Dab tsi ntawm thermocouple rau hluav taws xob hluav taws xob?

1. Rov ua dua tshiab - nrog tib ob thermocouple cov ntaub ntawv thermocouple, kheej lawv cov hluav taws xob ntawm lub theem thiab ruaj khov, kom lub thermocouple yuav ua tau ntau lawm, thiab kev sib raug zoo;

2. High precision, zoo linearity - thermocouple tej zaum ntawm lub thermocouple yuav tsum tau loj txaus thiab linearly txog kub;

3. Kub kub-thermocouple kub ntau nyob ntawm cov kev kub kub ntawm lub kub electrode, uas yog, nyob rau hauv nruab nrab kub nruab nrab, lub thermal electrode ntawm lub cev thiab tshuaj zog ntawm qhov ruaj khov dua, qhov muaj pes tsawg leeg ntawm thermocouple kub ntau Lub dav.

Cov cub hluav taws xob ua kom raug hluav taws xob taws nrog thermocouple, yuav tsum tau siv raws li cov kev cai ntawm ib qho kev xaiv tsim nyog. Tam sim no siv cov thermocouples yog cov nram qab no:

1, cov xim nickel chrome / kuaj tooj hlau thermocouple - phau ntawv cim E, tus zoo nickel chromium nyob ntawm 9-10% chromium, 0.4% silicon, tus so ntawm nickel; tsis pom kev zoo tooj liab plooj (porcelain) yog muab faib ua 56% tooj thiab 44% npib tsib xees.

Qhov loj tshaj plaws ntawm no galvanic yog thermoelectric zog, pheej yig. Cov shortcomings ntawm no thermocouple tsis tuaj yeem siv siv los ntsuas kev kub, qhov siab tshaj ntawm 800 ℃, siv ntev, tsuas yog 600 ℃ hauv qab, ntxiv rau, vim muaj tooj hlau ua rau oxidation thiab deterioration, kev siv tiv thaiv npog muab ntsia hlau.

2, tooj liab / Kang tooj thermocouple - nws cov cim T, cov cathode yog tooj liab, qhov tsis zoo 60% tooj liab / 40% nickel alloy.

Qhov zoo ntawm qhov teeb meem ntawm qhov teeb meem no yog siab dua, yooj yim rau luam lub kub electrode, pheej yig, tsis muaj qhov kub thiab txias, ntsuas tau-200 ℃ txias. Tab sis lub muaj pes tsawg tus tooj liab yooj yim rau oxidation, yog li qhov dav dav txwv tsis tshaj 300 ℃.

3, chrome nickel chrome / nickel silicon thermocouple - nws cov naj npawb xov tooj K, txoj kev tivthaiv yog 9-10% chromium, 0.4% silicon, tus so yog nickel, qhov tsis zoo ntawm 2.5-3% silicon, <0.6% chromium,="" cov="" so="" rau="">

Qhov zoo ntawm hom kab mob thermocouple no yog ib qho muaj zog tiv thaiv kom txhob muaj ntshav qab zib thiab corrosion, lwm stability, thermal potential, thermoelectric tej zaum thiab qhov kub ntawm qhov kev sib raug zoo ntawm qhov zoo, lub thawv hom ua haujlwm rau hauv nws cov thermal electrode khoom Pheej, siv tau tsis tu ncua tshaj 1000 ℃, ntsuas kub ib ntus txog 1300 ℃.

Qhov teeb meem yog tias nws yooj yim rau corroded ntawm kub dua 500 ° C thiab hauv kev txo qis nruab nrab thiab siv cov tshuaj lom neeg thiab cov tshuaj lom neeg. Yog li ntawd, nws yog ib qhov tsim nyog yuav tau siv lub tsho tiv thaiv thaum ua hauj lwm hauv cov atmospheres, Qhov kub ntawm lub cev kuj yog qis tshaj platinum rhodium / platinum thermocouple.

4, platinum thiab rhodium / platinum thermocouple - nws cov cim S, qhov zoo electrode yog 90% platinum thiab 10% rhodium alloy, cathode yog dawb huv platinum hlau.

Platinum rhodium / platinum thermocouple tau zoo dua yog qhov yooj yim los npaj cov ntshiab platinum rhodium alloy, thiaj yooj yim rau kev luam, thiab kub siab, yuav siv li lub thoob ntiaj teb kev ntsuas kub 630.74-1064.43 ℃ ntawm kev siv thermocouple.

Nws lub cev muaj zog thiab kev ruaj ntseg, yuav tsum raug siv rau hauv oxidizing thiab nruab nrab qhov nruab nrab; nws tus taw tes melting yog siab, yog li qhov kub thiab txias kuj yog siab. Hauv kev ntsuas feem ntau siv nws los ntsuas qhov ntsuas kub tshaj 1000 ℃, 1300 ℃ ntawm kev siv ntev li niaj zaus siv, kub kub txog 1600 ℃.

Platinum thermocouple shortcomings platinum yog kim, thermoelectric fais fab tuag yog me me, txo cov roj, hlau ua pa, hlau oxides thiab silicon oxide thiab sulfur oxide thiab lwm qhov chaw yuav raug sai sai rau kev sib kis thiab deterioration, yog li hauv cov siv qhov chaw tswj kom tiv thaiv lub kaspuab, ntxiv rau, thermoelectric cov cuab yeej ntawm cov thermocouple non-linear, thaum muaj kev kub, thermal electrode yuav sublimate, kom cov rhodium molecules nkag mus rau hauv platinum los tsuas nws, ua rau thermoelectric tsis ruaj tsis khov.

5, platinum thiab rhodium 30 / platinum thiab rhodium 6 thermocouple - raug xa mus raws platinum thiab rhodium thermocouple, sub-degree tooj B. Qhov zoo thiab tsis zoo ntawm cov thermocouple yog platinum thiab rhodium alloy, tsuas yog qhov feem cuam ntawm cov hlau sib txawv , qhov zoo ntawm lub plawv 30%, qhov tsis zoo yog cov pa roj carbon monoxide yog 6%, ob platinum thiab rhodium thermocouple anti-pollution, 1800 ℃ kub yog tseem zoo heev stability. Nws kub qhov, haum rau oxidation, nruab nrab nruab nrab, ntsuas ntev mus ntev ntawm 1400-1600 ℃ siab, ntsuas kev ntsuas mus txog 1800 ℃.

Platinum thiab rhodium thermocouple rhiab heev tsawg, siv yuav tsum tau nruab nrog high sensitivity zaub ntsuas. Lub tshuab nqus cua sov rau sov sov ntawm qhov chaw sov ntawm lub thermal tej zaum ntawm feem ntau ntawm cov tsawg, yog li kev siv cov nyiaj them kub tsis tas yuav tsum tau.