I-Soldering yenye yezona ndawo zibalulekileyo zenkqubo yendibano yombane kubavelisi be-pcb.Ukuba akukho kuqinisekiswa komgangatho ohambelanayo wenkqubo yokuthengisela, nasiphi na isixhobo sombane esenziwe kakuhle siya kuba nzima ukufezekisa iinjongo zokuyila.Ke ngoko, ngexesha lenkqubo ye-welding, le misebenzi ilandelayo kufuneka yenziwe:
1. Nokuba i-weldability ilungile, umphezulu we-welding kufuneka ugcinwe ucocekile.
Ngenxa yokugcinwa kwexesha elide kunye nongcoliseko, iifilimu ze-oxide ezinobungozi, amabala e-oyile, njl.Ngoko ke, umphezulu kufuneka uhlambuluke phambi kwe-welding, ngaphandle koko kunzima ukuqinisekisa umgangatho.
2. Iqondo lokushisa kunye nexesha le-welding kufuneka lifaneleke.
Xa i-solder ifana, i-solder kunye ne-solder metal ifudunyezwa kwi-solder ye-soldering ukwenzela ukuba i-solder etyhidiweyo idibanise kwaye isasazeke kumphezulu we-solder metal kwaye yenza i-compound yesinyithi.Ngoko ke, ukwenzela ukuba kuqinisekiswe i-solder eqinile, kuyimfuneko ukuba ube nobushushu obufanelekileyo be-solder.Kwiqondo lokushisa eliphezulu ngokwaneleyo, i-solder inokumanziswa kwaye isasazwe ukwenza i-alloy layer.Iqondo lobushushu liphezulu kakhulu ukuba lingathengiswa.Ixesha le-soldering linempembelelo enkulu kwi-solder, ukumanzisa kwamacandelo athengiswayo kunye nokwakhiwa komgca webhondi.Ukulilawula ngokuchanekileyo ixesha le-welding yeyona nto iphambili kwi-welding ephezulu.
3. Amalungu e-solder kufuneka abe namandla aneleyo omatshini.
Ukuze kuqinisekiswe ukuba iindawo ezidibeneyo aziyi kuwela kwaye zikhulule phantsi kwe-vibration okanye impembelelo, kuyimfuneko ukuba ube namandla aneleyo omatshini we-solder joints.Ukuze wenze i-solder joints ibe namandla aneleyo omatshini, indlela yokugoba i-lead terminals yamacandelo athengiswayo ingasetyenziswa ngokubanzi, kodwa i-solder egqithisileyo akufanele iqokelelwe, enokuthi ibangele imijikelezo emfutshane phakathi kwe-soldering ebonakalayo kunye neesekethe ezimfutshane.Amalungu e-solder kunye ne-solder joints.
4. I-Welding kufuneka ithembeke kwaye iqinisekise ukuhanjiswa kombane.
Ukuze wenze i-solder joints ibe ne-conductivity enhle, kuyimfuneko ukukhusela i-solder yobuxoki.I-Welding ithetha ukuba akukho sakhiwo se-alloy phakathi kwe-solder kunye ne-solder surface, kodwa ibambelela ngokulula kwi-soldered metal surface.Kwi-welding, ukuba kuphela inxalenye ye-alloy yenziwe kwaye intsalela ayiqulunqwanga, i-solder joint nayo ingadlula okwangoku ngexesha elifutshane, kwaye kunzima ukufumana iingxaki ngesixhobo.Nangona kunjalo, njengoko ixesha lihamba, indawo engenzi i-alloy iya kuba yi-oxidized, eya kukhokelela kwisiganeko sokuvulwa kwexesha kunye nokuphuka, okuya kubangela iingxaki ezisemgangathweni zemveliso.
Ngamafutshane, umgangatho omhle we-solder kufuneka ube: i-solder joint ekhanyayo kwaye ilula;umgca we-solder ufana, uncinci, ufanelekile ubungakanani bepadi, kwaye umgca wokudibanisa uphazamisekile;i-solder yanele kwaye isasazeke kwimilo yengubo;akukho zintanda, imingxunya, Akukho ntsalela flux.
Ixesha lokuposa: Mar-21-2023