GudahaPCBhabka alxanka iyo habka alxanka, soo saarayaasha chip SMT waxay leeyihiin shaqaale ama macaamiil badan oo ku lug leh hawlaha, sida galinta plug-in, ICT test, PCB kala goynta, gacanta PCB alxanka hawlgallada, fur ku dhejinta, rivet dhajinta, crimp xiriiriyaha cidhiidhi cadaadis, PCB baaskiil, etcHaddaba maxay tani u keenaysaa cillad?Tafatirahayagu ha kuu sharaxo maanta!
Khatarta ay leedahay hayntaPCBlooxa hal gacan:
(1) Ku haysashada looxa PCB hal gacan ayaa guud ahaan loo ogol yahay looxyada wareegyada leh cabbir yar, miisaan fudud, aan lahayn BGA iyo aan lahayn awood jajab ah;laakiin kuwa wareegyada leh cabbir weyn, miisaan culus, BGA iyo capacitors chip on loox dhinaca, taas oo hubaal ah in laga fogaado.Sababtoo ah dabeecadda noocan oo kale ah waxay si fudud u sababi kartaa kala-goysyada alxanka ee BGA, awoodda chip iyo xitaa caabbinta chip inay guuldareysato.Sidaa darteed, dukumeentiga geeddi-socodka, shuruudaha sida loo qaato guddiga wareegga waa in la tilmaamaa.
Qaybta ugu fudud ee hal gacan lagu haysto PCB waa habka wareegga wareegga wareegga.Haddi laga soo saaro looxa suunka wax qaada ama la dhigo looxa, dadka intooda badan si miyir la'aan ah ayey u qaataan dhaqanka ah in PCB ay hal gacan ku qabtaan sababtoo ah waa tan ugu habboon.Marka gacanta lagu iibinayo, ku dheji hiitarka oo rakib furayaasha.Si aad u dhamaystirto qaliinka, waxa aad si dabiici ah u isticmaali doontaa hal gacan si aad ugu shaqayso alaabta kale ee shaqada ee looxa.Hawlgalladan u muuqda kuwo caadi ah ayaa inta badan qariya khataro tayo sare leh.
(2) Ku rakib boolal.Warshado badan oo SMT ah oo farsameeya chips, si loo badbaadiyo kharashaadka, qalabaynta waa laga tagay.Marka boolal lagu rakibo PCBA-da, qaybaha ku yaal dhabarka PCBA-ga inta badan way qallafsan yihiin sinnaan la'aanta awgeed, wayna fududahay in la jebiyo kala-goysyada alxanka ee xasaasiga ah.
(3) Gelida qaybaha daloolka
Qaybaha daloolka, gaar ahaan transformers-ka leh hogaan qaro weyn, badanaa way adagtahay in si sax ah loo geliyo godadka kor u kaca sababtoo ah dulqaadka booska weyn ee hogaanka.Hawl-wadeenadu iskuma dayi doonaan inay helaan hab sax ah, badanaa waxay adeegsadaan hawl-saxaafadeed adag, taas oo keeni doonta foorar iyo qalooc ku yimaada guddiga PCB-ga, waxayna sidoo kale dhaawac u geysan doontaa qalabka ku xeeran capacitors, resistors, iyo BGA.