Qhov sib txawv ntawm isotropic thiab anisotropic ntawm roj hmab hlau nplaum

Qhov sib txawv ntawm isotropib icthiab anisotropib icntawm roj hmab hlau nplaum

Roj hmab hlau nplaum los yog yas hlau nplaum yog "cov khoom siv hlau nplaum ruaj khov" hauv cov khoom sib nqus. Nws yog txhawm rau ntxiv qhov tsim nyog ntawm cov khoom siv hlau nplaum ruaj khov rau cov khoom me me (cov kab zoo li lub koob yog qhov zoo tshaj plaws, zoo li me me compass) rau hauv cov khoom siv roj hmab los yog yas, thiab cov khoom siv hlau nplaum tas mus li yog tag nrho tov nrog roj hmab los yog yas thiab dispersed tusyees. , thiab tom qab ntawd nias cov roj hmab los yog Cov txheej txheem tsim cov yas ua tiav rau hauv qhov yuav tsum tau muaj qhov loj thiab cov duab, uas yog cov neeg hu ua roj hmab hlau nplaum lossis cov hlau nplaum yas. Piv txwv li, lub qhov rooj kaw ntawm lub tub yees yog cov hlau nplaum uas muaj roj hmab ntau tshaj plaws.

Roj hmab hlau nplaum tuaj yeem muab faib ua isotropic thiab anisotropic. Hais txog kev hais lus, anisotropic hlau nplaum zoo dua. Rau lub hauv paus no, nws tuaj yeem muab faib ua ib sab thiab ob sab sib nqus, thiab koj tuaj yeem xaiv cov nplaum lossis tsis nplaum. .

Isotropy txhais tau hais tias tsis muaj qhov sib nqus sab nraud yuav tsum tau thaum nias thiab tsim cov hlau nplaum roj hmab lossis cov hlau nplaum yas. Nyob rau hauv txoj kev no, cov kev taw qhia ntawm cov hlau nplaum me me nyob rau hauv cov khoom sib txuas yog random, thiab muaj tag nrho cov lus qhia, "isotropic" sib nqus kev ua tau zoo yog qis dua, thiab cov nqi tsim khoom ib leeg kuj qis dua.

Anisotropy txhais tau hais tias thaum nias thiab molding roj hmab hlau nplaum los yog yas hlau nplaum, yuav tsum tau ntxiv cov hlau nplaum. Nyob rau hauv txoj kev no, cov kev taw qhia ntawm cov hlau nplaum nyob ruaj khov me me hauv cov txheej txheem yog nyob rau hauv ib qho kev taw qhia, qhov muaj zog ntawm sab nraud magnetic teb, qhov siab dua qhov sib xws ntawm cov txheej txheem thiab qhov siab dua nws cov hlau nplaum. Tau kawg, tus nqi kuj siab dua. Qhov no tuaj yeem ua tiav cov khoom siv sib txawv.

Ntxiv cov hmoov hlau nplaum thiab ntau cov tshuaj sib xyaw ua ke rau cov roj hmab los ua cov ntawv sib nqus roj hmab (rubber soft magnetic) los ntawm banburying, calendering vulcanization, tshem tawm vulcanization thiab lwm yam txheej txheem. Nws tuaj yeem ua rau ib sab thiab ob sab magnetized. Nws cov khoom tseem ceeb ntawm lub cev yog qhov tshwj xeeb ntawm lub ntiajteb txawj nqus, siab hardness, zoo flatness thiab ci ntsa iab, hnav tsis kam thiab siab siab, thiab nws qhov ntev Nws tuaj yeem txiav lossis dov raws li qhov xav tau tiag tiag.

Vim lub siab plasticity ntawm cov khoom siv roj hmab sib nqus nws tus kheej, cov khoom tiav lossis cov khoom tiav tuaj yeem raug txiav, xuas nrig ntaus thiab txuas nrog lwm cov ntaub ntawv ntawm qhov xav tau, thiab nws tsis yooj yim rau demagnetize, thiab nws kuj muaj qhov zoo corrosion kuj.

Piv nrog rau cov khoom sib nqus ntawm cov hlau nplaum anisotropic roj hmab, cov hlau nplaum anisotropic muaj cov hlau nplaum ntau dua.

Isotropic roj hmab hlau nplaum muaj qhov ntom ntom thiab kub dua li cov hlau nplaum anisotropic roj hmab.

Isotropic roj hmab hlau nplaum feem ntau yog siv rau hauv tub yees hlau nplaum, cov khoom luam tawm, ntawv sau, thiab cov khoom siv txhawb nqa; anisotropic roj hmab hlau nplaum yog tsuas yog siv nyob rau hauv micro motors, computers, laser printers, copiers, magnetic cov khoom ua si thiab lwm yam teb.