PCBA sebetsa, ka SMT le DIP plug-in soldering, bokaholimo ba manonyello solder tla ba masala ba bang flux rosin, joalo-joalo . ama bophelo ba sehlahisoa.Masala a litšila, ha a kopane le litlhoko tsa bohloeki ba sehlahisoa, kahoo pcba e hloka ho hloekisoa pele e romelloa.Tse latelang nka u ho utloisisa tshebetso ya tlhahiso ea pcba metsi ho hlatsoa ba bang ba ditomotsebe tsa le mehato ea ho itšireletsa.
Ka miniaturization ea lihlahisoa tsa elektroniki, letsoalo la likarolo tsa elektroniki, sebaka se senyenyane, ho hloekisa ho se ho ntse ho e-ba thata le ho feta, khethong ea mokhoa oa ho hloekisa, ho ea ka mofuta oa solder paste le flux, bohlokoa ba sehlahisoa, litlhoko tsa bareki bakeng sa ho hloekisa boleng. ho khetha.
I. PCBA mekhoa ea ho hloekisa
1. Ho hloekisa metsi a hloekileng: ho hlatsoa kapa ho qoelisa
Ho hloekisa metsi a hlakileng ke ho sebelisa metsi a hloekisitsoeng, ho fafatsa kapa ho hlatsoa metsi, ho bolokehile ho sebelisoa, ho omella ka mor'a ho hloekisa, ho hloekisa hona ho theko e tlaase ebile ho bolokehile, empa lintho tse ling tse senyang ha li bonolo ho li tlosa.
2. Ho hloekisa metsi a seng a hloekile
Semi-water hloekisa ke tshebediso ya organic solvents le deionized metsi, e leng e phaella ka ho re ba bang ba mahlahana a sebetsang, additives ho theha e hloekisang, cleaner ena e na le solvents organic, low toxicity, tshebediso ya sireletsehileng, empa ho rinse ka metsi, 'me joale omisa. .
3. Ultrasonic ho hloekisa
Tšebeliso ea maqhubu a phahameng haholo ka har'a mokelikeli ho fetoha matla a kinetic, ho thehoa ha li-bubble tse se nang palo tse otlang holim'a ntho, e le hore mobu o tlosoe, e le ho finyella phello ea ho hloekisa litšila, e sebetsang hantle haholo. , empa hape le ho fokotsa tšitiso ea motlakase.
II.PCBA ho hloekisa litlhoko tsa theknoloji
1. PCBA holim'a tjheseletsa likarolo ntle le litlhoko tse khethehileng, lihlahisoa tsohle li ka sebelisoa ho hloekisa boto ea PCBA ka mahlahana a khethehileng a ho hloekisa.
2. Likarolo tse ling tsa elektronike li thibetsoe ho ikopanya le moemeli ea khethehileng oa ho hloekisa, tse kang: li-switches tsa bohlokoa, socket ea marang-rang, buzzer, lisele tsa betri, pontšo ea LCD, likarolo tsa polasetiki, lilense, joalo-joalo.
3. Ts'ebetso ea ho hloekisa, e ke ke ea sebelisa li-tweezers le lisebelisoa tse ling tsa tšepe tse tobileng PCBA, e le hore u se ke ua senya bokaholimo ba boto ea PCBA, scratch.
4. PCBA ka mor'a likarolo soldering, flux masala ka mor'a nako e tla hlahisa kutu karabelo 'meleng, lokela ho hloekisoa kapele kamoo ho ka khonehang.
5. PCBA tlhoekiso e phethiloe, e lokela ho behoa ka ontong ea likhato tse ka bang 40-50, ka mor'a metsotso e 30 ea ho baka, ebe o tlosa boto ea PCBA ka mor'a ho omisa.
III.Litlhokomelo tsa ho hloekisa PCBA
1. PCBA boto holim'a ke ke ba masala flux, lifaha thini le manya;manonyeletso a holimo le a solder a ke ke a ba le ts'ebetso e tšoeu, e bohlooho.
2. PCBA boto holim'a e ke ke ea khomarela;ho hloekisa ho tlameha ho roala lesale la letsoho la electrostatic.
3. PCBA e tlameha ho roala maske e sireletsang pele e hloekisa.
4. e se e hloekisitsoe PCBA boto le sa hloekisoa PCBA boto beha ka thoko le tšoauoa.
5. The hloekisa PCBA boto e thibetsoe ho ka ho toba ama holim'a metsi ka matsoho.
Nako ea poso: Feb-24-2023