Ka hoʻomaopopo ʻana i ka ʻike mea magnetic
2022-01-11
1. No ke aha ka mea magneti?
ʻO ka hapa nui o nā mea i hana ʻia me nā molekala i hana ʻia me nā ʻātoma i hana ʻia me nā nuclei a me nā electrons. I loko o kahi ʻātoma, wili a wili nā electrons a puni ka nucleus, ʻo ia mau mea ʻelua e hana i ka magnetism. Akā i ka nui o nā mea, neʻe nā electrons i nā ʻano kuhikuhi āpau, a hoʻopau nā hopena magnetic kekahi i kekahi. No laila, ʻaʻole hōʻike ka hapa nui o nā mea i ka magnetism ma lalo o nā kūlana maʻamau.
ʻAʻole like me nā mea ferromagnetic e like me ka hao, cobalt, nickel a ferrite, hiki i nā wili electron i loko ke laina maʻamau i nā wahi liʻiliʻi, e hana ana i kahi ʻāpana magnetization spontaneous i kapa ʻia he domain magnetic. Ke hoʻokalakupua ʻia nā mea ferromagnetic, hoʻopili pololei ko lākou mau kikowaena magnetic kūloko a ma ke ala like, e hoʻoikaika ana i ka magnetism a hana i nā magnet. ʻO ke kaʻina hana magnetization o ka magnet ka hana magnetization o ka hao. He ʻokoʻa ka manaʻo polarity o ka hao magnetized a me ka magnet, a ua paʻa ka hao me ka magnet.
2. Pehea e wehewehe ai i ka hana a ka magnet?
Aia ʻekolu mau ʻāpana hana e hoʻoholo ai i ka hana o ka magnet:
Remanent Br: Ma hope o ka hoʻoneʻe ʻia ʻana o ka magnet mau loa i ka saturation ʻenehana a hoʻoneʻe ʻia ke kahua magnetic o waho, ua kapa ʻia ka Br i hoʻopaʻa ʻia i ke koena o ka ikaika induction magnetic.
Coercivity Hc: No ka hoʻohaʻahaʻa ʻana i ka B o ka magnet paʻa i hoʻopaneʻe ʻia i ka saturation ʻenehana i ka ʻole, ua kapa ʻia ka ikaika o ke kahua hoʻohuli i makemake ʻia he magnetic coercivity, a i ʻole coercivity no ka pōkole.
Huahana ikehu mākēneki BH: e hōʻike ana i ka ikehu mākēneki i hoʻokumu ʻia e ka mea hoʻokalakupua i loko o ka hakahaka o ka ea (ka hakahaka ma waena o ʻelua mau mākia mākēneki), ʻo ia hoʻi, ka ikehu mākēneki paʻa i kēlā me kēia ʻāpana leo o ka hakahaka ea.
3. Pehea e hoʻokaʻawale ai i nā mea metala magnetic?
Hoʻokaʻawale ʻia nā mea magnetic metala i nā mea magnetic mau a me nā mea magnetic palupalu. ʻO ka mea maʻamau, kapa ʻia ka mea me ka coercivity intrinsic i ʻoi aku ma mua o 0.8kA/m, a ʻo ka mea me ka coercivity intrinsic ma lalo o 0.8kA/m, ua kapa ʻia ʻo ia ka mea palupalu palupalu.
4. Ka hoʻohālikelike ʻana i ka mana mākēneki o nā ʻano mea hoʻohana maʻamau
Ka ikaika mai ka nui a ka liʻiliʻi: Ndfeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet.
5. Hoʻohālikelike valence pili i nā mea magnetic like ʻole?
Ferrite: haʻahaʻa a me ka hana maʻamau, ke kumu kūʻai haʻahaʻa, nā hiʻohiʻona maikaʻi o ka mahana, ka pale ʻana i ka corrosion, ka lakene kumukūʻai maikaʻi
Ndfeb: ka hana kiʻekiʻe, ke kumu kūʻai waena, ka ikaika maikaʻi, ʻaʻole kū i ka wela kiʻekiʻe a me ka corrosion
Samarium cobalt: hana kiʻekiʻe, ke kumu kūʻai kiʻekiʻe loa, brittle, nā ʻano wela maikaʻi loa, ka pale ʻana i ka corrosion
Aluminum nickel cobalt: haʻahaʻa a me ka hana maʻamau, ke kumu kūʻai waena, nā hiʻohiʻona maikaʻi loa, ka pale ʻana i ka corrosion, ke kūʻokoʻa ʻino.
Hiki ke hana ʻia ʻo Samarium cobalt, ferrite, Ndfeb ma ke ʻano sintering a me ka hoʻopaʻa ʻana. He kiʻekiʻe ka waiwai magnetic sintering, ʻilihune ka hana ʻana, a maikaʻi ka magnet hoʻopaʻa ʻana a hoʻemi nui ʻia ka hana. Hiki ke hana ʻia ʻo AlNiCo e ka hoʻolei ʻana a me nā ʻano sintering, ʻoi aku ka kiʻekiʻe o nā mea hoʻokalakupua a me ka maikaʻi ʻole, a ʻo nā magnet sintered he mau waiwai haʻahaʻa a ʻoi aku ka maikaʻi.
6. Nā hiʻohiʻona o Ndfeb magnet
ʻO Ndfeb mau mea hoʻopalekana mau loa he mea maʻemaʻe mau loa ia e pili ana i ka pūhui intermetallic Nd2Fe14B. Loaʻa iā Ndfeb kahi huahana ikehu kiʻekiʻe a me ka ikaika, a ʻo nā mea maikaʻi o ke kiʻekiʻe o ka ikehu kiʻekiʻe e hoʻohana nui ʻia ka ndFEB i nā ʻoihana hou a me nā ʻenehana uila, no laila e lilo nā mea kani, electroacoustic motors, magnetic separation magnetization mea miniaturization, māmā kaumaha, lahilahi. hiki.
Nā hiʻohiʻona waiwai: Loaʻa iā Ndfeb nā mea maikaʻi o ka hana kiʻekiʻe, me nā ʻano mechanical maikaʻi; ʻO ka hemahema ʻo ka haʻahaʻa haʻahaʻa o ka Curie wela, ʻilihune ka ʻano wela, a maʻalahi hoʻi i ka pauka corrosion, no laila pono e hoʻomaikaʻi ʻia ma ka hoʻoponopono ʻana i kāna ʻano kemika a me ka hoʻohana ʻana i ka lāʻau lapaʻau e hoʻokō i nā koi o ka hoʻohana pono.
Kaʻina hana: ʻO ka hana ʻana o Ndfeb me ka hoʻohana ʻana i ke kaʻina hana metallurgy pauka.
Kaʻina kaʻina hana: ʻohi â†' hoʻoheheʻe ingot hana â†' pauka hana â†' kaomi â†' sintering tempering â†' magnetic detection â†' wili â†' ʻoki ʻoki â†' electroplating â†' huahana pau.
7. He aha ka magnet ʻaoʻao hoʻokahi?
ʻElua mau pou o ka Magnet, akā i kekahi kūlana hana pono i nā pole hoʻokahi, no laila pono mākou e hoʻohana i ka hao i kahi pahu magnet, hao ma ka ʻaoʻao o ka pale magnetic, a ma o ka refraction i kēlā ʻaoʻao o ka pā magnet, e hana i ka ʻē aʻe. ʻO ka ʻaoʻao o ka hoʻoikaika magnet magnetic, ua ʻike ʻia ia mau mea magnet hoʻokahi a i ʻole nā magnet. ʻAʻohe mea e like me ka magnet ʻaoʻao hoʻokahi.
ʻO ka mea i hoʻohana ʻia no ka magnet ʻaoʻao hoʻokahi, ʻo ia ka pahu hao arc a me ka magnet ikaika Ndfeb, ʻo ke ʻano o ka magnet ʻaoʻao hoʻokahi no ndFEB ikaika ikaika he ʻano poepoe.
8. He aha ka hoʻohana ʻana i nā magnet ʻaoʻao hoʻokahi?
(1) Hoʻohana nui ia i ka ʻoihana paʻi. Aia nā mākēneki ʻaoʻao hoʻokahi i nā pahu makana, nā pahu kelepona paʻa, nā pahu paka a me nā pahu waina, nā pahu kelepona paʻa, nā pahu MP3, nā pahu keke mahina a me nā huahana ʻē aʻe.
(2) Hoʻohana nui ʻia ia i ka ʻoihana waiwai ʻili. ʻO nā ʻeke, nā ʻeke pōkole, nā ʻeke huakaʻi, nā pahu kelepona paʻa, nā ʻeke a me nā mea ʻili ʻē aʻe i loaʻa nā magnets ʻaoʻao hoʻokahi.
(3) Hoʻohana nui ʻia ia i ka ʻoihana waihona. Aia nā mākēneki ʻaoʻao hoʻokahi i nā puke puke, nā pihi papa keʻokeʻo, nā waihona, nā papa inoa magnetic a pēlā aku.
9. He aha ka mea e pono e makaʻala i ka wā o ka lawe ʻana i nā magnet?
E hoʻolohe i ka haʻahaʻa o loko, pono e mālama ʻia ma kahi pae maloʻo. Mai ʻoi aku ma mua o ka lumi wela; Hiki ke uhi pono ia me ka aila (general oil); Pono e hoʻopaʻa ʻia nā huahana electroplating a i ʻole ka waiho ʻana i ka ea, e hōʻoia i ka pale ʻana i ka corrosion o ka uhi; Pono e omo pu ia na mea hana magneti a waiho i loko o na pahu i ole e omo i na kino metala e ae; Pono e mālama ʻia nā huahana hoʻopaneʻe mai nā diski magnetic, nā kāleka magnetic, nā lipine magnetic, nā kiaʻi kamepiula, nā wati a me nā mea koʻikoʻi ʻē aʻe. Pono e pale ʻia ka mokuʻāina magnetization i ka wā o ka lawe ʻana, ʻoi aku ka pale ʻana i ka ea.
10. Pehea e hoʻokō ai i ka hoʻokaʻawale magnetic?
ʻO nā mea wale nō i hiki ke hoʻopili ʻia i kahi magnet hiki ke ālai i ke kahua magnetic, a ʻo ka mānoanoa o ka mea, ʻoi aku ka maikaʻi.
11. ʻO wai ka mea ferrite e hoʻokele i ka uila?
Loaʻa ka ferrite magnetic palupalu i ka mea conductivity magnetic, kikoʻī kiʻekiʻe permeability, kiʻekiʻe resistivity, hoʻohana maʻamau i ke alapine kiʻekiʻe, hoʻohana nui ʻia i ke kamaʻilio uila. E like me nā kamepiula a me nā TVS a mākou e pā ai i kēlā me kēia lā, aia nā noi i loko o lākou.
ʻO ka ferrite palupalu ka nui o ka manganese-zinc a me ka nickel-zinc etc. ʻOi aku ka nui o ka conductivity magnetic nickel-zinc ferrite ma mua o ka nickel-zinc ferrite.
He aha ka mahana Curie o ka ferrite magnet mau?
Ua hōʻike ʻia ʻo ka mahana Curie o ka ferrite ma kahi o 450℃, maʻamau ka nui a i ʻole like me 450℃. ʻO ka paʻakikī ma kahi o 480-580. ʻO ka mahana Curie o Ndfeb magnet ma waena o 350-370℃. Akā, ʻaʻole hiki i ka mahana hoʻohana o Ndfeb magnet ke hiki i ka mahana Curie, ʻoi aku ka mahana ma mua o 180-200℃ ka waiwai magnetic i attenuated nui, ua nui loa ka poho magnetic, ua nalowale ka waiwai hoʻohana.
13. He aha nā palena kūpono o ke kumu magnetic?
Loaʻa nā ʻano geometric ʻokoʻa i nā cores magnetic, ʻoi aku ka nui o nā mea ferrite. No ka hoʻokō ʻana i nā koi hoʻolālā like ʻole, helu ʻia ka nui o ke kumu e kūpono i nā koi optimization. Aia kēia mau ʻāpana koʻikoʻi i nā ʻāpana kino e like me ke ala magnetic, kahi kūpono a me ka leo kūpono.
14. No ke aha he mea nui ka radius kihi no ka wili?
He mea koʻikoʻi ka radius angular no ka mea inā ʻoi aku ka ʻoi o ka ʻaoʻao o ke kumu, hiki iā ia ke wāwahi i ka insulation o ke uea i ka wā o ke kaʻina wili pololei. E hōʻoia i ka maʻalahi o nā ʻaoʻao kumu. ʻO nā ʻāpana ferrite he mau mole me kahi radius pōʻai maʻamau, a hoʻomaʻamaʻa ʻia kēia mau cores e hoʻemi i ka ʻoi o ko lākou mau kihi. Eia kekahi, ua pena ʻia ka hapa nui o nā cores a i uhi ʻia ʻaʻole wale e hoʻolilo i ko lākou mau kihi i ka passivated, akā e hoʻomaʻamaʻa hoʻi i ko lākou ʻili wili. He radius puʻupuʻu ko ke kumu pauda ma kekahi ʻaoʻao a he semi-poʻai deburring ma kekahi ʻaoʻao. No nā mea ferrite, hāʻawi ʻia kahi uhi lihi hou.
15. He aha ke ʻano o ka magnetic core i kūpono no ka hana ʻana i nā transformers?
No ka hoʻokō ʻana i nā pono o ka mea transformer core e loaʻa i kahi kiʻekiʻe magnetic induction ikaika ma kekahi ʻaoʻao, ma ka ʻaoʻao ʻē aʻe e mālama i kona piʻi ʻana o ka mahana i loko o kahi palena.
No ka inductance, ka magnetic core pono e loaʻa i kekahi ea ea e hōʻoia i ka mea i kekahi pae o ka permeability ma ka hihia o kiʻekiʻe DC a AC kaʻa, ferrite a me ka core hiki ke ea lapaʻau lapaʻau, pauda kumu i kona pono'ī ea āpau.
16. He aha ke ʻano o ke kumu magnetic maikaʻi loa?
Pono e ʻōlelo ʻia ʻaʻohe pane i ka pilikia, no ka mea, ua hoʻoholo ʻia ke koho ʻana o ka magnetic core ma ke kumu o nā noi a me ka pinepine o ka noi, etc. piʻi wela mea liʻiliʻi, akā, he pipiʻi ke kumu kūʻai, no laila, ke koho mea kū'ē kiʻekiʻe wela, Ua hiki ke koho i ka nui nui akā, i ka mea me ka haʻahaʻa kumu kūʻai e hoʻopau i ka hana, no laila, ke koho o ka maikai mea i ka noi koi. no kāu inductor mua a i ʻole transformer, mai kēia manawa, ʻo ke alapine hana a me ke kumukūʻai nā mea nui, e like me ke koho maikaʻi ʻana o nā mea like ʻole e pili ana i ke alapine hoʻololi, ka mahana a me ka mānoanoa flux magnetic.
17. He aha ke apo magnetic anti-interference?
Ua kapa ʻia ke apo magnetic anti-interference. Call source anti-interference magnetic ring, ʻo ia ka mea hiki ke pāʻani i ke ʻano o ka anti-interference, no ka laʻana, nā huahana uila, e ka hōʻailona hoʻopilikia o waho, ka hoʻouka ʻana o nā huahana uila, nā huahana uila i loaʻa i ka hōʻailona hōʻailona waho, ʻaʻole i loaʻa. hiki ke holo maʻamau, a me ka anti-interference magnetic apo, hiki ke loaʻa i kēia hana, ʻoiai ka lōʻihi o nā huahana a me ke apo magnetic anti-interference, hiki iā ia ke pale i ka hōʻailona o waho i nā huahana uila, hiki iā ia ke hana i nā huahana uila e holo maʻamau a pāʻani i kahi hopena anti-interference, no laila ua kapa ʻia ʻo ia ke apo magnetic anti-interference.
Ua ʻike ʻia ke apo magnetic anti-interference he apo magnetic ferrite, no ka mea, ua hana ʻia ke apo ferrite me ka hao oxide, nickel oxide, zinc oxide, copper oxide a me nā mea ferrite ʻē aʻe, no ka mea aia kēia mau mea i nā mea ferrite, a me nā mea ferrite i hana ʻia e ka ʻO ka huahana e like me ke apo, no laila ua kapa ʻia ʻo ferrite magnetic ring.
18. Pehea e demagnetize ai ke kumu magnetic?
ʻO ke ʻano o ka hoʻopili ʻana i kahi ʻano ʻokoʻa o 60Hz i ke kumu i lawa ka hoʻokele kaʻa mua e hoʻopiha i nā hopena maikaʻi a maikaʻi ʻole, a laila hoʻohaʻahaʻa mālie i ka pae hoʻokele, hana pinepine ʻia a hāʻule i ka zero. A ʻo ia ka mea e hoʻihoʻi hou i kona kūlana mua.
He aha ka magnetoelasticity (magnetostriction)?
Ma hope o ka hoʻopololei ʻia ʻana o ka mea magnetic, e hoʻololi iki ʻia ka geometry. Pono kēia hoʻololi i ka nui ma ke kauoha o kekahi mau ʻāpana o ka miliona, i kapa ʻia ʻo magnetostriction. No kekahi mau noi, e like me nā ultrasonic generators, ua lawe ʻia ka pono o kēia waiwai no ka loaʻa ʻana o ka mechanical deformation e ka magnetically excited magnetostriction. Ma nā ʻaoʻao ʻē aʻe, ʻike ʻia kahi walaʻau puʻupuʻu i ka wā e hana ana ma ke ʻano alapine audible. No laila, hiki ke hoʻohana ʻia nā mea haʻahaʻa magnetic shrinkage i kēia hihia.
20. He aha ke ʻano like ʻole o ka magnetic?
Loaʻa kēia hanana i nā ferrites a ua ʻike ʻia e ka emi ʻana o ka permeability i hana ʻia i ka wā e demagnetized ke kumu. Hiki ke hana kēia demagnetization i ka wā i ʻoi aku ka kiʻekiʻe o ka mahana hana ma mua o ka mahana o ka Curie point, a me ka hoʻohana ʻana i ke ʻano o kēia manawa a i ʻole ka haʻalulu mechanical e emi mālie.
Ma kēia ʻano, piʻi mua ka permeability i kona pae kumu a laila e emi koke ka exponentially. Inā ʻaʻohe kūlana kūikawā e manaʻo ʻia e ka noi, e liʻiliʻi ka loli o ka permeability, no ka mea, nui nā loli e hiki mai i nā mahina ma hope o ka hana ʻana. ʻO nā wela kiʻekiʻe e hoʻolalelale i kēia emi ʻana o ka permeability. Hoʻomaʻamaʻa hou ʻia ka dissonance ma hope o kēlā me kēia demagnetization kūleʻa a no laila ʻokoʻa mai ka ʻelemakule.
ʻO ka hapa nui o nā mea i hana ʻia me nā molekala i hana ʻia me nā ʻātoma i hana ʻia me nā nuclei a me nā electrons. I loko o kahi ʻātoma, wili a wili nā electrons a puni ka nucleus, ʻo ia mau mea ʻelua e hana i ka magnetism. Akā i ka nui o nā mea, neʻe nā electrons i nā ʻano kuhikuhi āpau, a hoʻopau nā hopena magnetic kekahi i kekahi. No laila, ʻaʻole hōʻike ka hapa nui o nā mea i ka magnetism ma lalo o nā kūlana maʻamau.
ʻAʻole like me nā mea ferromagnetic e like me ka hao, cobalt, nickel a ferrite, hiki i nā wili electron i loko ke laina maʻamau i nā wahi liʻiliʻi, e hana ana i kahi ʻāpana magnetization spontaneous i kapa ʻia he domain magnetic. Ke hoʻokalakupua ʻia nā mea ferromagnetic, hoʻopili pololei ko lākou mau kikowaena magnetic kūloko a ma ke ala like, e hoʻoikaika ana i ka magnetism a hana i nā magnet. ʻO ke kaʻina hana magnetization o ka magnet ka hana magnetization o ka hao. He ʻokoʻa ka manaʻo polarity o ka hao magnetized a me ka magnet, a ua paʻa ka hao me ka magnet.
2. Pehea e wehewehe ai i ka hana a ka magnet?
Aia ʻekolu mau ʻāpana hana e hoʻoholo ai i ka hana o ka magnet:
Remanent Br: Ma hope o ka hoʻoneʻe ʻia ʻana o ka magnet mau loa i ka saturation ʻenehana a hoʻoneʻe ʻia ke kahua magnetic o waho, ua kapa ʻia ka Br i hoʻopaʻa ʻia i ke koena o ka ikaika induction magnetic.
Coercivity Hc: No ka hoʻohaʻahaʻa ʻana i ka B o ka magnet paʻa i hoʻopaneʻe ʻia i ka saturation ʻenehana i ka ʻole, ua kapa ʻia ka ikaika o ke kahua hoʻohuli i makemake ʻia he magnetic coercivity, a i ʻole coercivity no ka pōkole.
Huahana ikehu mākēneki BH: e hōʻike ana i ka ikehu mākēneki i hoʻokumu ʻia e ka mea hoʻokalakupua i loko o ka hakahaka o ka ea (ka hakahaka ma waena o ʻelua mau mākia mākēneki), ʻo ia hoʻi, ka ikehu mākēneki paʻa i kēlā me kēia ʻāpana leo o ka hakahaka ea.
3. Pehea e hoʻokaʻawale ai i nā mea metala magnetic?
Hoʻokaʻawale ʻia nā mea magnetic metala i nā mea magnetic mau a me nā mea magnetic palupalu. ʻO ka mea maʻamau, kapa ʻia ka mea me ka coercivity intrinsic i ʻoi aku ma mua o 0.8kA/m, a ʻo ka mea me ka coercivity intrinsic ma lalo o 0.8kA/m, ua kapa ʻia ʻo ia ka mea palupalu palupalu.
4. Ka hoʻohālikelike ʻana i ka mana mākēneki o nā ʻano mea hoʻohana maʻamau
Ka ikaika mai ka nui a ka liʻiliʻi: Ndfeb magnet, samarium cobalt magnet, aluminum nickel cobalt magnet, ferrite magnet.
5. Hoʻohālikelike valence pili i nā mea magnetic like ʻole?
Ferrite: haʻahaʻa a me ka hana maʻamau, ke kumu kūʻai haʻahaʻa, nā hiʻohiʻona maikaʻi o ka mahana, ka pale ʻana i ka corrosion, ka lakene kumukūʻai maikaʻi
Ndfeb: ka hana kiʻekiʻe, ke kumu kūʻai waena, ka ikaika maikaʻi, ʻaʻole kū i ka wela kiʻekiʻe a me ka corrosion
Samarium cobalt: hana kiʻekiʻe, ke kumu kūʻai kiʻekiʻe loa, brittle, nā ʻano wela maikaʻi loa, ka pale ʻana i ka corrosion
Aluminum nickel cobalt: haʻahaʻa a me ka hana maʻamau, ke kumu kūʻai waena, nā hiʻohiʻona maikaʻi loa, ka pale ʻana i ka corrosion, ke kūʻokoʻa ʻino.
Hiki ke hana ʻia ʻo Samarium cobalt, ferrite, Ndfeb ma ke ʻano sintering a me ka hoʻopaʻa ʻana. He kiʻekiʻe ka waiwai magnetic sintering, ʻilihune ka hana ʻana, a maikaʻi ka magnet hoʻopaʻa ʻana a hoʻemi nui ʻia ka hana. Hiki ke hana ʻia ʻo AlNiCo e ka hoʻolei ʻana a me nā ʻano sintering, ʻoi aku ka kiʻekiʻe o nā mea hoʻokalakupua a me ka maikaʻi ʻole, a ʻo nā magnet sintered he mau waiwai haʻahaʻa a ʻoi aku ka maikaʻi.
6. Nā hiʻohiʻona o Ndfeb magnet
ʻO Ndfeb mau mea hoʻopalekana mau loa he mea maʻemaʻe mau loa ia e pili ana i ka pūhui intermetallic Nd2Fe14B. Loaʻa iā Ndfeb kahi huahana ikehu kiʻekiʻe a me ka ikaika, a ʻo nā mea maikaʻi o ke kiʻekiʻe o ka ikehu kiʻekiʻe e hoʻohana nui ʻia ka ndFEB i nā ʻoihana hou a me nā ʻenehana uila, no laila e lilo nā mea kani, electroacoustic motors, magnetic separation magnetization mea miniaturization, māmā kaumaha, lahilahi. hiki.
Nā hiʻohiʻona waiwai: Loaʻa iā Ndfeb nā mea maikaʻi o ka hana kiʻekiʻe, me nā ʻano mechanical maikaʻi; ʻO ka hemahema ʻo ka haʻahaʻa haʻahaʻa o ka Curie wela, ʻilihune ka ʻano wela, a maʻalahi hoʻi i ka pauka corrosion, no laila pono e hoʻomaikaʻi ʻia ma ka hoʻoponopono ʻana i kāna ʻano kemika a me ka hoʻohana ʻana i ka lāʻau lapaʻau e hoʻokō i nā koi o ka hoʻohana pono.
Kaʻina hana: ʻO ka hana ʻana o Ndfeb me ka hoʻohana ʻana i ke kaʻina hana metallurgy pauka.
Kaʻina kaʻina hana: ʻohi â†' hoʻoheheʻe ingot hana â†' pauka hana â†' kaomi â†' sintering tempering â†' magnetic detection â†' wili â†' ʻoki ʻoki â†' electroplating â†' huahana pau.
7. He aha ka magnet ʻaoʻao hoʻokahi?
ʻElua mau pou o ka Magnet, akā i kekahi kūlana hana pono i nā pole hoʻokahi, no laila pono mākou e hoʻohana i ka hao i kahi pahu magnet, hao ma ka ʻaoʻao o ka pale magnetic, a ma o ka refraction i kēlā ʻaoʻao o ka pā magnet, e hana i ka ʻē aʻe. ʻO ka ʻaoʻao o ka hoʻoikaika magnet magnetic, ua ʻike ʻia ia mau mea magnet hoʻokahi a i ʻole nā magnet. ʻAʻohe mea e like me ka magnet ʻaoʻao hoʻokahi.
ʻO ka mea i hoʻohana ʻia no ka magnet ʻaoʻao hoʻokahi, ʻo ia ka pahu hao arc a me ka magnet ikaika Ndfeb, ʻo ke ʻano o ka magnet ʻaoʻao hoʻokahi no ndFEB ikaika ikaika he ʻano poepoe.
8. He aha ka hoʻohana ʻana i nā magnet ʻaoʻao hoʻokahi?
(1) Hoʻohana nui ia i ka ʻoihana paʻi. Aia nā mākēneki ʻaoʻao hoʻokahi i nā pahu makana, nā pahu kelepona paʻa, nā pahu paka a me nā pahu waina, nā pahu kelepona paʻa, nā pahu MP3, nā pahu keke mahina a me nā huahana ʻē aʻe.
(2) Hoʻohana nui ʻia ia i ka ʻoihana waiwai ʻili. ʻO nā ʻeke, nā ʻeke pōkole, nā ʻeke huakaʻi, nā pahu kelepona paʻa, nā ʻeke a me nā mea ʻili ʻē aʻe i loaʻa nā magnets ʻaoʻao hoʻokahi.
(3) Hoʻohana nui ʻia ia i ka ʻoihana waihona. Aia nā mākēneki ʻaoʻao hoʻokahi i nā puke puke, nā pihi papa keʻokeʻo, nā waihona, nā papa inoa magnetic a pēlā aku.
9. He aha ka mea e pono e makaʻala i ka wā o ka lawe ʻana i nā magnet?
E hoʻolohe i ka haʻahaʻa o loko, pono e mālama ʻia ma kahi pae maloʻo. Mai ʻoi aku ma mua o ka lumi wela; Hiki ke uhi pono ia me ka aila (general oil); Pono e hoʻopaʻa ʻia nā huahana electroplating a i ʻole ka waiho ʻana i ka ea, e hōʻoia i ka pale ʻana i ka corrosion o ka uhi; Pono e omo pu ia na mea hana magneti a waiho i loko o na pahu i ole e omo i na kino metala e ae; Pono e mālama ʻia nā huahana hoʻopaneʻe mai nā diski magnetic, nā kāleka magnetic, nā lipine magnetic, nā kiaʻi kamepiula, nā wati a me nā mea koʻikoʻi ʻē aʻe. Pono e pale ʻia ka mokuʻāina magnetization i ka wā o ka lawe ʻana, ʻoi aku ka pale ʻana i ka ea.
10. Pehea e hoʻokō ai i ka hoʻokaʻawale magnetic?
ʻO nā mea wale nō i hiki ke hoʻopili ʻia i kahi magnet hiki ke ālai i ke kahua magnetic, a ʻo ka mānoanoa o ka mea, ʻoi aku ka maikaʻi.
11. ʻO wai ka mea ferrite e hoʻokele i ka uila?
Loaʻa ka ferrite magnetic palupalu i ka mea conductivity magnetic, kikoʻī kiʻekiʻe permeability, kiʻekiʻe resistivity, hoʻohana maʻamau i ke alapine kiʻekiʻe, hoʻohana nui ʻia i ke kamaʻilio uila. E like me nā kamepiula a me nā TVS a mākou e pā ai i kēlā me kēia lā, aia nā noi i loko o lākou.
ʻO ka ferrite palupalu ka nui o ka manganese-zinc a me ka nickel-zinc etc. ʻOi aku ka nui o ka conductivity magnetic nickel-zinc ferrite ma mua o ka nickel-zinc ferrite.
He aha ka mahana Curie o ka ferrite magnet mau?
Ua hōʻike ʻia ʻo ka mahana Curie o ka ferrite ma kahi o 450℃, maʻamau ka nui a i ʻole like me 450℃. ʻO ka paʻakikī ma kahi o 480-580. ʻO ka mahana Curie o Ndfeb magnet ma waena o 350-370℃. Akā, ʻaʻole hiki i ka mahana hoʻohana o Ndfeb magnet ke hiki i ka mahana Curie, ʻoi aku ka mahana ma mua o 180-200℃ ka waiwai magnetic i attenuated nui, ua nui loa ka poho magnetic, ua nalowale ka waiwai hoʻohana.
13. He aha nā palena kūpono o ke kumu magnetic?
Loaʻa nā ʻano geometric ʻokoʻa i nā cores magnetic, ʻoi aku ka nui o nā mea ferrite. No ka hoʻokō ʻana i nā koi hoʻolālā like ʻole, helu ʻia ka nui o ke kumu e kūpono i nā koi optimization. Aia kēia mau ʻāpana koʻikoʻi i nā ʻāpana kino e like me ke ala magnetic, kahi kūpono a me ka leo kūpono.
14. No ke aha he mea nui ka radius kihi no ka wili?
He mea koʻikoʻi ka radius angular no ka mea inā ʻoi aku ka ʻoi o ka ʻaoʻao o ke kumu, hiki iā ia ke wāwahi i ka insulation o ke uea i ka wā o ke kaʻina wili pololei. E hōʻoia i ka maʻalahi o nā ʻaoʻao kumu. ʻO nā ʻāpana ferrite he mau mole me kahi radius pōʻai maʻamau, a hoʻomaʻamaʻa ʻia kēia mau cores e hoʻemi i ka ʻoi o ko lākou mau kihi. Eia kekahi, ua pena ʻia ka hapa nui o nā cores a i uhi ʻia ʻaʻole wale e hoʻolilo i ko lākou mau kihi i ka passivated, akā e hoʻomaʻamaʻa hoʻi i ko lākou ʻili wili. He radius puʻupuʻu ko ke kumu pauda ma kekahi ʻaoʻao a he semi-poʻai deburring ma kekahi ʻaoʻao. No nā mea ferrite, hāʻawi ʻia kahi uhi lihi hou.
15. He aha ke ʻano o ka magnetic core i kūpono no ka hana ʻana i nā transformers?
No ka hoʻokō ʻana i nā pono o ka mea transformer core e loaʻa i kahi kiʻekiʻe magnetic induction ikaika ma kekahi ʻaoʻao, ma ka ʻaoʻao ʻē aʻe e mālama i kona piʻi ʻana o ka mahana i loko o kahi palena.
No ka inductance, ka magnetic core pono e loaʻa i kekahi ea ea e hōʻoia i ka mea i kekahi pae o ka permeability ma ka hihia o kiʻekiʻe DC a AC kaʻa, ferrite a me ka core hiki ke ea lapaʻau lapaʻau, pauda kumu i kona pono'ī ea āpau.
16. He aha ke ʻano o ke kumu magnetic maikaʻi loa?
Pono e ʻōlelo ʻia ʻaʻohe pane i ka pilikia, no ka mea, ua hoʻoholo ʻia ke koho ʻana o ka magnetic core ma ke kumu o nā noi a me ka pinepine o ka noi, etc. piʻi wela mea liʻiliʻi, akā, he pipiʻi ke kumu kūʻai, no laila, ke koho mea kū'ē kiʻekiʻe wela, Ua hiki ke koho i ka nui nui akā, i ka mea me ka haʻahaʻa kumu kūʻai e hoʻopau i ka hana, no laila, ke koho o ka maikai mea i ka noi koi. no kāu inductor mua a i ʻole transformer, mai kēia manawa, ʻo ke alapine hana a me ke kumukūʻai nā mea nui, e like me ke koho maikaʻi ʻana o nā mea like ʻole e pili ana i ke alapine hoʻololi, ka mahana a me ka mānoanoa flux magnetic.
17. He aha ke apo magnetic anti-interference?
Ua kapa ʻia ke apo magnetic anti-interference. Call source anti-interference magnetic ring, ʻo ia ka mea hiki ke pāʻani i ke ʻano o ka anti-interference, no ka laʻana, nā huahana uila, e ka hōʻailona hoʻopilikia o waho, ka hoʻouka ʻana o nā huahana uila, nā huahana uila i loaʻa i ka hōʻailona hōʻailona waho, ʻaʻole i loaʻa. hiki ke holo maʻamau, a me ka anti-interference magnetic apo, hiki ke loaʻa i kēia hana, ʻoiai ka lōʻihi o nā huahana a me ke apo magnetic anti-interference, hiki iā ia ke pale i ka hōʻailona o waho i nā huahana uila, hiki iā ia ke hana i nā huahana uila e holo maʻamau a pāʻani i kahi hopena anti-interference, no laila ua kapa ʻia ʻo ia ke apo magnetic anti-interference.
Ua ʻike ʻia ke apo magnetic anti-interference he apo magnetic ferrite, no ka mea, ua hana ʻia ke apo ferrite me ka hao oxide, nickel oxide, zinc oxide, copper oxide a me nā mea ferrite ʻē aʻe, no ka mea aia kēia mau mea i nā mea ferrite, a me nā mea ferrite i hana ʻia e ka ʻO ka huahana e like me ke apo, no laila ua kapa ʻia ʻo ferrite magnetic ring.
18. Pehea e demagnetize ai ke kumu magnetic?
ʻO ke ʻano o ka hoʻopili ʻana i kahi ʻano ʻokoʻa o 60Hz i ke kumu i lawa ka hoʻokele kaʻa mua e hoʻopiha i nā hopena maikaʻi a maikaʻi ʻole, a laila hoʻohaʻahaʻa mālie i ka pae hoʻokele, hana pinepine ʻia a hāʻule i ka zero. A ʻo ia ka mea e hoʻihoʻi hou i kona kūlana mua.
He aha ka magnetoelasticity (magnetostriction)?
Ma hope o ka hoʻopololei ʻia ʻana o ka mea magnetic, e hoʻololi iki ʻia ka geometry. Pono kēia hoʻololi i ka nui ma ke kauoha o kekahi mau ʻāpana o ka miliona, i kapa ʻia ʻo magnetostriction. No kekahi mau noi, e like me nā ultrasonic generators, ua lawe ʻia ka pono o kēia waiwai no ka loaʻa ʻana o ka mechanical deformation e ka magnetically excited magnetostriction. Ma nā ʻaoʻao ʻē aʻe, ʻike ʻia kahi walaʻau puʻupuʻu i ka wā e hana ana ma ke ʻano alapine audible. No laila, hiki ke hoʻohana ʻia nā mea haʻahaʻa magnetic shrinkage i kēia hihia.
20. He aha ke ʻano like ʻole o ka magnetic?
Loaʻa kēia hanana i nā ferrites a ua ʻike ʻia e ka emi ʻana o ka permeability i hana ʻia i ka wā e demagnetized ke kumu. Hiki ke hana kēia demagnetization i ka wā i ʻoi aku ka kiʻekiʻe o ka mahana hana ma mua o ka mahana o ka Curie point, a me ka hoʻohana ʻana i ke ʻano o kēia manawa a i ʻole ka haʻalulu mechanical e emi mālie.
Ma kēia ʻano, piʻi mua ka permeability i kona pae kumu a laila e emi koke ka exponentially. Inā ʻaʻohe kūlana kūikawā e manaʻo ʻia e ka noi, e liʻiliʻi ka loli o ka permeability, no ka mea, nui nā loli e hiki mai i nā mahina ma hope o ka hana ʻana. ʻO nā wela kiʻekiʻe e hoʻolalelale i kēia emi ʻana o ka permeability. Hoʻomaʻamaʻa hou ʻia ka dissonance ma hope o kēlā me kēia demagnetization kūleʻa a no laila ʻokoʻa mai ka ʻelemakule.
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