"Ho hloekisa" hangata ho hlokomolohuoa ts'ebetsong ea tlhahiso ea PCBA ea liboto tsa potoloho, 'me ho nkoa hore ho hloekisa hase mohato oa bohlokoa.Leha ho le joalo, ka tšebeliso ea nako e telele ea sehlahisoa ka lehlakoreng la bareki, mathata a bakoang ke ho hloekisa ho se sebetse qalong a baka mefokolo e mengata, ho lokisoa kapa Lihlahisoa tse hopolotsoeng li bakile keketseho e matla ea litšenyehelo tsa ts'ebetso.Ka tlase, Heming Technology e tla hlalosa ka bokhutšoanyane karolo ea PCBA ho hloekisa liboto tsa potoloho.
Ts'ebetso ea tlhahiso ea PCBA (kopano ea potoloho e hatisitsoeng) e feta mekhahlelong e mengata ea ts'ebetso, 'me mohato ka mong o silafalitsoe ho ea ka likhato tse fapaneng.Ka hona, li-depositi tse fapaneng kapa litšila li lula holim'a boto ea potoloho PCBA.Lintho tsena tse silafatsang li tla fokotsa ts'ebetso ea sehlahisoa, esita le ho baka ho hloleha ha sehlahisoa.Ka mohlala, ts'ebetsong ea lisebelisoa tsa elektronike, solder paste, flux, joalo-joalo li sebelisoa bakeng sa lisebelisoa tse thusang.Ka mor'a soldering, masala a hlahisoa.Mesaletsa e na le organic acid le ion.Har'a bona, organic acid e tla corrode boto oa potoloho PCBA.Ho ba teng ha li-ion tsa motlakase ho ka etsa hore potoloho e khuts'oane 'me e etse hore sehlahisoa se hlolehe.
Ho na le mefuta e mengata ea lintho tse silafatsang boto ea potoloho PCBA, e ka akaretsoang ka mekhahlelo e 'meli: ionic le bao e seng ionic.Litšila tsa Ionic li kopana le mongobo tikolohong, 'me ho falla ha electrochemical ho etsahala ka mor'a ho kenngoa ha motlakase, ho etsa sebopeho sa dendritic, ho fella ka tsela e tlaase ea ho hanyetsa, le ho senya mosebetsi oa PCBA oa boto ea potoloho.Lintho tse silafatsang tseo e seng tsa ionic li ka kenella ka har'a karolo e sireletsang ea PC B 'me tsa mela li-dendrite tlas'a bokaholimo ba PCB.Ho phaella ho litšila tsa ionic le tse seng tsa ionic, ho boetse ho na le litšila tse silafatsang, tse kang libolo tsa solder, lintlha tse phaphametseng ka har'a bate ea solder, lerōle, lerōle, joalo-joalo Litšila tsena li ka etsa hore boleng ba manonyeletso bo fokotsehe, 'me solder e fokotsehe. manonyeletso a leotsoa nakong ea solder.Lintho tse fapaneng tse sa rateheng tse kang li-pores le li-circuits tse khutšoane.
Kaha ho na le lintho tse ngata tse silafatsang, ke life tse amehileng ka ho fetisisa?Flux kapa solder paste hangata e sebelisoa ho reflow soldering le lits'ebetso tsa wave soldering.Haholo-holo li entsoe ka li-solvents, li-wetting agents, li-resin, corrosion inhibitors le activator.Lihlahisoa tse fetotsoeng ka mocheso li tlameha ho ba teng ka mor'a ho soasoa.Lintho tsena Mabapi le ho hloleha ha sehlahisoa, masala a post-welding ke ntho ea bohlokoa ka ho fetisisa e amang boleng ba sehlahisoa.Masala a ionic a ka 'na a etsa hore electromigration e fokotsehe,' me masala a rosin resin a bonolo ho adsorb Lerōle kapa litšila li etsa hore ho hanyetsa ho kopana ho eketsehe, 'me maemong a boima, ho tla lebisa ho hloleha ha potoloho e bulehileng.Ka hona, ho hloekisa ka tieo ho tlameha ho etsoa ka mor'a ho tjheseletsa ho netefatsa boleng ba boto ea potoloho PCBA.
Ka kakaretso, ho hloekisa boto ea potoloho PCBA ke habohlokoa haholo."Ho hloekisa" ke ts'ebetso ea bohlokoa e amanang ka kotloloho le boleng ba boto ea potoloho ea PCBA mme ke ea bohlokoa haholo.