Kwi-PCB, i-nickel isetyenziswa njenge-substrate yokwambathisa kwiintsimbi ezixabisekileyo kunye nesiseko. Iidiphozithi zenickel eziphantsi koxinzelelo lwe-PCB zihlala zifakwe kwi-Watt nickel plating isisombululo kunye nezinye izisombululo ze-nickel ze-sulfamate ezinezongezo ezinciphisa uxinzelelo. Vumela abavelisi abaqeqeshiweyo bakuhlalulele ukuba zeziphi iingxaki isisombululo se-nickel se-PCB esihlala sidibana nayo xa usisebenzisa?
1. Inkqubo ye-nickel. Ngobushushu obuhlukeneyo, ubushushu bokuhlamba obusetyenziswayo bukwahluka. Kwisisombululo se-nickel plating esinobushushu obuphezulu, umaleko we-nickel plating ofunyenwe unoxinzelelo oluphantsi lwangaphakathi kunye ne-ductility elungileyo. Ubushushu bokusebenza ngokubanzi bugcinwa kwi-55 ~ 60 degrees. Ukuba iqondo lokushisa liphezulu kakhulu, i-nickel saline hydrolysis iya kwenzeka, kubangele i-pinholes kwi-coating kwaye ngexesha elifanayo linciphisa i-cathode polarization.
2. PH ixabiso. Ixabiso le-PH ye-electrolyte ye-nickel-plated inempembelelo enkulu ekusebenzeni kwengubo kunye nokusebenza kwe-electrolyte. Ngokuqhelekileyo, ixabiso le-pH ye-nickel plating electrolyte ye-PCB igcinwa phakathi kwe-3 kunye ne-4. Isisombululo se-nickel se-nickel esinexabiso eliphezulu le-PH sine-dispersion force ephezulu kunye nokusebenza ngokufanelekileyo kwe-cathode. Kodwa i-PH iphezulu kakhulu, kuba i-cathode isoloko iguqula i-hydrogen ngexesha lenkqubo ye-electroplating, xa ingaphezulu kwe-6, iya kubangela imingxuma kwi-plating layer. Isisombululo se-nickel plating esine-PH esezantsi sinokuchithwa kwe-anode engcono kwaye inokunyusa umxholo wetyuwa ye-nickel kwi-electrolyte. Nangona kunjalo, ukuba i-pH iphantsi kakhulu, uluhlu lweqondo lokushisa lokufumana umaleko oqaqambileyo wokutya luya kucuthwa. Ukongeza i-nickel carbonate okanye i-nickel carbonate esisiseko yongeza ixabiso le-PH; ukongeza i-asidi ye-sulfamic okanye i-asidi ye-sulfuric kunciphisa ixabiso le-pH, kwaye ihlola kwaye ilungelelanise ixabiso le-PH rhoqo kwiiyure ezine ngexesha lomsebenzi.
3. Anode. I-nickel plating yesiqhelo yee-PCBs ezinokubonwa ngoku zonke zisebenzisa i-anodes enyibilikayo, kwaye kuqhelekile ukusebenzisa iibhaskithi ze-titanium njenge-anodes ye-engile ye-nickel yangaphakathi. Ibhaskithi ye-titanium kufuneka ifakwe kwisikhwama se-anode esilukiweyo se-polypropylene ukuthintela udaka lwe-anode ukuba lungangeni kwisisombululo se-plating, kwaye kufuneka icocwe rhoqo kwaye ihlolwe ukuba i-eyelet igudile.
4. Ukusulungekiswa. Xa kukho ukungcoliseka kwezinto eziphilayo kwisisombululo se-plating, kufuneka siphathwe ngekhabhoni esebenzayo. Kodwa le ndlela ihlala isusa inxalenye ye-agent yokunciphisa uxinzelelo (i-additive), ekufuneka yongezwe.
5. Uhlalutyo. Isisombululo seplating kufuneka sisebenzise iingongoma eziphambili zemigaqo yenkqubo echazwe kulawulo lwenkqubo. Uhlalutya rhoqo ukubunjwa kwesisombululo se-plating kunye novavanyo lweseli ye-Hull, kwaye ukhokele isebe lokuvelisa ukulungelelanisa iiparitha zesisombululo se-plating ngokweeparamitha ezifunyenweyo.
6. Ukuvuselela. Inkqubo yokubeka i-nickel iyafana nezinye iinkqubo ze-electroplating. Injongo yokuvuselela kukukhawulezisa inkqubo yokudlulisa ubuninzi ukunciphisa ukuguqulwa koxinzelelo kunye nokwandisa umda ophezulu wobuninzi obuvunyelweyo bangoku. Kukwakho nefuthe elibaluleke kakhulu lokuvuselela isisombululo se-plating, kukunciphisa okanye ukuthintela imingxuma kwi-nickel plating layer. Ukusetyenziswa ngokuqhelekileyo umoya oxinyiweyo, ukunyakaza kwe-cathode kunye nokujikeleza okunyanzeliswayo (kudityaniswa ne-carbon core kunye ne-cotton core filtration) ivuselela.
7. Uxinaniso lwangoku lweCathode. Uxinaniso lwangoku lweCathode lunempembelelo kwimpumelelo yangoku yecathode, izinga lokubekwa kunye nomgangatho wokugquma. Xa usebenzisa i-electrolyte ene-PH ephantsi ye-nickel plating, kwindawo ephantsi yoxinano lwangoku, i-cathode esebenzayo ngoku iyanda ngokunyuka koxinzelelo lwangoku; kwindawo ephezulu yoxinano lwangoku, i-cathode esebenzayo yangoku ixhomekeke kubuninzi bangoku; ngelixa xa usebenzisa i-PH ephezulu Xa i-nickel yolwelo lwe-electroplating, ubudlelwane phakathi kwe-cathode yangoku kunye noxinaniso lwangoku alubalulekanga. Njengezinye iintlobo ze-plating, uluhlu lwe-cathode yangoku yoxinaniso olukhethiweyo kwi-nickel plating kufuneka luxhomekeke ekubunjweni, ubushushu kunye neemeko ezishukumisayo zesisombululo sokucoca.