Kwinkqubo PCBA processing, ukongeza batch soldering usebenzisaphinda uqukunjelwei-ovenikwayei-wave solderingumatshini, i-soldering manual nayo iyafuneka ukuvelisa imveliso ngokupheleleyo.
Imiba efuna ingqwalasela xa usenza i-soldering yePCBA:
1. Kumele isebenze ngendandatho ye-electrostatic, umzimba womntu unokuvelisa ngaphezu kwe-10,000 volts yombane we-static, kwaye i-IC iya konakaliswa xa i-voltage ingaphezu kwe-300 volts, ngoko umzimba womntu kufuneka ukhuphe umbane osisigxina emhlabeni.
2. Nxiba iiglavu okanye ikhava yomnwe ukuze usebenze, izandla ezingenanto azinakuchukumisa ngqo ibhodi kunye namacandelo ngomnwe wegolide.
3. I-Weld kwiqondo lokushisa elichanekileyo, i-angle ye-welding, kunye nolandelelwano lwe-welding, kwaye ugcine ixesha elifanelekileyo le-welding.
4. Bamba iPCB ngokuchanekileyo: Bamba isiphelo sePCB xa uthatha iPCB kwaye ungachukumisi amacandelo ebhodini ngezandla zakho.
5. Zama ukusebenzisa i-welding ephantsi yokushisa: i-welding ephezulu yokushisa iya kukhawuleza i-oxidation yentsimbi ye-soldering, ukunciphisa ubomi bentsimbi yentsimbi.Ukuba iqondo lobushushu lentsimbi yentsimbi lingaphezulu kwama-470 ℃.Izinga le-oxidation yalo liphindwe kabini ngokukhawuleza njenge-380 ℃.
6. Musa ukusebenzisa uxinzelelo oluninzi xa u-soldering: xa u-soldering, nceda ungafaki uxinzelelo oluninzi, ngaphandle koko kuya kwenza umonakalo wentloko yentsimbi, i-deformation.Ngethuba nje i-tip yentsimbi ye-solder ingaqhagamshelana ngokupheleleyo ne-solder joint, ukushisa kunokudluliselwa.(Ngokobungakanani bomdibaniso we-solder ukukhetha incam yentsimbi eyahlukileyo, ukwenzela ukuba incam yentsimbi inokwenza ngcono ukuhanjiswa kobushushu).
7. I-soldering ayisayi kunkqonkqoza okanye ishukumise umlomo wentsimbi: ukunkqonkqoza okanye ukushukuma umlomo wentsimbi kuya kwenza umonakalo ongundoqo wobushushu kunye namaso enkcenkcesha atshize, anciphise ubomi benkonzo yombindi wokufudumeza, amaso enkcenkce ukuba atshizwe kwi-PCBA angenza isekethe emfutshane. , kubangela ukusebenza kakubi kombane.
8. sebenzisa isiponji samanzi amanzi ukususa i-soldering iron head oxide kunye ne-tin slag engaphezulu.Ukucoca umxholo wamanzi isiponji ngokufanelekileyo, isiqulatho samanzi ngaphezu nje kuphela asikwazi ukususa ngokupheleleyo intloko yentsimbi yokuthambisa kwi-shavings ye-solder, kodwa nangenxa yokuhla okubukhali kwiqondo lobushushu lentloko yentsimbi ye-solder (oku kutshitshiswa kwe-thermal kwintloko yentsimbi kunye into yokufudumeza ngaphakathi kwentsimbi, umonakalo mkhulu) kwaye uvelise ukuvuza, ukuthuthwa kobuxoki kunye nezinye izinto zokuthambisa ezingalunganga, intonga yamanzi entloko yentsimbi kwibhodi yesekethe iya kubangela ukubola kwebhodi yesekethe kunye nesekethe emfutshane kunye nezinye ezimbi, ukuba amanzi kancinane kakhulu okanye hayi unyango amanzi emanzi, oko Kuya kwenza umonakalo intloko yentsimbi yokudambisa, oxidation kwaye kukhokelela ukuba hayi kwitoti, efanayo lula unobangela ukusoda lobuxoki kunye nezinye soldering kakubi.Ngalo lonke ixesha ujonge umxholo wamanzi kwisiponji esifanelekileyo, ngelixa ubuncinci amaxesha ama-3 ngosuku ukucoca isiponji kwinkunkuma kunye nezinye izinto ezimdaka.
9. Ubungakanani betoti kunye ne-flux kufuneka ifaneleke xa i-soldering.I-solder eninzi, kulula ukubangela nokuba i-tin okanye igqume iziphene ze-welding, i-solder encinci kakhulu, i-solder iphantsi nje kuphela, kwaye ngenxa yomgangatho we-oxidation womphezulu wenziwa nzulu ngokuhamba kwexesha, kulula ukukhokelela ekuhlulekeni kwe-solder joint.Ukuguquguquka okuninzi kuya kungcolisa kwaye kudle i-PCBA, enokukhokelela ekuvuzeni kunye nezinye iziphene zombane, kuncinci kakhulu akusebenzi.
10. ngokufuthi gcina intloko yentsimbi ye-solder kwitoti: oku kunokunciphisa ithuba le-oxidation yentloko yentsimbi ye-solder, ukwenzela ukuba intloko yentsimbi ihlale ixesha elide.
11. I-solder spatter, iziganeko zeebhola ze-solder kunye nokusebenza kwe-solder zinobuchule kunye nobushushu bentloko yentsimbi;I-soldering flux i-spatter ingxaki: xa i-soldering iron yanyibilika ngokuthe ngqo i-solder, i-flux iya kutshisa ngokukhawuleza kwaye itshise, xa i-soldering, ithatha ucingo lwe-solder aludibanisi ngokuthe ngqo indlela yentsimbi, inokunciphisa i-flux spatter.
12. Xa i-soldering, qaphela ukuba ungenzi i-soldering iron ishushu malunga ne-plastic insulation layer of the wire kunye nomphezulu wamacandelo, ngakumbi xa u-soldering isakhiwo esincinci, imilo yeemveliso eziyinkimbinkimbi.
13. Xa i-soldering, kuyimfuneko ukuzivavanya.
a.Nokuba kukho ukuvuza kwe-welding.
b.Nokuba i-solder joint igudile kwaye igcwele, iyakhazimla.
c.Nokuba kukho intsalela yesolder ejikeleze ijoyinti yesolder.
d.Nokuba kukho netoti.
e.Nokuba iphedi icinyiwe.
f.Ingaba i-solder joint ineentanda.
g.Ingaba amalungu e-solder atsalile incam yento.
14. I-Welding, kodwa kwakhona kufuneka inikele ingqalelo kwimicimbi ethile yokhuseleko, inxibe imaski, kunye nefeni kunye nezinye izixhobo zokungenisa umoya ukuze kugcinwe umoya wesikhululo se-welding.
Kwi-welding manual PCBA, nikela ingqalelo kwezinye izilumkiso ezisisiseko, unokuphucula kakhulu ubugcisa bokuwelda kunye nomgangatho wemveliso.
Ixesha lokuposa: Mar-03-2022