Na PCB, a na-eji nickel mee ihe mkpuchi maka ọla dị oke ọnụ ahịa na ntọala. A na-etinyekarị nkwụnye ego nickel dị obere nke PCB na ngwọta Watt nickel plating gbanwetụrụ yana ụfọdụ ihe mgbakwunye sulfmate nickel plating na mgbakwunye na-ebelata nchekasị. Ka ndị ọkachamara na-emepụta ihe nyochara gị nsogbu ndị ngwọta nickel plating PCB na-enwekarị mgbe ị na-eji ya?

1. Usoro nickel. Na ọnọdụ okpomọkụ dị iche iche, okpomọkụ ịsa ahụ eji eme ihe dịkwa iche. Na ngwọta nickel plating nwere okpomọkụ dị elu, ihe mkpuchi nickel plating nwetara nwere obere nrụgide dị n'ime na ezigbo ductility. A na-edobe okpomọkụ ọrụ izugbe na 55 ~ 60 degrees. Ọ bụrụ na okpomọkụ dị oke elu, nickel saline hydrolysis ga-eme, na-ebute pinholes na mkpuchi ma n'otu oge ahụ na-ebelata cathode polarization.

2. PH uru. Uru PH nke nickel-plated electrolyte nwere mmetụta dị ukwuu na mkpuchi mkpuchi na arụmọrụ electrolyte. N'ozuzu, pH uru nke nickel plating electrolyte nke PCB na-nọgidere n'etiti 3 na 4. Nickel plating ngwọta na elu PH uru nwere elu dispersion ike na cathode ugbu a arụmọrụ. Ma PH dị oke elu, n'ihi na cathode na-aga n'ihu na-emepụta hydrogen n'oge usoro electroplating, mgbe ọ karịrị 6, ọ ga-eme ka pinholes dị na oyi akwa. Ngwọta nickel plating na PH dị ala nwere mgbasa nke anode ka mma ma nwee ike ịbawanye ọdịnaya nke nnu nickel na electrolyte. Otú ọ dị, ọ bụrụ na pH dị ala, a ga-ebelata okpomọkụ maka ịnweta oyi akwa na-egbuke egbuke. Ịgbakwunye nickel carbonate ma ọ bụ isi nickel carbonate na-abawanye uru PH; ịgbakwunye sulfamic acid ma ọ bụ sulfuric acid na-ebelata uru pH, ma na-enyocha ma na-edozi uru PH kwa awa anọ n'oge ọrụ.

3. Anode. Ngwakọta nickel a na-ahụkarị nke PCB nke enwere ike ịhụ ugbu a na-eji anodes soluble, ọ bụkwa ihe a na-ejikarị nkata titanium dị ka anodes maka akụkụ nickel dị n'ime. Ekwesịrị itinye nkata titanium n'ime akpa anode nke ihe polypropylene kpara iji gbochie apịtị anode ka ọ daba na ngwọta plating, ma na-ehicha ya mgbe niile ma lelee ma anya anya ọ dị ire.

4. Ịdị ọcha. Mgbe enwere mmetọ organic na ngwọta plating, a ga-eji carbon arụ ọrụ gwọọ ya. Mana usoro a na-ewepụkarị akụkụ nke onye na-ebelata nchekasị (ihe mgbakwunye), nke a ga-agbakwunye.

5. Nyocha. Ngwọta plating kwesịrị iji isi ihe nke ụkpụrụ usoro akọwapụtara na njikwa usoro. Nyochaa oge ụfọdụ ihe mejupụtara ihe ngwọta plating na ule Hull cell, ma duzie ngalaba mmepụta ka ịhazigharị paramita nke ngwọta plating dị ka ihe enwetara si dị.

6. Na-akpali akpali. Usoro nickel plating bụ otu ihe ahụ dị ka usoro electroplating ndị ọzọ. Ebumnuche nke ịkpali bụ iji mee ka usoro nnyefe dị ngwa ngwa iji belata mgbanwe ntinye uche ma mee ka njedebe dị elu nke njupụta dị ugbu a kwere. Enwekwara mmetụta dị oke mkpa nke ịkpali ngwọta plating, nke bụ iji belata ma ọ bụ gbochie pinholes na oyi akwa nickel plating. Ikuku a na-ejikarị eme ihe, mmegharị cathode na mgbasa ozi mmanye (jikọta ya na carbon core na owu isi filtration) na-akpali akpali.

7. Cathode njupụta ugbu a. Njupụta nke Cathode dị ugbu a nwere mmetụta na arụmọrụ cathode dị ugbu a, ọnụego ntinye na mma mkpuchi. Mgbe ị na-eji electrolyte nwere obere PH maka ntinye nickel, na mpaghara njupụta dị ugbu a, arụmọrụ cathode na-abawanye na njupụta ugbu a na-abawanye; na mpaghara njupụta dị elu ugbu a, arụmọrụ cathode dị ugbu a na-adabere na njupụta dị ugbu a; mgbe ị na-eji PH dị elu Mgbe electroplating mmiri mmiri nickel, mmekọrịta dị n'etiti cathode arụ ọrụ ugbu a na njupụta ugbu a adịghị mkpa. Dị ka ọ dị na ụdị plating ndị ọzọ, ụdị njupụta nke cathode dị ugbu a ahọrọ maka nickel plating kwesịkwara ịdabere na nhazi, okpomọkụ na ọnọdụ mkpali nke ngwọta plating.