指標(biāo)測(cè)量范圍：ON低氧0.0－300ppmOH低氧0.0－300ppm高氧0.0－2%高氧0.0－2%低氮0.0―300ppm低氫0.0－50ppm高氮0.0－2%高氫0.0－1000ppm靈敏度：氧0.01ppm；氮0.1ppm；氫0.01ppm。主要功能該儀器配置有16位微處理器和兩個(gè)**的分別檢測(cè)高氧和低氧的紅外檢測(cè)池。氮和氫通過(guò)雙重范圍的熱導(dǎo)檢測(cè)池測(cè)量。分析過(guò)程中可自動(dòng)實(shí)現(xiàn)從低范圍到高范圍的切換。樣品在高功率脈沖爐的石墨坩堝中加熱可達(dá)3000℃以上高溫，脈沖爐采用循環(huán)水冷卻。該儀器具有靈敏度高、性能好、測(cè)量范圍寬和分析結(jié)果準(zhǔn)確可靠等優(yōu)點(diǎn)。ONH-2000氧氮?dú)浞治鰞x是為快速、準(zhǔn)確測(cè)定銅、鋼、鑄鐵、合金、鈦、鎳、鉬、鋯、陶瓷和其它無(wú)機(jī)材料中氧、氮、氫的含量而專門(mén)設(shè)計(jì)制造的。氧氮?dú)浞治鰞x廠家直銷分析儀，就選上海禹重實(shí)業(yè)有限公司，讓您滿意，有想法可以來(lái)我司咨詢！

ONH836氧氮?dú)浞治鰞x高頻燃燒紅外檢測(cè)技分析無(wú)機(jī)材料中的碳、硫含量。采用惰性氣體保護(hù)熔融法，提供各種無(wú)機(jī)材料、鋼鐵、有色金屬、硬質(zhì)合金、難熔金屬、陶瓷等材料中寬范圍的氧氮?dú)渫瑫r(shí)分析。該儀器配置MSWindows®的軟件接口，專為觸摸屏操作定制。長(zhǎng)期的開(kāi)發(fā)研究與客戶反饋相結(jié)合，這個(gè)簡(jiǎn)單方便的軟件使得用戶可以快速完整訪問(wèn)儀器控制，分析設(shè)置，故障診斷，數(shù)據(jù)報(bào)告，**提高日常分析的效率并節(jié)省用戶寶貴的時(shí)間?？蛇x的Cornerstone®Mobile軟件功能，使得用戶可以在手機(jī)，便攜式電腦及臺(tái)式電腦上便捷的訪問(wèn)儀器數(shù)據(jù)，分析曲線圖形以及儀器的狀態(tài)，實(shí)現(xiàn)對(duì)儀器的遙控。

SummaryThedeterminationoftheamountofoxygen,nitrogen,andhydrogeniniron,steel,nickel-,andcobalt-basealloysrepresentssomeofthemostimportantqualitymetricsforthesematerials.Oxygenisusedtocreatesteelfrompigironbyremovingexcesscarbon.Oxygencontentmustbecontrolledtolimittheamountofcarbonmonoxidethatcanbeformedduringsolidificationwhichmaycauseexcessiveporosity.Nitrogenisconsideredbothanimpurityaswellasanimportantalloyingagent.Itcanbepresentasanitrideorinterstitiallyinitsgaseousform.Increasednitrogencontentisknowntoincreaseyieldandtensilestrength,thusdecreasingductilityandformability.Excessivelevelsmayevolveduringsolidificationthusincreasingporosity.Highhydrogencontentistheprimarycauseofembrittlement,blisteringandflakingduetoitshighmobilitythroughthelatticeandprovidesnopotentialalloyingbenefits.TheONH836utilizesahigh-powerelectrodefurnacetoquicklyandefficientlyreleasethetargetgasesfromwithinthesample,whichallowsforaveryrapidsimultaneousdeterminationofoxygen,nitrogen,andhydrogen.上海禹重實(shí)業(yè)有限公司致力于提供分析儀，有需求可以來(lái)電咨詢！

SoftwareFeatures&BenefitsCornerstonebrandsoftwareisdividedintofourmainsections—Analysis,Diagnostics,Settings,andInstrument—forsimplifiednavigationandorganization.Toolbars,sliders,anddrop-downmenusmakeiteasytosetparametersforcalibrationanddataprocessing.Thesoftwarealsoincludesreal-timeambientmonitors,withfullyanimatedsystemdiagrams.Advanceddiagnosticfeaturesincludeathoroughdigitalon-boardmanual,maintenanceanimations,photoillustrations,分析儀，就選上海禹重實(shí)業(yè)有限公司，用戶的信賴之選，有想法的不要錯(cuò)過(guò)哦！湖南專業(yè)分析儀哪家好

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氧氮?dú)浞治鰞x的常見(jiàn)故障及解決方法儀器啟動(dòng)時(shí)顯示。沒(méi)有水流。系統(tǒng)分析電流切斷，分析停止。這是水流探測(cè)器不正常，水泵不工作，管道堵塞。將儀器的右面板取下，觀察水流探測(cè)器，用手?jǐn)D壓補(bǔ)水塑料水瓶，發(fā)現(xiàn)水流正常，顯示正常，證明水流探測(cè)器正常，管道暢通。啟動(dòng)循環(huán)水泵，但分析儀顯示沒(méi)有水流，此時(shí)可判定水泵不正常。打開(kāi)水泵轉(zhuǎn)子密封口，啟動(dòng)泵發(fā)現(xiàn)電機(jī)正常運(yùn)轉(zhuǎn)，此時(shí)關(guān)閉進(jìn)水，拆下水泵，發(fā)現(xiàn)葉輪脫落。經(jīng)了解，判定是由于外部冷卻水停水，儀器內(nèi)循環(huán)水溫過(guò)高（水溫應(yīng)≤70℃），致使葉輪（葉輪材料PVC）熱脹并脫軸。用粘合劑粘合葉輪后再粘于葉輪軸上，待粘合劑凝固后試車，儀器運(yùn)行正常。山西美國(guó)LECO分析儀價(jià)格