Nyocha ngwa nke mpempe akwụkwọ bimetallic na ihe nchekwa ọkụ

2022-03-01

Ihe kacha mkpa nathermal echebebụ bimetal. Taa, m ga-akpọrọ gị ka ị ghọta ngwa nke bimetal na ihe nchebe thermal.

Ọrụ nke mpempe akwụkwọ bimetal na ihe nchebe ọkụ bụ: mgbe okpomọkụ na-agbanwe, n'ihi na mgbasawanye mgbasa ozi nke akụkụ mgbasa ozi dị elu nke bimetal dị elu karịa mgbasawanye nke mgbasa ozi dị ala, na-ehulata, anyị na-eji nke a na-ehulata. ọrụ. n'imethermal echebe.

Ngwa ngwa bimetallic na-ekpo ọkụ nke ndị na-emepụta ihe dị iche iche bụ otu ihe ahụ, matrix bụ ígwè na ọla kọpa alloys, na ihe ndị dị ka nickel na manganese na-agbakwunyere iji gbanwee ọnụọgụ mgbasawanye ha, na-eme ka akụkụ dị elu na-emewanyewanye elu na ala ala. wee mejupụtara mejupụtara. A na-agbakwụnye alloys Master mgbe ụfọdụ iji gbanwee ihe mgbochi nke ihe.

Tupu ikpokọtathermal echebe, mpempe akwụkwọ bimetallic akpụ bụ nzọụkwụ dị oke egwu. Nke mbụ, a na-akụ ọkpọ bimetallic na-ekpo ọkụ ma tinye ya n'ụdị mpempe akwụkwọ, wee kpụzie ya ka ọ bụrụ ọdịdị diski. N'oge a, bimetal thermal nke nwere ụdị efere nwere ihe a kapịrị ọnụ na nrụpụta okpomọkụ. Ihe ndị bụ isi nke bimetal nke ekwesịrị ịtụle tupu ịkụ ọkpọ: ịgbagọ a kapịrị ọnụ, modulu na-agbanwe agbanwe, ike siri ike, nha nha, nguzogide, oke okpomọkụ na-arụ ọrụ. Buru ụzọ tụlee ọnọdụ okpomọkụ nke mpempe akwụkwọ bimetal nwere ike iji mee ihe na ya, wee tụlee ike na ike nke omume nke bimetal kwesịrị ịmepụta, ma họrọ ihe kwesịrị ekwesị na-ehulata na modul na-agbanwe. Wee họrọ nha, ike na mgbanwe modulus nke bimetal na-ekpo ọkụ kwesịrị ekwesị maka usoro ịkpụzi na akụrụngwa. Mgbe ahụ họrọ resistivity kwesịrị ekwesị dị ka oge a chọrọ nke ihe nchebe na mmetụta nke oghere ike okpomọkụ.

Dị ka bimetal si dị ugbu a thermal effect formula Q=∫t0I2Rdt, enwere ike mara na ịhọrọ bimetal nwere nnukwu nguzogide ga-eme ka okpomoku dịkwuo elu, belata oge ọrụ nke ihe nchekwa ọkụ, ma belata obere ọrụ ugbu a. Ihe dị iche bụ eziokwu maka bimetals nwere obere nguzogide. Nguzogide nke bimetal na-emetụta ihe mgbochi, nha na oke nke ọdịdị ahụ.

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