PCB tsim thiab cov txheej txheem ntau lawm muaj ntau li 20 cov txheej txheem,Pheej YiasNtawm Circuit Court Board yuav ua rau xws li kab sandhoole, hlau vau, kab hniav aub, qhib Circuit Court, kab xuab zeb txoj kab; Pore ​​tooj liab nyias loj loj qhov tsis tooj liab; Yog hais tias lub qhov tooj liab liab yog loj, lub qhov tooj liab tsis muaj tooj liab; Detin tsis huv (rov qab cov txheej tin Yog li ntawd, hauv PCB kev lag luam, nws yog ib qho tseem ceeb kom nkag siab txog cov laj thawj tsis zoo

Cov tsos ntawm kev ua tsis zoo tin yog feem ntau cuam tshuam nrog kev nyiam huv ntawm pcb khoob pawg thawj coj. Yog tias tsis muaj cov kuab paug, yuav tsis muaj kev tsis zoo tin. Thib ob, tus solder nws tus kheej yog tsis zoo, kub thiab lwm yam. Tom qab ntawd cov ntawv luam tawm Circuit Court Board yog qhov kev xav hauv cov ntsiab lus hauv qab no:

1. Muaj cov particle impurities nyob rau hauv lub phaj txheej, los yog muaj kev sib tsoo hais tseg sab laug rau saum npoo ntawm kab kev tsim khoom ntawm substrate.

2. Board nrog grease, impurities thiab lwm yam sundries, lossis muaj silicone roj residue

3. Lub phaj nto muaj cov hluav taws xob hluav taws xob ntawm cov tin, lub phaj saum npoo txheej muaj cov partle impurities.

4. Lub peev txheej muaj cov txheej txheem yog ntxhib, muaj phaj kub tshwm sim tshwm sim, phaj phaj tsis nyob ntawm lub tin ..

5. Tus Tin Degion Oxidation thiab tooj liab nplaim npub ntawm cov substrate lossis ntu yog loj.

6. Ib sab ntawm txheej tiav lawm, lwm sab ntawm txheej tsis zoo, tsis muaj peev xwm sab muaj pom tseeb kaj tshwm sim tshwm sim.

7. Cov qhov muaj peev xwm tsawg muaj qhov pom tseeb ci tshwm sim tshwm sim, muaj peev xwm ua kom muaj qhov sib dhos, muaj cov phaj loj.

8. Cov txheej txheem vuam tsis ntseeg tau tias muaj qhov kub thiab txias, lossis qhov siv tau

9. Thaj chaw muaj peev xwm tsawg tsis tuaj yeem tsis tuaj yeem ua rau thaj chaw xim liab lossis xim liab lossis xim liab, ib sab ntawm cov txheej ua tiav, ib sab ntawm txheej tsis zoo