NdFeB hlau nplaum yog ib hom khoom siv hlau nplaum muaj zog, uas feem ntau siv los ua ntau yam khoom siv hluav taws xob, tshuab, twj paj nruag thiab lwm yam. Txawm li cas los xij, nyob rau hauv tus txheej txheem ntawm kev siv, cov hlau nplaum nto yog yooj yim kis nrog plua plav, av thiab lwm yam impurities, uas cuam tshuam rau nws cov nyhuv siv, yog li ntawd, nws yuav tsum tau ntxuav.
Thaum ntxuav NdFeB hlau nplaum, ua ntej ntawm tag nrho cov, koj yuav tsum tau npaj ib co tshuaj ntxuav, koj siv tau tshwj xeeb hlau nplaum nqus tsev vacuum los yog ib co tshuaj ntxuav, xws li diluted cawv los yog xab npum dej. Tom qab ntawd, siv cov ntaub mos mos los yog daim txhuam cev los siv cov tshuaj ntxuav tes ntawm cov hlau nplaum thiab so nws maj mam, ceev faj tsis txhob siv cov txhuam hlau los yog cov khoom tawv los so nws hnyav kom tsis txhob khawb cov hlau nplaum.
Tom qab dej raug kho los ntawm NdFeB siab zog magnetization, cov dej sub-bonds yog deformed nyob rau hauv lub kaum sab xis thiab ntev nyob rau tib lub sij hawm, lub hydrogen daim ntawv cog lus lub kaum sab xis yog txo los ntawm 105 degrees mus txog 103 degrees, thiaj li hais tias lub cev thiab tshuaj muaj pes tsawg leeg ntawm dej. hloov hauv series, cov dej num thiab solubility ntawm NdFeB hlau nplaum dej yog zoo heev, calcium carbonate nyob rau hauv dej yog decomposed los ua kom txo qis calcium bicarbonate thaum lub sij hawm boiling txheej txheem, NdFeB hlau nplaum tsis yooj yim rau sau rau ntawm phab ntsa, thiab nws yog heev yooj yim. yuav raug muab tshem tawm los ntawm dej. Nyob rau hauv tas li ntawd, lub degree ntawm polymerization ntawm dej yog nce, cov yaj cov khoom ua finer hais, cov hais yog refined, qhov kev ncua deb ntawm ob ions yog me me, tsis yooj yim rau condense rau ntawm phab ntsa, thiaj li mus cuag cov nyhuv ntawm descaling. .