Lub rooj tsavxwm PCB yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob, thiab cov roj ntsuab ua lub luag haujlwm tseem ceeb hauv kev rwb thaiv tsev, kev tiv thaiv, thiab kev sib txuas.
Cov khoom ntawm PCB ntsuab roj feem ntau muaj xws li resin, curing agent, thiab pigment. Resin plays lub luag haujlwm tiv thaiv thiab tiv thaiv cov roj ntsuab, cov tshuaj tua kab mob yog siv los kho cov resin, thiab pigments muab cov roj ntsuab xim. Qhov tsim nyog tus nqi ntawm cov khoom no yog tus yuam sij rau kev ruaj ntseg ntawm cov roj ntsuab kev ua haujlwm.
Thaum cov roj ntsuab yaj, nws cov khoom yog decomposed, diffused, los yog puas. Feem ntau ua rau cov roj ntsuab dissolution muaj xws li tshuaj corrosion, lub cev puas tsuaj, thiab kub hloov. Cov yam ntxwv no tuaj yeem ua rau muaj kev hloov pauv ntawm cov roj ntsuab, yog li cuam tshuam rau nws txoj haujlwm.
Nqe lus thib plaub: Tshuaj lom neeg corrosion yog ib qho ntawm feem ntau ua rau cov roj ntsuab dissolution. Cov tshuaj tiv thaiv corrosion tuaj yeem ua rau cov khoom siv molecular chains hauv cov roj ntsuab, ua rau nws poob nws txoj haujlwm tiv thaiv thiab insulating. Kev puas tsuaj rau lub cev xws li kev khawb, kev cuam tshuam, thiab lwm yam tuaj yeem ua rau ib nrab lossis tag nrho cov roj ntsuab tawg, yog li cuam tshuam rau lub neej kev pab cuam ntawm PCB boards.
Kab lus thib tsib: Kev hloov pauv kub kuj muaj feem cuam tshuam rau kev tawg ntawm cov roj ntsuab. Thaum qhov kub thiab txias, cov khoom hauv cov roj ntsuab yuav tsis ruaj khov, ua rau cov roj ntsuab yaj. Yog li ntawd, nyob rau hauv daim ntawv thov txheej txheem ntawm PCB boards, nws yog ib qhov tsim nyog yuav tau them sai sai rau kev tswj ntawm ib puag ncig kub kom ntseeg tau cov stability thiab kev cia siab ntawm cov roj ntsuab.
Zuag qhia tag nrho, cov roj ntsuab ua lub luag haujlwm tseem ceeb hauv PCB cov laug cam, thiab nws qhov muaj pes tsawg leeg thiab kev sib cais yog qhov tseem ceeb rau kev ua kom zoo thiab ua haujlwm ntawm PCB boards. Kev nkag siab txog qhov muaj pes tsawg leeg thiab kev sib cais ntawm cov roj ntsuab tuaj yeem pab peb xaiv cov qauv tsim nyog thiab cov txheej txheem ntau lawm, yog li txhim kho qhov zoo thiab ruaj khov ntawm PCB boards.