Sintered Neodymium hlau nplaum fim loj electrochemical corrosion thiab yog li ntau yam ntawm anti-corrosion technologies tau siv rau cais cov hlau nplaum puag thiab ib puag ncig cov khoom. Magnet puag nws tus kheej yuav tsum muaj zog txaus txawm tias kev kho saum npoo yog qhov tseem ceeb rau Neodymium hlau nplaum. Muaj ob txoj hauv kev los ntsuam xyuas tus nqi corrosion: ib qho yog txoj kev nce qhov hnyav, thiab lwm qhov yog txoj kev poob phaus, ces lub tswv yim ntawm kev poob qis Neodymium hlau nplaum tshwm sim. Qhov tseeb, qhov tseem ceeb ntawm qhov poob qis Neodymium hlau nplaum yog qhov siab corrosion kuj Neodymium hlau nplaum.
Qhov tsis zoo corrosion kuj ntawm Neodymium hlau nplaum yog los ntawm cov laj thawj hauv qab no:
Khoom siv. Sintered Neodymium hlau nplaum muaj ntau theem qauv, thiab theem sib txawv muaj peev xwm sib txawv antioxidant. Nd-nplua nuj theem thiab B-nplua nuj theem yuav oxidized thaum xub thawj, ces tsim intergranular corrosion.
Cov impurities hauv alloy, tshwj xeeb tshaj yog cov tshuaj chloride, yuav ua kom cov txheej txheem oxidation ntawm Neodymium
Cov xwm txheej ua haujlwm.
Lub zog ntawm intergranular corrosion qia los ntawm qhov sib txawv ntawm cov theem tseem ceeb thiab Nd-nplua nuj theem lossis theem B-nplua nuj. Yog li ntawd, txo qis qhov sib txawv ntawm cov theem ciam teb tuaj yeem zam lossis txo qhov kev sib txhuam ntawm intergranular.
Nrog rau qhov tob coercivity mechanism kev tshawb fawb ntawm sintered Neodymium hlau nplaum, dual-alloy thev naus laus zis, dual-theem tseem ceeb thev naus laus zis thiab lis ciam diffusion thev naus laus zis tau qhia rau kev tsim cov txheej txheem ntawm sintered Neodymium hlau nplaum uas tso cai rau cov hlau nplaum manufacturers ntxiv cov theem tshiab thaum lub sij hawm ua hmoov los yog txheej txheem molding, suav nrog sub-alloy, nano-hlau / alloy thiab micron-loj oxide. Muaj kev sib raug zoo ntawm cov hlau nplaum Neodymium high-coercivity thiab poob qis Neodymium hlau nplaum uas lawv ob leeg tau hais txog kev txhim kho microstructure, los yog optimize kev sib raug zoo ntawm lub ntsiab theem thiab impurity theem.
