1. Kodi PCB Electroplating ndi chiyani?
Kuyika ma electroplating a PCB kumatanthauza njira yoyika chitsulo pamwamba pa PCB kuti igwirizane ndi magetsi, kutumiza ma signal, kutenthetsa kutentha, ndi ntchito zina. Kuyika ma electroplating achikhalidwe a DC kumakumana ndi mavuto monga kusafanana bwino kwa ma plating, kusakwanira kwa ma plating, komanso zotsatira zake m'mphepete, zomwe zimapangitsa kuti zikhale zovuta kukwaniritsa zofunikira pakupanga ma PCB apamwamba monga High-Density Interconnect (HDI) boards ndi Flexible Printed Circuits (FPC). Ma power supplies osinthasintha ma frequency amasintha ma mains AC power kukhala high-frequency AC, yomwe kenako imakonzedwa ndikusefedwa kuti ipange DC yokhazikika kapena pulsed current. Ma frequency awo ogwirira ntchito amatha kufika makumi kapena mazana a kilohertz, kupitirira kwambiri ma frequency amagetsi (50/60Hz) a DC power supplies achikhalidwe. Khalidwe la ma frequency apamwambali limabweretsa zabwino zingapo pa PCB electroplating.
2. Ubwino wa Mphamvu Zosinthira Zambiri mu PCB Electroplating
Kukongola kwa Kuphimba: "Zotsatira za khungu" za mafunde amphamvu zimapangitsa kuti magetsi azizungulira pamwamba pa kondakitala, zomwe zimapangitsa kuti kuphimba kukhale kofanana komanso kuchepetsa zotsatira zake. Izi ndizothandiza kwambiri popangira ma plating structures ovuta monga mizere yaying'ono ndi mabowo ang'onoang'ono.
Kutha Kwambiri Kuyika Mabowo Ozama: Mafunde amphamvu amatha kulowa bwino m'makoma a mabowo, zomwe zimapangitsa kuti makulidwe ndi kufanana kwa mabowo oyikamo mabowo, zomwe zimakwaniritsa zofunikira za ma plating a ma vias okhala ndi chiŵerengero chapamwamba.
Kuchuluka kwa Mphamvu ya Electroplating: Makhalidwe oyankha mwachangu a magetsi osinthira pafupipafupi kwambiri amathandizira kuwongolera bwino kwamagetsi, kuchepetsa nthawi yopangira ma plating ndikuwonjezera magwiridwe antchito opangira.
Kugwiritsa Ntchito Mphamvu Mochepa: Mphamvu zamagetsi zosinthira pafupipafupi zimakhala ndi mphamvu zambiri zosinthira komanso kugwiritsa ntchito mphamvu zochepa, zomwe zikugwirizana ndi momwe zinthu zobiriwira zimagwirira ntchito.
Kutha kwa Pulse Plating: Mphamvu zamagetsi zosinthira pafupipafupi zimatha kutulutsa mphamvu ya pulsed mosavuta, zomwe zimathandiza kuti pulse electroplating igwire bwino ntchito. Pulse plating imapangitsa kuti utoto ukhale wabwino, umawonjezera kuchuluka kwa utoto, umachepetsa porosity, komanso umachepetsa kugwiritsa ntchito zowonjezera.
3. Zitsanzo za Kugwiritsa Ntchito Mphamvu Yosinthira Mafunde Pang'onopang'ono mu PCB Electroplating
A. Kupaka Mkuwa: Kupaka kwa electroplating kwa mkuwa kumagwiritsidwa ntchito popanga ma PCB kuti apange gawo loyendetsa magetsi la dera. Zosinthira zamagetsi zamagetsi zamagetsi zimapereka kuchuluka kwa mphamvu yamagetsi kolondola, kuonetsetsa kuti gawo lozungulira la mkuwa limakhala lofanana komanso kukonza ubwino ndi magwiridwe antchito a gawo lozungulira.
B. Kukonza Pamwamba: Kukonza pamwamba pa ma PCB, monga golide kapena siliva, kumafunikanso mphamvu yokhazikika ya DC. Ma rectifier osinthira pafupipafupi amatha kupereka mphamvu ndi magetsi oyenera a zitsulo zosiyanasiyana zomangira, kuonetsetsa kuti chophimbacho chikhale chosalala komanso cholimba.
C. Kupaka Makemikolo: Kupaka makemikolo kumachitika popanda mphamvu yamagetsi, koma njirayi ili ndi zofunikira kwambiri pa kutentha ndi kuchuluka kwa mphamvu yamagetsi. Zosinthira zamagetsi zamagetsi zimatha kupereka mphamvu yothandizira pa ntchitoyi, zomwe zimathandiza kuwongolera kuchuluka kwa makemikolo.
4. Momwe Mungadziwire Mafotokozedwe a Mphamvu Yopangira Ma Electroplating ya PCB
Mafotokozedwe a magetsi a DC omwe amafunikira pakupanga ma electroplating a PCB amadalira zinthu zingapo, kuphatikizapo mtundu wa njira yopangira ma electroplating, kukula kwa PCB, malo opangira ma plate, kuchuluka kwa magetsi komwe kukufunika pakali pano, komanso momwe zinthu zilili bwino. Pansipa pali magawo ofunikira komanso mafotokozedwe ofanana a magetsi:
A. Mafotokozedwe Apano
●Kuchuluka kwa Mphamvu: Kuchuluka kwa mphamvu ya PCB electroplating nthawi zambiri kumakhala pakati pa 1-10 A/dm² (ampere pa decimeter imodzi), kutengera njira yopangira magetsi (monga copper plating, gold plating, nickel plating) ndi zofunikira pakuphimba.
●Zofunikira Zonse Zamakono: Zofunikira zonse zamakono zimawerengedwa kutengera dera la PCB ndi kuchulukana kwamakono. Mwachitsanzo:
⬛Ngati malo olumikizira ma PCB ndi 10 dm² ndipo kuchuluka kwa magetsi ndi 2 A/dm², mphamvu yonse ya magetsi idzakhala 20 A.
⬛Pa ma PCB akuluakulu kapena kupanga zinthu zambiri, ma ampere mazana angapo kapena mphamvu zambiri zamphamvu zingafunike.
Ma Ranges Amakono Omwe Amagwiritsidwa Ntchito:
●Ma PCB ang'onoang'ono kapena kugwiritsa ntchito labotale: 10-50 A
●Kupanga PCB yapakati: 50-200 A
●Ma PCB akuluakulu kapena kupanga zinthu zambiri: 200-1000 A kapena kupitirira apo
Mafotokozedwe a B.Voltage
⬛Kupaka ma electroplating a PCB nthawi zambiri kumafuna ma voltage otsika, nthawi zambiri amakhala pakati pa 5-24 V.
⬛Zofunikira pa voltage zimadalira zinthu monga kukana kwa bafa lopaka, mtunda pakati pa ma electrode, ndi mphamvu ya electrolyte.
⬛Pa ntchito zapadera (monga, pulse plating), ma voltage okwera (monga 30-50 V) angafunike.
Magulu Ofanana a Voltage:
●Kupaka magetsi kwa DC wamba: 6-12 V
●Kupaka ma pulse kapena njira zapadera: 12-24 V kapena kupitirira apo
Mitundu Yopereka Mphamvu
●Kupereka Mphamvu ya DC: Kumagwiritsidwa ntchito popanga ma electroplating a DC, kupereka mphamvu yamagetsi yokhazikika komanso mphamvu yamagetsi.
●Kupereka Mphamvu ya Pulse: Kumagwiritsidwa ntchito popangira ma electroplating a pulse, komwe kumatha kutulutsa ma pulse currents amphamvu kwambiri kuti akonze bwino ma plating.
●Kupereka Mphamvu Yosinthira Ma Frequency: Kugwiritsa ntchito bwino kwambiri komanso kuyankha mwachangu, koyenera kugwiritsa ntchito ma electroplating olondola kwambiri.
C. Mphamvu Yoperekera Mphamvu
Mphamvu yamagetsi (P) imatsimikiziridwa ndi mphamvu yamagetsi (I) ndi mphamvu yamagetsi (V), ndi fomula iyi: P = I × V.
Mwachitsanzo, magetsi omwe amatulutsa 100 A pa 12 V angakhale ndi mphamvu ya 1200 W (1.2 kW).
Mphamvu Yofanana:
●Zida zazing'ono: 500 W - 2 kW
●Zida zapakati: 2 kW - 10 kW
●Zida zazikulu: 10 kW - 50 kW kapena kupitirira apo
Nthawi yotumizira: Feb-13-2025
