Nrog rau kev txhim kho tas mus li thiab kev vam meej ntawm cov khoom siv hluav taws xob niaj hnub siv tshuab, cov khoom siv hluav taws xob tau maj mam txhim kho mus rau cov kev taw qhia ntawm lub teeb, nyias, me me, tus kheej, kev ntseeg siab thiab ntau yam haujlwm. Aluminium PCB tau yug los raws li qhov sib txawv no. Aluminium PCB tau dav siv nyob rau hauv hybrid integrated circuits, tsheb, chaw ua hauj lwm automation, high-power hluav taws xob cov cuab yeej, cov khoom siv fais fab thiab lwm yam kev lag luam nrog zoo heev kub dissipation, zoo machinability, seem stability thiab hluav taws xob kev ua tau zoo.
ProcessFqisof AluminiumPCB
Txiav → drilling qhov → qhuav zaj duab xis lub teeb pom kev → tshuaj ntsuam phaj → etching → corrosion tshuaj ntsuam → ntsuab soldermask → silkscreen → ntsuab tshuaj ntsuam → tin spraying → aluminium puag nto kho → xuas nrig ntaus phaj → kawg tshuaj ntsuam → ntim → xa khoom
Cov ntawv rau aluminiumpcb ua:
1. Vim yog tus nqi siab ntawm cov khoom siv raw, peb yuav tsum tau them sai sai rau cov qauv kev ua haujlwm hauv cov txheej txheem tsim khoom los tiv thaiv kev poob thiab pov tseg los ntawm kev ua haujlwm tsis raug.
2. Qhov hnav tsis kam ntawm qhov chaw ntawm aluminium pcb yog qhov tsis zoo. Cov neeg ua haujlwm ntawm txhua tus txheej txheem yuav tsum hnav cov hnab looj tes thaum ua haujlwm, thiab coj lawv maj mam kom tsis txhob khawb qhov chaw ntawm lub phaj thiab lub hauv paus aluminium.
3. Txhua qhov kev sib txuas ntawm kev ua haujlwm yuav tsum hnav cov hnab looj tes kom tsis txhob kov thaj tsam zoo ntawm aluminium pcb nrog ob txhais tes kom ruaj ntseg ntawm kev tsim kho tom qab.
Cov txheej txheem tshwj xeeb ntws ntawm aluminium substrate (ib feem):
1. Txiav
l 1). Ntxiv dag zog rau kev tshuaj xyuas cov khoom siv (yuav tsum siv txhuas nto nrog cov ntawv tiv thaiv zaj duab xis) kom ntseeg tau tias muaj kev ntseeg siab ntawm cov khoom tuaj.
l 2). Tsis xav tau lub phaj ci tom qab qhib.
l 3). Kov maj mam thiab xyuam xim rau kev tiv thaiv ntawm aluminium puag nto (tiv thaiv zaj duab xis). Ua haujlwm zoo ntawm kev tiv thaiv tom qab qhib cov khoom.
2. Drilling qhov
l Drilling tsis yog tib yam li cov ntawv FR-4.
l Aperture kam rau ua yog nruj heev, 4OZ Cu them sai sai rau kev tswj cov tiam ntawm pem hauv ntej.
l Drill qhov nrog tooj liab daim tawv nqaij.
3. Zaj duab xis qhuav
1) Kev tshuaj xyuas cov khoom tuaj: Cov yeeb yaj kiab tiv thaiv ntawm aluminium puag saum npoo yuav tsum tau kuaj xyuas ua ntej sib tsoo phaj. Yog tias pom muaj kev puas tsuaj, nws yuav tsum tau muab tshuaj txhuam nrog cov kua nplaum xiav ua ntej kev kho mob ua ntej. Tom qab ua tiav lawm, xyuas dua ua ntej sib tsoo phaj.
2) Sib tsoo phaj: tsuas yog tooj liab nto ua tiav.
3) Zaj duab xis: zaj duab xis yuav tsum tau siv rau ob qho tib si tooj liab thiab aluminium puag nto. Tswj lub sijhawm nruab nrab ntawm cov phaj sib tsoo thiab cov yeeb yaj kiab tsawg dua 1 feeb kom ntseeg tau tias cov yeeb yaj kiab kub ruaj khov.
4) Clapping: Ua tib zoo saib xyuas qhov tseeb ntawm npuaj.
5) Raug: Tus pas ntsuas raug: 7 ~ 9 kis ntawm cov kua nplaum seem.
6) Kev tsim kho: siab: 20 ~ 35psi ceev: 2.0 ~ 2.6m / min, txhua tus neeg ua haujlwm yuav tsum hnav hnab looj tes ua haujlwm kom zoo, kom tsis txhob khawb cov yeeb yaj kiab tiv thaiv thiab aluminium puag nto.
4. Kev tshuaj xyuas phaj
1) Cov kab saum npoo yuav tsum tau kuaj xyuas tag nrho cov ntsiab lus raws li MI cov cai, thiab nws yog ib qho tseem ceeb heev uas yuav tsum tau ua cov kev soj ntsuam xyuas kom nruj.
2) Aluminium puag saum npoo yuav tsum tau kuaj xyuas, thiab cov yeeb yaj kiab qhuav ntawm aluminium puag saum npoo yuav tsum tsis txhob muaj zaj duab xis ntog thiab puas.
Cov ntsiab lus hais txog aluminium substrate:
A. Plate tus tswv cuab phaj kev sib txuas yuav tsum tau xyuam xim rau kev tshuaj xyuas, vim tsis muaj qhov zoo tuaj yeem muab zom dua, rau cov kua nplaum tuaj yeem khaws nrog cov ntawv xuab zeb (2000#) xuab zeb thiab tom qab ntawd coj mus zom cov phaj, kev koom tes hauv kev sib txuas ntawm lub phaj muaj feem xyuam rau kev soj ntsuam ua hauj lwm, rau cov aluminium substrate tsim nyog tus nqi tau zoo heev!
B. Nyob rau hauv cov ntaub ntawv ntawm discontinuous ntau lawm, nws yog tsim nyog los ntxiv dag zog rau kev saib xyuas kom huv si conveying thiab dej tank, thiaj li yuav ua kom paub tseeb tias tom qab ua hauj lwm stability thiab ntau lawm ceev.
