Pomwe ukadaulo ukupita patsogolo, kufunikira kwa ma board osindikizidwa (PCBs) kukukulirakulira. PCBs ndi zigawo zofunika mu zipangizo zamagetsi kuti kulumikiza zigawo zosiyanasiyana kulenga madera zinchito. Kupanga kwa PCB kumaphatikizapo masitepe angapo, imodzi mwamagawo ofunikira ndi etching, yomwe imatilola kuchotsa mkuwa wosafunikira pamwamba pa bolodi. Ngakhale mayankho amalonda akupezeka mosavuta, mutha kupanganso mayankho anu a PCB kunyumba. Mubulogu iyi, tikuwongolerani momwe mungagwiritsire ntchito, ndikukupatsani mayankho otsika mtengo komanso osavuta kugwiritsa ntchito pazosowa zanu zonse za PCB.
zopangira:
Kuti mupange njira yopangira PCB yopangira tokha, mufunika izi:
1. Hydrogen peroxide (3%): Chinthu chodziwika bwino cha m'nyumba chomwe chimagwira ntchito ngati okosijeni.
2. Hydrochloric acid (hydrochloric acid): Imapezeka m'masitolo ambiri a hardware, imagwiritsidwa ntchito kwambiri poyeretsa.
3. Mchere wa patebulo (sodium chloride): Chinthu chinanso chodziwika bwino cha m'nyumba chomwe chingathandize kuti ma etching apangidwe.
4. Madzi osungunuka: amagwiritsidwa ntchito kusungunula yankho ndikusunga kusasinthasintha kwake.
pulogalamu:
Tsopano, tiyeni tilowe munjira yopangira yankho la PCB etching kunyumba:
1. Chitetezo Choyamba: Musanayambe, onetsetsani kuti muli ndi zida zotetezera zofunika monga magolovesi, magalasi, ndi malo olowera mpweya wabwino. Mankhwala amatha kukhala owopsa ngati sagwiritsidwa ntchito moyenera, choncho samalani nthawi yonseyi.
2. Kusakaniza: Thirani 100ml wa hydrogen peroxide (3%), 30ml hydrochloric acid ndi 15g mchere mu chidebe chagalasi. Sakanizani kusakaniza bwino mpaka mchere utasungunuka kwathunthu.
3. Dilution: Mukasakaniza zoyambira zoyambira, tsitsani ndi pafupifupi 300 ml ya madzi osungunuka. Sitepe iyi ndi yofunika kwambiri kuti mukhalebe ogwirizana bwino.
4. Etching process: Iviikani PCB mu etching solution, onetsetsani kuti yamira kwathunthu. Pang'onopang'ono gwedezani yankho nthawi zina kuti mulimbikitse etching yofanana. Nthawi ya etch imatha kusiyanasiyana kutengera zovuta komanso makulidwe a mkuwa, koma nthawi zambiri imakhala mphindi 10 mpaka 30.
5. Muzimutsuka ndi Kuyeretsa: Pambuyo pa nthawi yomwe mukufuna etching, chotsani PCB kuchokera muzitsulo zotsekemera ndikutsuka bwino pansi pa madzi kuti muyimitse ndondomekoyi. Gwiritsani ntchito burashi yofewa kapena siponji kuti muyeretse zonyansa zilizonse zomwe zatsala pa bolodi.
Kupanga yankho lanu la PCB etching kunyumba kumapereka njira yotsika mtengo komanso yosavuta kugwiritsa ntchito pazosankha zamalonda. Komabe, ndikofunikira kukumbukira kuti kugwira ntchito ndi mankhwala kumafuna kusamala koyenera. Nthawi zonse gwirani zinthuzi pamalo abwino mpweya wabwino ndipo valani zida zodzitetezera. Mayankho opangira tokha a PCB amapangitsa kuti ntchito zamagetsi za DIY zikhale zosavuta ndikusunga ndalama ndikuchepetsa zinyalala. Chifukwa chake masulani luso lanu ndikulowa m'dziko la PCB etching kuchokera kunyumba kwanu!
Nthawi yotumiza: Sep-04-2023