Tus neeg hais lus ua haujlwm li cas
Thaum sib txawv electron zog xa mus rau lub kauj, lub kauj tsim lub zog uas cuam tshuam nrog cov hlau nplaum ntawm cov hlau nplaum; qhov kev cuam tshuam no yuav ua rau daim ntawv phaj vibrate; Nyob rau tib lub sijhawm, vim tias lub zog hluav taws xob hloov pauv txhua lub sijhawm, lub kauj ntawm tus hais lus yuav txav mus rau pem hauv ntej lossis rov qab, Yog li ntawd, daim ntawv phaj ntawm lub horn yuav ua raws li kev txav mus los, thiab lub zog yuav hloov qhov ceev ntawm huab cua, yog li ntawd. tsim suab. Lub luag haujlwm ntawm cov hlau nplaum ntawm no yog los pab kev vibration.
Cov hlau nplaum siv hauv cov neeg hais lus yog: ferrite, neodymium nickel cobalt, neodymium hlau boron.
NdFeB hlau nplaum yog cov khoom tseem ceeb ntawm cov neeg hais lus siab, ntawm no yog sintered NdFeB hlau nplaum kom muaj tseeb. Cov khoom sib nqus ntawm sintered NdFeB hlau nplaum yog ntau dua li cov hlau nplaum NdFeB sib raug zoo, yog li siv nws yuav ua rau tus neeg hais lus suab zoo dua. Tib lub sijhawm, NdFeB cov hlau nplaum kuj tseem siv rau hauv lub mloog pob ntseg siab. Xws li lub mloog pob ntseg muaj thawj chav kawm suab zoo, zoo elasticity, nthuav dav kev ua tau zoo, kev ua suab nrov zoo, thiab qhov tseeb suab thaj chaw.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov, qhov sib nqus kev ua tau zoo ntawm ferrite kuj tsis zoo, thiab nws xav tau ib lub ntim kom tau raws li lub zog tsav ntawm tus neeg hais lus, yog li nws yog feem ntau siv nyob rau hauv lub loj hais lus.
Rau qhov yuav tsum tau ua ntawm qhov chaw ua haujlwm ntawm tus neeg hais lus, qhov tsim nyog NdFeB tuaj yeem raug xaiv raws li qhov kub thiab txias. Piv txwv li: N (80 degree), M (100 degree), H (120 degree), SH (150 degree), UH (180 degree), EH (200 degree).
Rau txhua qhov kub, muaj cov khoom sib nqus sib txawv, xws li N38, N40, N45, lub zog sib nqus ntawm Nd-Ni-Co yog nyob nruab nrab ntawm Nd-Fe-B thiab ferrite, tab sis ob qho no tuaj yeem ua haujlwm ntawm qhov kub ntawm 300. degree, yog li muaj cov kev cai tshwj xeeb rau kev kub siab, tuaj yeem xav txog nws. Tab sis tus nqi kuj kim heev.
Thaum peb hais ntau npaum li cas magnetism nyob rau hauv lub horn, peb txhais tau tias lub cheeb ntawm cov hlau nplaum nyob rau hauv lub horn. Piv txwv li, 100 hlau nplaum txhais tau hais tias txoj kab uas hla ntawm cov hlau nplaum yog 100 hli.
Cov hlau nplaum ntawm tus neeg hais lus tsis yog qhov zoo dua: Cov hlau nplaum tau muab faib ua qhov kub me, qis dua, sib nqus muaj zog, tsis muaj zog sib nqus thiab yog li ntawd. Tsis yooj yim thiab. Rau tib cov khoom sib nqus, qhov loj ntawm txoj kab uas hla, qhov saturation ntawm magnetization, lub zog magnetic ntau dua, lub zog ntawm tus neeg hais lus ntau dua, qhov siab ntawm tus neeg hais lus siab dua, thiab qhov zoo dua cov lus teb ib ntus.
Thiab yog hais tias nyob rau hauv tib yam kev mob, tus nqi ntawm magnetization txawv, lub hwj chim, rhiab heev thiab transient kev ua tau zoo ntawm cov neeg hais lus txawv. Yog li ntawd, nws tsis tuaj yeem xav tias qhov loj ntawm txoj kab uas hla ntawm lub horn hlau nplaum, qhov zoo dua.
Cov ntaub ntawv tsis tshua muaj hauv ntiaj teb sib nqus (xws li NdFeB) muaj cov hlau nplaum loj dua li ferrite, yog li siv NdFeB hlau nplaum tsis xav tau txoj kab uas hla loj. Yog li ntawd, NdFeB feem ntau yog siv nyob rau hauv me me hais lus, xws li lub tsheb suab.
