Qhov zoo ntawm Ferrite Permanent Magnets

Qhov zoo ntawm ferrite mus tas li hlau nplaum

Ferrite yog ib qho ntawm cov khoom siv hlau nplaum ntau tshaj plaws hauv peb lub neej niaj hnub. Kuv xav tias cov neeg feem coob yuav tsum yog tib yam li kuv. Thawj qhov kev nkag siab ntawm cov hlau nplaum yog cov dub ferrite feem ntau siv rau cov neeg hais lus.
Ferrite yog dav siv, thiab ntau npaum li cas yog loj heev. Vim li cas koj thiaj nyiam siv cov hlau nplaum ferrite? Vim nws tsis xeb, tsis oxidize, tsis corrode thiab yog ib puag ncig tus phooj ywg kiag li.

Vim li cas cov hlau nplaum ferrite tsis xeb?

Lub npe tshuaj ntawm ferrite hlau nplaum yog ferric oxide. Cov khoom tseem ceeb yog: Fe₃O₄. Nws yog ib qho oxide ntawm hlau, yog li nws yog qhov nyuaj heev kom oxidized dua. Lwm cov hlau nplaum (lub ntsiab lus tseem ceeb yog hlau) yog ua los ntawm cov hlau nplaum hlau lossis lwm yam khoom. Zoo li lwm yam hlau thiab hlau, lawv tuaj yeem oxidized thiab xeb, thiab oxidized ib feem ntawm cov hlau nplaum ploj.

Dab tsi yog qhov zoo ntawm ferrite hlau nplaum:
1. Tus nqi qis thiab tus nqi qis. Cov nqi raw khoom pheej yig.
2. Zoo kub stability Nws tuaj yeem siv tau ntawm -40 degree thiab ntxiv rau 350 degree .
3. Nws tsuas yog hais tias nws tsis xeb.
4. Lub demagnetization nkhaus yog kwv yees li ib txoj kab ncaj nraim.
5. Lub teeb yuag, ceev (4.6-5.1) X103kg/M³
6. Lub anisotropy tas li ntawm cov hlau nplaum siv lead ua yog loj.
7. Loj coercive quab yuam Hc (nruab nrab ntawm Alnico alloy cov ntaub ntawv thiab tsis tshua muaj ntiaj teb cobalt hlau nplaum cov ntaub ntawv)