PCB bolodi electro-gold obtains gold through electrolysis, while chemical gold obtains gold through chemical reduction reaction!

Simply put, PCB electroplating gold, like other PCB electroplating, requires power and a rectifier. There are many kinds of processes, including cyanide-containing, non-cyanide systems, and non-cyanide systems, such as citric acid type and sulfite type. All non-cyanide systems are used in the PCB industry.

Golide wamankhwala (kuyika golide wopanda magetsi) safunikira kupatsidwa mphamvu, amayika golide pa bolodi kudzera munjira yamankhwala mu yankho.

Iwo ali ndi ubwino ndi kuipa kwawo. Kuphatikiza pa mphamvu koma osagwiritsa ntchito mphamvu, bolodi la PCB likhoza kukhala lakuda kwambiri, malinga ngati nthawi ikukulirakulira, ndiyoyenera kugwirizanitsa matabwa. Mwayi woti PCB ipange mankhwala opangidwa ndi electro-golide kutayidwa ndi wocheperako kuposa wa golide wamankhwala. Komabe, PCB magetsi golide ayenera olumikizidwa kwa bolodi lonse, ndipo si oyenera mizere makamaka woonda.

Golide wamankhwala nthawi zambiri amakhala woonda kwambiri (osakwana ma microns 0.2), ndipo chiyero cha golide chimakhala chochepa. Madzi ogwira ntchito amatha kutayidwa pokhapokha atagwiritsidwa ntchito pamlingo winawake.

Imodzi ndi PCB electroplating kupanga faifi tambala golide

Imodzi ndikugwiritsa ntchito sodium hypophosphite’s own oxidation-reduction reaction kuti apange nickel layer, ndi m’malo mwake kupanga golide wosanjikiza (Uemura’s (TSB71 ali ndi golide wodzichepetsera)), yomwe ndi njira yamankhwala.

Ivy: Kuphatikiza pa kusiyana kwa njira pakati pa PCB electroplating ndi kumizidwa golide, pali kusiyana kotere:

PCB electroplating golide wosanjikiza ndi wandiweyani ndi molimba, choncho nthawi zambiri amagwiritsidwa ntchito populagi ndi kulowetsa mbali zotsetsereka, monga zala zagolide za makhadi osinthira;

Golide womiza ndi wabwino kukwera chifukwa cha malo athyathyathya a pad ndipo amagwiritsidwanso ntchito powotchera wopanda lead.