Kuwotcherera ndi SMT Chip processing ndondomeko ndi yofunika kwambiri kugwirizana, ngati mu ulalo anapereka zolakwa zidzakhudza mwachindunji Chip processing dera bolodi analephera ndipo ngakhale scraped, kotero mu kuwotcherera ayenera kumvetsa njira kuwotcherera olondola, kumvetsa mfundo zofunika kupewa kupewa. mavuto.
1. mu processing Chip pamaso kuwotcherera pa ziyangoyakuti TACHIMATA ndi flux, ntchito soldering chitsulo kuthana ndi kamodzi, kupewa ziyangoyango ndi bwino malata kapena oxidized, mapangidwe kuwotcherera zoipa, Chip ndi zambiri safuna kulimbana ndi .
2. Gwiritsani ntchito ma tweezers kuti muyike mosamala chipangizo cha PQFP pa bolodi la PCB, samalani kuti musawononge zikhomo.Gwirizanitsani ndi mapepala ndikuwonetsetsa kuti chip chimayikidwa m'njira yoyenera.Ikani kutentha kwa chitsulo chosungunula kupitirira madigiri 300 Celsius, sungani nsonga yachitsulo muzitsulo zazing'ono, kanikizani pansi pa chip ndi chida chomwe chagwirizanitsidwa ndi malowo, onjezerani pang'ono solder. zikhomo ziwiri zokhala ndi diagonally, kukanikizabe pa chip ndikugulitsa mapini awiri okhala ndi diagonally kuti chip chikhazikike ndipo sichingasunthe.Pambuyo pa soldering diagonal, yang'anani malo a chip kuyambira pachiyambi kuti muwone ngati ikugwirizana.Ngati ndi kotheka, sinthani kapena chotsani ndikugwirizanitsa malo pa PCB kuyambira pachiyambi.
3. Yambani kuwotcherera zikhomo zonse, muyenera kuwonjezera solder ku nsonga ya chitsulo chosungunula, zikhomo zonse zidzakutidwa ndi solder kuti zikhomo zigwirizane ndi zonyowa.Gwirani kumapeto kwa pini iliyonse ya chip ndi nsonga yachitsulo chogulitsira mpaka mutawona solder ikuyenda mu zikhomo.Pamene soldering, n'kudziphatika pa nsonga ya chitsulo soldering ndi zikhomo soldered mofanana kuti kupewa kukhudzana chifukwa solder kwambiri.
4. Mutatha kusungunula zikhomo zonse, nyowetsani zikhomo zonse ndi solder kuti muyeretse solder.Z pambuyo ntchito tweezers kuona ngati pali solder zabodza, fufuzani akamaliza, kuchokera bolodi yokutidwa ndi flux, adzakhala ndi zosavuta SMD resistive zigawo solder ena, mukhoza choyamba mu solder mfundo pa malata, ndiyeno kuvala mbali imodzi ya chigawocho, ndi tweezers kugwira chigawo chimodzi, solder mbali imodzi, ndiyeno kuwona ngati anaika bwino;ngati adayikidwa bwino, solder pa inayo. Ngati itero, gulitsani mbali inayo.Kuchita zambiri kumafunika kuti mumvetse bwino luso la soldering.
Zithunzi za NeoDen IN12Creflow uvuni
1. Makina opangira kuwotcherera a fume filtration, kusefera koyenera kwa mpweya woipa, mawonekedwe okongola komanso chitetezo cha chilengedwe, chogwirizana kwambiri ndi kugwiritsa ntchito malo apamwamba kwambiri.
2. Dongosolo lowongolera lili ndi mawonekedwe a kuphatikiza kwakukulu, kuyankha kwanthawi yake, kulephera kochepa, kukonza kosavuta, etc.
3. Kugwiritsiridwa ntchito kwapamwamba kwambiri kwa aluminiyumu yopangira kutentha kwazitsulo m'malo mwa chubu chotenthetsera, zonse zopulumutsa mphamvu komanso zogwira mtima, poyerekeza ndi mavuni ofananiranso otsitsimula pamsika, kupotoka kwa kutentha kwapakati kumachepetsedwa kwambiri.
4. Mapangidwe oteteza kutentha kwa kutentha, kutentha kwa chipolopolo kumatha kuyendetsedwa bwino.
5. Kuwongolera mwanzeru, sensa ya kutentha kwambiri, kukhazikika kwa kutentha kwabwino.
6. Magalimoto oyendetsa mayendedwe opangidwa mwamakonda malinga ndi mawonekedwe a lamba wamtundu wa B, kuti atsimikizire kuthamanga kwa yunifolomu ndi moyo wautali.
Nthawi yotumiza: Dec-13-2022