Ob leeg nruj thiab yoog raws luam tawm cov laug cam (PCBS) tau siv los txuas cov khoom siv hluav taws xob hauv ntau yam khoom siv thiab tsis yog khoom siv. Raws li lub npe qhia, PCB nruj yog lub rooj tsav xwm hauv Circuit tsim los ntawm txheej txheej txheej uas tsis tuaj yeem khoov, thaum hloov pauv PCB (tseem hu ua hloov pauv hloov tau) tau tsim los ntawm lub hauv paus hloov pauv tau uas tuaj yeem khoov, ntswj, thiab quav.

Txawm hais tias ob qho tib si thiab hloov pauv PCBS ua haujlwm tib lub hom phiaj, nws yog ib qho tseem ceeb kom nco ntsoov tias muaj ntau qhov sib txawv ntawm lawv. Cov kab hluav taws xob hloov pauv tsis yog tsuas yog khoov PCBS; lawv tau tsim tawm txawv los ntawm PCBS nruj thiab muaj ntau yam kev ua tau zoo thiab qhov tsis zoo. Kawm paub ntau ntxiv txog kev nruj thiab hloov pauv PCBS hauv qab no.

Qhov sib txawv ntawm PCB nruj thiab hloov pauv tau li cas?

Rigid PCBS, feem ntau hu ua yooj yim li PCBS, yog qhov uas neeg feem coob xav txog thaum lawv xav txog cov laug cam. Cov paib no txuas cov khoom siv hluav taws xob siv cov ntsia hlau thiab lwm yam khoom sib xyaw ua ke ntawm cov khoom siv uas tsis muaj hluav taws xob. Ntawm cov rooj sib tham hauv Circuit Court nruj, cov substrate uas tsis yog cov coj ua feem ntau muaj cov iav uas ua kom lub zog ntawm lub rooj tsavxwm muaj zog thiab muab lub zog thiab khov kho. Lub rooj tsav xwm hauv Circuit rigid muab kev txhawb nqa zoo rau kev sib dhos thiab muab cov cua sov ua kom zoo.

Hom kev sib tham ntawm pawg thawj coj no siv cov txheej txheem hloov pauv tau, xws li polyimide, txawm hais tias PCBS hloov pauv tau kuj tseem muaj cov kab mob coj los siv ntawm cov khoom siv tsis-coj ua. Lub hauv paus hloov pauv tau tso cai rau cov khoom siv hloov pauv kom tiv taus kev co, ua kom sov thiab ua rau ntau yam duab. Vim tias nws cov yam ntxwv zoo, cov khoom siv hloov pauv tau nce zuj zus siv hauv cov khoom siv hluav taws xob me me thiab tshiab.

Ntxiv rau cov khoom siv thiab kev nruj ntawm txheej txheej, qhov sib txawv tseem ceeb ntawm PCB thiab kev hloov pauv yooj yim suav nrog:

Cov khoom siv coj los siv: Vim tias cov khoom siv hloov pauv tau yuav tsum tau khoov, cov tuam txhab tsim khoom tuaj yeem siv cov tooj liab uas tau kho dua kom tsis txhob siv tooj liab.

L Cov txheej txheem tsim khoom: Cov khoom lag luam PCB yooj ywm tsis siv cov yeeb yaj kiab thaiv cov yeeb yaj kiab, tab sis siv cov txheej txheem hu ua txheej txheej, lossis txheej txheej, los tiv thaiv kev sib kis ntawm PCB yooj ywm.

Tus nqi raug: Cov kab hluav taws xob hloov pauv tau feem ntau raug nqi ntau dua li cov laug cam. Tab sis vim tias cov laug cam hloov pauv tau tuaj yeem teeb tsa hauv Qhov Chaw nruj, cov kws tsim khoom tuaj yeem txo qhov loj ntawm lawv cov khoom, yog li tsis ncaj qha txuag nyiaj.

Yuav xaiv li cas ntawm txhav thiab hloov pauv PCB

Cov laug cam tawv thiab hloov pauv tau tuaj yeem siv hauv ntau yam khoom sib txawv, txawm hais tias qee qhov kev thov tuaj yeem tau txais txiaj ntsig ntau dua los ntawm ib hom pawg thawj coj saib. Piv txwv li, PCBS txhav ua rau muaj kev nkag siab hauv cov khoom lag luam loj dua (xws li TVs thiab khoos phis tawj desktop), thaum cov khoom lag luam ntau dua (xws li cov xov tooj ntawm tes thiab thev naus laus zis hnav) xav tau cov khoom hloov pauv tau yooj yim.

Thaum xaiv ntawm PCB nruj thiab hloov pauv PCB, txiav txim siab koj li kev thov, kev lag luam nyiam pawg thawj coj saib hom, thiab cov txiaj ntsig ntawm kev siv ib hom lossis lwm yam uas yuav muaj txiaj ntsig.