Joalo ka ha bohle re tseba, PCB ke eona“borokho” ho hokela karolo e 'ngoe le e 'ngoe ea motlakase 'me ke karolo e kholo lihlahisoa tsa elektroniki. E na le mefuta e fapaneng ea ts'ebeliso, ho kenyelletsa lisebelisoa tsa elektroniki tsa bareki, lisebelisoa tsa elektroniki tsa koloi, puisano, meriana, morero oa sesole, sefofane joalo-joalo. Matsatsing ana, lisebelisoa tsa elektroniki tsa bareki le lisebelisoa tsa elektroniki tsa koloi li ntse li tsoela pele ka potlako mme li fetoha likarolo tsa mantlha tsa ts'ebeliso. Ka nako ena, ho tjheseletsa ha PCB ho hohetse tlhokomelo e kholo ho tsoa ho baetsi ba PCB. Joale, ke mofuta ofe oa PCB oo mochini oa welding oa laser o sebetsang ho oona? Let’s shebisisa ka tlase.
1. Ntho e hloka ho cheseha
Ho bolela hore tlas'a mocheso o nepahetseng, tšepe e lokelang ho qhibilihisoa le thini ea solder li ka kopana hammoho ho ba le boleng bo botle ba boleng ba alloy. Ha se tšepe e 'ngoe le e' ngoe e nang le weldability e ntle. Ho ntlafatsa cheseletso ea tšepe, basebelisi ba ka etsa tin-plating kapa silevera-plating holim'a tšepe ho thibela oxidation ea bokaholimo ba tšepe.
2.Ntho e hloka ho hloeka ka holim'a metsi
E le ho kopanya lesela la soldering le lintho tse lokelang ho qhibiliha, bokaholimo ba ntho bo hloka ho hloeka. Esita le bakeng sa lintho tse ntle tse chesehang, filimi ea oxidation kapa letheba la oli le ka hlaha holim'a ntho. Ka hona, ho netefatsa boleng ba welding, bokaholimo ba ntho bo tlameha ho hloeka.
3.Sebelisa phofo e loketseng ea sekhahla
Sepheo sa ho fokotsa phofo ke ho tlosa filimi ea oxidation holim'a ntho e lokelang ho etsoa-welded. Mekhoa e fapaneng ea ho tjheseletsa e lokela ho amohela phofo e fapaneng ea sekala. Bakeng sa lisebelisoa tsa elektroniki tse nepahetseng joalo ka PCB, rosin e lokela ho sebelisoa e le phofo ea sekala ho netefatsa ts'epo ea ts'epo.
4.Ntho e hloka ho futhumatsoa ho mocheso o loketseng
Haeba mocheso oa welding o le tlase haholo, motsoako o ka khona’t thehoe. 'Me haeba mocheso oa tjheseletsa o phahame haholo, mocheso oa ho tjheseletsa o tla lula o le boemong boo e seng ba eutectic, e leng ho tla fokotsa boleng ba ho phalla ha mocheso le boemong bo bobe ka ho fetisisa, pad ho PCB e tla theoha.
5.The tjheseletsa hloka nako e loketseng nako
Nako ea ho cheselletsa e bolela nako e sebelisitsoeng ts'ebetsong ea lik'hemik'hale le ea 'mele ts'ebetsong ea welding. Ka mor'a ho etsa qeto ea mocheso oa tjheseletsa, basebelisi ba lokela ho etsa qeto ea nako e loketseng ea ho cheselletsa ho latela sebōpeho, boleng le litšobotsi tsa lintho tse lokelang ho etsoa. Haeba nako ea welding e le telele haholo, likarolo kapa likarolo tse cheselitsoeng li bonolo ho senyeha. Ka kakaretso, sebaka se seng le se seng ha sea lokela’t nka metsotsoana e fetang 5 ka nako.
E le ho boloka mochini oa welding oa laser oa PCB o le maemong a holimo, o hloka ho pholile hantle ke mochini o pholileng oa indasteri. S&A Teyu esale a nehela sehatsetsing sa indasteri ka lilemo tse 19 mme e ka fana ka li-chiller tsa indasteri bakeng sa mefuta e fapaneng ea mechini ea welding ea laser. Li-chillers tsa recirculating li na le boiketlo ba tšebeliso, tlhokomelo e tlaase, bophelo bo bolelele ba tšebeletso, botšepehi bo ke keng ba lekanngoa. Bokhoni ba ho pholisa bo tloha ho 0.6KW ho isa ho 30KW, bo ka fihlelang litlhoko tsa ho pholisa ho tsoa ho basebelisi ba fapaneng. Haeba o sa tsebe hantle hore na o ka khetha mokhoa ofe oa ho etsa li-chiller, o re romelle lengolo-tsoibila [email protected]