PaPCB, nickel inoshandiswa se substrate coating yeakakosha uye base masimbi. Panguva imwecheteyo, kune mamwe mabhodhi akadhindwa ane divi rimwe chete, nickel inowanzoshandiswa seyepamusoro. Zvadaro, ini ndichagoverana newe zvikamu zve PCB nickel plating solution

1. Munyu mukuru: nickel sulfamate uye nickel sulfate ndiwo munyu mukuru mukati nickel solution, iyo inonyanya kupa nickel simbi ions inodiwa nickel plating uye zvakare kutamba basa rekuita munyu. Iine yakakwira nickel munyu wemukati, yakakwira cathode ikozvino density inogona kushandiswa, uye kukurumidza kwekuisa inokurumidza. Inowanzoshandiswa kune yakakwirira-kumhanya gobvu nickel plating. Yakaderera nickel munyu yemukati inotungamira kune yakaderera deposition mwero, asi kugona kwekuparadzira kwakanaka kwazvo, uye yakanaka uye inopenya yekristaro coatings inogona kuwanikwa.

2. Buffer: boric acid inoshandiswa sevhavha kuchengetedza pH kukosha kwe nickel plating solution mukati meimwe siyana. Boric acid haina kungoita basa repH buffer, asiwo inogona kuvandudza cathodic polarization, kuitira kuti ivandudze kushanda kwebhati.

3. Anode activator: nickel anode iri nyore kupfuudza panguva yemagetsi. Kuti uve nechokwadi chekuparara kwakajairika kweanode, imwe huwandu hweanode activator inowedzerwa kune plating mhinduro.

4. Kuwedzera: chikamu chikuru chekuwedzera is stress relief agent. Zvinowanzoshandiswa zvinowedzera naphthalene sulfonic acid, p-toluenesulfonamide, saccharin, nezvimwewo.

5. Wetting agent: kuitira kuderedza kana kudzivirira chizvarwa chepinholes, chidimbu chiduku chekunyorova chinofanira kuwedzerwa kune plating solution, yakadai se sodium dodecyl sulfate, sodium diethylhexyl sulfate, sodium octyl sulfate, etc.