Thaum tus PCB pawg thawj coj yog nqus tau pob thiab xa khoom tom qab kev txiav txim siab ua haujlwm rau cov neeg siv khoom, thiab tom qab ntawd lub tshuab nqus khoom lag luam, thiab tom qab ntawd khaws cia tom qab txhua pob ntawm cov xaj tau ua tiav. Tos cov zaub mov xa tuaj. Yog li vim li cas thiaj ua rau PCB cov laug cam xav tau lub tshuab nqus tsev? Yuav ua li cas khaws cia tom qab nqus tsev? Ntev npaum li cas yog nws lub txee lub neej? Cov Xiaabian hauv qab no ntawm xintonglian Circuities Board cov tuam txhab tsim tswv lag luam yuav muab koj cov lus qhia luv luv.
Cov kev cia ntawm PCB Board thiab nws lub txee lub neej:
Vim li cas thiaj ua rau PCB cov laug cam xav tau lub tshuab nqus tsev? PCB Board tuam txhab tuam txhab txuas rau qhov tseem ceeb rau qhov teeb meem no. Vim tias muaj ib zaug PCB pawg thawj coj tsis tau muab ntim zoo, cov tshuaj tsuag saum npoo kub, Til Tshuaj yuav oxidize thiab cuam tshuam rau cov vuam, uas tsis muaj txiaj ntsig rau kev tsim khoom.
Yog li, yuav ua li cas khaws tus PCB pawg thawj coj? Lub Circuit Court board tsis txawv dua li lwm cov khoom lag luam, nws tsis tuaj yeem kov nrog huab cua thiab dej. Ua ntej tshaj plaws, lub tshuab nqus tsev ntawm PCB Board tsis tuaj yeem raug puas ntsoog. Thaum cov hnab, ib txheej ntawm cov yeeb yaj kiab npuas yuav tsum tau nyob ib puag ncig ntawm lub thawv. Cov dej nqus ntawm npuas zaj duab xis yog qhov zoo dua, uas ua si lub luag haujlwm zoo hauv cov khoom pov thawj noo noo. Ntawm chav kawm, noo-pov thawj-ntawv pov thawj hlaws kuj tseem tsis tseem ceeb. Tom qab ntawd txheeb lawv tawm thiab sau rau lawv. Tom qab kev khi, lub thawv yuav tsum tau sib cais los ntawm phab ntsa thiab khaws cia rau hauv qhov chaw qhuav thiab muaj cua txias kom deb ntawm av, thiab yuav tsum tau tiv thaiv los ntawm hnub ci. Qhov kub ntawm lub tsev rau khoom yog qhov zoo tshaj plaws tswj tau thaum 23 ± 3 ℃, 55 ± 10% pu. Nyob rau hauv cov kev mob no, PCB cov laug cam nrog cov kev kho mob hauv cov npoo, hluav taws xob, tshuaj txau plating tuaj yeem khaws cia rau 6 lub hlis. PCB cov laug cam nrog cov kev kho mob saum npoo xws li Immersion Tin thiab osp tuaj yeem khaws cia rau 3 lub hlis.
Rau PCB cov laug cam uas tsis tau siv rau lub sijhawm ntev, nws yog qhov zoo tshaj plaws rau Circuit Coud tuam ntxhab board tsim cov txheej txheem ntawm peb-ntawv pov thawj pleev xim rau lawv. Cov haujlwm ntawm peb-ntawv pov thawj xim tuaj yeem tiv thaiv noo noo, hmoov av thiab oxidation. Nyob rau hauv txoj kev no, lub neej cia ntawm PCB Board yuav tau nce li 9 lub hlis.