Qhov sib txawv ntawm cov khoom sib nqus mos thiab cov khoom sib nqus tawv

Cov ntaub ntawv sib nqus ua haujlwm tas mus li feem ntau hu ua cov khoom sib nqus ruaj khov, tseem hu ua cov khoom sib nqus tawv, thaum cov khoom siv hlau nplaum mos feem ntau hu ua cov khoom sib nqus mos. Sib nqus hardness yog hais txog lub peev xwm ntawm cov khoom sib nqus kom khaws lawv cov hlau nplaum muaj zog (hu ua hlau nplaum) ntev ntev tom qab raug hlau nplaum los ntawm cov hlau nplaum sab nraud, uas yog lub zog siab coercive (coercive magnetic field). Cov ntaub ntawv sib nqus mos, ntawm qhov tod tes, yog cov khoom sib nqus uas yooj yim sib nqus thiab demagnetized los ntawm kev siv cov hlau nplaum sib nqus, txhais tau tias lawv muaj kev coercivity tsawg.

Kev faib tawm ntawm cov khoom siv hlau nplaum

1. Cov khoom siv hlau nplaum mos

Feem ntau siv cov khoom siv hlau nplaum hlau muaj xws li cov hlau ntshiab, cov hlau tsis tshua muaj hlau, hlau silicon alloy (silicon steel ntawv), hlau nickel alloy, hlau pob zeb diamond alloy, hlau aluminium alloy, thiab lwm yam. Piv txwv li, cov hlau silicon alloy, tseem hu ua silicon. steel ntawv, uas yog siv dav hauv cov khoom siv hluav taws xob xws li transformers, motors, thiab generators, yog cov khoom siv hlau nplaum zoo tshaj plaws. Hauv kev tsim khoom lag luam, silicon steel uas muaj txog 3.2% Si feem ntau xaiv, uas yog annealed thiab txias-dov los ua daim hlau nyias thiab strips. Cov duab sib txawv ntawm cov hlau cores yog stacked raws li kev xav tau, thiab cov ntaub ntawv no kuj siv rau hauv cov tshuab engraving!

2. Ferrite mos magnetic khoom

Lub npe hu ua ferrite yog cov khoom sib xyaw oxide ntawm ib lossis ob peb lub ntsiab lus hlau nrog hlau ua cov khoom tseem ceeb. Ferrite magnetic cov ntaub ntawv nthuav tawm tsawg kawg ntawm daim tawv nqaij thiab eddy tam sim no poob nyob rau hauv alternating electromagnetic teb vim lawv siab resistivity. Yog li ferrite magnetic cov ntaub ntawv yog dav siv nyob rau hauv teb xws li xov tooj cua, high-frequency, microwave, mem tes, thiab lwm yam.

3. Amorphous magnetic alloys

Feem ntau, cov khoom sib nqus hlau nplaum muaj cov qauv crystalline, tab sis amorphous hlau alloys tuaj yeem tau txais los ntawm txoj kev xws li vapor deposition, kua theem sai txias, los yog high-zog ion implantation. Nyob rau hauv amorphous alloys, kev npaj ntawm atoms yog qhov tsis sib xws, yog li nws tseem hu ua iav hlau. Nws muaj cov khoom zoo heev, tshwj xeeb tshaj yog nws qhov kev tiv thaiv siab, tsis tshua muaj kev poob tam sim no, thiab qhov kub tsis kam tiv taus coefficient. Nws muaj cov txiaj ntsig zoo xws li cov tub ntxhais transformer, cov ntaub ntawv sib nqus, sib nqus sensor, thiab cov khoom siv lub cev muaj zog.

Kev siv cov khoom siv hlau nplaum mos

Cov khoom siv hlau nplaum nyuaj muaj cov hlau nplaum seem thiab tsim nyog siv los ua cov hlau nplaum ruaj khov; Cov ntaub ntawv sib nqus mos muaj qhov sib nqus zoo permeability thiab tsim nyog siv los ua electromagnets, transformers, thiab lwm yam.

Cov ntaub ntawv sib nqus mos: siab sib nqus permeability, yooj yim magnetization, yooj yim demagnetization (siab pib magnetization). Lub saturation magnetic induction intensity yog siab, lub coercivity (Hc) yog me me, thaj tsam ntawm lub hysteresis voj yog nqaim thiab ntev, thiab qhov poob yog me me (HdB cheeb tsam yog me me). Xws li cov hlau nplaum ntshiab, silicon steel permalloy (Fe, Ni) ferrite, thiab lwm yam. Haum rau cov hlau nplaum sib nqus thiab tuav ntawm cov relays, lub cev muaj zog, thiab ntau yam khoom siv hluav taws xob ntau zaus.