Mhedzisiro yehupfu yakagadziridzwa yekuwedzera mune yekugadzira maitiro eNdFeb isina chinhu.
Kuti ugadzire yakakwira-inoshanda sintered NdFebzvachose maginetizvinhu, tinofanira kudzora saizi yekuyerera kwemhepo ichikuya magineti upfu zvimedu, kuitira kuti saizi yemagineti poda zvimedu mu2.5 ~ 5μm inodarika 95%.Xinfeng Magnet yakaona kuti maitiro anogona kuvandudzwa zvakanyanya nekuwedzera yakakosha poda yekugadziridza additives kune airflow milling process.
Powder yakagadziridzwa additives inofanira kuva necomposite function, kureva: (1) anti-oxidation basa;(2) Kuvandudza hupfu fluidity basa;(3) Dzivirira kupisa kwehupfu, kureva kupisa kudzoreredza basa.Kuwanda kwekuwedzera kunenge 0.035% ~ 0.05% (chikamu chikuru) chemagnetic powder, iyo inowanzowedzerwa panguva imwe chete nemagnetic powder panzvimbo yekudyisa mhepo.
Additive is a multi-component organic compound, ine lipophilic groups, kureva hydrocarbon chain, ine mapoka maduku epolar, akadai semapoka e-lipid, kuitira kuti hydrocarbon chain ine hurefu hwakakodzera hweketani.Magnetic powder particles anoramba achidhumhana uye anobata nezvinowedzerwa mumhepo yekukuya, kuitira kuti pamusoro pechimwe nechimwe chimedu chifukidzwe nedhiri rekuwedzera firimu rine ukobvu hunosvika 5 ~ 8nm.Inotamba mabasa anotevera: (1) Kudzivirira zvidimbu zvehupfu kubva pakusangana nemhepo, tamba basa rekurwisa-oxidation;(2) Kunetesa iyo magnetostatic mhedzisiro pakati pehupfu zvimedu, kuderedza kuungana pakati pehupfu zvidimbu, tamba basa rekuparadzira;(3) Wedzera kuyerera uye kufamba kwehupfu zvidimbu uye tamba basa remafuta;(4) Inobatsira kutaridzika kwehupfu hwehupfu mune magnetic field, iyo inogona kuvandudza kutaridzika;Iyo BR inogona kuwedzerwa ne 0.02-0.04 T, uye iyo magineti simba chigadzirwa (BH) m inogona kuwedzerwa zvinoenderana.Zvinofanira kucherechedzwa kuti tembiricha inoshanduka yeiyi yekuwedzera ndeye 350 ℃.Sintering tembiricha inofanirwa kuitirwa pa400-420 ℃ kwenguva yakati rebei, kuitira kuti zvinowedzerwa zvibviswe kubva kune magineti, kuitira kuti zvisaite carburize.
Mamiriro anodiwa ekugadzira emhando yepamusoro sintered NdFeb zvachose magineti.
Kuti uwane kutaridzika kwakanaka kwemagineti, Xinfeng magineti yakasvika pamhedzisiro mushure memakore ekuyedza uye yakabatanidzwa mhinduro pamusika kushandiswa kwevatengi kuti zvinodikanwa kugadzira sintered NdFeb remagineti poda kuzadzisa zvinotevera zvinodiwa kuti zvigadzirwa zvemhando yepamusoro zvigone. kusikwa, uye chete mishonga yemishonga yakanaka, mushonga uchava nani.(1) Saizi yehupfu idiki (3 ~ 4μm), uye saizi yekugovera idiki, ndiko kuti, zvinodiwa zve3 ~ 4μm zvimedu zvinoverengerwa 95%, hazvina asingasviki 1μm kana kupfuura 7μm zvidimbu, iva nechokwadi chokuti zvikamu zvose ndezvekristaro imwe chete.(2) Zvimedu zvehupfu zvikaita denderedzwa kana kuti denderedzwa.(3) Iko kukanganisa kwekristaro yehupfu hupfu hunofanira kunge hushoma sezvinobvira.(4) Pakupwanya, zviri nani kutyora padanho rekristaro, uye kuyedza kuwana pamusoro pechimwe nechimwe chechikamu chine Rich Nd chikamu, chinoisa hwaro hwechikamu chemvura chiri kunyura kumashure uye kudzivirira kuitika kwekirasi ⅱ muganhu wezviyo.(5) Izvo zvisina kuchena uye magasi adsorbed pamusoro pehupfu hupfu hunofanira kunge hushoma sezvinobvira, kunyanya iyo oksijeni yemukati inofanira kunge iri shoma.Naizvozvo, iyo poda yekugadzirira maitiro inofanirwa kuitwa mukuchena kwakanyanya inert gasi kudzivirira kana vacuum mamiriro, kuitira kudzivirira magineti poda kusangana neokisijeni kana mhepo inonyorova.Mamiriro mashanu ari pamusoro apa akakosha pakugadzira emhando yepamusoro sintered NdFeb magineti echigarire, kushaikwa kwechimwe nechimwe hachidiwe, chinotaridzika senge chiri nyore, chaizvo chimwe nechimwe chinogona kuita chakakwana hachisi nyore, Xinfeng magineti akagadzirira kushanda pamwe nevanhu vanobva kwakasiyana siyana gadzira zvigadzirwa zvakakwana, uye edza kupa vatengi mamwe mabasa emhando yepamusoro.
Xinfeng Magnet's nyowani nyowani mukuvandudza kumanikidza kweiyo sintered NdFeb magineti.
Coercivity ndeimwe yeakakosha tekinoroji paramita yeanogara magineti.Kuwedzera kumanikidza kunogona kuwedzera yakakura magineti simba chigadzirwa chemagineti, kunatsiridza demagnetization kuramba kweiyo magineti isingaperi mukushandisa, uye kugadzirisa kugadzikana kwayo.Parizvino, mukugadzirira kweakachena ternary sintered NdFeb magineti echigarire, iyo tekinoroji magineti zvivakwa uye theoretical values, uye remanence BR yakatosvika 96.27% yehukoshi hwayo hwekufungidzira, uye yakakura magineti simba chigadzirwa BH yasvika 91.5% yedzidziso yayo. value.Nekudaro, simba rekumanikidza rasvika chete 12% yehukoshi hwayo hwekufungidzira.Iyo yakakura inogona kuvandudza simba rayo rekumanikidza, kuchine kuwedzera kukuru kwenzvimbo.Xinfeng magineti yanga ichishanda nesimba kune izvi.
Kutanga, kumanikidza kwemagineti kunogona kuvandudzwa nekutsiva Nd nechidimbu Dy uye Tb.Zvakadaro, muzvinhu zvisingawanzo simbi zvepasi, Dy neTb dzinenge dzakaderera mune zvemukati uye dzinodhura, uye Dy neTb zvinogona kungowedzerwa muhuwandu hwekutevera.Chechipiri, kuwedzerwa kwezvimwe zvinhu zvesimbi zvakadai se AL, Nb, Ga, Ti, Zr, Mo, nezvimwewo, kana zvinhu izvi zvapinda mukristaro, microstructure uye maitiro ekugadzirisa zviri pachena kuti anovandudzwa, uye kuwedzera kumanikidzika kwemagnet.Chechitatu, kumanikidza kwemagineti kunogona kuvandudzwa nekuwedzera zvinhu uye kushandisa yakaderera tembiricha sintering kana kaviri alloy nzira kudzikisa avhareji saizi yekristaro.
Tevere, Xinfeng magineti icharamba ichishanda nesimba kuvandudza hombe remagineti simba chigadzirwa cheNdFeb, uye inogara ichipa zvigadzirwa zviri nani kune vatengi.
Nguva yekutumira: Jul-12-2018