Kuwanikwa kwePCBA Virtual Soldering Problem Method

I. Zvikonzero zvakajairika zvechizvarwa chenhema solder ndizvo

1. Solder melting point yakaderera, simba harina kukura.

2. Huwandu hwemarata anoshandiswa mukupisa ishoma.

3. Hunhu husina kunaka hwe solder pachayo.

4. Mapini echikamu aripo stress phenomenon.

5. Zvikamu zvinogadzirwa nekushisa kwepamusoro kunokonzerwa neiyo fixed point solder kuora.

6. Mapini echikamu haabatiki zvakanaka kana akaiswa.

7. Hunhu husina kunaka hwemhangura pamusoro pebhodhi redunhu.

Pane zvikonzero zvakawanda zvechizvarwa chePCBA solder matambudziko, uye zvakare zvakanyanya kuoma kudzora maitiro.Dummy soldering ichaita kuti dunhu rishande zvisina kujairika, rionekwe kana rakanaka uye rakaipa, uye kuburitsa ruzha, kudunhu rekuongorora, kushandisa uye kuchengetedza njodzi huru yakavanzika.Mukuwedzera, kunewo chikamu chezvibatanidza zvekutengesa munharaunda yakatanga kushanda kwenguva yakareba, kuchengetedza kuonana kuchiri kwakanaka, hazvisi nyore kuwana.Saka zvinodikanwa kuve neyakanaka yekuona nzira yekukurumidza kuona kuti chigadzirwa chakashata.

II.Kuwanikwa kwePCBA yenhema solder nzira

1. Maererano nekuonekwa kwekukundikana kwechiitiko chekuona huwandu hwehuwandu hwekukundikana.

2. Kuonekwa kwekucherechedza, kutarisa kune zvikamu zvakakura uye zvikamu zvine chizvarwa chekupisa.

3. Kusimudza girazi kutarisa.

4. Wrenching bhodhi redunhu.

5. Kuzunza zvinhu zvinofungirwa nemaoko, uchicherechedza kana majoini epini anotengeswa achiita seakasununguka.

Uye zvakare, pane imwe nzira yekuwana dhiyagiramu yedunhu, shandisa imwe nguva yekunyatso tarisa iyo DC nhanho yega yega chiteshi pakatarisana nedhiyagiramu yedunhu kuti uone dambudziko nderekuti kunze, izvo zvinoenderana neyakajairwa kuunganidza ruzivo.

Dummy soldering injodzi huru yakavanzika yedunhu, dummy soldering iri nyore kuita mushandisi mushure menguva yakati rebei, yakashata conductivity uye kutadza, uyezve kukonzera yakakwira yekudzoka, kuwedzera mutengo wekugadzira.Nokudaro, dambudziko rekutengesa kwenhema rinofanira kuwanikwa munguva yekuderedza kurasikirwa.