美國(guó)力可LECO氧氮?dú)浞治鰞x公司介紹：美國(guó)力可公司(LECO)始于1936年，以生產(chǎn)用于冶金、機(jī)械、能源、化工、農(nóng)業(yè)、食品及科研開發(fā)領(lǐng)域的各種分析儀器。ONH836氧氣/氮?dú)?氫氣元素分析儀設(shè)計(jì)用于使用惰性氣體熔融技術(shù)對(duì)無機(jī)材料，鐵和非鐵合金以及耐火材料中的氧，氮和氫含量進(jìn)行寬范圍的測(cè)量。堅(jiān)固的樣品加載區(qū)域可簡(jiǎn)化日常維護(hù)并大程度減少大氣污染用于氧氣檢測(cè)的三重紅外電池可實(shí)現(xiàn)業(yè)內(nèi)大的檢測(cè)范圍通過自動(dòng)化選項(xiàng)提高實(shí)驗(yàn)室生產(chǎn)率可用的自動(dòng)清潔器大程度地減少了兩次分析之間的手動(dòng)清潔需求適用于坩堝和樣品的20位往復(fù)式裝載機(jī)安裝在動(dòng)臂上的觸摸屏界面可提供更好的人體工程學(xué)設(shè)計(jì)和直觀的操作紅外（IR）和熱導(dǎo)率（TC）檢測(cè)器，沒有活動(dòng)部件，也無需手動(dòng)調(diào)節(jié)改善TC電池的穩(wěn)定性可繞過的OMI-2載氣洗滌塔，提高了TC電池的穩(wěn)定性獲得Dyanamic流量補(bǔ)償可進(jìn)一步增強(qiáng)TC細(xì)胞的穩(wěn)定性配置SmartLine? Remote遠(yuǎn)程診斷功能。江蘇美國(guó)LECO分析儀

SamplePreparationSamplingandsamplepreparationisanimportantissuebecausetraditionalmethodsusedtoobtainsamplesforoxygenandnitrogendeterminationaredifferentfromthoserecommendedforhydrogen,especiallywhensamplingmoltenmetal.Themaindifferenceinsteelsamplingproceduresforoxygen/nitrogenandhydrogenisduetothemobilityofhydrogen.Specialprecautionsmustbeusedwhensamplingforhydrogen.Frommoltensteelandiron,asamplemustbequicklyquenchedincoldwaterandchilledinarefrigerantsuchasliquefiednitrogenoramixtureofacetoneandsolidcarbondioxideinordertoreducelossesofhydrogenfromdiffusion.Lossesofoxygenandnitrogenfromdiffusionarenotaproblem.Asamplethatistakenforhydrogenandchilledinarefrigerantcanalsobeusedforoxygenandnitrogendetermination.However,asamplethatistypicallytakenforoxygenand/ornitrogendeterminationisnotsuitableforhydrogendeterminationduetohydrogenloss(diffusion).Surfacecontaminationmustberemovedbyfilingorlightgrinding,usingcarenottooverheatthesample.江蘇進(jìn)口分析儀供應(yīng)商力可***儀器采用觸摸屏技術(shù)和在線軟件平臺(tái)，增強(qiáng)了儀器的可操作性、降低了分析成本、節(jié)省實(shí)驗(yàn)室桌面空間。

氧氮?dú)浞治鰞x的常見故障及解決方法儀器啟動(dòng)時(shí)顯示。沒有水流。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，但分析儀顯示沒有水流，此時(shí)可判定水泵不正常。打開水泵轉(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。

MethodSelectionTwomethodsaredescribedinthisapplicationnote;eithermethodcanbeusedtoanalyzeiron,steel,nickel-,andcobalt-basealloys.ThePrecisionMethodisrecommendedforgeneraluseandwillprovidethebestprecisionandaccuracythroughoutthetypicalO,N,andHconcentrationsfoundinthisgroupofmetals;approximatecycletimeis3.5minutes.TheFastTrackmethodcanbeusedwherespeedofanalysisisacriticalcomponent;forexample,whenmoltenmetalisbeingsampledandresultsarerequiredintheshortestpossibletime.Thismethodwillproducesuitableresultsformostsamples;approximatecycletimeis2.25minutes.Asnotedabove,samplingandsamplepreparationarekeyelementstoaccurateO,N,andHdeterminationaswell.Itisuptotheusertodeterminewhichmethodbestmeetstheirneeds.***觸摸屏技術(shù)，用戶友好界面軟件進(jìn)行校正、分析、診斷等。

Procedure–Powder/ChipSamplesPreparetheinstrumentasoutlinedintheoperatorsinstructionmanual.Determinetheinstrumentblank.LoginaminimumofthreeBlankreps.PresstheAnalyzebuttonontheinstrumentscreen.Afterashortdelay,theloadingheadslide-blockwillopen.Inserta***NickelCapsule(leavecapsuleopen)intotheopenportattopofloadinghead.Note:samplesusingautomationshouldbeplacedintheappropriateautoloaderpositionbeforestartingtheanalysissequence.Oncethesequencehasstarted,theautomaticanalysiswillstartandendautomatically.氧高低雙量程采用3個(gè)碳紅外檢測(cè)一氧化碳和二氧化碳，保證準(zhǔn)確定量。廣東美國(guó)LECO氧氮?dú)浞治鰞x廠家報(bào)價(jià)

分析軟件同時(shí)包括實(shí)時(shí)的環(huán)境參數(shù)的監(jiān)測(cè)，提供完整的系統(tǒng)圖表的模擬。江蘇美國(guó)LECO分析儀

Procedure-SolidSamplesInstrumentcalibration/driftcorrection.Addapproximately0.05gof***GraphitePowdertoa***GraphiteCrucible.Firmlyplacethecrucibleonthelowerelectrodetiporappropriateautoloaderposition.PresstheAnalyzebuttonontheinstrumentscreen,thelowerelectrodewillcloseandtheanalysissequencewillstartandendautomatically.Repeatsteps3bthrough3jaminimumofthreetimesforeachcalibration/driftstandardused.Calibrate/driftfollowingtheprocedureoutlinedintheoperatorsinstructionmanual.江蘇美國(guó)LECO分析儀