Iyo yekugadzira maitiro epamusoro-inoshanda NdFeb magineti ayo anogadzirwa neXinfeng Magnet anonyanya kusanganisira: Xinfeng magineti yakakwirira-inoshanda Ndfeb magineti yekugadzira maitiro anonyanya kusanganisira: mbishi pretreatment uye batching, vacuum kunyunguduka uye strip kukanda, hydrogen kupwanya uye kugaya zvakanaka (mhepo chigayo. ) kugadzira poda, kuumba hupfu uye isostatic kudzvanya, isina sintering uye kuchembera kurapwa, magineti machining uye mamwe manomwe maitiro.
(1) Raw material pretreatment uye batching: kuti ubvise iron oxide pamusoro pesimbi yakachena, cheka tsvimbo yesimbi yakachena nehurefu hwe300mm nemuchina wekucheka, wobva waiisa mumushini wekuputisa ngura. , uye wozoitumira kune iyo batching nzvimbo mumadhiramu ekurova.Raw material batching inoitwa mubatching room.Zvinoenderana nekuita, iyo raw material batching reshiyo inoyerwa yoiswa mutangi rezvinhu zvakasvibiswa, yozotumirwa kune vacuum casting virace.
(2) Vacuum casting
① Vacuum casting: mushure mezvose zvisingawanzo simbi zvepasi uye zvisingawanzo simbi zvepasi zviri mucrucible muvacuum casting muvira zvanyungudutswa uye zvaitwa zvachose, iyo alloy inonyungudika inodururwa zvishoma nezvishoma mubhegi repakati rekukanda nekukwevera crucible, uye yakanyungudutswa simbi alloy. mvura inodururwa zvakaenzana kune inotenderera mvura-yakatonhorera roller yemhangura kuburikidza nebhegi repakati.Kudurura tembiricha inodzorwa pakati pe1350 ℃ uye 1450 ℃.Pasi pechiito chehuviri chekukurumidza kutonhora uye kutenderera kwakanyanya (inowanzozivikanwa seyekukurumidza kuseta tambo), iyo alloy fluid yakamisikidzwa muNdFeb alloy flakes nekukora kwe0.25 ~ 0.35mm.
②Kutonhorera: NdFeb alloy flakes inounganidzwa mumvura-yakatonhorera dhisiki pasi pekukanda inotonhora roll yekutonhora kwechipiri.Kurongeka pane dhisiki inotenderera mudziyo inogona kuwedzera kutonhora kweNdFeb alloy sheet, mushure mekumirira alloy sheet tembiricha kutonhora pazasi 60 ℃, simudza iyo mamiriro eiyo micro negative pressure muvacuum induction vira, uchishandisa air displacement yekudurura argon, wozovhura ovheni. gonhi rekugadzira rinogadzira iyo alloy sheet mudhiramu resimbi isina tsvina kana mune inotevera nzira yekushanda.
③Kuongororwa kwemhando yechigadzirwa: chigadzirwa chega chega chinofanirwa kutorwa kuti chiongororwe kunaka kuti chionekwe kana chimiro chechigadzirwa nekuita zvichisangana nezvinodiwa zvemhando yepamusoro, zvigadzirwa zvine hunyanzvi mukuita kunotevera, zvigadzirwa zvisina kukodzera kudzoka mukunatswa.
(3) Hydrogen kupwanya: hydrogen kupwanya hupfu ndiko kushandiswa kweNdFeb hydrogen kunyura pamberi uye mushure mevhoriyamu ichachinja, kuitira kuti ibudise kushushikana kukuru mukati mekutsemuka kwayo kwemukati kwechinhu, kuti iwane iyo yekupwanya.Hydrogen kupwanya maitiro anogona kuvandudza kushanda kwechigayo chemhepo, iyo inodarika kaviri yemaitiro echinyakare.
(4) Mhepo inokuya poda: iyo alloy poda mushure mekupwanya kwehydrogen inotakurwa mumhepo mill, pasi pechiito che-high-pressure nitrogen pakumanikidzwa kwe0.7 ~ 0.8MPa, kudhumhana pakati pehupfu uye kuwedzera kunatswa, uye kuburikidza nechikamu. system yekuwana saizi ye3 ~ 5μm yemagineti poda.
(5) Kuumba: mushure mekunge hupfu hwasanganiswa zvakaenzana, 1.5t ~ 2.5T DC magnetic field inoshandiswa pasi pe nitrogen kuchengetedza mamiriro ekuita kuti magnetic powder yakarongeka yakarongeka nenzira yekunze kwemagineti, uye kumanikidzwa kwe0.1-1t / cm 2 inoshandiswa kudzvanya hupfu.Mushure mekudzvanya, reverse magineti inosvika 0.2 ~ 0.5 T ichiri kudikanwa kuti ibvise magineti billet.
(6) Sintering: iyo poda billet inoiswa zvakaenzana mutireyi yemidziyo, uye yobva yanyudzwa muchoto chevacuum sintering (munzvimbo yevacuum, tembiricha inochengetwa pa1000 ~ 1100 ℃), kuti uwane huwandu hwehukama hweasingasviki. 90% ye sintered billet.
(7) Machining: zvinoenderana nezvinodiwa nemutengi, kushandisa kugaya, kuchera, kucheka waya uye dzimwe nzira dzekugadzira michina, iyo NdFeb isina chinhu inogadziriswa kuita imwe chimiro uye saizi (square, denderedzwa, mhete uye mamwe maumbirwo) emagineti.
Nguva yekutumira: Zvita-13-2020