Kulumikizana
Kulumikizana kwa Bridge ndi chimodzi mwazovuta zomwe zimachitika pakupanga kwa SMT.Idzayambitsa dera lalifupi pakati pa zigawo, ndipo liyenera kukonzedwa likakumana ndi kugwirizana kwa mlatho.Pali zifukwa zambiri zolumikizira mlatho
1) Mavuto amtundu wa solder phala
① Zomwe zili muzitsulo mu solder phala ndizokwera, makamaka ngati nthawi yosindikiza ndi yayitali kwambiri, ndizosavuta kuwonjezera zitsulo, zomwe zimapangitsa kuti IC pin bridging;
② Phala la solder limakhala ndi viscosity yochepa ndipo limasefukira kunja kwa solder pad pambuyo potentha;
③ Dontho la solder phala nsanja ndi losauka, ndipo limasefukira kunja kwa solder pad mutatha kutentha;
Yankho: sinthani kuchuluka kwa phala la solder kapena gwiritsani ntchito phala lapamwamba kwambiri.
2) Makina osindikizira
① Kulondola kobwerezabwereza kwa makina osindikizira kumakhala kosauka, ndipo kuyanjanitsa kwake sikulinso (kuyika kwachitsulo sikuli bwino, kuyanjanitsa kwa PCB sikwabwino), zomwe zimapangitsa kuti solder phala lisindikizidwe kunja kwa pad, makamaka pad yabwino QFP pad;
② Kukula ndi makulidwe a zenera la template sizinapangidwe moyenera, ndipo zokutira za Sn Pb alloy za PCB pad siyunifolomu, zomwe zimatsogolera ku phala la solder.
Yankho: sinthani chosindikizira ndikuwongolera zokutira za PCB pad.
3) Ndi chifukwa chodziwika bwino pakupanga kuti phala la solder limatha kutulutsa pambuyo pokakamizidwa kwambiri.Kuonjezera apo, ngati kuyika kulondola sikukwanira, zigawozo zidzasuntha ndipo mapini a IC adzawonongeka.
4) Kuwotcha kwa ng'anjo ya reflow ndikothamanga kwambiri, zosungunulira mu solder phala alibe nthawi volatilize.
Yankho: sinthani kutalika kwa Z axis ya SMT ndi kutentha kwa ng'anjo yobwereranso.
Nkhani ndi zithunzi zochokera pa intaneti, ngati kuphwanya kulikonse pls lemberani kuti tifufute.
NeoDen imapereka mayankho athunthu a mzere wa SMT, kuphatikiza uvuni wa SMT reflow, makina osokera, makina osankha ndi malo, makina osindikizira a solder, PCB loader, PCB unloader, chip mounter, SMT AOI makina, makina a SMT SPI, makina a SMT X-Ray, Zida zopangira msonkhano wa SMT, Zida zopangira PCB SMT zida zosinthira, ndi zina zilizonse makina a SMT omwe mungafune, chonde titumizireni kuti mumve zambiri:
Malingaliro a kampani Hangzhou NeoDen Technology Co., Ltd
Webusaiti:www.neodentech.com
Imelo:info@neodentech.com
Nthawi yotumiza: Sep-15-2020