Sintered NdFeB mau mākēneki mau, ʻo ia kekahi o nā mea nui e hoʻolaha ai i ka ʻenehana o kēia wā a me ka holomua o ka nohona, ua hoʻohana nui ʻia i kēia mau ʻano: kamepiula hard disk, nuklea magnetic resonance imaging, nā kaʻa uila, ka mana makani, nā ʻenekini paʻa mau ʻoihana, nā mea uila uila. (CD, DVD, kelepona paʻalima, leo, kope, scanners, pahupaʻiwikiō, pahupaʻikiʻi, pahu hau, TV, air conditioners, etc.) ʻenehana levitation, hoʻoili magnetic a me nā ʻoihana ʻē aʻe.
I nā makahiki he 30 i hala iho nei, ua ulu nui ka ʻoihana waiwai magnet honua mai ka makahiki 1985, i ka wā i hoʻomaka ai ka ʻoihana e hana ʻia ma Iapana, Kina, ʻEulopa a me ʻAmelika Hui Pū ʻIa, a ua hoʻonohonoho nā waiwai magnetic i nā moʻolelo hou a hoʻonui i ka helu nā ʻano mea a me nā māka. Me ka hoʻonui ʻana o ka mākeke, ke hoʻonui nei nā mea hana, a nui nā mea kūʻai aku e hopu ʻia i kēia huikau, pehea e hoʻokolokolo ai i ka pono o ka huahana? ʻO ke ala piha loa e hoʻokolokolo ai: ʻo ka mua, ka hana magnet; lua, ka nui magnet; ʻO ke kolu, ka uhi ʻana i ka magnet.
ʻO ka mea mua, ʻo ka hōʻoia ʻana o ka hana magnet mai ka mana o ke kaʻina hana o nā mea maka
1、E like me nā koi o ka ʻoihana hana kiʻekiʻe a i ʻole ka waena waena a i ʻole ka haʻahaʻa haʻahaʻa sintered NdFeB, ʻo ka haku kumu waiwai e like me ke kūlana aupuni e kūʻai i nā mea maka.
2、ʻO ke kaʻina hana holomua e hoʻoholo pololei i ka maikaʻi o ka hana o ka magnet. I kēia manawa, ʻo nā ʻenehana ʻoi loa ka ʻenehana Scaled Ingot Casting (SC), ʻenehana Hydrogen Crushing (HD) a me ka ʻenehana Airflow Mill (JM).
Ua hoʻololi ʻia nā kapuahi hoʻoheheʻe liʻiliʻi liʻiliʻi (10kg, 25kg, 50kg) e ka mana nui (100kg, 200kg, 600kg, 800kg) nā umu hoʻoheheʻe ʻana, SC (StripCasting) ʻenehana ua hoʻololi mālie i nā ingots nui (ingots me ka mānoanoa. 40mm i ke kuhikuhi hoʻoluʻu), HD (Hydrogen Crushing) ʻenehana a me ka mīkini holo kinoea (JM) ma kahi o ka jaw crusher, disc mill, ball mill (wet powder making), e hōʻoia i ka kūlike o ka pauka, a ua kūpono i ka sintering wai a me ka hoʻomaʻemaʻe palaoa.
3、Ma ka hoʻonohonoho ʻana i ka magnetic field, ʻo Kina wale nō ka ʻāina o ka honua e hoʻohana i ka hoʻoheheʻe ʻana i ʻelua mau ʻanuʻu, me ka hoʻoheheʻe ʻana i ke kaomi liʻiliʻi no ka orientation a me ka quasi-isostatic molding ma ka hopena, ʻo ia kekahi o nā hiʻohiʻona koʻikoʻi o ka sintered o Kina. ʻoihana NdFeB.
ʻO ka lua, ʻo ka hōʻoia ʻana o ka nui magnet ma muli o ka ikaika hana o ka hale hana
He ʻano ʻano like ʻole ka hoʻohana maoli ʻana o NdFeB mau magnet, e like me ka poepoe, cylindrical, cylindrical (me ka lua o loko); huinaha, huinaha, kolamu huinaha; tile, peʻahi, trapezoid, polygon a me nā ʻano like ʻole.
He ʻokoʻa ka nui o kēlā me kēia ʻano o nā magnet paʻa, a paʻakikī ke kaʻina hana i ka hana hoʻokahi. ʻO ke kaʻina hana maʻamau: ʻO Mr. output nui (nui nui) blanks, ma hope o ka sintering a me ka hoʻomaʻamaʻa ʻana, a laila ma o ka hana mechanical (me ka ʻoki ʻana, ka kuʻi ʻana) a me ka wili ʻana, ka hoʻopili ʻana i ka ʻili (coating), a laila ka hana magnet, ka maikaʻi o ka ʻili a me ʻO ka hoʻāʻo pololei ʻana o ka dimensional, a laila magnetization, packaging a me ka hale hana.
1, ua māhele ʻia ka hana ʻenehana i ʻekolu mau ʻāpana: (1) ka ʻoki ʻana: ʻoki ʻana i ka cylindrical, nā ʻāpana ʻāpana ʻāpana i loko o ka poepoe, ʻano ʻano ʻāpana, (2) ka hana ʻana i ke ʻano: ka hana ʻana a puni, nā magnet square i loko o ke ʻano fan-like, tile-like a i ʻole me nā mākēneki a i ʻole nā ʻano paʻakikī ʻē aʻe, (3) ka hana ʻana i ke kuʻi: ka hana ʻana i nā mākēneki a puni, nā ʻano pahu pāhaʻi i loko o nā magnet cylindrical a i ʻole ʻano huinaha. ʻO nāʻano hana: ka wiliʻana a me ka hoʻopiliʻana i ka hanaʻana, ka hanaʻokiʻoki EDM a me ka hana laser.
2、ʻO ka ʻili o ka NdFeB i hoʻopaʻa ʻia i nā mea hoʻoheheʻe mau loa e pono ai ka maʻalahi a me ka pololei, a ʻo ka ʻili o ka magnet i hāʻawi ʻia i ka blank e pono ai ka hana ʻana i ka ʻili. ʻO nā ʻano wili maʻamau no ka square NdFeB permanent magnet alloy he plane grinding, double end grinding, internal grinding, external grinding, etc. Cylindrical commonly used coreless grinding, double end grinding, etc. No ka tile, fan a me VCM magnets, multi-station grinding hoʻohana ʻia.
ʻAʻole pono e hoʻokō i ka maʻamau hana, akā ʻo ka mana hoʻomanawanui dimensional e pili pono i kāna noi. ʻO ka hōʻoia dimensional pili pololei i ka ikaika hana o ka hale hana. Hoʻonui mau ʻia nā mea hana me ka koi waiwai a me ka mākeke, a ʻo ke ʻano o nā mea hana ʻoi aku ka maikaʻi a me ka automation ʻoihana ʻaʻole wale no ka hoʻokō ʻana i ka ulu nui o nā mea kūʻai aku no ka pololei o ka huahana, akā no ka mālama ʻana i ka manpower a me ke kumukūʻai, e ʻoi aku ka hoʻokūkū ma. ka makeke.
Eia hou, ʻo ka maikaʻi o ka magnet plating e hoʻoholo pololei i ke ola noi o ka huahana
I ka ho'āʻo ʻana, e ʻānai ʻia kahi magnet NdFeB 1cm3 sintered e ka hoʻokahe inā waiho ʻia i ka lewa ma 150 ℃ no 51 mau lā. I loko o ka waiʻakika palupalu, ʻoi aku ka nui o ka ʻino. I mea e paʻa ai nā mākēneki mau NdFeB, pono e loaʻa ke ola lawelawe o 20-30 mau makahiki.
Pono e mālama ʻia me ka lāʻau anti-corrosion e pale aku i ka ʻino o ka magnet e ka media corrosive. I kēia manawa, ua uhi mau ʻia nā mākēneki NdFeB i hoʻopaʻa ʻia me ka hoʻoheheʻe metala, electroplating + chemical plating, electrophoretic coating a me ka lapaʻau phosphate e pale ai i ka magnet mai ka mea corrosive.
1, maʻamau galvanized, nickel + copper + nickel plating, nickel + copper + kemikal nickel plating ʻekolu kaʻina, nā koi ʻē aʻe metala plating, maʻamau e hoʻohana ʻia ma hope o ka nickel plating a laila hoʻohui ʻia nā mea metala ʻē aʻe.
2, i kekahi mau kūlana kūikawā e hoʻohana pū i ka phosphating: (1) i ka NdFeB magnet huahana no ka mea o ka turnover, ka malama ana o ka manawa lōʻihi loa a maopopo ole i ka wā o ka hope 'ilikai lapaʻau ala, ka hoʻohana 'ana i ka phosphating maʻalahi a me ka oluolu; (2) i ka wā e pono ai ka magnet i ka epoxy glue bonding, pena, a me nā mea ʻē aʻe, ke kāpili, ka pena a me nā epoxy organic adhesion e pono ai ka hana infiltration maikaʻi o ka substrate. Hiki i ke kaʻina hana Phosphating ke hoʻomaikaʻi i ka ʻili o ka hiki o ka magnet ke infiltrate.
3, ua lilo ka electrophoretic coating i kekahi o ka ʻenehana lapaʻau anti-corrosion surface. No ka mea, ʻaʻole ia wale nō ka paʻa maikaʻi me ka porous magnet surface, akā ke kū nei ka corrosion i ka paʻakai paʻakai, acid, alkali, etc., anti-corrosion maikaʻi loa. Eia nō naʻe, ʻilihune kona kūʻē ʻana i ka haʻahaʻa a me ka wela ke hoʻohālikelike ʻia me ka uhi ʻana.
Hiki i nā mea kūʻai ke koho i ka uhi e like me kā lākou huahana hana koi. Me ka hoʻonui ʻana o ke kahua noi kaʻa, ʻoi aku ka nui o nā mea kūʻai aku no ka pale ʻana i ka corrosion o NdFeB. ʻO ka ho'āʻo HAST (i kapa ʻia ʻo PCT test) ʻo ia ka hoʻāʻo ʻana i ke kūpaʻa ʻino ʻana o nā kiʻi paʻa NdFeB sintered ma lalo o ke kaiapuni humid a kiʻekiʻe.
A pehea e hiki ai i ka mea kūʻai ke hoʻoholo inā hoʻokō ka plating i nā koi a i ʻole? ʻO ke kumu o ka hoʻāʻo ʻana i ka paʻakai, ʻo ia ka hana ʻana i kahi hoʻāʻo anti-corrosion wikiwiki ma nā mea hoʻoheheʻe NdFeB sintered nona ka ʻili i mālama ʻia me ka uhi anti-corrosion. I ka pau ʻana o ka hoʻāʻo, lawe ʻia ka hāpana mai ke keʻena hoʻāʻo, maloʻo, a nānā ʻia me nā maka a i ʻole ke aniani hoʻonui e ʻike inā he mau kiko ma ka ʻili o ka hāpana, ka nui o ka hoʻololi ʻana o ka pahu wahi wahi.
Ka manawa hoʻouna: Jan-06-2023
