Neodymium Iron boron
Achọ nke ndọta NdFeB na-eto ngwa ngwa n'ahịa ụwa dị ka teknụzụ ozi , Motors, Medical equipment and so on.Neodymium magnets na-ejikarị eme ihe na mpaghara ndị a: Office Automation - Kọmputa nkeonwe, Copiers, Printer Electric Power - Flywheels, Ebe ike ikuku Sayensị na nyocha - ESR (electron spin resonance), Magnetik levitation, Photon ọgbọ Medicine - Dental ihe, Imaging Industry - Industrial robots, FA (factory automation), - Televisions, DVD (dijitalụ video diski). Ụgbọ njem - Obere moto, sensọ, ụgbọ ala, EV(ụgbọ ala eletrik, ụgbọ ala ngwakọ) Mgbasa ozi - Mobiles Communications, PHS(usoro ekwentị aka nke onwe) Nlekọta ahụike: MRI, akụrụngwa ọgwụgwọ ahụike. Ihe eji eme ihe kwa ụbọchị -- njide akụrụngwa magnetik, mgbachi magnet maka akpa na ọla, ngwa egwuregwu ụmụaka.
| Aha ngwaahịa | Neodymium Igwe Ọdụdọ, NdFeB Igwe Ọdụdọ | |
| Ihe onwunwe | Neodymium Iron boron | |
|
Ọkwa & Okpomọkụ arụ ọrụ | Ọkwa | Okpomọkụ na-arụ ọrụ |
| N30-N55 | + 80 ℃ | |
| N30M-N52 | + 100 ℃ | |
| N30H-N52H | + 120 ℃ | |
| N30SH-N50SH | + 150 ℃ | |
| N25UH-N50U | + 180 ℃ | |
| N28EH-N48EH | + 200 ℃ | |
| N28AH-N45AH | + 220 ℃ | |
| Ụdị | Disc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid and Regular shapes na ndị ọzọ. Ụdị ahaziri ahazi dị | |
| Mkpuchi | Ni, Zn, Au, Ag, Epoxy, Passivated, wdg. | |
| Ngwa | Sensọ, moto, ụgbọ ala nzacha, ihe njide magnetik, igwe okwu, igwe na-emepụta ikuku, akụrụngwa ọgwụ, wdg. | |
Ferrite / seramiiki
Nchịkọta:
Na-adịgide adịgide ferrite magnet, nke a makwaara dị ka magnetik siri ike, bụ ihe ndọta na-abụghị ọla. Na 1930, Kato na Wujing chọpụtara ụdị spinel (MgA12O4) magnet na-adịgide adịgide, nke bụ ihe atụ nke ferrite nke a na-ejikarị eme ihe taa. nke SrO ma ọ bụ Bao na Fe2O3 dị ka akụrụngwa site na usoro seramiiki (tupu ọkụ, ịkụpịa, ịkụcha, ịpị, sintering na egweri). Ọ nwere njirimara nke loop hysteresis sara mbara, ike mmanye dị elu na ịdị elu dị elu. Ọ bụ ụdị ihe na-arụ ọrụ nke nwere ike idowe magnetism mgbe niile ozugbo magnetized. Njupụta ya bụ 4.8g/cm3. Dị ka usoro mmepụta dị iche iche si dị, ferrite magnet nwere ike kewaa ụzọ abụọ: sintering na bonding. Enwere ike kewaa Sintering n'ime ịpị akọrọ na ịpị mmiri mmiri, na njikọ nwere ike kewaa extrusion, mkpakọ na ịkpụzi injection. Ihe ndọta dị nro, na-agbanwe na gbagọrọ agbagọ nke ejiri ferrite ntụ ntụ na roba sịntetik mee ka a na-akpọkwa magnet roba. Dị ka ma a na-etinye oghere magnetik mpụga ma ọ bụ na etinyeghị ya, enwere ike kewaa ya na magnet na-adịgide adịgide isotropic na magnet na-adịgide adịgide anisotropic.
Tulee ya na ihe ndọta ndị ọzọ
Uru: Ọnụ ala dị ala, nnukwu isi iyi nke akụrụngwa, oke okpomọkụ na-eguzogide (ruo 250 ℃) na nguzogide corrosion.
Mwepu: E jiri ya tụnyere ngwaahịa NdFeB, nkwụghachi ya dị obere. Tụkwasị na nke ahụ, n'ihi usoro dị nro na nke na-adịghị ike nke ihe dị ala ya dị ala, ọtụtụ usoro nhazi na-ejedebe site na ya, dị ka ịkụ ọkpọ, igwu ala, wdg, ọtụtụ n'ime ọdịdị ngwaahịa ya nwere ike ịpịa naanị site na ebu, ngwaahịa ahụ. nnabata ziri ezi adịghị mma, yana ọnụ ahịa ebu dị elu.
Mkpuchi: N'ihi nguzogide corrosion ya dị mma, ọ dịghị mkpa mkpuchi mkpuchi.
Samarium cobalt
Samarium cobalt magnet bụ ụdị magnetik ụwa na-adịghị ahụkebe. Ọ bụ ụdị ngwá ọrụ magnetik mere nke samarium, cobalt na ihe ndị ọzọ na-adịghị ahụkebe nke ụwa site na nha, na-agbaze n'ime alloy, ịpịpịa, ịpị na sintering. Ọ nwere ngwaahịa ike magnetik dị elu yana ọnụọgụ okpomọkụ dị oke ala. Okpomọkụ kachasị arụ ọrụ nwere ike iru 350 ℃, na okpomọkụ na-adịghị mma bụ enweghị oke. Mgbe arụ ọrụ okpomọkụ dị n'elu 180 ℃, ya kacha magnetik ike ngwaahịa (BHmax) na coercivity (co The okpomọkụ kwụsie ike na chemical kwụsie ike dị elu karịa ndị nke NdFeB.
Alnico
Al Ni Co bụ alloy mejupụtara aluminom, nickel, cobalt, ígwè na ihe ndị ọzọ na-achọpụta ọla. Ọ nwere nnukwu remanence, obere coercivity, ezigbo nguzogide corrosion, ọnụ ọgụgụ dị ala, okpomọkụ dị elu, nguzogide iru mmiri, nkwụsi ike siri ike, adịghị mfe oxidize na ezigbo nkwụsi ike na-arụ ọrụ. A na-emepụta Sintered al Ni Co site na metallurgy ntụ ntụ. A na-ejikarị ya na akụkụ ụgbọ ala, ngwá ọrụ, moto, electroacoustic, nkwurịta okwu, magnetoelectric mgba ọkụ, ihe mmetụta, nkuzi na ikuku.
Igwe Igwe Ọdụdọ roba na-agbanwe agbanwe
Ihe ndọta na-agbanwe agbanwe dị nnọọ ka ihe ndọta a kpụrụ akpụ akpụ ma a na-emepụta ya n'ibe dị larịị na mpempe akwụkwọ. Ihe ndọta ndị a dị ala na ike ndọta ma na-agbanwe nke ukwuu dabere na ihe eji eme ihe n'ime ogige nwere ntụ ntụ magnetik. A na-ejikarị vinyl eme ihe n'ụdị magnet dị ka ihe nkedo.
