Enqubweni yokucubungula ye-PCBA, ngaphezu kwe-batch soldering usebenzisageleza kabushaihhavinifuthii-wave solderingumshini, i-soldering manual nayo iyadingeka ukukhiqiza umkhiqizo uphelele.
Izinto ezidinga ukunakwa lapho wenza imanuwali PCBA soldering:
1. Kumelwe isebenze ngendandatho ye-electrostatic, umzimba womuntu ungakhiqiza ngaphezu kuka-10,000 volts kagesi omile, futhi i-IC izolimala lapho i-voltage ingaphezu kwama-volts angu-300, ngakho umzimba womuntu udinga ukukhipha ugesi omile emhlabathini.
2. Gqoka amagilavu noma ikhava yomunwe ukuze usebenze, izandla ezingenalutho azikwazi ukuthinta ibhodi kanye nezingxenye zegolide ngomunwe.
3. Weld ngezinga lokushisa elifanele, i-angle yokushisela, nokulandelana kokushisela, futhi ugcine isikhathi esifanele sokushisela.
4. Bamba i-PCB ngendlela efanele: Bamba unqenqema lwe-PCB lapho uthatha i-PCB futhi ungathinti izingxenye ebhodini ngezandla zakho.
5. Zama ukusebenzisa i-welding ephansi yokushisa: ukushisa okuphezulu kwe-welding kuzosheshisa i-oxidation ye-tip yensimbi ye-soldering, ukunciphisa impilo ye-tip yensimbi.Uma i-soldering iron tip izinga lokushisa lidlula ama-470 ℃.Izinga layo le-oxidation lishesha ngokuphindwe kabili njenge-380 ℃.
6. Ungasebenzisi ukucindezela okukhulu uma u-soldering: uma u-soldering, sicela ungafaki ukucindezela okukhulu, ngaphandle kwalokho kuzokwenza umonakalo wekhanda lensimbi ye-solder, deformation.Uma nje isihloko se-solder iron singaxhumana ngokugcwele ne-solder joint, ukushisa kungadluliselwa.(Ngokosayizi wejoyinti le-solder ukukhetha ithiphu yensimbi ehlukile, ukuze ithiphu yensimbi ikwazi nokwenza ukudlulisa ukushisa okungcono).
7. i-soldering ngeke ingqongqoze noma inyakazise i-iron nozzle: ukungqongqoza noma ukunyakazisa umlomo wensimbi kuzokwenza umonakalo oyinhloko wokushisa kanye nobuhlalu bethayela buchaphaze, kufinyeze impilo yesevisi ye-heater core, ubuhlalu bethini uma buchaphazwe ku-PCBA bungase bakhe isifunda esifushane. , okubangela ukusebenza kabi kukagesi.
8. sebenzisa isipontshi samanzi esimanzi ukuze ususe i-soldering iron head oxide kanye ne-tin slag eyeqile.Ukuhlanza okuqukethwe kwamanzi isiponji ukuze kufane, okuqukethwe kwamanzi okungaphezu kwalokho akukwazi nje ukususa ngokuphelele ikhanda lensimbi e-solder ku-shavings ye-solder, kodwa futhi ngenxa yokwehla okubukhali kwezinga lokushisa kwekhanda lensimbi yensimbi (lokhu kushaqeka okushisayo ekhanda lensimbi kanye Isici sokushisa ngaphakathi kwensimbi, umonakalo mkhulu) futhi ikhiqize ukuvuza, i-solder engamanga nokunye ukusoda okungekuhle, induku yamanzi ekhanda lensimbi yensimbi ebhodini lesifunda nayo izodala ukugqwala kwebhodi lesifunda kanye nesekethe elifushane nokunye okubi, uma amanzi kuncane kakhulu noma cha ukwelashwa kwamanzi ezimanzi, kuyokwenza ukudayiswa kwensimbi ekhanda ukulimala, i-oxidation futhi iholele ekubeni ingabi phezu kwe-tin, okufanayo kulula ukubangela ukuthungatha okungamanga nokunye ukubola okumpofu.Ngaso sonke isikhathi hlola okuqukethwe kwamanzi esipontshini esifanele, kuyilapho okungenani izikhathi ezi-3 ngosuku ukuhlanza isipontshi emanyaleni nakweminye imfucumfucu.
9. Inani likathayela kanye ne-flux kufanele lifanele lapho kuthengiswa.I-solder eningi kakhulu, kulula ukubangela ngisho ne-tin noma ukumboza iziphambeko ze-welding, i-solder encane kakhulu, amandla angagcini nje aphansi mechanical, futhi ngenxa ebusweni oxidation ungqimba kancane kancane wajula ngokuhamba kwesikhathi, kulula ukuholela ukwehluleka solder ngokuhlanganyela.Ukuguquguquka okuningi kuzongcolisa futhi kulimaze i-PCBA, okungase kuholele ekuvuzeni nokunye ukonakala kukagesi, okuncane kakhulu akusebenzi.
10. ngokuvamile gcina ikhanda lensimbi e-soldering phezu kwethini: lokhu kunganciphisa amathuba oksijidi wekhanda le-soldering iron, ukuze ikhanda lensimbi lihlale liqinile.
11. I-solder spatter, izehlakalo zamabhola e-solder kanye nokusebenza kwe-soldering zinamakhono kanye nokushisa kwekhanda lensimbi yensimbi;Inkinga ye-soldering flux spatter: lapho i-soldering iron iyancibilika ngokuqondile ucingo lwe-solder, i-flux izoshisa ngokushesha futhi ifake, lapho i-soldering, ithatha ucingo lwe-solder aluthinteki ngokuqondile indlela yensimbi, inganciphisa i-spatter flux.
12. Uma u-soldering, qaphela ukuthi ungenzi i-soldering iron ishise eduze kwe-plastic insulation layer yocingo kanye nobuso bezingxenye, ikakhulukazi uma u-soldering isakhiwo esihlangene, ukuma kwemikhiqizo eyinkimbinkimbi kakhulu.
13. Uma u-soldering, kuyadingeka ukuzihlola.
a.Ukuthi kukhona ukuvuza kwe-welding.
b.Ukuthi ilunga le-solder libushelelezi futhi ligcwele, liyacwebezela.
c.Ukuthi kukhona i-solder eyinsalela eduze kwejoyinti le-solder.
d.Ukuthi kukhona ngisho ithini.
e.Ukuthi iphedi ivaliwe.
f.Ukuthi i-solder joint inemifantu.
g.Ukuthi amajoyinti e-solder adonse ichopho lento.
14. Welding, kodwa futhi kudingeka unake ezinye izindaba zokuphepha, gqoka imaskhi, futhi nge fan kanye nezinye izinto zokwenza umoya omncane ulondoloze umoya wesiteshi sokushisela.
In the PCBA Welding manual, naka ezinye izinyathelo eziyisisekelo, kungaba ngcono kakhulu ubuchwepheshe Welding kanye nekhwalithi Welding umkhiqizo.
Isikhathi sokuthumela: Mar-03-2022