Ha theknoloji e ntse e hatela pele, tlhoko ea liboto tsa potoloho e hatisitsoeng (PCBs) e ntse e hola. Li-PCB ke likarolo tsa bohlokoa lisebelisoa tsa elektroniki tse hokahanyang likarolo tse fapaneng ho theha lipotoloho tse sebetsang. Ts'ebetso ea tlhahiso ea PCB e kenyelletsa mehato e mengata, e 'ngoe ea mehato ea bohlokoa ke etching, e re lumellang ho tlosa koporo e sa hlokahaleng holim'a boto. Le ha litharollo tsa etch tsa khoebo li fumaneha habonolo, o ka iketsetsa tharollo ea PCB ea hau lapeng. Ka blog ena, re tla u tataisa ts'ebetsong, re fana ka litharollo tse theko e tlaase le tse bonolo ho li sebelisa bakeng sa litlhoko tsohle tsa hau tsa PCB.
lisebelisoa tse so ntlafatsoe:
Ho theha tharollo ea maiketsetso ea PCB, o tla hloka lisebelisoa tse latelang:
1. Hydrogen peroxide (3%): Ntho e tloaelehileng ea ka tlung e sebetsang e le moemeli oa oxidizing.
2. Hydrochloric acid (hydrochloric acid): E fumaneha mabenkeleng a mangata a hardware, haholo-holo e sebelisetsoa ho hloekisa.
3. Letsoai la tafole (sodium chloride): Ntho e 'ngoe e tloaelehileng ea lelapa e ka ntlafatsang ts'ebetso ea etching.
4. Metsi a hloekisitsoeng: a sebelisetsoang ho hlapolla tharollo le ho boloka botsitso ba eona.
lenaneo:
Joale, ha re kenelle molemong oa ho theha tharollo ea etching ea PCB lapeng:
1. Tšireletseho Pele: Pele u qala, etsa bonnete ba hore u na le lisebelisoa tse hlokahalang tsa tšireletso tse kang liatlana, likhalase le sebaka se nang le moea o pholileng. Lik'hemik'hale li ka ba kotsi haeba li sa tšoaroe hantle, kahoo e-ba hlokolosi nakong eohle ea ts'ebetso.
2. Tharollo e tsoakiloeng: Kenya 100ml hydrogen peroxide (3%), 30ml hydrochloric acid le 15g letsoai ka sejaneng sa khalase. Hlohlelletsa motsoako hantle ho fihlela letsoai le qhibiliha ka ho feletseng.
3. Dilution: Ka mor'a ho kopanya litharollo tsa mantlha, hlapolla ka hoo e ka bang 300 ml ea metsi a hloekisitsoeng. Mohato ona ke oa bohlokoa bakeng sa ho boloka etch e tsitsitseng.
4. Etching process: Kenya PCB ka tharollo ea etching, etsa bonnete ba hore e qoelisoa ka ho feletseng. Ka bonolo hlohlelletsa tharollo ka linako tse ling ho khothaletsa etching e tšoanang. Nako ea etch e ka fapana ho latela ho rarahana le botenya ba mesaletsa ea koporo, empa hangata ke metsotso e 10 ho isa ho e 30.
5. Hlatsoa 'me U Hloekise: Ka mor'a nako e lakatsehang ea etching, tlosa PCB ho tloha tharollo ea etching' me u hlatsoe ka botlalo tlas'a metsi a phallang ho emisa ts'ebetso ea etching. Sebelisa borashe bo bonolo kapa seponche ho hloekisa litšila tse setseng botong.
Ho iketsetsa tharollo ea PCB etching lapeng ho fana ka mefuta e meng e fumanehang ka theko e tlase ebile e bonolo ho e sebelisa ho feta likhetho tsa khoebo. Leha ho le joalo, ke habohlokoa ho hopola hore ho sebetsa le lik'hemik'hale ho hloka mehato e nepahetseng ea tšireletso. Ka linako tsohle tšoara lisebelisoa tsena sebakeng se nang le moea o motle 'me u apare lisebelisoa tse sireletsang. Litharollo tsa maiketsetso tsa PCB tsa maiketsetso li etsa hore merero ea elektroniki ea DIY e be bonolo ha e ntse e boloka chelete le ho fokotsa litšila. Ka hona, lokolla boqapi ba hau 'me u ikakhele ka setotsoana lefatšeng la PCB etching ho tsoa boiketlong ba ntlo ea hau!
Nako ea poso: Sep-04-2023