PCB tsis yog tsuas yog qhov tseem ceeb tshaj plaws kev txhawb nqa kho rau txuas, txuas, thiab sib sau ua ke ntau yam khoom, cov khoom sib txuas thiab cov khoom sib txuas ntawm cov khoom siv hluav taws xob, tab sis tseem ua rau cov khoom siv hluav taws xob muaj kev ntseeg siab, zoo ib yam, muaj zog siab, thiab lub cev nyhav. , Qhov me me, yooj yim rau tus qauv thiab lwm yam zoo thiab yam ntxwv ntawm cov khoom siv yooj yim. Txawm hais tias PCB tuaj yeem suav tias yog cov khoom siv thev naus laus zis hauv kev lag luam hluav taws xob, kev txhim kho PCB tsis yog tsuas yog muaj teeb meem los ntawm nws tus kheej cov teeb meem kev siv nyiaj, tab sis tseem muaj teeb meem los ntawm kev txuag hluav taws xob sab nraud thiab kev tiv thaiv ib puag ncig, tshwj xeeb tshaj yog kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig. xav tau ntawm cov khoom lag luam hluav taws xob. Cov kev xav tau ntawm zej zog. Yog li ntawd, PCB yuav tsum taug txoj kev ntawm kev txhim kho ntsuab, thiab yuav tsum tso kev txuag hluav taws xob, txo kev siv, txo cov pa tawm thiab tswj cov pa phem ntawm txoj haujlwm tseem ceeb hauv kev tsim kho kev lag luam.
Nrog txoj kev txhim kho sai ntawm kev lag luam, kev sib tw hauv PCB kev lag luam tau dhau los ua kev kub ntxhov. Kev txuag hluav taws xob thiab kev txo qis tsis yog tsuas yog siv lub teb chaws kev txuag hluav taws xob thiab txo txoj cai tso tawm, tab sis kuj yog ib qho tseem ceeb txhais tau tias rau kev lag luam kom txo nqi tsim khoom thiab txhim kho lawv cov kev sib tw. Kev txuag hluav taws xob ntawm PCB cov tuam txhab tuaj yeem tsuas yog tso siab rau kev txhim kho thev naus laus zis, tshwj xeeb yog kev tsim cov txheej txheem PCB tshiab. Txawm hais tias qhov xwm txheej tag nrho yog qhov nyuaj, nws tuaj yeem pib hauv zos thiab hloov pauv cov txheej txheem txheej txheem PCB ntev. Nws ntseeg tias kev hloov pauv ntawm&"txheej txheem ntev &"; rau hauv" txheej txheem luv" yuav muaj tseeb ua tiav kev txuag hluav taws xob. Tam sim no, peb tuaj yeem pib los ntawm cov hauv qab no.
Ua ntej, peb yuav tsum siv zog los txuas ntxiv txhawb nqa digital inkjet tshuab luam ntawv los hloov kev tshuaj ntsuam luam ntawv, thiab siv 3D tshuab thev naus laus zis los hloov cov etching ntawm PCB hluav taws xob hluav taws xob. Qhov no yuav yog ib txoj hauv kev rau cov tuam txhab PCB kom ua tiav kev txuag hluav taws xob.
Qhov thib ob, txhawb nqa lub zog cua kom txuag lub zog. Cov cua txias yog qhov siv dav tshaj plaws hauv cov tuam txhab PCB. Kev siv hluav taws xob ntawm cov cua hauv cov neeg tsim khoom feem ntau suav txog 20% -35% ntawm txhua lub zog siv. Tsom ntsoov rau kev txuag hluav taws xob ntawm huab cua uas muaj cua tuaj yeem ua rau PCB kev lag luam' kev txuag hluav taws xob ua haujlwm tau txais ob zaug nrog qhov ua haujlwm ib nrab.
Thib peb, nce kev siv zog los ntsuas qhov ua tau zoo hauv PCB txheej txheem electroplating, siv lub zog txuag hluav taws xob cov khoom siv hluav taws xob, thiab txhim kho kev ua haujlwm hluav taws xob, uas tseem tuaj yeem tau txais cov txiaj ntsig txuag lub zog. Piv txwv li, hauv thaj tsam ntawm cov hlau metallization, cov tshuab electroplating ncaj qha ntawm cov yeeb yaj kiab ua yeeb yaj kiab uas tau tshwm sim hauv xyoo tas los no tau lees paub thiab siv los ntawm ntau thiab ntau lub tuam txhab. Kev siv tshuab electroplating ncaj qha ntawm zaj duab xis polymer conductive, uas suav nrog ntau yam zoo, tseem tau txais los ntawm kev ua lag luam. Nws yog siv dav. Cov txheej txheem metallization tsis muaj formaldehyde cov pa tso tawm, uas tsis tsuas yog txhim kho kev ua haujlwm ib puag ncig, tab sis kuj tsis muaj cov dej khib nyiab nyuaj, txheej txheem kho yooj yim, txuag dej thiab hluav taws xob, txo cov nqi khiav lag luam, thiab kev xa kab rov tav tau yooj yim rau siv.
Plaub, txhawb kev ua haujlwm siab thiab txuag hluav taws xob hauv cov tuam txhab PCB thiab ua cov thev naus laus zis hloov pauv ntawm PCB cov cuab yeej tsim khoom. Cov koom haum kev lag luam tuaj yeem ua tus coj hauv kev qhia cov tuam txhab pabcuam kev txuag hluav taws xob thiab cov tsev haujlwm, thiab hloov kho cov qauv kev txuag hluav taws xob, uas cia siab tias yuav ua tiav lub zog txuag hluav taws xob li ntawm 20%.
Tam sim no, kev tsim khoom huv ntawm PCB kev lag luam tau pib, tab sis nws tseem xav tau mus rau tom ntej tsis tu ncua. Ua ntej tshaj, qhov tseem ceeb tshaj plaws yog kom ntseeg tau tias cov dej tso pov tseg ua tau raws tus qauv txhua lub sijhawm, thiab txhua qhov ntsuas xws li PH, Cu, Ni, COD, thiab ammonia nitrogen yuav tsum ua tau raws cov qauv 24 teev nyob rau ib hnub, 365 hnub hauv ib xyoos. Txhua lub tuam txhab PCB yuav tsum muaj kev nkag siab txog kev ua raws cai, kev ncaj ncees, thiab kev tiv thaiv ib puag ncig. Qhov thib ob, ua cov dej khib nyiab rov ua dua tshiab. Nws yog qhov tsim nyog los tsim cov qauv rau kev siv cov dej khib nyiab rov qab thiab nruj me ntsis xav tau kev faib ua feem ntawm cov dej khib nyiab kho kom raug xa rov qab mus rau cov kab tsim khoom siv. Thib peb, tswj hwm qhov teeb meem ntawm cov pa phem hnyav hauv PCB ntau lawm, kho cov tooj liab thiab me me ntawm npib tsib xee hauv cov dej tso tawm raws li cov qauv kev tiv thaiv ib puag ncig, txo cov ntsiab lus tooj liab thiab npib tsib xee hauv cov dej tso tawm, thiab txhawb nqa siv ob qho no hauv cov dej khib nyiab. Hom hlau no tau tsim thiab ua tiav rau hauv cov av nkos, uas yog siv los ua cov khoom siv raw ntawm cov zom kom paub cov khoom pov tseg. Plaub, ntxiv dag zog rau kev koom tes nrog cov kws tsim tshuaj pleev los tsim cov tshuaj zoo rau ib puag ncig; vim hais tias ib puag ncig tus phooj ywg cov tshuaj muaj kuab paug tso pa tsawg dua, dej pov tseg, thiab pov tseg, lawv yooj yim los lis, thiab ib puag ncig ua haujlwm yog tus phooj ywg, thiab kev noj qab haus huv ntawm cov neeg ua haujlwm kuj tseem muaj kev tiv thaiv ntau dua. Thib tsib, koom tes nrog cov tuam txhab tshuab hluav taws xob thiab tshuab hluav taws xob kom ua haujlwm zoo hauv kev txwv kev siv cov khoom phom sij hauv cov khoom (RoHS).
Feem ntau, kev tsim kho ntawm PCB kev lag luam vam khom thev naus laus zis thiab kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig, tab sis kev txuag hluav taws xob tam sim no thiab kev tiv thaiv ib puag ncig tseem ceeb dua rau kev lag luam PCB, thiab tseem cuam tshuam ncaj qha rau kev muaj sia nyob ntawm qee lub tuam txhab. Qhov ua tiav ntawm kev tsim khoom ntsuab hauv PCB kev lag luam tsis tuaj yeem ua tiav hmo ntuj. Nws yuav tsum raug suav hais tias yog kev txhim kho kev coj ua ntawm kev lag luam thiab siv zog txhawb nws; qhov no xav tau kev txhawb nqa kev cai lij choj thiab kev tswj hwm, kev taw qhia cov cai, tsim cov qauv thiab cov cai, thiab tsim kom muaj huab cua ntawm lub luag haujlwm kev sib raug zoo hauv zej zog; Nyob rau tib lub sijhawm, cov koom haum kev lag luam yuav tsum tau ua lub luag haujlwm, koom ua ke, ua lag luam, koom tes nrog txhua lwm yam, thiab txhim kho hauv kev sib koom tes; thaum kawg, lawv yuav tsum ua raws txoj cai kev ua lag luam thiab ua lub luag haujlwm ntawm cov txheej txheem kev lag luam hauv kev faib cov peev txheej.