Piv nrog cov khoom siv hlau nplaum tas mus li xws li ferrite, neodymium hlau nplaum (NdFeB hlau nplaum) muaj cov khoom sib nqus zoo heev thiab kuj yog cov hlau nplaum uas tsis tshua muaj hauv ntiaj teb. Lawv tau siv dav hauv cov khoom siv hluav taws xob, tshuab fais fab, khoom siv kho mob, cov khoom ua si, ntim khoom, khoom siv kho vajtse, aerospace thiab lwm qhov chaw. Txawm li cas los xij, cov hlau nplaum neodymium (NdFeB hlau nplaum) yog qhov cuam tshuam rau corrosion. Yog li yuav ua li cas kom tsis txhob xeb ntawm neodymium hlau nplaum?
1. Phosphating
Phosphating yog ib txoj kev uas tshuaj thiab electrochemical kev tshwm sim tsim ib tug phosphate tshuaj hloov dua siab tshiab zaj duab xis. Phosphating muaj cov laj thawj hauv qab no:
Tiv thaiv cov khoom siv los ntawm corrosion mus rau ib qho twg.
Siv ua primer ua ntej pleev xim los txhim kho qhov adhesion thiab corrosion kuj ntawm zaj duab xis txheej.
Nws plays lub luag hauj lwm ntawm kev sib txhuam txo thiab lubrication thaum hlau txias ua hauj lwm.
2. Electroplating
Electroplating yog txheej txheem ntawm plating ib txheej nyias ntawm lwm yam hlau los yog alloys ntawm lwm yam hlau los ntawm electrolysis. Cov txheej txheem electron microscopy yog cov txheej txheem ntawm kev siv electrolysis los txuas rau saum npoo ntawm cov hlau lossis lwm cov ntaub ntawv rau cov yeeb yaj kiab hlau, yog li tiv thaiv cov hlau oxidation (xws li corrosion), txhim kho hnav tsis kam, conductivity, reflectivity, corrosion kuj thiab txhim khu kev zoo nkauj. Ntxiv nrog rau cov hlau nplaum kub, ntau lub npib muaj ib txheej txheej electroplated.
3. Electrophoresis
Nyob rau hauv qhov kev txiav txim ntawm ib qho hluav taws xob teb, cov khoom them nqi txav mus rau electrodes nrog cov khoom hluav taws xob sib txawv, uas yog hu ua electrophoresis. Lub tshuab ntawm kev sib cais cov khoom siv hluav taws xob los ntawm qhov sib txawv ntawm qhov sib txawv ntawm cov khoom siv hluav taws xob yog hu ua electrophoresis technology. Electrophoresis yog ib txoj hauv kev siv dav rau sintering rhiab hlau boron thiab Ib qho ntawm kev tiv thaiv corrosion nto kho thev naus laus zis rau cov hlau nplaum neodymium sib txuas. Cov txheej txheej electrophoretic tsis tsuas yog muaj qhov zoo adhesion rau qhov ntxeem tau hlau nplaum, tab sis kuj muaj cov tshuaj tiv thaiv ntsev, kua qaub thiab alkali corrosion.