Sintered NdFeB maganadisu na dindindin, a matsayin ɗaya daga cikin mahimman abubuwa don haɓaka fasahar zamani da ci gaban zamantakewa, ana amfani da su sosai a cikin fagage masu zuwa: rumbun kwamfutarka, hoton maganadisu na maganadisu na nukiliya, motocin lantarki, samar da wutar lantarki, injina na dindindin na masana'antu, na'urorin lantarki na mabukaci. (CD, DVD, wayoyin hannu, audio, kwafi, na'urar daukar hotan takardu, kyamarori na bidiyo, kyamarori, firji, saitin TV, kwandishan, da sauransu) da injin maganadisu, maganadisu levitation fasahar, Magnetic watsa da sauran masana'antu.
A cikin shekaru 30 da suka gabata, masana'antar magnetic ta duniya na dindindin tana haɓaka tun daga shekarar 1985, lokacin da masana'antar ta fara haɓaka masana'antu a Japan, China, Turai da Amurka, kuma kaddarorin maganadisu suna kafa sabbin bayanai tare da haɓaka adadin abubuwan da suka faru. kayan iri da maki. Tare da fadada kasuwa, masana'antun kuma suna karuwa, kuma yawancin abokan ciniki sun shiga cikin wannan rudani, ta yaya za a yi la'akari da cancantar samfurin? Hanyar da ta fi dacewa don yin hukunci: na farko, aikin magnet; na biyu, girman maganadisu; na uku, maganadisu shafi.
Na farko, garantin aikin maganadisu ya fito ne daga sarrafa tsarin samar da albarkatun kasa
1, Bisa ga bukatun da sha'anin Manufacturing high-sa ko tsakiyar-sa ko low-sa sintered NdFeB, da albarkatun kasa abun da ke ciki bisa ga kasa misali saya albarkatun kasa.
2, The ci-gaba samar tsari kai tsaye kayyade yi ingancin da maganadiso. A halin yanzu, fasahohin da suka fi dacewa sune fasahar Scaled Ingot Casting (SC), fasahar Hydrogen Crushing (HD) da fasahar Airflow Mill (JM).
An maye gurbin ƙananan ƙarfin injin shigar da wutar lantarki (10kg, 25kg, 50kg) da manyan iya aiki (100kg, 200kg, 600kg, 800kg) injin induction injin induction, fasahar SC (StripCasting) a hankali ta maye gurbin manyan ingots-0 mafi girma fiye da kauri. 40mm a cikin jagorar sanyaya), HD (Hydrogen Crushing) fasaha da gas kwarara niƙa (JM) maimakon jaw crusher, Disc niƙa, ball niƙa (rigar foda yin), don tabbatar da uniformity na foda, kuma shi ne dace da ruwa lokaci sintering da hatsi tace.
3. A kan daidaita filin maganadisu, kasar Sin ita ce kasa daya tilo a duniya da ta amince da gyare-gyaren latsa mataki biyu, tare da kananan gyare-gyaren tsaye na matsa lamba don daidaitawa da gyare-gyaren gyare-gyaren gyare-gyare a karshen, wanda shine daya daga cikin muhimman siffofi na Sintered na kasar Sin. NdFeB masana'antu.
Abu na biyu, garantin girman maganadisu ya dogara da ƙarfin aiki na masana'anta
Ainihin aikace-aikacen maganadisu na dindindin na NdFeB yana da siffofi daban-daban, kamar zagaye, cylindrical, cylindrical (tare da rami na ciki); murabba'i, murabba'i, murabba'i; tile, fan, trapezoid, polygon da daban-daban siffofi marasa tsari.
Kowane nau'in maganadisu na dindindin yana da girma dabam dabam, kuma tsarin samarwa yana da wahala a kafa shi a cikin tafi ɗaya. The general samar tsari ne: Mr. fitarwa manyan (manyan size) blanks, bayan sintering da tempering jiyya, sa'an nan ta hanyar inji aiki (ciki har da yankan, naushi) da nika, surface plating (shafi) aiki, sa'an nan magnet yi, surface quality da kuma gwajin daidaito na girma, sannan magnetization, marufi da masana'anta.
1, sarrafa injina ya kasu kashi uku: (1) yankan sarrafawa: yankan cylindrical, maganadisu mai siffar murabba'i zuwa zagaye, mai siffar murabba'i, (2) sarrafa siffa: zagayen sarrafawa, murabba'in maganadisu zuwa nau'in fan, mai siffar tayal ko tare da tsagi ko wasu hadaddun sifofi na maganadiso, (3) sarrafa naushi: sarrafa zagaye, maganadisu mai siffa mai murabba'i zuwa silinda ko maganadisu mai siffar murabba'i. Hanyoyin sarrafawa sune: aikin niƙa da slicing, sarrafa EDM da sarrafa Laser.
2, The surface na sintered NdFeB m maganadisu aka gyara kullum na bukatar santsi da kuma wasu daidaici, da kuma surface na maganadisu tsĩrar a blank bukatar surface nika aiki. The na kowa nika hanyoyin for square NdFeB m maganadisu gami ne jirgin nika, biyu karshen nika, ciki nika, external nika, da dai sauransu Cylindrical fiye amfani da coreless nika, biyu karshen nika, da dai sauransu Domin tayal, fan da VCM maganadiso, Multi-tasha nika. ana amfani da shi.
Ƙwararren maganadisu ba wai kawai yana buƙatar saduwa da ƙa'idar aiki ba, har ma da ikon jure juriya yana shafar aikace-aikacen sa kai tsaye. Garanti mai girma kai tsaye ya dogara da ƙarfin sarrafawa na masana'anta. The aiki kayan aiki ne kullum updated tare da tattalin arziki da kuma kasuwa bukatar, da kuma Trend na mafi m kayan aiki da kuma masana'antu aiki da kai ba kawai don saduwa da girma bukatar abokan ciniki ga samfurin daidaito, amma kuma don ceton ma'aikata da kuma kudin, sa shi mafi m a cikin. kasuwa.
Bugu da ƙari, ingancin magnetin plating kai tsaye yana ƙayyade rayuwar aikace-aikacen samfurin
Gwaji, 1cm3 sintered NdFeB maganadisu za a lalata ta hanyar hadawan abu da iskar shaka idan an bar shi a cikin iska a 150 ℃ na 51 kwanaki. A cikin raunin acid bayani mai rauni, yana iya yiwuwa ya lalace. Domin yin NdFeB maganadisu na dindindin, ana buƙatar samun rayuwar sabis na shekaru 20-30.
Dole ne a bi da shi tare da maganin lalata don tsayayya da lalatawar maganadisu ta hanyar watsa labarai masu lalata. A halin yanzu, da sintered NdFeB maganadiso gaba daya mai rufi da karfe plating, electroplating + sinadaran plating, electrophoretic shafi da kuma phosphate jiyya don hana maganadisu daga lalatattu matsakaici.
1, gabaɗaya galvanized, nickel + jan ƙarfe + nickel plating, nickel + jan ƙarfe + sinadarai nickel plating matakai guda uku, sauran buƙatun plating na ƙarfe, ana amfani da su gabaɗaya bayan plating nickel sannan sauran plating na ƙarfe.
2, a cikin wasu yanayi na musamman kuma za su yi amfani da phosphating: (1) a cikin samfuran Magnetic NdFeB saboda juyawa, adana lokaci ya yi tsayi kuma ba a bayyana ba lokacin da hanyar jiyya ta gaba ta gaba, yin amfani da phosphating mai sauƙi da sauƙi; (2) lokacin da maganadisu yana buƙatar haɗin gwiwar manne epoxy, zanen, da dai sauransu, manne, fenti da sauran mannewar kwayoyin halitta na epoxy suna buƙatar kyakkyawan aikin infiltration na substrate. Tsarin phosphating zai iya inganta yanayin ƙarfin maganadisu don kutsawa.
3, electrophoretic shafi ya zama daya daga cikin yadu amfani anti-lalata surface jiyya fasahar. Domin shi ba kawai yana da kyau bonding tare da porous magnet surface, amma kuma yana da lalata juriya ga gishiri fesa, acid, alkali, da dai sauransu, m anti-lalata. Duk da haka, juriya ga zafi da zafi ba shi da kyau idan aka kwatanta da suturar feshi.
Abokan ciniki za su iya zaɓar sutura bisa ga buƙatun aikin samfuran su. Tare da fadada filin aikace-aikacen mota, abokan ciniki suna da buƙatu mafi girma don juriya na lalata na NdFeB. Gwajin HAST (wanda kuma ake kira gwajin PCT) shine don gwada juriya na lalata na sintered NdFeB maganadisu na dindindin a ƙarƙashin yanayin zafi da zafi.
Kuma ta yaya abokin ciniki zai iya yin hukunci ko plating ya cika ka'idodin ko a'a? Dalilin gwajin feshin gishiri shine don yin gwajin rigakafin lalata da sauri a kan sintetan NdFeB maganadiso wanda samansa aka yi masa maganin lalata. A ƙarshen gwajin, ana fitar da samfurin daga ɗakin gwajin, a bushe, a duba shi da idanu ko gilashin ƙararrawa don ganin ko akwai tabo a saman samfurin, girman akwatin wurin ya canza launi.
Lokacin aikawa: Janairu-06-2023
