Kutheni kunjaloi-reflow solderingebizwa ngokuba "reflow"?Ukuhamba kwakhona kwe-soldering ye-reflow kuthetha ukuba emva kwe-i-solder pasteifikelela kwindawo yokunyibilika yentlama ye-solder, phantsi kwentshukumo yoxinzelelo lomphezulu lwetoti yolwelo kunye ne-flux, itoti yolwelo iphinda ibuyele kwizikhonkwane zecandelo ukwenza amalungu e-solder, evumela inkqubo yesekethe A apho iipads zebhodi kunye namacandelo ithengiswe ngokupheleleyo ikwabizwa ngokuba yinkqubo “yokuqukunjelwa kwakhona”.
1. Xa ibhodi ye-PCB ingena kwindawo yokufudumeza kwakhona, i-solvent kunye negesi kwi-solder paste iyaphuphuma.Ngelo xesha, i-flux kwi-solder paste imanzisa iipads, i-component ends kunye nezikhonkwane, kwaye i-solder paste iyancipha kwaye iyancipha., Ukugubungela i-pad, ukuhlukanisa i-pad kunye nezikhonkwane zecandelo kwi-oxygen.
2. Xa ibhodi yesekethe ye-PCB ingena kwindawo yokugquma i-soldering, i-PCB kunye namacandelo afakwe ngaphambili ukuze athintele i-PCB ukuba ingene ngokukhawuleza kwindawo yokushisa ephezulu ye-welding kwaye yonakalise i-PCB kunye namacandelo.
3. Xa i-PCB ingena kwindawo ye-reflow soldering, ubushushu bukhuphuka ngokukhawuleza ukuze i-solder paste ifikelele kwimo etyhidiweyo, kwaye i-solder yolwelo imanzisa kwaye isasaze iipads, iziphelo zecandelo kunye nezikhonkwane ze-PCB, kwaye i-tin yolwelo iphinda iphinde ixube kwaye ixube. ukwenza i-solder joints.
4. I-PCB ingena kwindawo yokupholisa i-reflow, kwaye i-tin yolwelo iphinda ifakwe kwakhona ukuze iqinise amajoyina e-solder ngomoya obandayo we-reflow soldering;ngeli xesha, i-reflow soldering igqityiwe.
Yonke inkqubo yokusebenza ye-reflow soldering ayinakuhlukaniswa nomoya oshushu kwisithando somlilo.I-Reflow soldering ixhomekeke kwisenzo sokuhamba komoya oshushu kumalungu e-solder.I-jelly-like flux ifumana ukusabela komzimba phantsi kweqondo elithile lokushisa eliphezulu lokuhamba komoya ukufikelela kwi-sMD soldering;i-reflow soldering ” “Reflow” kungenxa yokuba irhasi ijikeleza ngapha nangapha kumatshini wokuwelda ukuvelisa ubushushu obuphezulu ukufezekisa injongo ye-welding, ngoko kubizwa ngokuba yi-reflow soldering.
Ixesha lokuposa: Nov-03-2022