Inqubo yokukhiqiza ephezulu ukusebenza NdFeb uzibuthe okuyinto ekhiqizwa Xinfeng Magnet ikakhulukazi kuhlanganisa: Xinfeng uzibuthe high-ukusebenza Ndfeb uzibuthe inqubo yokukhiqiza ikakhulukazi kuhlanganisa: impahla eluhlaza pretreatment kanye batching, vacuum ukuncibilika kanye strip Casting, hydrogen ukuchotshozwa nokugaya emihle (isigayo air ) ukwenziwa kwempushana, ukwenza impushana kanye nokucindezela kwe-isostatic, ukuthungatha okungenalutho nokwelashwa kokuguga, ukwenziwa kwemishini kazibuthe nezinye izinqubo eziyisikhombisa.
(1) Ukulungiswa kwempahla eluhlaza kanye nokuhlanganisa: ukuze ukhiphe i-iron oxide ebusweni bensimbi ehlanzekile, sika induku yensimbi ehlanzekile ngobude obungama-300mm ngomshini wokusika, bese uyifaka emshinini wokudubula ukuze kukhishwe ukugqwala. , bese uyithumela endaweni yokuxubha emiphongolweni yokuxubha.I-batching yempahla eluhlaza yenziwa ekamelweni lokuhlanganisa.Ngokusho kokusebenza, isilinganiso se-batching sempahla eluhlaza siyakalwa bese sifakwa ethangini lempahla eluhlaza, bese sithunyelwa esithandweni somlilo se-vacuum casting.
(2) Ukukhipha i-vacuum
① I-vacuum casting: ngemuva kokuthi zonke izinsimbi zomhlaba ezingavamile nezinsimbi zomhlaba ezingandile ku-crucible esithandweni somlilo se-vacuum ziyancibilika futhi ziphendule ngokuphelele, i-alloy encibilika ithululelwa kancane kancane esikhwameni sokuphonsa esiphakathi ngokutshekisa i-crucible, kanye ne-alloy metal encibilikisiwe. i-liquid ithululelwa ngokulinganayo ku-roller yethusi ejikelezayo epholile ngamanzi ngesikhwama esiphakathi.Izinga lokushisa lokuthulula lilawulwa phakathi kuka-1350 ℃ no-1450 ℃.Ngaphansi kwesenzo esikabili sokupholisa okusheshayo nokujikeleza ngesivinini esikhulu (okuvame ukwaziwa ngokuthi umucu wokusetha okusheshayo), uketshezi lwealloy lujiya ngokushesha lube ama-NdFeb alloy flakes anogqinsi luka-0.25 ~ 0.35mm.
②Ukupholisa: Ama-NdFeb alloy flakes aqoqwa kudiski epholiswe ngamanzi ngaphansi komqulu obandayo wokupholisa okwesibili.Ukuhlelwa kudivayisi ejikelezayo yediski kungakhuphula izinga lokupholisa leshidi lengxubevange ye-NdFeb, ngemuva kokulinda ukupholisa kweshidi le-alloy elingaphansi kuka-60 ℃, kuphakamise isimo sengcindezi encane engalungile esithandweni sokufakelwa kwe-vacuum, kusetshenziswa ukuthuthwa komoya kwe-argon, bese uvula ihhavini. umnyango wokwenziwa ubeka ishidi lengxubevange emgqonyeni okhethekile wensimbi engagqwali noma inqubo yokusebenza elandelayo.
③Ukuhlolwa kwekhwalithi yomkhiqizo: imikhiqizo ngayinye yesithando somlilo kufanele ithathwe isampula ukuze ihlolwe ikhwalithi ukuze kuqinisekiswe ukuthi ukwakheka komkhiqizo nokusebenza kuyahlangabezana yini nezimfuneko zekhwalithi, imikhiqizo efanelekayo ibe yinqubo elandelayo, imikhiqizo engafanelekile ibuyele ekucwengisweni.
(3) Ukuchotshozwa kwe-Hydrogen: i-hydrogen crushing powder ukusetshenziswa kwe-NdFeb hydrogen ukumuncwa ngaphambi nangemva kwevolumu kuzoshintsha, ukuze kukhiqizwe ukucindezeleka okukhulu ekuqhekekeni kwayo kwangaphakathi kwezinto, ukufeza umphumela wokuchoboza.Inqubo yokuchotshozwa kwe-hydrogen ingathuthukisa ukusebenza kahle kwesigayo somoya, okuyizikhathi ezingaphezu kwezimbili zenqubo evamile.
4 uhlelo lokuthola usayizi wezinhlayiyana we-3 ~ 5μm powder magnetic.
(5) Ukubumba: ngemva kokuba impushana ixubene ngokulinganayo, i-1.5t ~ 2.5T DC insimu kazibuthe isetshenziswa ngaphansi komkhathi wokuvikelwa kwe-nitrogen ukwenza impushana kazibuthe ihleleke ngokuhambisana nendawo yangaphandle kazibuthe, kanye nengcindezi engu-0.1-1t / cm 2 isetshenziselwa ukucindezela impushana.Ngemva kokucindezela, inkambu kazibuthe ehlehlayo cishe engu-0.2 ~ 0.5 T isadingeka ukuze kukhishwe uzibuthe ku-billet.
(6) I-Sintering: i-powder billet ibekwe ngokulinganayo kuthreyi yezinto ezibonakalayo, bese ifakwa esithandweni se-vacuum sintering (endaweni ye-vacuum, izinga lokushisa ligcinwa ku-1000 ~ 1100 ℃), ukuthola ukuminyana kwesihlobo esingekho ngaphansi 90% we-billet e-sintered.
(7) Umshini: ngokwezidingo zekhasimende, kusetshenziswa ukugaya, ukubhola, ukusika ucingo nezinye izindlela zokucubungula ngomshini, i-NdFeb engenalutho icutshungulwa ibe yisimo nosayizi othize (isikwele, nxazonke, indandatho nezinye izimo) zomabuthe.
Isikhathi sokuthumela: Dec-13-2020