1.Chii chinonzi PCB Electroplating?
PCB electroplating inoreva maitiro ekuisa simbi pamusoro pePCB kuti iwane kubatanidza magetsi, kutapurirana chiratidzo, kupisa kupisa, uye mamwe mabasa. Traditional DC electroplating inotambura nenyaya dzakaita senge kusakwana kwekupfeka, kusakwana kudzika kwakadzika, uye kumucheto, zvichiita kuti zviome kuita zvinodiwa zvekugadzira zvemaPCB epamberi senge High-Density Interconnect (HDI) mabhodhi uye Flexible Printed Circuits (FPC). High-frequency switching power supply inoshandura mains AC simba kune yakakwira-frequency AC, inozogadziriswa nekusefa kuti ibudise yakagadzikana DC kana pulsed current. Mafambiro avo ekushanda anogona kusvika makumi kana kunyange mazana e kilohertz, achidarika simba frequency (50/60Hz) yemagetsi echinyakare DC. Iyi yakakwirira-frequency hunhu inounza akati wandei mabhenefiti kuPCB electroplating.
2.Zvakanakira zveHigh-Frequency Switching Power Supplies muPCB Electroplating
Yakavandudzwa Coating Uniformity: Iyo "skin effect" ye-high-frequency currents inokonzeresa kuti yazvino itarise pamusoro peiyo conductor, zvinobudirira kuvandudza coating kufanana uye kuderedza kumucheto mhedzisiro. Izvi zvinonyanya kubatsira pakuputira zvimiro zvakaoma semitsetse yakanaka uye ma micro-holes.
Yakanatsiridzwa Yakadzika Plating Kugona: Yakakwira-frequency mafungu anogona kupinda zvirinani madziro egomba, achiwedzera ukobvu uye kufanana kwekuputira mukati memakomba, ayo anosangana nezvinodiwa zveplating zvehupamhi hwehuwandu hwechiyero vias.
Kuwedzera Electroplating Kubudirira: Iyo inokurumidza kupindura maitiro e-high-frequency switching magetsi anogonesa kunyatso kudzora kwazvino, kuderedza nguva yeplating uye kuwedzera kugona kwekugadzira.
Yakaderedzwa Kushandiswa Kwesimba: Yakakwira-frequency switching magetsi emagetsi ane yakakwira shanduko inoshanda uye yakaderera simba rekushandisa, inopindirana nemaitiro ekugadzira girinhi.
Pulse Plating Kugona: Yakakwira-frequency switching magetsi ekushandisa anogona nyore kuburitsa pulsed ikozvino, ichigonesa pulse electroplating. Pulse plating inovandudza kunaka kwekupfeka, inowedzera coating density, inoderedza porosity, uye inoderedza kushandiswa kwezvinowedzera.
3.Examples yeHigh-Frequency Switching Power Supply Applications muPCB Electroplating
A. Copper Plating: Copper electroplating inoshandiswa muPCB kugadzira kuumba conductive layer yedunhu. High-frequency switching rectifiers inopa chaiyo density yazvino, kuve nechokwadi chekuisa yunifomu yemhangura layer uye kuvandudza kunaka uye kuita kweiyo yakapfava layer.
B. Surface Treatment: Kurapa kwepamusoro kwePCB, segoridhe kana sirivheri plating, kunodawo simba rakagadzikana reDC. Yakakwira-frequency switching rectifiers inogona kupa chaiyo ikozvino uye voltage kune akasiyana plating simbi, kuve nechokwadi kutsvedzerera uye kushora kuramba kwejasi.
C. Chemical Plating: kugadzirwa kwemakemikari kunoitwa pasina ikozvino, asi nzira yacho ine zvinodiwa zvakasimba zvekushisa uye ikozvino density. High-frequency switching rectifiers inogona kupa simba rekubatsira rekuita uku, zvichibatsira kudzora mitengo yeplating.
4.Ungasarudza sei PCB Electroplating Power Supply Specifications
Madimikira emagetsi eDC anodiwa kuPCB electroplating anoenderana nezvinhu zvakati wandei, zvinosanganisira rudzi rwe electroplating process, saizi yePCB, nzvimbo yeplating, ikozvino density zvinodiwa, uye kugona kugadzira. Pazasi pane akakosha paramita uye akajairwa magetsi ekupa zvirevo:
A. Current Specifications
● Current Density: Ikozvino density yePCB electroplating inowanzosiyana kubva 1-10 A/dm² (ampere per square decimeter), zvichienderana ne electroplating process (eg, copper plating, gold plating, nickel plating) uye coating zvinodiwa.
● Zvose Zvazvino Zvinodiwa: Zvose zvinotarisirwa zvino zvinotarwa zvichienderana nenharaunda yePCB uye huwandu hwazvino. Semuyenzaniso:
⬛Kana PCB plating nzvimbo iri 10 dm² uye density iripo iri 2 A/dm², iyo yese inodiwa iripo ingave 20 A.
⬛Kune maPCB akakura kana kugadzirwa kwakawanda, mazana akati wandei emaamperes kana zvakatokwira zvazvino zvinobuda zvinogona kudiwa.
Common Current Ranges:
●MaPCB madiki kana kushandiswa murabhoritari: 10-50 A
●Kugadzirwa kwePCB yepakati: 50-200 A
● Mahombe ePCB kana kugadzirwa kwakawanda: 200-1000 A kana kupfuura
B.Voltage Specifications
⬛PCB electroplating inowanzoda yakaderera voltages, kazhinji muhuwandu hwe5-24 V.
⬛Voltage zvinodiwa zvinoenderana nezvinhu zvakaita sekupokana kwebhati replating, chinhambwe chiri pakati pemagetsi emagetsi, uye conductivity ye electrolyte.
⬛Kune maitiro akasarudzika (semuenzaniso, pulse plating), yakakwirira voltage renji (senge 30-50 V) inogona kudiwa.
Common Voltage Ranges:
● Standard DC electroplating: 6-12 V
● Pulse plating kana maitiro akasiyana-siyana: 12-24 V kana kupfuura
Power Supply Types
● DC Power Supply: Inoshandiswa kune yechinyakare DC electroplating, ichipa yakagadzikana ikozvino uye voltage.
● Pulse Power Supply: Inoshandiswa pulse electroplating, inokwanisa kubudisa high-frequency pulsed currents kuti ivandudze kunaka kweplating.
● High-Frequency Switching Power Supply: Kubudirira kwepamusoro uye mhinduro inokurumidza, yakakodzera yepamusoro-soro ye electroplating zvinodiwa.
C.Power Supply Power
Simba rekupa simba (P) rinotariswa neazvino (I) uye voltage (V), ine fomula: P = I × V.
Semuenzaniso, magetsi anoburitsa 100 A pa12 V angave ane simba re1200 W (1.2 kW).
Common Power Range:
● Zvigadzirwa zviduku: 500 W - 2 kW
● Zvigadzirwa zvepakati-kati: 2 kW - 10 kW
● Midziyo mikuru: 10 kW - 50 kW kana kupfuura
Nguva yekutumira: Feb-13-2025
