Kungaphansi kwaziphi izimo lapho usetha ngaphansi kwaziphi izimo amazinga okushisa ahlukene we-TOP kanye nezinto zokushisisa ezaseZansi zehhavini eligeleza kabusha?
Ezimweni eziningi, ama-setpoints ashisayo ehhavini eligeleza kabusha ayafana kuzo zombili izici zokushisisa Phezulu naPhansi endaweni efanayo.Kodwa kunezimo ezikhethekile lapho kudingekile ukusebenzisa izilungiselelo zokushisa ezihlukene ku-TOP kanye nezakhi ze-BOTTOM.Unjiniyela wenqubo ye-SMT kufanele abuyekeze izidingo ezithile zebhodi ukuze anqume izilungiselelo ezifanele.Ngokuvamile, nansi eminye imihlahlandlela yokusetha izinga lokushisa lezinto zokushisisa:
- Uma kukhona izingxenye zembobo (TH) ebhodini, futhi ufuna ukuzigeleza kabusha ngezingxenye ze-SMT ndawonye, ungase uthande ukucabangela ukwandisa izinga lokushisa le-elementi engezansi ngoba izingxenye ze-TH zizovimba ukujikeleza komoya oshisayo ohlangothini olungaphezulu, ukuvimbela amaphedi ngaphansi kwezingxenye ze-TH kusukela ekutholeni ukushisa okwanele ukwenza i-soldering joint enhle.
- Iningi lezindlu zokuxhuma i-TH zenziwe ngepulasitiki ezoncibilika lapho izinga lokushisa seliphezulu kakhulu.Unjiniyela wenqubo kufanele enze isivivinyo kuqala futhi abuyekeze umphumela.
- Uma kunezingxenye ezinkulu ze-SMT ezifana nama-inductors nama-aluminium capacitor ebhodini, uzodinga futhi ukucabangela ukusetha amazinga okushisa ahlukene ngesizathu esifanayo nezixhumi ze-TH.Unjiniyela udinga ukuqoqa idatha eshisayo yohlelo oluthile lwebhodi futhi alungise iphrofayela eshisayo izikhathi ezimbalwa ukuze anqume amazinga okushisa alungile.
- Uma kukhona izingxenye ezinhlangothini zombili zebhodi, kungenzeka ukusetha amazinga okushisa ahlukene futhi.
Okokugcina, unjiniyela wenqubo kufanele ahlole futhi enze iphrofayili eshisayo yawo wonke amabhodi athile.Onjiniyela bekhwalithi kufanele futhi bahlanganyele ukuze bahlole i-solder joint.Umshini wokuhlola i-x-ray ungase usetshenziselwe ukuhlaziya okwengeziwe.
Isikhathi sokuthumela: Jul-07-2022