Dab tsi yog covPCBCov qauv tshuaj xyuas zoo li cas?
1. Ntim: tsis muaj xim tsis muaj lub hnab ntim lub tshuab nqus tsev, nrog cov desiccant hauv, nruj nreem ntim
2. Silk screen printing: silk screen luam ntawv ntawm cov cim thiab cov cim rau ntawm qhov chaw ntawm PCB yuav tsum yog qhov tseeb thiab pom tseeb, thiab cov xim yuav tsum ua raws li cov kev cai, tsis txhob rov luam tawm dua, tsis muaj luam ntawv, ntau yam luam ntawv, txoj hauj lwm sib txawv, thiab luam ntawv yuam kev.
3. Board ntug board nto: xyuas seb puas muaj stains, sundries, pits, tin slag residues ntawm PCB nto; seb lub board nto yog khawb thiab raug rau lub substrate; Muaj cov txheej, thiab lwm yam.
4. Conductors: Tsis muaj luv luv Circuit Court, qhib Circuit Court, raug tooj liab nyob rau hauv tus neeg xyuas pib, ntab tooj liab ntawv ci, txuas ntxiv, thiab lwm yam Pads: Cov ntaub qhwv yuav tsum tau sib npaug tinned, thiab tooj liab yuav tsum tsis txhob raug, puas, tev tawm, deformed, thiab lwm yam. Kub ntiv tes: luster, pob / npuas, stains, tooj liab ntawv ci ntab, txheej txheej, burrs, plating adhesion, thiab lwm yam.
5. Qhov: Txheeb xyuas cov txheej txheem dhau los ntawm cov PCBs zoo los xyuas seb puas muaj cov tho qhov ploj lawm, ntau qhov tho qhov, thaiv qhov, thiab qhov sib txawv. Solder mask: Koj tuaj yeem siv lub tshuab ntxhua khaub ncaws los so thaum lub sijhawm kuaj xyuas nws cov adhesion, xyuas seb nws puas yuav poob, seb puas muaj npuas, seb puas muaj qhov tshwm sim kho, thiab lwm yam. Cov xim ntawm lub npog ntsej muag yuav tsum ua raws li cov kev cai. .
6. Kos cim: tus cwj pwm, siv taw tes, qauv qauv, ntsuas hluav taws kub / UL. qauv, hluav taws xob xeem tshooj, chaw tsim khoom lub npe, hnub tsim khoom, thiab lwm yam.
7. Kev ntsuas qhov loj me: ntsuas seb qhov loj npaum li cas ntawm cov khoom PCB tuaj raws li tau teev tseg hauv qhov kev txiav txim.
Warpage lossis curvature soj ntsuam:
8. Solderability test: Siv ib feem ntawm PCB rau qhov tseeb soldering, thiab xyuas seb cov khoom puas tuaj yeem yooj yim soldered.
Post lub sij hawm: Apr-12-2023