Thermocouple cov ntaub ntawv

Ntawm qhov tod tes, feem ntau siv cov khoom siv thermocouple thiab lawv cov khoom muaj xws li: 1. Platinum thermocouple (Platinum rhodium throdium thermocouple). Qhov zoo electrode yog platinum rhodium allloy muaj 10% rho tawm, thiab qhov tsis zoo electrode yog ntshiab platinum; Nws cov yam ntxwv yog: (1) ruaj khov thermoelectric kev ua tau zoo, nyiam dua qub hauv kev siv oxidizing, nrog lub sijhawm ntev ntawm 1300 degree. Thaum qhov ntsuas kub tshaj 1400 degree, txawm tias cov xov dawb dawb yuav recrystallize saum huab cua, thiab cov nplej yuav ua kom ntxhib thiab raug pov tseg. (2) qhov tseeb yog qhov tseeb, uas yog qib siab tshaj plaws ntawm txhua qhov thermocouples thiab feem ntau yog siv los ua tus qauv lossis ntsuas ntsuas ntsuas kub. (3) Kev siv ntau yam, kev sib txig zoo thiab sib hloov pauv. (4) Lub ntsiab tseem ceeb yog cov muaj peev xwm me me sib txawv yooj yim, qis tus nqi, thiab nws tsis haum rau kev siv txo cov cua nab kuab thiab cov vapors. 2. Platinum Rhodium 13 Platinum Thermocouple (tseem hu ua tus lej xov tooj ntawm no thermocouple muaj 13% Piv nrog S-hom, tus nqi muaj peev xwm yog li 15% siab dua, thiab lwm yam khoom yog ntxig tib yam. Hom thermocouple yog qhov feem ntau siv high-kub rhodium alloy thiab tsis tshua muaj hluav taws xob ntawm cov platinum rhodium alloy muaj 6% rho tawm. Nyob rau hauv chav tsev kub, lub peev xwm thermoelecric yog me me, yog li cov hmoov txhuas tsis tau them nyiaj thaum ntsuas. Lub sij hawm ntev siv kub uas tuaj yeem tsis quav ntsej txog qhov cuam tshuam ntawm txias xaus hloov pauv yog 1600 kawm tiav, thiab cov sijhawm luv luv yog 1800 degree. Lub peev xwm thermoeltric yog me me, yog li ib cov zaub zoo heev yog qhov yuav tsum tau ua. B-hom thermocouples yog qhov haum rau kev siv hauv oxidizing lossis nruab nrab ntawm cua. Txawm hais tias lawv tuaj yeem siv tau rau hauv qhov chaw txo qis rau lub sijhawm luv luv ntawm lub sijhawm nqus dej, lawv li kev ua haujlwm hauv lub tshuab nqus tsev, lawv li 25}}}} lub sij hawm ntawm r lossis s hom thermocouples. Lawv cov hluav taws xob yog ua los ntawm platinum rhodium alloy, yog li lawv muaj tag nrho cov tsis zoo ntawm qhov tsis zoo electrium platinum throdocoatinum thermocoatles. Thaum muaj kub kub, muaj tsawg dua kev nyiam rau crystallization, thiab lawv muaj cov tshuab ua khoom muaj zog dua. Nyob rau tib lub sijhawm, vim muaj me me ntawm impurity nqus dej, qhov hloov pauv ntawm cov nqi thermoelectric tsis hnyav, thiab cov lus sib piv rau platinum rhodium). 4. Nickel Chromium Alloy (Nickel Txhuas) ThermoCoPle yog Nickel (hauv qee lub tebchaws, hauv qee lub tebchaws yog qhov tsis zoo electrode yog lub ntsej muag dawb huv). Nws tuaj yeem ntsuas qhov kub ntawm qhov nruab nrab ntawm 0 txog 1300 degree thiab haum rau kev siv tas mus li hauv oxidizing thiab inert gases. Lub sijhawm luv luv siv ntsuas kub yog 1200 degree thiab lub sijhawm ntev siv ntsuas kub yog 1000 degree. Qhov kev sib raug zoo ntawm thermoelectric muaj peev xwm thiab kub yog qhov tseeb linear thiab pheej yig, ua rau nws tam sim no siv dav dav siv thermocouple. K-hom thermocots yog lub hauv paus cov hlau thermocouples nrog cov muaj zog oxidation tsis kam. Thaum cov xov hlau liab qab siv rau hauv cov cua ntawm lub tshuab nqus tsev, cov pa roj carbon, thiab hloov cov oxidation-txo, cov oxelfation oxidized thaum cov pa partial siab tsis zoo. Lub thermoelectric muaj peev xwm hloov zoo heev, tab sis tus cawv ntawm cov roj hlau yog me me. Yog li ntawd, kev tiv thaiv hlau hlau ib txwm siv. Qhov tsis zoo ntawm K-hom thermorochles: (1) qhov kev kub ntxhov siab ntawm thermocouples lossis ntau dua li 1000 degree, uas yog, ntawm tib qho kub taw tes, tus Pom tus nqi ntawm thermoelectric muaj peev xwm sib txawv thaum lub caij cua sov thiab cua txias, thiab qhov txawv tuaj yeem ncav cuag {}}} degree). Qhov tsis zoo electrode undergoes hloov pauv nyob rau hauv thaj tsam ntawm ib qho kev sib cais ntawm 230 degree ntawm chav tsev kub, tshwj xeeb tshaj yog thaum siv hauv kev sib nqus. Lub sij hawm Industrial thermoelectric muaj kev cuam tshuam muaj peev xwm feem ntau tshwm sim. (4) Lub sijhawm ntev raug rau highputure system irradiation ib puag ncig. Cov ntsiab lus xws li manganese (mn) thiab cobalt (co) hauv cov khoom tsis zoo electrode forpo denaturation, uas ua rau tsis ruaj khov thiab cov kev hloov pauv tsis tshua muaj peev xwm. 5. Cov yam ntxwv tseem ceeb ntawm Nickel Silicon Thermocouple (Performance cov kev cai hauv qab no thiab luv luv hluav taws xob tsis kam thiab kub tsis kam. Tsis tas li ntawd, nyob rau hauv thaj tsam ntawm {55}} degree, decer thermocoecles yog zoo dua li ntawm 6, tooj liab tooj liab. Lub chaw zoo ntawm Thermocouple yog ntshiab tooj liab thiab tsis zoo electrode yog tooj liab npib tsib (tseem hu ua constantan). Nws lub ntsiab tseem ceeb yog tias nws yog lub hauv paus hlau thermocouple thermocouple nrog qhov siab thiab zoo sib xws ntawm cov thermoelectric electrode. Nws kev ua haujlwm kub yog -200 ~ 350 degree. Tooj liab thermocoup yog nquag mus rau oxidation, thiab vim yog qhov yooj yim peeling ntawm oxide zaj duab xis, lawv yuav tsum feem ntau tsis tshaj 300 degree thaum siv hauv oxidizing huab cua. Qhov rhiab heev yog qhov siab nyob rau hauv cov kab ntau ntawm {63}} ~ 300 degree. Tooj liab constantan thermocuples muaj cov yam ntxwv ntawm kev pheej yig thiab pheej yig tshaj plaws ntawm cov qauv siv tau qauv. 7. Hlau Constantan Thermocouple (Division Tus lej J) J-hom thermoPouple, yog pheej yig thiab concloters allloy) raws li qhov tsis zoo eleclots) raws li lub tshuab nqus tsev oxidation-txo lossis cov cua. Qhov ntsuas kub yog {{-200}, thiab cov siv tau siv ntau dua yog qis dua 500 degree. Thaum qhov ntsuas kub tshaj qhov txwv no, tus nqi oxidation ntawm cov hluav taws xob hluav taws xob nce. Yog hais tias tuab xaim inch yog siv, nws tseem tuaj yeem siv thaum muaj kub. Lub neej ntev lub neej tuaj yeem tiv thaiv cov corrosion ntawm hydrogen (h2) thiab siv tau rau hauv cov pa roj sulphur (s) huab cua sov ntawm qhov kub siab (xws li 500 degree). 8. Nickel chromium alloy (constantan) thermocouple (division number E) E-type thermocouple is a new product, with nickel chromium alloy as the positive electrode and copper nickel alloy (constantan) as the negative electrode. Nws cov yam ntxwv yog tias lub peev xwm thermoelectric yog qhov siab tshaj plaws ntawm cov thermocouples, uas txhais tau tias nws muaj qhov siab tshaj plaws. Nws daim ntawv thov ntau yog tsis zoo li K-hom txawm tias tus lej, tab sis nws rhiab heev yog qhov siab. Cov kev txwv uas txwv rau kev siv yog tib yam li K-hom, uas feem ntau tau raug xaiv nyob rau hauv cov kev mob uas tsis muaj mob thermal, tab sis nws tsis rhiab rau kev xeb, suav nrog cov chaw noo noo. Ntxiv rau 8 feem ntau siv thermocouples hais los saum toj no, tsis yog qauv threadium thermocomles thermocoupdenum thermocoidles, thiab tsis yog xim hlau cov khoom thermocoples.