Kawm txog alkaline qis kub electroless npib tsib xee plating ntawm cov ntaub ntawv ferrous

Electroless plating yog txheej txheem kev kho tshuaj uas cov hlau ions hauv cov tshuaj raug txo los ntawm tus neeg saib xyuas kom tsim nyog thiab tso rau ntawm qhov chaw ntawm catalytically activated plated. Rau cov txheej txheem electroless npib tsib xee plating nyob rau hauv alkaline tej yam kev mob, nws muaj peev xwm qhia tau los ntawm ob tug nram qab no cov tshuaj tiv thaiv qauv
[1] : [NiL]2++2e- → Ni+L
2Ni+7H2PO2-+H2O - 7e-→ 5H2PO3-+2Ni-P+2H2↑+2H+ Nyob rau xyoo tas los no, electroless plating li ib qho kev kho mob saum npoo av tau txais kev pom zoo hauv kev lag luam. Kev txhim kho txuas ntxiv ntawm electroless npib tsib xee plating yog vim qhov tseeb tias cov cuab yeej siv tau zoo, txheej txheej muaj lub cev, tshuaj lom neeg thiab khoom siv, thiab cov txheej txheem cov cuab yeej yog yooj yim, yooj yim los tswj thiab tus tswv, txheej txheej yog sib xws thiab du, thiab tsim nyog rau cov khoom sib xws, uas tsis muaj nyob rau hauv tshuab electroplating. Tam sim no, feem ntau cov txheej txheem electroless npib tsib xee plating feem ntau ua haujlwm ntawm qhov kub ntawm 85-95 degree, cov tshuaj plating evaporates sai, lub zog poob yog loj, qhov kev siv ntawm sodium hypophosphate tsawg, pH tus nqi hloov sai, thiab cov txheej txheem plating tswj yog qhov nyuaj. Ntawm qhov tod tes, plating ntawm qee cov ntaub ntawv (xws li plastics, thiab lwm yam) ntawm qhov kub thiab txias yuav ua rau deformation thiab hloov kho ntawm matrix, uas muaj kev thov ntxiv ntawm electroless plating. Yog li ntawd, txoj kev tshawb fawb ntawm cov txheej txheem kub electroless nickel plating yog ib qho tseem ceeb ntawm kev tshawb fawb electroless plating. Nyob rau hauv txoj kev tshawb no, ntau hom nickel plating formulations tau soj ntsuam los ntawm ntau qhov kev ntsuam xyuas, thiab ib tug ceev thiab uniform nickel plating mis raug txiav txim. Lub tshuab pretreatment ntawm cov khoom siv hlau tau raug sim thiab txhim kho, thiab tau txais qee qhov txiaj ntsig. Cov tshuaj lom neeg thiab cov khoom siv ntawm cov txheej txheem kuj tau sim.