Nyob ntawm cov txheej txheem tsim khoom, NdFeB hlau nplaum feem ntau tau muab faib ua peb hom: Sintered NdFeB, bonded NdFeB, thiab kub- nias NdFeB.
Bonded NdFeB yog molded ncaj qha los ntawm NdFeB mus tas li hlau nplaum hmoov tov nrog cov ntaub ntawv xws li roj hmab thiab yas. Nws nta qhov tseeb qhov tseeb, zoo morphological kev ywj pheej, thiab cov neeg kho tshuab siab, tab sis nws cov khoom sib nqus yog qhov qis, thiab nws qhov kev khiav hauj lwm kub kuj qis. Kub- nias NdFeB yog tsim los siv cov txheej txheem kub deformation, muab cov txiaj ntsig zoo xws li siab ceev, kev taw qhia siab, zoo corrosion kuj, thiab siab coercivity. Nws cov khoom sib nqus poob ntawm cov sintered thiab bonded NdFeB, tab sis cov txheej txheem nyuaj, thiab nws qib industrialization tsawg.
Sintered NdFeB yog qhov yooj yim rau corrosion, yuav tsum tau txheej txheej, feem ntau zinc, npib tsib xee, ib puag ncig tus phooj ywg zinc, ib puag ncig tus phooj ywg npib tsib xee, npib tsib xee-tooj liab-nickel, lossis ib puag ncig tus phooj ywg nickel{2}} tooj liab-nickel plating. Sintered NdFeB hlau nplaum yog tam sim no lub zog tshaj plaws, siab tshaj - ntim, thiab feem ntau siv NdFeB hlau nplaum nyob rau hauv kev ua lag luam, nrog ib tug siab tshaj plaws zog khoom (BH) max tshaj 50 MGOe. Lawv cov khoom lag luam suav rau 95% ntawm lub ntiaj teb tsis tshua muaj - ntiaj teb cov hlau nplaum ruaj khov. Sintered NdFeB hlau nplaum feem ntau muab faib ua axially magnetized thiab radially magnetized hom, nyob ntawm seb yuav tsum tau ua hauj lwm nto.
