Cov hlau nplaum sintered feem ntau yog siv cov hlau ntshiab los yog cov hlau nruab nrab los ua cov khoom siv raw, thiab siv cov khoom siv hluav taws xob hluav taws xob induction cua sov ntawm kev tsim cov eddy tam sim no hauv cov khoom siv raw los ntawm alternating magnetic teb. Nyob rau hauv lub tshuab nqus tsev los yog inert gas ib puag ncig, cov khoom raw yog rhuab thiab melted los ntawm nruab nrab-tsawg zaus induction melting, thiab cov yaj yog homogenized los ntawm stirring. Lub melting point ntawm lub ntiaj teb tsis tshua muaj hlau yog nruab nrab ntawm 8 00 ~ 1500 degree, Fe thiab Co yog 1536 degree thiab 1495 degree raws li, thiab ntshiab B yog siab li 2077 degree. Qee qhov kub melting point hlau raws li cov khoom ntxiv, xws li Ti, Cr, Mo lossis Nb, muaj cov ntsiab lus melting ntawm 1600 ~ 3400 degree. Xav txog qhov inhibition ntawm volatilization ntawm lub ntiaj teb tsis tshua muaj cov ntsiab lus, lub melting kub feem ntau yog tswj nyob rau hauv 1000 ~ 1600 degree. Cov ntsiab lus siab melting yog fused los ntawm alloying ntawm lub ntiaj teb tsis tshua muaj hlau molten kua, los yog cov alloys siab melting point ntsiab (feem ntau hlau alloys) ncaj qha siv raws li raw cov ntaub ntawv, xws li B-Fe (melting point ~ 1500 degree) thiab Nb-Fe (melting point ~ 1600 degree) alloys. Txhawm rau kom ntseeg tau tias tsis muaj oxygen ib puag ncig ntawm melting thiab casting, nws yog ib qho tsim nyog yuav tsum nqus lub melting thiab casting rauv lub cev, thiab ua rau cov khoom thiab cov ntaub ntawv raw hauv lub cub tawg tag nrho deflate, lub tshuab nqus tsev feem ntau yog 10-2~{ {15}}, lub siab boost tus nqi ntawm lub cub tawg ua ntej cua sov (sab hauv deflate thiab sab nraud to) kuj yuav tsum tau tswj nyob rau hauv qis qis, xws li lub peev xwm ntawm 1t melting rauv, qhov boost tus nqi yuav tsum qis dua 5 × 10-4~1×{20}} L/s. Lub tshuab nqus tsev smelting tuaj yeem tso tawm cov kua molten, tshem tawm cov impurities thiab cov pa phem uas tsis muaj qhov kub thiab txias, thiab txhim kho cov purity ntawm cov hlau. Txawm li cas los xij, txij li lub vapor siab ntawm cov hlau tsis tshua muaj hauv ntiaj teb tsawg heev (tsawg dua 1Pa), qhov kev poob qis yog qhov tseem ceeb heev, yog li lub cub tawg feem ntau muaj cov roj inert nyob rau hauv cov txheej txheem smelting kom nce lub ambient siab los suppress lub volatilization ntawm tsawg tsawg. ntiaj teb. Nws yooj yim dua los siv siab purity argon. Feem ntau, sau rau qib ntawm 50kPa. Tom qab homogenization ntawm molten alloy, tso pa thiab slagging tiav lawm, casting tuaj yeem nqa tawm. Alloy casting yog txheej txheem tseem ceeb heev, vim hais tias muaj pes tsawg leeg, siv lead ua lub xeev thiab spatial faib ntawm theem yog qhov tseem ceeb rau kev ua haujlwm ntawm sintered hlau nplaum. Alloy ingot tau ntsib cov tuab "cannonball", 20mm tuab "phau ntawv", 5mm "pancake", thiab tam sim no nws tau tsim los tsuas yog 0.3mm thickness ntawm ceev ceev daim ntawv. Ntau qhov kev siv zog tau ua kom tsis txhob muaj kev sib cais ntawm cov khoom sib cais thiab heterogenic theem tsim thiab faib neodymium-nplua nuj theem faib tsim nyog.
