Cov hlau nplaum puas muaj qhov ua tau zoo thiab ntim tib yam nkaus li lub zog nqus?
Cov hlau nplaum puas muaj qhov ua tau zoo thiab ntim tib yam nkaus li lub zog nqus? Nws tau hais hauv Is Taws Nem tias lub zog nqus ntawm NdFeB hlau nplaum yog 640 npaug ntawm nws qhov hnyav. Qhov no puas ntseeg tau?
Qhov tseeb, lo lus nug no tuaj yeem sib txawv, uas yog, yam twg muaj feem cuam tshuam rau kev nyiam ntawm cov hlau nplaum. Ua ntej tshaj plaws, nws yuav tsum paub meej tias cov hlau nplaum tsuas muaj lub zog adsorption rau cov ntaub ntawv ferromagnetic. Tsuas muaj peb hom ferromagnetic cov ntaub ntawv nyob rau hauv chav tsev kub, uas yog, hlau, cobalt, npib tsib xee thiab lawv cov alloys, thiab lawv tsis muaj adsorption quab yuam rau cov ntaub ntawv uas tsis yog-ferromagnetic.
Qee cov qauv rau kev suav suction tuaj yeem pom hauv Is Taws Nem:
F=k*B²*S/2
F=0.577*S*B²
Cov qauv no puas yog? Cov lus teb tsis raug, tab sis qhov sib txawv tsis muaj teeb meem. Qhov loj ntawm cov hlau nplaum nqus yog cuam tshuam nrog lub zog hlau nplaum thiab qhov chaw adsorption.Qhov ntau dua qhov sib nqus lub zog, qhov loj dua qhov adsorption cheeb tsam thiab ntau dua qhov nqus.
Tom qab ntawd lo lus nug tom ntej yog, cov hlau nplaum ntawm tib lub ntim, uas yog tiaj tus, cylindrical, thiab elongated, puas muaj tib lub zog nqus? Yog tsis yog, qhov twg muaj qhov nqus dej ntau tshaj?
Ua ntej tshaj plaws, nws yog qhov tseeb tias lub zog nqus dej tsis zoo ib yam. Yam dab tsi ntawm qhov nqus yog qhov loj tshaj plaws uas peb yuav tsum tau hais txog lub ntsiab lus ntawm cov khoom siv hluav taws xob sib nqus siab tshaj plaws. Thaum qhov chaw ua haujlwm ntawm cov hlau nplaum nyob ze ntawm qhov khoom siv hluav taws xob ntau tshaj plaws, cov hlau nplaum muaj lub zog ua haujlwm siab tshaj plaws. Lub zog adsorption ntawm cov hlau nplaum kuj yog ib qho kev tshwm sim ntawm kev ua hauj lwm, yog li qhov sib thooj suction quab yuam kuj yog qhov loj tshaj plaws. Nws yuav tsum raug sau tseg ntawm no tias cov khoom nyiam yuav tsum loj txaus los npog qhov loj ntawm cov ncej hlau nplaum, kom cov khoom, qhov loj me, cov duab thiab lwm yam ntawm cov khoom nyiam tuaj yeem tsis quav ntsej.
Yuav ua li cas txiav txim seb qhov chaw ua hauj lwm ntawm cov hlau nplaum yog nyob ntawm qhov siab tshaj plaws sib nqus zog tsub zuj zuj. Thaum cov hlau nplaum nyob rau hauv lub xeev ntawm ncaj qha adsorption nrog cov khoom absorbed, nws lub zog adsorption nyob ntawm qhov loj ntawm cov pa sib nqus magnetic teb thiab thaj chaw adsorption. Siv cov hlau nplaum cylindrical ua piv txwv, thaum H/D≈0.6, nws qhov chaw nruab nrab Pc≈1, uas yog nyob rau ntawm cov khoom siv hluav taws xob siab tshaj plaws Lub zog nqus siab tshaj plaws nyob ze ntawm qhov chaw ua haujlwm. Qhov no kuj yog raws li txoj cai hais tias cov hlau nplaum feem ntau yog tsim los ua kom tiaj tus li adsorbents. Noj N35 D10 * 6 hlau nplaum ua piv txwv, los ntawm FEA simulation, nws tuaj yeem xam tau tias lub zog nqus ntawm cov phaj hlau yog li 27N, yuav luag ncav cuag tus nqi siab tshaj plaws ntawm cov hlau nplaum nrog tib lub ntim, uas yog 780 npaug ntawm nws tus kheej. hnyav.
Cov hlau nplaum square zoo ib yam li cov hlau nplaum ncig. Thaum nws ncaj qha adsorbed nrog cov khoom nqus, qhov chaw Pc≈1, uas yog, nws nyob ze ntawm qhov chaw ua haujlwm ntawm cov khoom siv hluav taws xob siab tshaj plaws, thiab lub zog nqus yuav ncav cuag tus nqi siab tshaj plaws ntawm cov hlau nplaum nrog tib lub ntim, xws li 10 * 10 * 6.5 lossis 15 * 10 * 8.
Tau kawg, cov saum toj no tsuas yog lub xeev adsorption ntawm ib tus ncej ntawm cov hlau nplaum. Yog hais tias nws yog multi-pole magnetization, lub zog suction yuav txawv kiag li.
Vim li cas lub tshuab nqus tsev hloov pauv ntau heev tom qab cov hlau nplaum ntawm tib lub ntim tau ua rau ntau tus ncej magnetization? Yog vim li cas yog qhov adsorption cheeb tsam S tseem tsis hloov pauv, thiab tus nqi ntawm cov hlau nplaum flux ceev B dhau los ntawm cov khoom nyiam nce ntau. Nws tuaj yeem pom los ntawm cov kab kos duab sib nqus hauv qab no, Rau ntau tus ncej hlau nplaum hlau nplaum, qhov ntom ntawm cov kab hlau nplaum hla dhau los ntawm cov ntawv hlau nce ntau. Tseem coj N35 D10 * 6 hlau nplaum ua piv txwv, nws yog ua los ntawm bipolar magnetization, thiab lub zog nqus ntawm FEA simulation adsorption hlau phaj yog li 1100 npaug ntawm nws qhov hnyav.
Tom qab cov hlau nplaum tau ua rau ntau tus ncej magnetization, txhua tus ncej yog sib npaug rau cov hlau nplaum ntau dua, thiab nws cov nqi Pc tau hloov lawm, yog li nws tsis tuaj yeem suav raws li Pc tus nqi ntawm tag nrho qhov loj, yog li nws qhov loj me yog qhov zoo. tsis H/D≈ 0.6, tab sis cov hlau nplaum nplaum, qhov loj me yog cuam tshuam nrog ntau tus ncej magnetization thiab tus lej ntawm tus ncej.