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Pono e pena ʻia ka hapa nui o nā apo magnetic i mea e maʻalahi ai ka ʻokoʻa.ʻO ka mea maʻamau, ʻokoʻa ke kumu o ka pauka hao e nā kala ʻelua.ʻO nā mea maʻamau he ʻulaʻula/māmā, melemele/ʻulaʻula, ʻōmaʻomaʻo/ʻulaʻula, ʻōmaʻomaʻo/uliuli a melemele/keʻokeʻo.ʻO ke apo manganese maʻamau ka pena ʻōmaʻomaʻo, hao-silikona-aluminum ʻeleʻele a pēlā aku.ʻO ka ʻoiaʻiʻo, ʻaʻohe pili o ke kala o ke apo magnetic ma hope o ke kī ʻana i ke kala ʻana o ka pena i kāpī ʻia ma hope, he ʻaelike wale nō ia ma ka ʻoihana.Eia kekahi laʻana, hōʻike ka ʻōmaʻomaʻo i ke apo magnetic permeability kiʻekiʻe;ʻelua kala e hōʻike ana i ka pauka hao i ke apo magnetic;ʻeleʻele e hōʻike ana i ka hao-silikona-aluminum apo magnetic, etc.
(1) kiʻekiʻe magnetic permeability apo
ʻO nā inductors apo magnetic, pono mākou e ʻōlelo i ke apo magnetic nickel-zinc ferrite.Hoʻokaʻawale ʻia ke apo magnetic i ka nickel-zinc a me ka manganese-zinc e like me ka mea.Ke hoʻohana ʻia nei ka mana o ka nickel-zinc ferrite magnetic ring material mai 15-2000.ʻO ka mea maʻamau i hoʻohana ʻia ʻo nickel-zinc ferrite me ka magnetic permeability o 100- Ma waena o 1000, e like me ka hoʻokaʻawale ʻana o ka magnetic permeability, ua māhele ʻia i nā mea haʻahaʻa magnetic permeability.ʻO ke apo magnetic o ka manganese-zinc ferrite magnetic ring material ma luna o 1000, no laila ua kapa ʻia ke apo magnetic i hana ʻia e ka manganese-zinc material.
Hoʻohana mau ʻia nā apo magnetic nickel-zinc ferrite no nā uea like ʻole, nā papa kaapuni, a me ka anti-interference i nā lako kamepiula.Hiki ke hoʻohana ʻia nā apo magnetic ferrite manganese-zinc e hana i nā inductors, transformers, kānana cores, magnetic poʻo a me nā lāʻau antenna.Ma keʻano laulā, ʻo ka haʻahaʻa haʻahaʻa o ka permeability waiwai, ʻoi aku ka laulā o ka laulā pili;ʻoi aku ka kiʻekiʻe o ka permeability, ʻoi aku ka liʻiliʻi o ka laulima alapine kūpono.
(2) apo apo pauda hao

He huaʻōlelo kaulana ka Iron powder core no ka magnetic material ferric oxide, ka mea i hoʻohana nui ʻia i nā kaʻa uila e hoʻonā i nā pilikia electromagnetic compatibility (EMC).Ma ka hoʻohana pono ʻana, e hoʻohui ʻia nā mea ʻē aʻe e like me nā koi kānana like ʻole i nā ʻāpana alapine like ʻole.
ʻO nā koʻi pauka magnetic mua i "hoʻopaʻa ʻia" metala palupalu palupalu i hana ʻia me ka hao-silicon-aluminum alloy magnetic powders.ʻO kēia iron-silicon-aluminum magnetic powder core i kapa ʻia ʻo "iron powder core".ʻO kāna kaʻina hana hoʻomākaukau maʻamau: e hoʻohana i ka Fe-Si-Al alloy magnetic pauka e hoʻopalapala ʻia e ka wili pōleʻa a uhi ʻia me kahi papa insulating e nā ʻano kemika, a laila hoʻohui i kahi 15wt% binder, hui like, a laila hoʻoheheʻe a paʻa, a laila mālama wela. ( hoʻomaha pilikia) e hana i nā huahana.Ke hana nui nei kēia huahana "iron powder core" ma 20kHz∼200kHz.No ka mea, he nui loa ko lākou saturation magnetic flux density ma mua o nā ferrites e hana ana i ka hui alapine like, maikaʻi DC superposition hiʻohiʻona, kokoke i ka zero magnetostriction coefficient, ʻaʻohe walaʻau i ka wā o ka hana, ke kūpaʻa alapine maikaʻi, a me ka lakio kumu kūʻai kiʻekiʻe.Hoʻohana nui ia i nā mea uila e like me nā mea hoʻololi uila uila kiʻekiʻe.ʻO kā lākou hemahema ʻo ia ka hoʻopiha ʻole ʻana i ka magnetic dilution wale nō, akā ke hoʻoneʻe nei i ke ala magnetic flux, a ke alakaʻi nei ka demagnetization kūloko i ka emi ʻana o ka magnetic permeability.
ʻOkoʻa ka mea i hoʻomohala hou ʻia i ka pauka hao hana kiʻekiʻe mai ka pahu kuʻuna hao-silicon-aluminum.ʻO ka mea maka i hoʻohana ʻia, ʻaʻole ia ka pauka magnetic alloy akā ka pauka hao maʻemaʻe i uhi ʻia me kahi papa insulating.He liʻiliʻi loa ka nui o ka mea hoʻopaʻa, no laila ua nui ka mānoanoa flux magnetic.hoonui i ka nui.Ke hana nei lākou ma ka laina alapine waena haʻahaʻa ma lalo o 5kHz, maʻamau he mau haneli Hz, ʻoi aku ka haʻahaʻa ma mua o ke alapine hana o FeSiAl magnetic powder cores.ʻO ka mākeke pahuhopu ke hoʻololi i nā ʻāpana kila silika no nā kaʻa me kona mau poho haʻahaʻa, kiʻekiʻe kiʻekiʻe a me ka maʻalahi o ka hoʻolālā 3D.
Inductor Ring Magnetic
(3) FeSiAl apo magnetic
ʻO ke apo magnetic FeSiAl kekahi o nā apo magnetic me ka helu hoʻohana kiʻekiʻe.Ma nā ʻōlelo maʻalahi, ua haku ʻia ʻo FeSiAl me ka alumini-silicon-iron a he Bmax kiʻekiʻe loa (Bmax ka awelika Z ma ka ʻāpana cross-sectional o ka magnetic core. Magnetic flux density.) ʻoi aku ka haʻahaʻa ma mua o ka pauka hao a me ka flux magnetic kiʻekiʻe, loaʻa ka magnetostriction haʻahaʻa (haʻahaʻa haʻahaʻa), he mea hoʻopaʻa ikehu haʻahaʻa haʻahaʻa, ʻaʻohe ʻelemakule wela, hiki ke hoʻohana ʻia e pani i ka pauka hao Paʻa loa ke kumu i ka wela kiʻekiʻe.
ʻO nā hiʻohiʻona nui o FeSiAlZ he haʻahaʻa haʻahaʻa ma mua o nā koina pauka hao a me nā hiʻohiʻona DC bias maikaʻi i kēia manawa.ʻAʻole kiʻekiʻe ke kumu kūʻai, akā ʻaʻole ka haʻahaʻa, ke hoʻohālikelike ʻia me ka pauka hao a me ka molybdenum nickel hao.
ʻO ka hao-silicon-aluminum magnetic powder core he mea maikaʻi maikaʻi a me nā waiwai magnetic, haʻahaʻa haʻahaʻa haʻahaʻa a me ke kiʻekiʻe magnetic flux density.Ke hoʻohanaʻia i loko o ka mahana wela o -55C ~ + 125C, loaʻa iā ia ka hilinaʻi kiʻekiʻe e like me ke kūpaʻa wela, ka haʻahaʻa a me ka haʻalulu;
I ka manawa like, loaʻa kahi ākea permeability o 60 ~ 160.ʻO ia ke koho maikaʻi loa no ka hoʻololi ʻana i ka mana hoʻopukapuka choke coil, PFC inductor a me resonant inductor, me ka hana kiʻekiʻe.