Xinfeng maginito mkulu ntchito NdFeb maginito kupanga ndondomeko

The ndondomeko kupanga mkulu-ntchito NdFeb maginito amene opangidwa ndi Xinfeng maginito makamaka zikuphatikizapo: Xinfeng maginito mkulu-ntchito Ndfeb maginito kupanga ndondomeko makamaka zikuphatikizapo: zopangira pretreatment ndi batching, zingalowe kusungunuka ndi Mzere kuponyera, hydrogen kuphwanya ndi mphero zabwino (mpweya mphero). ) Kupanga ufa, kupanga ufa ndi kukanikiza kwa isostatic, chithandizo chopanda kanthu ndi kukalamba, kukonza maginito ndi njira zina zisanu ndi ziwiri.

(1) Yaiwisi pretreatment ndi batching: kuti achotse okusayidi chitsulo pamwamba chitsulo koyera, kudula koyera chitsulo ndodo ndi kutalika 300mm ndi makina odulira, ndiyeno kuika mu kuwombera kuphulika makina kuchotsa dzimbiri. , ndiyeno tumizani ku malo a batching mu migolo kuti batching.batching yaiwisi ikuchitika mu batching chipinda.Malinga ndi magwiridwe antchito, chiŵerengero cha batching cha zopangira chimayesedwa ndikuyikidwa mu thanki yazinthu zopangira, kenako chimatumizidwa ku ng'anjo yoponyera vacuum.

(2) Kutaya madzi
①Kuponyera vacuum: Pambuyo zitsulo zonse zapadziko lapansi ndi zitsulo zomwe sizili zachilendo mu ng'anjo yamoto yosungunuka zimasungunuka ndikuchitapo kanthu, alloy amasungunuka pang'onopang'ono kutsanulira m'thumba lapakati poponyera crucible, ndi chitsulo chosungunuka. madzi ndi wogawana anatsanulira kwa kasinthasintha madzi utakhazikika mkuwa wodzigudubuza pakati thumba.Kuthira kutentha kumayendetsedwa pakati pa 1350 ℃ ndi 1450 ℃.Pansi pa zochita zapawiri kuzirala mofulumira ndi liwiro kasinthasintha (yomwe imadziwika kuti mwamsanga kukhazikitsa Mzere), ndi aloyi madzi mofulumira condensed mu NdFeb aloyi flakes ndi makulidwe a 0.25 ~ 0.35mm.
②Kuziziritsa: NdFeb aloyi flakes amasonkhanitsidwa mu litakhazikika madzi utakhazikika pansi pa kuponyera ozizira mpukutu kuzirala yachiwiri.Kamangidwe pa litayamba kasinthasintha chipangizo akhoza kuonjezera kuzirala kwa NdFeb aloyi pepala, pambuyo kuyembekezera aloyi pepala kutentha kuzirala m'munsimu 60 ℃, kukweza mkhalidwe yaying'ono zoipa kuthamanga mu zingalowe kupatsidwa mwayi ng'anjo, ntchito mpweya kusamutsidwa kukhetsa argon, ndiye kutsegula ng'anjo. chitseko chochita kupanga choyika pepala la aloyi mu mbiya yapadera yachitsulo chosapanga dzimbiri kapena ntchito yotsatira.
③Kuwunika kwamtundu wazinthu: ng'anjo iliyonse iyenera kutsatiridwa kuti iwunikenso bwino kuti zitsimikizire ngati kapangidwe kake ndi magwiridwe antchito zimakwaniritsa zofunikira, zoyenereradi kulowa munjira ina, zopangira zosayenerera kubwereranso pakuyenga.

(3) haidrojeni kuphwanya: wa hydrogen kuphwanya ufa ndi ntchito NdFeb wa hydrogen mayamwidwe pamaso ndi pambuyo buku lidzasintha, kuti apange kupsyinjika kwakukulu mu akulimbana ake mkati a zinthu, kukwaniritsa kuphwanya kwenikweni.Njira yophwanyira haidrojeni imatha kupititsa patsogolo mphamvu ya mphero ya mpweya, yomwe imakhala yoposa kawiri pazochitika zachikhalidwe.

(4) Mpweya wopera mpweya: ufa wa alloy pambuyo pophwanya wa hydrogen umakwezedwa mumphero ya mpweya, pansi pa mphamvu ya nayitrogeni yothamanga kwambiri pa 0.7 ~ 0.8MPa, kugundana pakati pa ufa ndi kuyeretsedwa, komanso kupyolera mumagulu. dongosolo kupeza tinthu kukula kwa 3 ~ 5μm maginito ufa.

(5) Kupanga: ufa utatha kusakanikirana, 1.5t ~ 2.5T DC maginito amagwiritsidwa ntchito pansi pa chitetezo cha nayitrogeni kuti apange maginito ufa mwadongosolo motsatira njira ya kunja kwa maginito, ndi kupanikizika kwa 0.1-1t / cm 2 amagwiritsidwa ntchito kukanikiza ufa.Pambuyo kukanikiza, mphamvu ya maginito yosinthira pafupifupi 0.2 ~ 0.5 T imafunikabe kuti ichotse maginito billet.

(6) Sintering: ufa billet anayikidwa wogawana mu thireyi zakuthupi, ndiyeno sintered mu zingalowe sintering ng'anjo (mu zingalowe chilengedwe, kutentha anakhalabe pa 1000 ~ 1100 ℃), kupeza kachulukidwe wachibale wa osachepera osachepera. 90% ya sintered billet.

(7) Machining: malinga ndi zofuna za kasitomala, ntchito akupera, kubowola, kudula waya ndi njira makina processing, ndi NdFeb akusowekapo ndi kukonzedwa mu mawonekedwe enaake ndi kukula (square, kuzungulira, mphete ndi akalumikidzidwa ena) maginito.