ʻO ke kūʻai pololei ʻana o ka hale hana ʻoi aku ka maikaʻi loa o nā mākēneki Ferrite i hoʻopilikino ʻia

Nānā nui

ʻO ka magnet ferrite mau loa, i ʻike ʻia ʻo ia hoʻi ʻo ka paʻakikī paʻakikī, he mea non-metallic magnetic material.I ka makahiki 1930, ua ʻike ʻo Kato lāua ʻo Wujing i kahi ʻano spinel (MgA12O4) mau magnet, ʻo ia ka prototype o ka ferrite i hoʻohana nui ʻia i kēia lā. ʻO ka SrO a i ʻole Bao a me Fe2O3 ma ke ʻano he mea maka ma ke kaʻina hana seramika (firing mua, ʻohi, pulverizing, kaomi, sintering a me ka wili).Loaʻa iā ia nā hiʻohiʻona o ka loop hysteresis loop, ka ikaika coercive kiʻekiʻe a me ka remanence kiʻekiʻe.He ʻano mea hana ia e hiki ai ke mālama i ka magnetism i ka manawa i hoʻopaneʻe ʻia.ʻO kona mānoanoa he 4.8g/cm3.Wahi a nā kaʻina hana like ʻole, hiki ke hoʻokaʻawale ʻia ka magnet ferrite i ʻelua ʻano: sintering a me ka hoʻopaʻa ʻana.Hiki ke hoʻokaʻawale ʻia ka Sintering i ke kaomi maloʻo a me ka pulu pulu, a hiki ke hoʻokaʻawale ʻia ka hoʻopaʻa ʻana i extrusion, compression a me ka hoʻoheheʻe ʻana.ʻO ka magnet palupalu, elastic a wili i hana ʻia me ka pauka ferrite paʻa a me ka ʻōpala synthetic i kapa ʻia ʻo ia ka magnet magnet.E like me ka hoʻohana ʻia ʻana o ke kahua magnetic waho a i ʻole, hiki ke hoʻokaʻawale ʻia i isotropic permanent magnet a me anisotropic permanent magnet.

E hoʻohālikelike me nā mea magnetic ʻē aʻe

Pōmaikaʻi:ʻO ke kumu kūʻai haʻahaʻa, ke kumu ākea o nā mea maka, ke kūpaʻa wela kiʻekiʻe (a hiki i 250 ℃) a me ka pale ʻana i ka corrosion.

Kinohi: Ke hoʻohālikelike ʻia me nā huahana NdFeB, haʻahaʻa loa kona remanence.Eia kekahi, ma muli o ke ʻano palupalu a palupalu o kāna mea haʻahaʻa haʻahaʻa haʻahaʻa, nui nā ʻano hana i kaupalena ʻia e ia, e like me ke kuʻi ʻana, eli, a me nā mea ʻē aʻe, ʻo ka hapa nui o kāna ʻano huahana hiki ke kaomi wale ʻia e ka mold, ka huahana. ʻilihune ka pololei o ka hoʻomanawanui, a he kiʻekiʻe ke kumukūʻai mold.

Ka uhi:Ma muli o kāna kūpaʻa corrosion maikaʻi loa, ʻaʻole pono ia i ka pale uhi.