Momwe Mungawotchere Mabodi Ozungulira Awiri Am'mbali?

I. Makhalidwe a bolodi a mbali ziwiri

Kusiyana pakati pa matabwa a dera limodzi ndi mbali ziwiri ndi chiwerengero cha zigawo zamkuwa.

Bolodi loyang'ana mbali ziwiri ndi bolodi lozungulira ndi mkuwa kumbali zonse ziwiri, zomwe zingathe kulumikizidwa kudzera m'mabowo.Ndipo pali mzere umodzi wokha wa mkuwa kumbali imodzi, yomwe ingagwiritsidwe ntchito pa mizere yosavuta, ndipo mabowo opangidwa angagwiritsidwe ntchito popanga-plug-in koma osati kuyendetsa.

Zofunikira zaukadaulo za bolodi loyang'ana mbali ziwiri ndi kachulukidwe wama waya, kabowo ndi kakang'ono, ndipo pobowo wa dzenje lopangidwa ndi zitsulo ndizocheperako.Kulumikizana wosanjikiza kumadalira mtundu wa dzenje lopangidwa ndi zitsulo, zokhudzana ndi kudalirika kwa PCB.

Ndi kuchepetsa kabowo, choyambirira alibe mphamvu pa lalikulu kabowo zinyalala, monga burashi zinyalala, phulusa chiphala, kamodzi anasiyidwa mu dzenje mkati, adzapanga mankhwala mpweya wamkuwa, mkuwa plating anataya zotsatira, palibe dzenje mkuwa. , kukhala wakupha wakupha wa dzenje metallization.

II.Awiri am'mbali mbali bwalo gulu kuti kuonetsetsa kuti mbali ziwiri dera ndi odalirika conductive zotsatira, ayenera choyamba kugwiritsa ntchito mawaya ndi zina kuwotcherera dzenje kugwirizana pa gulu awiri (ndiko kuti, ndondomeko metallization kudzera dzenje gawo), ndi dulani nsonga yolumikizira yotuluka, kuti musapweteke dzanja la wogwiritsa ntchito, iyi ndiye gulu lokonzekera mawaya.

III.Reflow uvunizofunika kuwotcherera:

1. Kukonza ndondomeko kudzachitika molingana ndi zofunikira za zojambulazo pazida zomwe zimafuna kupangidwa;Ndiko kuti, pambuyo pulagi pulasitiki woyamba.

2. Pambuyo pojambula, nkhope yachitsanzo ya diode iyenera kukhala pamwamba, ndipo kutalika kwa zikhomo ziwirizo sikuyenera kukhala kosagwirizana.

3. Pamene chipangizo ndi zofunika polarity anaikapo, tcherani khutu polarity sadzakhala anaikapo mmbuyo, ndi wodzigudubuza Integrated chipika zigawo zikuluzikulu, pambuyo kulowetsa, kaya ofukula kapena recumbent chipangizo, sadzakhala ndi mapendekedwe zoonekeratu.

4. Mphamvu yachitsulo yamagetsi yomwe imagwiritsidwa ntchito powotcherera ili pakati pa 25 ~ 40W, kutentha kwa mutu wachitsulo chamagetsi kuyenera kuwongoleredwa pafupifupi 242 deG C, kutentha kwapamwamba kwambiri mutu ndikosavuta "kufa", kutentha kumakhala otsika kwambiri kuti asungunuke solder, nthawi yowotcherera imayendetsedwa mumasekondi 3 ~ 4.

5. Kuwotcherera ovomerezeka malinga ndi chipangizo kuchokera kumtunda kupita kumtunda, kuchokera mkati mpaka kunja kwa mfundo zowotcherera kuti zigwire ntchito, kuwotcherera nthawi kuti adziwe, nthawi yayitali kwambiri idzakhala yotentha chipangizo, idzakhalanso yotentha yamkuwa yokutidwa ndi waya pa mbale yokutidwa ndi mkuwa.

6. Chifukwa ndi kuwotcherera mbali ziwiri, kotero iyeneranso kupanga ndondomeko yoyika bolodi la dera, kuti musakanize chipangizochi pansipa.

7. akamaliza dera bolodi kuwotcherera ayenera kuchitidwa cheke mabuku mtundu chodetsa, fufuzani kutayikira kwa kuwotcherera malo, kutsimikizira gulu dera pambuyo redundant chipangizo pini kudulira, pambuyo ikuyenda mu ndondomeko yotsatira.

8. Mu ntchito yeniyeni, ayeneranso mosamalitsa kutsatira mfundo ndondomeko ntchito, kuonetsetsa kuwotcherera khalidwe la mankhwala.

Ndi chitukuko chofulumira chaukadaulo wapamwamba, zinthu zamagetsi zomwe zimagwirizana kwambiri ndi anthu zimasinthidwa nthawi zonse, anthu amafunikiranso magwiridwe antchito apamwamba, kakulidwe kakang'ono, zinthu zamagetsi zamagetsi zamagetsi, zomwe zimayika zofunikira zatsopano pagulu ladera.