KODI KUSINTHA KWA MPIRA WA SOLDER NDI CHIYANI?

Mpira wa solder ndi chimodzi mwazowonongeka zodziwika bwino zomwe zimapezeka mukamagwiritsa ntchito ukadaulo wokwera pamwamba pa bolodi losindikizidwa. Mogwirizana ndi dzina lawo, iwo ndi mpira wa solder womwe walekanitsidwa ndi thupi lalikulu lomwe limapanga zophatikizira zophatikizira pamwamba pazigawo za board.

Mipira ya Solder ndi zinthu zochititsa chidwi, kutanthauza kuti ngati azungulira pa bolodi losindikizidwa, amatha kuyambitsa akabudula amagetsi, zomwe zimasokoneza kudalirika kwa bolodi losindikizidwa.

PaIPC-A-610, PCB yokhala ndi mipira yopitilira 5 yogulitsira (<=0.13mm) mkati mwa 600mm² ili ndi vuto, chifukwa m'mimba mwake yokulirapo kuposa 0.13mm imaphwanya mfundo yovomerezeka yamagetsi. Komabe, ngakhale malamulowa akunena kuti mipira yogulitsira imatha kusiyidwa ngati yakhazikika bwino, palibe njira yeniyeni yodziwira ngati ili.

MMENE MUNGAKONZE MABILA OGULITSIRA ASANACHITIKE

Mipira ya solder imatha kuyambitsidwa ndi zinthu zosiyanasiyana, zomwe zimapangitsa kuzindikira vutolo kukhala kovuta. Nthawi zina, amatha kukhala mwachisawawa. Nazi zochepa mwa zifukwa wamba solder mipira mawonekedwe mu ndondomeko PCB msonkhano.

Chinyezi-Chinyezichakhala chimodzi mwazinthu zazikulu kwambiri za opanga ma board osindikizidwa masiku ano. Kupatula pa ma popcorn effect ndi kusweka kwa microscopic, kungayambitsenso mipira ya solder kupanga chifukwa chothawa mpweya kapena madzi. Onetsetsani kuti matabwa osindikizidwa amawumitsidwa bwino musanagwiritse ntchito solder, kapena kusintha kusintha chinyezi m'malo opangira zinthu.

Solder Paste- Mavuto mu solder phala palokha angathandize kuti mapangidwe solder mpira. Chifukwa chake, sikulangizidwa kuti mugwiritsenso ntchito solder phala kapena kulola kugwiritsa ntchito solder phala kudutsa tsiku lake lotha ntchito. Phala la solder liyenera kusungidwa bwino ndikusamalidwa motsatira malangizo a wopanga. Madzi soluble solder phala angathandizenso kuti chinyezi chochuluka.

Mapangidwe a Stencil- Solder mpira ukhoza kuchitika pamene stencil yatsukidwa molakwika, kapena pamene stencil yasindikizidwa molakwika. Choncho, kudaliraodziwa kusindikizidwa dera bolodi nsalundi nyumba ya msonkhano ingakuthandizeni kupewa zolakwika izi.

Reflow Kutentha Mbiri- Chosungunulira chosungunuka chiyenera kusungunuka pamlingo woyenera. Amkulu-mmwambakapena chisanadze kutentha mlingo kungachititse kuti mapangidwe solder balling. Kuti muthetse izi, onetsetsani kuti njira yokwererapo ndi yosakwana 1.5°C/sekondi kuchokera pa kutentha kwapakati kufika pa 150°C.

KUCHOTSA MPIRA WA SOLDER

Utsi mu kachitidwe mpweyandi njira yabwino kwambiri yochotsera kuipitsidwa kwa mpira wa solder. Makinawa amagwiritsa ntchito ma nozzles a mpweya wothamanga kwambiri omwe amachotsa mokakamiza mipira ya solder pamwamba pa bolodi yosindikizidwa chifukwa cha kuthamanga kwawo kwakukulu.

Komabe, mtundu uwu wa kuchotsa si ogwira pamene muzu zimachokera ku misprinted PCBs ndi chisanadze reflow solder phala nkhani.

Chotsatira chake, ndi bwino kuti azindikire chomwe chimayambitsa mipira ya solder mwamsanga, chifukwa njirazi zingathe kusokoneza kupanga ndi kupanga PCB yanu. Kupewa kumapereka zotsatira zabwino kwambiri.

LULUBANI KUSINTHA KWA IMAGINEERING INC

Ku Imagineering, timamvetsetsa kuti chidziwitso ndi njira yabwino kwambiri yopewera zovuta zomwe zimabwera pamodzi ndi kupanga PCB ndi kusonkhana. Timapereka zabwino kwambiri zodalirika pamasewera ankhondo ndi zakuthambo, ndipo timapereka kusintha mwachangu pakujambula ndi kupanga.

Kodi mwakonzeka kuwona kusiyana kwa Imagineering?Lumikizanani nafe lerokuti tipeze mtengo pamapangidwe athu a PCB ndi njira zophatikizira.