Daim ntawv thov kev soj ntsuam ntawm cov ntawv bimetallic hauv thermal tiv thaiv

Qhov tseem ceeb tshaj plaws nyob rau hauv lubthermal tiv thaivyog bimetal. Hnub no, kuv yuav coj koj los nkag siab txog daim ntawv thov ntawm bimetal hauv cov thermal tiv thaiv.

Lub luag hauj lwm ntawm cov ntawv bimetal nyob rau hauv lub thermal tiv thaiv yog: thaum lub kub hloov, vim hais tias lub expansion coefficient ntawm siab expansion sab ntawm bimetal yog ntau dua li expansion coefficient ntawm tsawg expansion sab, khoov tshwm sim, thiab peb siv no dabtsi yog khoov. ua haujlwm. hauvthermal tiv thaiv.

Cov ntaub ntawv kub bimetallic raw khoom ntawm ntau lub tuam txhab yog qhov pib zoo ib yam, cov matrix yog hlau thiab tooj liab alloys, thiab cov ntsiab lus xws li npib tsib xee thiab manganese tau ntxiv los hloov lawv cov coefficients expansion, uas ua rau muaj kev nthuav dav sab thiab qis-expansion sab alloys, thiab tom qab ntawd muaj pes tsawg leeg. Master alloys qee zaum ntxiv txhawm rau txhawm rau hloov qhov kev tiv thaiv ntawm cov khoom.

Ua ntej assembling lubthermal tiv thaiv, daim ntawv bimetallic sib sau yog ib kauj ruam tseem ceeb heev. Ua ntej, cov kub bimetallic strip yog xuas nrig ntaus thiab blanked rau hauv daim ntawv duab, thiab tom qab ntawd pre-tsim rau hauv daim ntawv disc. Nyob rau lub sijhawm no, lub tais-zoo li thermal bimetal muaj qhov ua haujlwm ruaj khov thiab rov pib dua kub. Lub ntsiab tsis zoo ntawm bimetals uas yuav tsum tau xav txog ua ntej xuas nrig ntaus: tshwj xeeb khoov, elastic modulus, hardness, qhov tseeb qhov tseeb, resistivity, kev khiav hauj lwm kub ntau yam. Ua ntej xav txog qhov ntsuas kub uas cov ntawv bimetal tuaj yeem siv rau hauv, thiab tom qab ntawd txiav txim siab lub zog thiab lub zog ntawm qhov kev txiav txim uas bimetal yuav tsum tsim, thiab xaiv qhov tsim nyog khoov thiab elastic modulus. Tom qab ntawd xaiv qhov loj me, hardness thiab elastic modulus ntawm kub bimetal haum rau cov txheej txheem molding thiab cov khoom siv. Tom qab ntawd xaiv qhov tsim nyog resistivity raws li lub sij hawm tam sim no yuav tsum tau ntawm tus tiv thaiv thiab cov nyhuv ntawm lub tshav kub muaj peev xwm kab noj hniav.

Raws li bimetal cov nyhuv thermal nyhuv tam sim no Q = ∫t0I2Rdt, nws tuaj yeem paub tias xaiv cov bimetal nrog kev ua haujlwm siab yuav ua kom muaj cua sov ntau dua, ua kom lub sijhawm ua haujlwm ntawm lub thermal tiv thaiv, thiab txo qis kev khiav hauj lwm tam sim no. Qhov tsis sib xws yog qhov tseeb rau bimetals nrog qis tsis kam. Kev ua haujlwm ntawm bimetal yog cuam tshuam los ntawm kev tiv thaiv, qhov loj thiab tuab ntawm cov duab.