Neodymium Iron Boron Magnets suna ɗaya daga cikin mafi ƙarfin maganadisu na dindindin na kasuwanci da ake samu a yau. Waɗannan ƙaƙƙarfan maganadisu na duniya na iya zama ƙarfi har sau 10 fiye da mafi ƙarfin maganadisu yumbu. NdFeB maganadiso yawanci ana samar da su ta amfani da ɗaya daga cikin nau'ikan hanyoyin gabaɗaya guda biyu, abubuwan haɗin gwiwa (matsi, allura, extrusion ko gyare-gyaren kalanda), da maɗauran maganadisu (ƙarfe foda, tsari na PM). NdFeB maganadiso ana yawan amfani da su a cikin samfuran da ke buƙatar ƙaƙƙarfan maganadisu masu ƙarfi kamar faifan diski don kwamfutoci, injinan lantarki a cikin kayan aiki mara igiya, da maɗaurai. Don aikace-aikacen ɓangaren likitanci sababbin amfani na waɗannan maɗaukaki masu ƙarfi suna fitowa. Misali, kewayawa na catheter, inda za'a iya haɗa maganadisu cikin ƙarshen taron catheter kuma ana sarrafa su ta hanyar tsarin maganadisu na waje don iyawa da karkatar da iyawa.
Sauran abubuwan amfani da su a fannin likitanci sun haɗa da ƙaddamar da na'urorin daukar hoto na maganadisu na maganadisu na buɗe ido (MRI) waɗanda ake amfani da su don taswira da hoton jikin mutum, a matsayin madadin maɗaukakiyar maganadisu waɗanda galibi ke amfani da coils na waya don samar da filin maganadisu. Ƙarin amfani a cikin filin na'urar likitanci sun haɗa da, dogon lokaci da gajeren lokaci, da ƙananan na'urori masu cin zarafi. Wasu ƙananan aikace-aikacen ɓarna na neodymium baƙin ƙarfe boron maganadiso su ne endoscopic majalisai don ɗimbin hanyoyin da suka haɗa da; gastroesophageal, gastrointestinal, kwarangwal, tsoka da haɗin gwiwa, zuciya da jijiyoyin jini, da jijiyoyi.
Ferrite maganadiso, neodymium maganadiso ko ma maganadisu sansanonin ana amfani da iri-iri na aikace-aikace a fasaha, a masana'antu da kuma kiwon lafiya dalilai. Akwai buƙatar samar da maganadisu tare da kariya ta ƙasa daga lalata, "shafi" don maganadiso. Plating neodymium maganadiso wani muhimmin tsari ne don kare maganadisu daga lalata. Substrate NdFeB (Neodymium, Iron, Boron) zai oxidize da sauri ba tare da Layer na kariya ba. A ƙasa akwai jerin sutura/shafi da gashin fuka-fukan su don tunani.
| Maganin Sama | ||||||
| Tufafi | Tufafi Kauri (μm) | Launi | Yanayin Aiki (℃) | PCT (h) | SST (h) | Siffofin |
| Blue-White Zinc | 5-20 | Blue-Fara | ≤160 | - | ≥48 | Anodic shafi |
| Launi Zinc | 5-20 | Launin bakan gizo | ≤160 | - | ≥72 | Anodic shafi |
| Ni | 10-20 | Azurfa | ≤390 | ≥96 | ≥12 | High zafin jiki juriya |
| Ni+Cu+Ni | 10-30 | Azurfa | ≤390 | ≥96 | ≥48 | High zafin jiki juriya |
| Vacuum aluminum | 5-25 | Azurfa | ≤390 | ≥96 | ≥96 | Kyakkyawan haɗuwa, juriya mai zafi |
| Electrophoretic epoxy | 15-25 | Baki | ≤200 | - | ≥360 | Insulation, mai kyau daidaito na kauri |
| Ni+Cu+Epoxy | 20-40 | Baki | ≤200 | ≥480 | ≥720 | Insulation, mai kyau daidaito na kauri |
| Aluminium+Epoxy | 20-40 | Baki | ≤200 | ≥480 | ≥504 | Insulation, juriya mai ƙarfi ga fesa gishiri |
| Epoxy spray | 10-30 | Baki, Grey | ≤200 | ≥192 | ≥504 | Insulation, high zafin jiki juriya |
| Phosphating | - | - | ≤250 | - | ≥0.5 | Maras tsada |
| Abin sha'awa | - | - | ≤250 | - | ≥0.5 | Low cost, muhalli abokantaka |
| Tuntuɓi masananmu don sauran sutura! | ||||||
Rufin NiCuNi: Rufin nickel ya ƙunshi yadudduka uku, nickel-Copper-nickel. Irin wannan suturar ita ce mafi yawan amfani da ita kuma tana ba da kariya daga lalatawar maganadisu a cikin yanayi na waje. Farashin sarrafawa yayi ƙasa. Matsakaicin zafin aiki yana kusan 220-240ºC (dangane da matsakaicin zafin aiki na maganadisu). Ana amfani da irin wannan nau'in sutura a cikin injuna, janareta, na'urorin likitanci, na'urori masu auna firikwensin, aikace-aikacen mota, riƙewa, matakan jigilar fim na bakin ciki da famfo.
Black nickel: Abubuwan da ke cikin wannan sutura suna kama da na nickel, tare da bambancin cewa an samar da ƙarin tsari, taron nickel na baki. Abubuwan da ke kama da na nickel plating na al'ada; tare da musamman cewa ana amfani da wannan sutura a cikin aikace-aikacen da ke buƙatar cewa yanayin gani na yanki ba shi da haske.
Zinariya: Ana amfani da irin wannan nau'in sutura sau da yawa a fannin likitanci kuma ya dace da amfani da shi wajen hulɗa da jikin mutum. Akwai izini daga FDA (Gudanar da Abinci da Magunguna). A ƙarƙashin rufin zinariya akwai ƙaramin Layer na Ni-Cu-Ni. Matsakaicin zafin jiki na aiki kuma shine kusan 200 ° C. Baya ga filin magani, ana amfani da platin zinare don kayan ado da kayan ado.
Zinc: Idan matsakaicin zafin aiki na aiki bai wuce 120 ° C ba, irin wannan suturar ya isa. Farashin yana da ƙasa kuma ana kiyaye magnet daga lalata a sararin samaniya. Ana iya manne shi da karfe, ko da yake dole ne a yi amfani da manne na musamman. Rufin zinc ya dace da cewa shingen kariya don maganadisu sun yi ƙasa da ƙarancin yanayin aiki.
Parylene: FDA kuma ta amince da wannan sutura. Saboda haka, ana amfani da su don aikace-aikacen likita a cikin jikin mutum. Matsakaicin zafin jiki na aiki shine kusan 150 ° C. Tsarin kwayoyin halitta ya ƙunshi mahadi na hydrocarbon mai siffar zobe wanda ya ƙunshi H, Cl da F. Dangane da tsarin kwayoyin halitta, ana rarrabe nau'ikan nau'ikan kamar: Parylene N, Parylene C, Parylene D da Parylene. HT.
Epoxy: Rubutun da ke ba da kyakkyawan shinge ga gishiri da ruwa. Akwai mannewa mai kyau sosai ga ƙarfe, idan magnet ɗin yana manne tare da manne na musamman wanda ya dace da maganadisu. Matsakaicin yawan zafin jiki na aiki shine kusan 150 ° C. Abubuwan rufewar epoxy yawanci baƙar fata ne, amma kuma suna iya zama fari. Ana iya samun aikace-aikacen a cikin sashin ruwa, injuna, na'urori masu auna sigina, kayan masarufi da bangaren kera motoci.
Magnets da aka yi musu allura a cikin filastik: ko kuma ana kiran su da yawa. Babban halayensa shine kyakkyawan kariyar maganadisu daga karyewa, tasiri da lalata. Tsarin kariya yana ba da kariya daga ruwa da gishiri. Matsakaicin zafin aiki ya dogara da filastik da aka yi amfani da shi (acrylonitrile-butadiene-styrene).
Kafa PTFE (Teflon): Kamar allurar / filastik shafi kuma yana ba da kyakkyawan kariyar maganadisu daga fashewa, tasiri da lalata. Ana kiyaye maganadisu daga danshi, ruwa da gishiri. Matsakaicin zafin jiki na aiki yana kusa da 250 ° C. Ana amfani da wannan shafi a cikin masana'antun likitanci da kuma masana'antar abinci.
Rubber: Rubutun roba yana kare daidai daga karyewa da tasiri kuma yana rage lalata. Kayan roba yana samar da juriya mai kyau sosai akan saman karfe. Matsakaicin zafin jiki na aiki yana kusa da 80-100 ° C. Gilashin tukunya tare da rufin roba sune mafi bayyane kuma samfuran da aka yi amfani da su.
Muna ba abokan cinikinmu shawarwarin ƙwararru da mafita kan yadda ake kare magnetin ku da samun mafi kyawun aikace-aikacen maganadisu. Tuntube mu kuma za mu yi farin cikin amsa tambayar ku.
