Tsim theem ntawm electrothermal oxide zaj duab xis:

Tsim theem ntawm electrothermal oxide zaj duab xis:

Nyob rau hauv thawj theem, cov hlau yog oxidized sai, thiab oxidation tus nqi yog siab tshaj ntawm no. Tom qab ntawd, tus nqi oxidation pib qeeb. Thaum cov yeeb yaj kiab oxide txuas ntxiv tsim rau ntawm qhov chaw, oxidation ceev txuas ntxiv qeeb thiab oxidation nkag mus rau theem ob.

Nyob rau theem no, kev sib raug zoo ntawm oxidation tus nqi thiab lub sij hawm yog nonlinear, thiab oxide zaj duab xis muaj ib txheej txheej. Nyob rau theem pib ntawm kev tsim cov oxide zaj duab xis, txhuas, silicon, chromium thiab lwm yam yooj yim oxidizable ntsiab nyob rau hauv cov hlau sai sai ua ke nrog oxygen los tsim cov oxides sib xws. Cov oxides no ua raws li qhov chaw ntawm cov hlau los tsim cov oxide zaj duab xis tas li. Nyob rau tib lub sijhawm, cov txhuas, silicon, chromium thiab lwm yam khoom hauv cov alloy diffuse rau saum npoo thiab yog concentrated nyob rau hauv thawj oxide zaj duab xis.

Thaum cov yeeb yaj kiab oxide txuas ntxiv yog tsim rau ntawm qhov chaw ntawm cov hlau, cov pa oxygen nkag mus rau hauv cov hlau txuas ntxiv txo qis. Nyob rau lub sijhawm no, tseem muaj cov pa me me uas tuaj yeem oxidize los ntawm oxide zaj duab xis nrog cov hlau alloy enriched nyob rau hauv zaj duab xis los tsim ib txheej oxide sab hauv.

Nyob rau theem no, cov hlau yog oxidized ntawm tus nqi qeeb heev. Tom qab lub sijhawm ntev ntawm qhov kub thiab txias, qhov ntom thiab tuab ntawm oxide zaj duab xis nce. Cov oxidation ntawm cov hlau muaj kev sib raug zoo nrog lub sijhawm. Cov oxide zaj duab xis dhau los ua ob txheej txheej ob sab hauv thiab sab nraud. Lub sijhawm ruaj khov ntawm cov yeeb yaj kiab oxide ntev dua, lub neej ntev ntawm cov hlau.

Lub hauv paus ntsiab lus ntawm kev ntsuas kub ntawm thermocouple yog cov nyhuv thermoelectric. Cov hlau conductors ntawm ob yam khoom sib txawv yog txuas mus rau qhov kawg los ua ib lub voj kaw. Yog tias qhov kub ntawm qhov sib txuas hloov pauv, lub ntsuas kub yuav raug tsim nyob rau hauv lub voj, uas yog cov nyhuv thermoelectric. Thermocouple yog tsim los ntawm vuam ib kawg ntawm ob yam khoom hlau sib txawv. Qhov kawg welded yog qhov ntsuas qhov kawg, thiab qhov kawg uas tsis muaj qhov kawg yog qhov kawg tso tawm. Qhov luaj li cas ntawm cov thermoelectric tej zaum muaj feem xyuam rau cov yam ntxwv ntawm ob cov ntaub ntawv hlau thiab qhov kub ntawm qhov ntsuas qhov ntsuas, thiab tsis muaj dab tsi cuam tshuam nrog lub thickness thiab ntev ntawm lub thermocouple.

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