1.Kodi PCB Electroplating ndi chiyani?
PCB electroplating imatanthawuza njira yoyika chitsulo pamwamba pa PCB kuti igwirizane ndi magetsi, kutumiza ma siginecha, kutaya kutentha, ndi ntchito zina. Ma electroplating achikhalidwe a DC amavutika ndi zovuta monga kusanja bwino, kuya kosakwanira kwa plating, ndi zotsatira za m'mphepete, zomwe zimapangitsa kuti zikhale zovuta kukwaniritsa zofunikira zopanga ma PCB apamwamba monga ma board a High-Density Interconnect (HDI) ndi Flexible Printed Circuits (FPC). Magetsi osinthira pafupipafupi amatembenuza magetsi apa mains AC kukhala othamanga kwambiri AC, omwe amakonzedwa ndikusefedwa kuti apange DC yokhazikika kapena pulsed current. Maulendo awo ogwiritsira ntchito amatha kufika makumi kapena mazana a kilohertz, kupitilira mphamvu pafupipafupi (50/60Hz) yamagetsi amtundu wa DC. Mawonekedwe apamwamba kwambiriwa amabweretsa zabwino zingapo pa PCB electroplating.
2. Ubwino wa High-Frequency Switching Power Supplies mu PCB Electroplating
Uniformity Yoyatira Yowonjezera: "Zotsatira zapakhungu" za mafunde othamanga kwambiri zimapangitsa kuti pakali pano ziziyang'ana pamwamba pa kondakitala, ndikuwongolera bwino zokutira ndikuchepetsa zotsatira zam'mphepete. Izi ndizothandiza makamaka pakuyika zomangira zovuta monga mizere yabwino ndi ma microholes.
Kuthekera kwa Kupaka Kuzama Kwambiri: Mafunde apamwamba amatha kulowa bwino makoma a dzenje, kukulitsa makulidwe ndi kufanana kwa plating mkati mwa mabowo, omwe amakwaniritsa zofunikira zokutira pamlingo wapamwamba kwambiri.
Kuchuluka kwa Electroplating Mwachangu: Mawonekedwe oyankha mwachangu amagetsi osinthasintha pafupipafupi amathandizira kuwongolera bwino kwapano, kuchepetsa nthawi yoyika ndikuwonjezera kupanga bwino.
Kuchepetsa Kugwiritsa Ntchito Mphamvu: Magetsi osinthira pafupipafupi amakhala ndi kusinthika kwakukulu komanso kugwiritsa ntchito mphamvu pang'ono, kumagwirizana ndi zomwe amapanga zobiriwira.
Kuthekera kwa Pulse Plating: Mphamvu zosinthira pafupipafupi zimatha kutulutsa pakali pano, ndikupangitsa kuti pulse electroplating. Pulse plating imapangitsa kuti zokutira zikhale bwino, zimawonjezera kachulukidwe zokutira, zimachepetsa porosity, komanso zimachepetsa kugwiritsa ntchito zowonjezera.
3.Zitsanzo za High-Frequency Switching Power Supply Applications mu PCB Electroplating
A. Copper Plating: Copper electroplating imagwiritsidwa ntchito popanga PCB kupanga gawo loyendetsa dera. Ma rectifiers osinthira ma frequency apamwamba amapereka kachulukidwe kake komweko, kuwonetsetsa kuti nsanjika zamkuwa zofananira zikhazikike ndikuwongolera mawonekedwe ndi magwiridwe antchito a gulu lopukutidwa.
B. Chithandizo Chapamwamba: Chithandizo chapamwamba cha ma PCB, monga golide kapena plating ya siliva, chimafunanso mphamvu yokhazikika ya DC. Ma rectifiers osinthira pafupipafupi amatha kupereka ma voliyumu olondola pazitsulo zosiyanasiyana zokutira, kuwonetsetsa kusalala komanso kukana kwa dzimbiri kwa zokutira.
C. Chemical Plating: plating mankhwala ikuchitika popanda panopa, koma ndondomeko ali ndi zofunika kwambiri kutentha ndi kachulukidwe panopa. Ma rectifiers osinthira pafupipafupi amatha kupereka mphamvu zothandizira panjira iyi, zomwe zimathandizira kuwongolera mitengo ya plating.
4.Momwe Mungadziwire Zofunikira za PCB Electroplating Power Supply
Mafotokozedwe amagetsi a DC omwe amafunikira pakupanga ma electroplating a PCB amadalira zinthu zingapo, kuphatikiza mtundu wa njira yopangira ma electroplating, kukula kwa PCB, malo opukutira, zofunikira za kachulukidwe pano, komanso kupanga bwino. M'munsimu muli zina zofunika ndi mafotokozedwe wamba magetsi:
A.Mafotokozedwe Apano
● Kachulukidwe Kakalipano: Kachulukidwe wamakono a PCB electroplating nthawi zambiri amayambira 1-10 A/dm² (ampere pa sikweya decimita), kutengera njira ya electroplating (mwachitsanzo, plating yamkuwa, plating ya golide, nickel plating) ndi zofunikira zokutira.
● Zonse Zomwe Zikufunikira Panopa: Zonse zomwe zikufunidwa panopa zimawerengedwa kutengera dera la PCB komanso kuchuluka kwake komwe kulipo. Mwachitsanzo:
⬛Ngati malo a PCB plating ndi 10 dm² ndipo kachulukidwe kameneka ndi 2 A/dm², zonse zomwe zikufunika pakadali pano zingakhale 20 A.
⬛Pa ma PCB akulu kapena kupanga zambiri, ma amperes mazana angapo kapena zotulutsa zaposachedwa zitha kufunikira.
Mitundu Yodziwika Yapano:
●Ma PCB ang'onoang'ono kapena kugwiritsa ntchito labotale: 10-50 A
●Kupanga PCB yapakatikati: 50-200 A
● Ma PCB akuluakulu kapena kupanga zinthu zambiri: 200-1000 A kapena kupitirira apo
Mafotokozedwe a B.Voltage
⬛PCB electroplating nthawi zambiri imafuna ma voltages otsika, nthawi zambiri mumitundu ya 5-24 V.
⬛Zofunikira zamagetsi zimatengera zinthu monga kukana kwa kusamba kwa plating, mtunda wapakati pa maelekitirodi, ndi ma conductivity a electrolyte.
⬛Pa njira zapadera (mwachitsanzo, pulse plating), ma voltage apamwamba (monga 30-50 V) angafunike.
Ma Voltage Wamba:
● Standard DC electroplating: 6-12 V
● Pulse plating kapena njira zapadera: 12-24 V kapena apamwamba
Mitundu Yopereka Mphamvu
● DC Power Supply: Amagwiritsidwa ntchito pachikhalidwe cha DC electroplating, kupereka mphamvu zokhazikika komanso magetsi.
● Pulse Power Supply: Amagwiritsidwa ntchito pa pulse electroplating, yomwe imatha kutulutsa mafunde othamanga kwambiri kuti apititse patsogolo khalidwe la plating.
● High-Frequency Switching Power Supply: Kuchita bwino kwambiri komanso kuyankha mofulumira, koyenera pazifukwa zapamwamba za electroplating.
C.Power Supply Power
Mphamvu yamagetsi (P) imatsimikiziridwa ndi pano (I) ndi voteji (V), ndi chilinganizo: P = I × V.
Mwachitsanzo, mphamvu yamagetsi yomwe imatulutsa 100 A pa 12 V ingakhale ndi mphamvu ya 1200 W (1.2 kW).
Common Power Range:
● Zida zazing'ono: 500 W - 2 kW
● Zida zapakatikati: 2 kW - 10 kW
●Zipangizo zazikulu: 10 kW - 50 kW kapena kupitirira apo
Nthawi yotumiza: Feb-13-2025
