Tam sim no, muaj ntau yam PCB pawg thawj coj saib nyob rau hauv kev ua lag luam nyob rau hauv dazzling ntau yam xim. Ntau yam PCB pawg thawj coj saib xim yog ntsuab, dub, xiav, daj, ntshav, liab thiab xim av, qee cov tuam txhab tseem tsim cov xim dawb, paj yeeb thiab lwm yam xim sib txawv ntawm PCB.

Cov xim sib txawv PCB pawg thawj coj qhia

Nws feem ntau ntseeg tias PCB dub zoo li tau muab tso rau ntawm qhov kawg, thaum liab, daj thiab lwm yam tau tshwj tseg rau qhov kawg. Puas muaj tseeb?

Hauv PCB ntau lawm, txheej tooj liab, txawm tias ua los ntawm kev ntxiv lossis rho tawm, xaus nrog qhov du thiab tsis muaj kev tiv thaiv. Txawm hais tias cov khoom siv tshuaj lom neeg ntawm tooj liab tsis muaj zog npaum li txhuas, hlau, magnesium thiab lwm yam, tab sis nyob rau hauv cov dej, cov tooj liab ntshiab thiab cov pa sib cuag tau yooj yim oxidized; Vim tias muaj cov pa oxygen thiab dej ua pa hauv huab cua, cov nplaim tooj liab ntshiab yuav oxidize sai thaum tiv nrog huab cua. Vim tias cov tuab txheej tooj liab hauv PCB pawg thawj coj yog tuab heev, cov tooj liab oxidized yuav dhau los ua cov khoom siv hluav taws xob tsis zoo, uas yuav ua rau muaj kev puas tsuaj rau hluav taws xob ntawm tag nrho PCB.

Txhawm rau tiv thaiv tooj liab oxidation, txhawm rau cais qhov welded thiab tsis txuas ntawm PCB thaum lub sijhawm siv vuam, thiab txhawm rau tiv thaiv lub ntsej muag ntawm PCB pawg thawj coj, cov kws tsim qauv tsim tsim txheej tshwj xeeb. Cov txheej no tuaj yeem siv tau yooj yim rau saum npoo ntawm PCB pawg thawj coj, tsim cov txheej tiv thaiv ntawm qee qhov tuab thiab thaiv kev sib cuag ntawm tooj liab thiab cua. Cov txheej txheej txheej no hu ua solder thaiv thiab cov khoom siv yog cov xim thaiv.

Yog tias nws hu ua xim, nws yuav tsum yog xim txawv. Yog, cov xim nyoos nyoos tuaj yeem ua tsis muaj xim thiab pob tshab, tab sis PCBS feem ntau xav tau luam cov ntawv me me ntawm lub rooj tsavxwm kom yooj yim kho thiab tsim khoom. Cov xim pleev xim tsis zoo tuaj yeem tsuas yog qhia pom PCB keeb kwm yav dhau, yog li txawm tias tsim khoom, kho lossis muag, cov tsos tsis zoo txaus. Yog li cov kws tsim khoom ntxiv ntau yam xim rau cov laug tiv xim, ua rau dub lossis liab lossis xiav PCBS. Txawm li cas los xij, nws nyuaj rau pom cov xov tooj ntawm PCB dub, yog li yuav muaj qee qhov nyuaj hauv kev saib xyuas.

Los ntawm qhov pom ntawm no, PCB pawg xim thiab PCB zoo tsis muaj kev sib raug zoo. Qhov sib txawv ntawm PCB dub thiab PCB xiav, PCB daj thiab lwm yam xim PCB nyob hauv cov xim ntawm cov xim tsis kam ntawm txhuam zaum kawg. Yog tias PCB tau tsim thiab tsim tawm zoo ib yam, cov xim yuav tsis muaj kev cuam tshuam rau kev ua haujlwm, thiab nws yuav tsis muaj kev cuam tshuam rau kev tshav kub. Raws li rau cov PCB dub, nws cov kab thaiv sab nrauv yuav luag tag, uas ua rau muaj teeb meem loj rau kev saib xyuas tom qab, yog li nws tsis yooj yim heev rau kev tsim thiab siv cov xim. Yog li ntawd, nyob rau xyoo tsis ntev los no, tib neeg maj mam hloov kho, tso tseg kev siv cov xim pleev xim dub, siv xim ntsuab tsaus, xim av tsaus nti, xim xiav tsaus thiab lwm yam xim pleev xim, lub hom phiaj yog pab txhawb kev tsim khoom thiab kev saib xyuas.

Hais txog qhov twg, peb tau nkag siab qhov teeb meem ntawm PCB xim. Raws li qhov hais tias “xim sawv cev rau qib siab lossis qib qis”, nws yog vim cov tuam txhab nyiam siv PCB dub los tsim cov khoom lag luam siab, thiab siv xim liab, xiav, ntsuab, daj thiab lwm yam khoom lag luam qis.Qhov xaus yog: cov khoom muab lub ntsiab lus xim, ntau dua li xim muab cov ntsiab lus khoom.