Kev siv thev naus laus zis ntawm NdFeB hlau nplaum txheej txheej

Dab tsi yog txheej txheem kev kho rau saum npoo ntawm NdFeB hlau nplaum? NdFeB cov khoom siv hlau nplaum ruaj khov yog cov khoom siv hmoov hlau ua haujlwm zoo heev, uas yog qhov ua rau corrosion. Yog li ntawd, thaum kho nto, tsim nyog pretreatment thiab electroplating txheej txheem yuav tsum tau ua tib zoo xaiv. Ua ntej sintered NdFeB cov khoom siv hlau nplaum ruaj khov yog electroplated, nws yuav tsum dhau los ntawm chamfering, degreasing, pickling, ultrasonic tu thiab lwm yam txheej txheem uas tuaj yeem ua kom ruaj khov thiab ntxuav qhov chaw, thiaj li yuav tau txais cov txheej txheem zoo, tsis tshua muaj porosity thiab ntev corrosion. tsis kam.

Thaum xaiv cov txheej txheem electroplating, nws yog ib qho tsim nyog yuav tsum xav txog tsis yog tsuas yog kev tiv thaiv thiab kev ua haujlwm ntawm cov txheej txheem, tab sis kuj tseem cuam tshuam thiab qib ntawm kev puas tsuaj los ntawm electroplating emissions rau ib puag ncig.

Cov khoom tseem ceeb ntawm NdFeB yog neodymium thiab hlau, uas yooj yim rau xeb. Yog li ntawd, NdFeB yuav tsum tau nto-coated. Surface chemical passivation yog ib qho kev daws teeb meem zoo tshaj plaws tam sim no. Peb muaj cov tshuab epoxy siab heev, uas tuaj yeem ua tau raws li cov tshuaj ntsev ntsev rau 500-1000 teev. NdFeB muaj qhov zoo ntawm cov khoom siv hluav taws xob sib nqus siab heev thiab lub zog quab yuam, nrog rau lub zog siab ceev, kev ua haujlwm siab, thiab cov khoom siv zoo; Qhov tsis zoo yog qhov sib nqus hloov pauv qhov taw tes qis, qhov ntsuas kub tsis zoo, thiab nws yooj yim rau pulverize thiab corrode. Nws yuav tsum raug kho los ntawm kev kho Nws cov tshuaj muaj pes tsawg leeg thiab cov txheej txheem kho saum npoo tuaj yeem txhim kho kom tau raws li qhov yuav tsum tau ua ntawm kev siv tswv yim.

Hauv kev lag luam descaling thiab anti-scaling kev lag luam ntawm NdFeB hlau nplaum, tom qab cov dej tau kho los ntawm high-strength NdFeB magnetization, cov dej molecular bonds deformed nyob rau tib lub sij hawm nyob rau hauv lub firing lub kaum sab xis thiab ntev, thiab lub hydrogen daim ntawv cog lus lub kaum sab xis yog txo los ntawm 105. kub txog 103 degrees. Cov khoom ntawm lub cev thiab tshuaj lom neeg tau dhau los ua ntau yam kev hloov pauv, thiab kev ua haujlwm thiab kev nqus dej ntawm cov dej tau raug txhim kho zoo heev. Calcium carbonate nyob rau hauv dej yog flatly decomposed los ua ib tug kuj muaj zog calcium bicarbonate thaum lub sij hawm ua noj ua haus txheej txheem, uas tsis yog yooj yim mus khaws cia rau ntawm phab ntsa thiab yog yooj yim tshem tawm los ntawm dej. Qhov degree ntawm polymerization ntawm lwm cov dej nce, thiab cov khoom yaj hauv cov khoom ua kom zoo dua. Tom qab cov khoom ua kom zoo, qhov kev ncua deb ntawm ob ions yog me me, thiab nws tsis yooj yim rau agglomerate rau ntawm phab ntsa, thiab tom qab ntawd ua tiav cov nyhuv ntawm descaling.

Lub ntiaj teb tsis tshua muaj lub luag haujlwm feem ntau yog raws li kev ua haujlwm siab NdFeB cov khoom siv hlau nplaum ruaj khov hauv kev lag luam, thiab cov ntaub ntawv zoo NdFeB cov hlau nplaum ruaj khov yog siv rau hauv high-end daim ntawv thov kev lag luam xws li lub zog tshiab thiab kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig, xws li EPS, tshiab zog tsheb, thiab lwm yam.