Taw qhia
Cov hlau nplaum yog cov khoom siv tseem ceeb hauv cov cuab yeej siv niaj hnub no, siv txhua yam los ntawm cov tshuab hluav taws xob thiab cov tshuab hluav taws xob rau cov ntaub ntawv khaws cia thiab kev kho mob. Cov hlau nplaum mos yog ib hom khoom sib nqus uas yooj yim sib nqus thiab demagnetized, ua rau lawv zoo tagnrho rau ntau yam kev siv. Tab sis nrog ntau cov ntaub ntawv mos hlau nplaum ntawm kev ua lag luam, nws tuaj yeem nyuaj rau kev txiav txim siab qhov twg yog qhov zoo tshaj plaws rau kev siv tshwj xeeb. Hauv tsab xov xwm no, peb yuav tshawb xyuas cov yam ntxwv ntawm ntau yam mos hlau nplaum los pab koj xaiv cov khoom siv zoo tshaj plaws rau koj cov kev xav tau.
Soft Magnets yog dab tsi?
Cov hlau nplaum mos yog cov khoom sib nqus uas yooj yim hlau nplaum thiab demagnetized. Lawv muaj kev coercivity tsawg, txhais tau hais tias nws yuav siv sij hawm me ntsis zog los magnetize lawv, thiab ib tug tsawg remanence, txhais tau hais tias lawv tsis khaws lawv magnetization thaum lub magnetizing teb raug tshem tawm. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas cov hlau nplaum yuav tsum tau hloov pauv sai thiab nquag, xws li hauv hluav taws xob motors thiab transformers.
Hom Soft Magnets
Muaj ntau hom mos hlau nplaum muaj nyob rau hauv kev ua lag luam, txhua tus muaj nws tus kheej cov khoom tshwj xeeb. Qee qhov feem ntau siv cov hlau nplaum mos muaj xws li:
1. Hlau
Hlau yog ib qho ntawm cov khoom siv hlau nplaum uas siv ntau tshaj plaws vim nws cov nqi qis thiab siab sib nqus permeability. Nws yog feem ntau siv rau hauv transformer cores, lub cev muaj zog laminations, thiab lwm yam kev siv uas yuav tsum tau high magnetic flux ceev.
2. Nickel
Nickel yog lwm yam khoom siv hlau nplaum nrov vim nws tsis tshua muaj coercivity thiab siab curie kub (qhov kub ntawm cov khoom poob nws cov khoom sib nqus). Nws yog feem ntau siv hauv cov ntawv thov sensor, xws li magnetic field sensors thiab magnetic read heads rau cov ntaub ntawv khaws cia.
3. Cobalt
Cobalt yog cov khoom siv sib nqus mos uas siv ntau yam kev siv, suav nrog cov tshuab hluav taws xob, cov tshuab hluav taws xob, thiab kev tiv thaiv sib nqus. Nws muaj lub siab saturation magnetization, ua rau nws zoo tagnrho rau cov ntawv thov uas yuav tsum tau muaj qhov sib nqus flux ceev.
4. Ferrites
Ferrites yog ib hom khoom siv ceramic uas feem ntau siv los ua cov hlau nplaum mos. Lawv muaj cov coercivity tsawg thiab tuaj yeem sib nqus tau yooj yim thiab demagnetized. Ferrites feem ntau yog siv nyob rau hauv transformer cores, inductors, thiab microwave li.
5. Amorphous hlau
Amorphous hlau, tseem hu ua hlau iav, yog ib chav kawm tshiab ntawm cov khoom siv hlau nplaum uas tau txais koob meej vim lawv cov hlau nplaum permeability siab thiab cov tub ntxhais poob qis. Lawv feem ntau siv nyob rau hauv lub hwj chim transformers, magnetic sensors, thiab magnetic shielding daim ntaub ntawv.
Tej yam yuav tsum tau xav txog thaum xaiv ib tug mos hlau nplaum
Thaum xaiv cov khoom sib nqus mos rau koj daim ntawv thov, muaj ntau yam los xav txog, suav nrog:
1. Cov khoom sib nqus
Cov khoom sib nqus ntawm cov hlau nplaum mos, xws li sib nqus permeability, coercivity, thiab saturation magnetization, yog qhov tseem ceeb thaum xaiv cov khoom. Cov khoom sib nqus ntawm cov khoom siv yuav txiav txim siab seb nws ua tau zoo npaum li cas hauv ib daim ntawv thov.
2. Kub
Qhov kub ntawm cov hlau nplaum yuav siv tau yog qhov tseem ceeb thaum xaiv cov khoom siv. Lub curie kub ntawm cov khoom, uas yog qhov kub ntawm cov khoom uas poob nws cov khoom sib nqus, yuav tsum siab tshaj qhov kub ntawm kev khiav hauj lwm ntawm daim ntawv thov.
3. Tus nqi
Tus nqi ntawm cov hlau nplaum mos yog qhov tseem ceeb thaum xaiv cov khoom siv. Hlau yog cov khoom siv hlau nplaum pheej yig tshaj plaws, thaum cov hlau amorphous yog cov kim tshaj plaws.
4. Mechanical zog
Cov khoom siv ntawm cov hlau nplaum mos, xws li hardness thiab ductility, yog qhov tseem ceeb thaum xaiv cov khoom siv. Cov hlau nplaum mos yuav tsum tau yooj yim tsim thiab machined kom tau raws li qhov yuav tsum tau ntawm daim ntawv thov.
Xaus
Hauv kev xaus, xaiv cov hlau nplaum zoo tshaj plaws rau koj daim ntawv thov yog nyob ntawm ntau yam, nrog rau cov khoom sib nqus, qhov kub, nqi, thiab cov khoom siv tshuab. Hlau, npib tsib xee, cobalt, ferrites, thiab amorphous hlau yog txhua yam siv cov khoom siv hlau nplaum uas muaj cov khoom tshwj xeeb thiab qhov zoo. Los ntawm kev ua tib zoo xav txog koj daim ntawv thov, koj tuaj yeem xaiv cov khoom siv hlau nplaum zoo tshaj plaws rau koj cov kev xav tau.
