Kuri PCB, nikel ikoreshwa nka substrate igereranya ibyuma byagaciro kandi shingiro. Ububiko bwa PCB butagabanije cyane bwa nikel busanzwe bushyirwamo ibisubizo byahinduwe na Watt nikel hamwe nibisubizo bya sulfamate nikel hamwe nibindi byongera kugabanya imihangayiko. Reka abakora umwuga babigize umwuga bagusesengure nikihe kibazo PCB nikel isahani isanzwe ikunda guhura nayo mugihe uyikoresha?
1. Inzira ya Nickel. Hamwe n'ubushyuhe butandukanye, ubushyuhe bwo kwiyuhagira bukoreshwa nabwo buratandukanye. Mubisubizo bya nikel hamwe nubushyuhe bwo hejuru, nikel isahani ya nikel yabonetse ifite stress nke imbere kandi ihindagurika neza. Ubushyuhe rusange bwo gukora bukomeza kuri dogere 55 ~ 60. Niba ubushyuhe buri hejuru cyane, nikel saline hydrolysis izabaho, bikavamo pinholes mugipfundikizo kandi icyarimwe bigabanya cathode polarisation.
2. Agaciro PH. Agaciro ka PH ya nikel-yashizwemo electrolyte igira uruhare runini kumikorere ya coating hamwe na electrolyte. Mubisanzwe, pH agaciro ka nikel isahani ya electrolyte ya PCB ikomezwa hagati ya 3 na 4. Igisubizo cya plaque ya Nickel hamwe nigiciro kinini cya PH gifite imbaraga zo gukwirakwiza hamwe na cathode ikora neza. Ariko PH ni ndende cyane, kubera ko cathode idahwema guhindura hydrogène mugihe cya electroplating, mugihe irenze 6, bizatera pinholes murwego rwo gushiraho. Nickel isahani yumuti hamwe na PH yo hepfo ifite anode nziza kandi irashobora kongera ibirimo umunyu wa nikel muri electrolyte. Ariko, niba pH iri hasi cyane, ubushyuhe bwubushyuhe bwo kubona icyapa cyiza buzagabanuka. Ongeramo nikel karubone cyangwa nikel yibanze ya karubone byongera agaciro ka PH; kongeramo acide sulfamic cyangwa acide sulfurike bigabanya agaciro ka pH, kandi igenzura ikanahindura agaciro ka PH buri masaha ane mugihe cyakazi.
3. Anode. Isahani isanzwe ya nikel ya PCB ishobora kugaragara kuri ubu yose ikoresha anode zishonga, kandi birasanzwe ko ukoresha ibitebo bya titanium nka anode kumpande ya nikel imbere. Igitebo cya titanium kigomba gushyirwa mumufuka wa anode wakozwe mubikoresho bya polypropilene kugirango wirinde icyondo cya anode kugwa mumasahani, kandi kigomba guhanagurwa buri gihe kandi kigasuzumwa niba ijisho ryoroshye.
4. Kwezwa. Iyo hari umwanda wanduye mubisubizo byisahani, bigomba kuvurwa na karubone ikora. Ariko ubu buryo busanzwe bukuraho igice cyibintu bigabanya ibibazo (inyongera), bigomba kongerwaho.
5. Isesengura. Igisubizo cyo gufata isahani kigomba gukoresha ingingo zingenzi zamabwiriza agenga inzira zerekanwe mugucunga inzira. Gusesengura buri gihe ibigize igisubizo cya plaque hamwe na test ya Hull selile, hanyuma uyobore ishami ribyara umusaruro kugirango uhindure ibipimo byumuti wibisubizo ukurikije ibipimo byabonetse.
6. Kangura. Nikel isahani ni kimwe nubundi buryo bwo gukora amashanyarazi. Intego yo gukurura ni kwihutisha gahunda yo kwimura abantu benshi kugirango bagabanye impinduka ziterwa no kongera imipaka yo hejuru yubucucike bwemewe. Hariho n'ingaruka zingenzi cyane zo gukurura igisubizo, aricyo kugabanya cyangwa gukumira pinholes murwego rwa nikel. Bikunze gukoreshwa umwuka wugarije, ingendo ya cathode hamwe no kuzenguruka ku gahato (uhujwe na karubone ya karubone hamwe na pamba ya kayunguruzo).
7. Ubucucike bwa Cathode. Ubucucike bwa Cathode bugira ingaruka kuri cathode ikora neza, igipimo cyo kubitsa hamwe nubwiza bwa coating. Iyo ukoresheje electrolyte hamwe na PH yo hasi ya plaque ya nikel, mukarere gake gafite ubucucike, cathode ikora neza yiyongera hamwe no kwiyongera kwubu; murwego rwo hejuru rwubucucike, cathode ikora neza irigenga ubwinshi bwubu; mugihe iyo ukoresheje PH yo hejuru Iyo electroplating fluid nikel, isano iri hagati ya cathode ikora neza nubucucike bwubu ntabwo ari ngombwa. Kimwe nandi moko yisahani, ingano ya cathode yubucucike bwatoranijwe kugirango ikorwe nikel nayo igomba guterwa nibigize, ubushyuhe hamwe nuburyo bwo gukurura igisubizo.