1.What bụ PCB Electroplating?
PCB electroplating na-ezo aka na usoro idobe oyi akwa metal n'elu PCB iji nweta njikọ eletriki, nnyefe mgbaàmà, nkwụsị ọkụ, na ọrụ ndị ọzọ. Omenala DC electroplating na-ata ahụhụ site na nsogbu ndị dị ka mkpuchi mkpuchi na-adịghị mma, ịdị omimi na-ezughị ezu, na mmetụta ihu, na-eme ka ọ sie ike izute ihe nrụpụta PCB dị elu dị ka bọọdụ High-Density Interconnect (HDI) na Mgbanwe Ebipụtara (FPC). Ihe na-enye ọkụ na-agbanwe ugboro ugboro dị elu na-atụgharị ike AC ka ọ bụrụ AC dị elu, nke a na-edozizi ma na-enyocha ya iji mepụta DC kwụsiri ike ma ọ bụ pulsed ugbu a. Ugboro ha na-arụ ọrụ nwere ike iru iri ma ọ bụ ọbụna narị kilohertz, karịrị ike ugboro (50/60Hz) nke ike ọkụ DC ọdịnala. Njiri mara elu-ugboro a na-eweta ọtụtụ uru na PCB electroplating.
2.Advantages nke High-Frequency Switching Power Supplies in PCB Electroplating
Ịdị mma mkpuchi mkpuchi: "Mmetụta akpụkpọ ahụ" nke oke mmiri na-eme ka ọ dị ugbu a na-etinye uche na elu nke onye nduzi, na-emeziwanye otu mkpuchi mkpuchi nke ọma na ibelata mmetụta ihu. Nke a bara uru karịsịa maka ịkwanye ihe owuwu dị mgbagwoju anya dị ka ahịrị ọma na oghere micro.
Enwetara ike ịkwanye omimi miri emi: Ọgba mmiri dị elu nwere ike ịbanye n'ime mgbidi oghere, na-abawanye ọkpụrụkpụ na ịdị n'otu nke plating n'ime oghere, nke na-emezu ihe ndị a chọrọ maka plating maka oke akụkụ vias.
Ịbawanye arụmọrụ Electroplating: Njirimara nzaghachi ngwa ngwa nke ọkụ ọkụ na-agbanwe ugboro ugboro na-eme ka njikwa dị ugbu a dịkwuo mma, na-ebelata oge ịkwanye na ịba ụba mmepụta ihe.
Oriri ike belatara: ọkụ ọkụ na-agbanwe ugboro ugboro nwere oke ngbanwe dị elu yana oriri ume dị ala, na-adakọ na usoro nke nrụpụta akwụkwọ ndụ akwụkwọ ndụ.
Pulse Plating Capability: Igwe ọkụ na-agbanwe ọkụ dị elu nwere ike ịpụta ngwa ngwa pulsed ugbu a, na-eme ka pulse electroplating. Pulse plating na-eme ka mma mkpuchi dịkwuo mma, na-abawanye njupụta mkpuchi, na-ebelata porosity, ma na-ebelata iji ihe mgbakwunye.
3. Ihe Nlereanya nke Ngwa inyefe ike na-agbanwe ugboro ugboro na PCB Electroplating
A. Ọla kọpa plating: Ọla kọpa electroplating na-eji na PCB n'ichepụta na-etolite conductive oyi akwa nke sekit. Ndị na-agbanwe agbanwe ugboro ugboro dị elu na-enye njupụta dị ugbu a nke ọma, na-ahụ na ntinye akwa ọla kọpa edo edo na-emeziwanye ogo na arụmọrụ nke oyi akwa ahụ.
B. Ngwọta Elu: Ngwọta dị n'elu PCB, dị ka platinte ọla edo ma ọ bụ ọlaọcha, chọkwara ike DC kwụsiri ike. Ndị na-eme mgbanwe mgbanwe dị elu nwere ike inye ihe ziri ezi ugbu a na voltaji maka metal plating dị iche iche, na-eme ka ọ dị nro na nguzogide corrosion nke mkpuchi.
C. Chemical Plating: A na-eme plating kemịkalụ na-enweghị ugbu a, mana usoro ahụ nwere ihe siri ike chọrọ maka okpomọkụ na njupụta ugbu a. Ndị na-eme mgbanwe mgbanwe dị elu nwere ike inye ike inyeaka maka usoro a, na-enyere aka ịchịkwa ọnụego plating.
4.Olee otú iji chọpụta PCB Electroplating Power Supply Specifications
Nkọwa nke ọkụ ọkụ DC achọrọ maka PCB electroplating dabere n'ọtụtụ ihe, gụnyere ụdị usoro electroplating, nha PCB, ebe plating, ihe njupụta ugbu a chọrọ, yana nrụpụta nrụpụta. N'okpuru bụ ụfọdụ isi paramita na nkọwa ọkọnọ ọkụ nkịtị:
A. Nkọwapụta ugbu a
● Njupụta dị ugbu a: Njupụta dị ugbu a maka PCB electroplating na-abụkarị site na 1-10 A / dm² (ampere kwa square decimeter), dabere na usoro electroplating (dịka ọmụmaatụ, platin ọla kọpa, platin ọla edo, nickel plating) na mkpuchi chọrọ.
●Mkpokọta ihe achọrọ ugbu a: A na-agbakọ ihe achọrọ ugbu a dabere na mpaghara PCB na njupụta dị ugbu a. Ọmụmaatụ:
Ọ bụrụ na PCB plating ebe bụ 10 dm² na nke ugbu a njupụta bụ 2 A/dm², ngụkọta ugbu a chọrọ ga-20 A.
Maka nnukwu PCB ma ọ bụ mmepụta oke, enwere ike ịchọ ọtụtụ narị ampere ma ọ bụ ọbụna nsonaazụ dị ugbu a.
Ọnụọgụ a na-ahụkarị ugbu a:
●Obere PCB ma ọ bụ ụlọ nyocha: 10-50 A
● Mmepụta PCB dị ọkara: 50-200 A
● Nnukwu PCB ma ọ bụ mmepụta oke: 200-1000 A ma ọ bụ karịa
Nkọwapụta B.Voltaji
PCB electroplating n'ozuzu chọrọ ala voltaji, a na nso nke 5-24 V.
⬛Voltage chọrọ dabere na ihe ndị dị ka nguzogide nke plating bath, anya n'etiti electrodes, na conductivity nke electrolyte.
Maka usoro pụrụ iche (dịka ọmụmaatụ, pulse plating), enwere ike ịchọrọ oke voltaji dị elu (dịka 30-50 V).
Ogo voltaji nkịtị:
● Standard DC electroplating: 6-12 V
●Pulse plating ma ọ bụ usoro pụrụ iche: 12-24 V ma ọ bụ karịa
Ụdị Nnyefe Ike
●DC Power Supply: Eji ya maka omenala DC electroplating, na-enye kwụsiri ike ugbu a na voltaji.
●Pulse Power Supply: A na-eji ya maka electroplating pulse, nke na-enwe ike ịmepụta oke ọkụ ọkụ na-eme ka ọ dịkwuo mma iji meziwanye àgwà nke plating.
● Igwe ọkụ na-agbanwe agbanwe nke ukwuu: Ịrụ ọrụ dị elu na nzaghachi ngwa ngwa, kwesịrị ekwesị maka ihe ndị chọrọ electroplating dị elu.
C. Ike inye ike
A na-ekpebi ike inye ike (P) site na ugbu a (I) na voltaji (V), na usoro: P = I × V.
Dịka ọmụmaatụ, ọkụ ọkụ nke na-emepụta 100 A na 12 V ga-enwe ike nke 1200 W (1.2 kW).
Oke ike nkịtị:
●Obere akụrụngwa: 500 W - 2 kW
● Ngwá ọrụ dị ọkara: 2 kW - 10 kW
● Nnukwu akụrụngwa: 10 kW - 50 kW ma ọ bụ karịa
Oge nzipu: Feb-13-2025
