Alikho igolide, akekho ophelele”, kanjalo nebhodi le-PCB.Ku-PCB welding, ngenxa yezizathu ezihlukahlukene, amaphutha ahlukahlukene avame ukuvela, njengokushisela okubonakalayo, ukushisa ngokweqile, ibhuloho nokunye.Lesi sihloko, Sichaza ngokuningiliziwe izici zokubukeka, izingozi kanye nokuhlaziywa kwembangela yezinkinga ezivamile eziyi-16 zokunamathisela ze-PCB.
01
Ukushisela
Izici zokubukeka: Kukhona umngcele omnyama ocacile phakathi kwe-solder kanye nokuhola kwengxenye noma nge-foil yethusi, futhi i-solder ihlehliswa ngasemngceleni.
Ukulimala: Ukungasebenzi kahle.
Ukuhlaziywa kwembangela:
Imikhondo yezingxenye ayihlanzwa, ifakwe ithini noma i-oxidized.
Ibhodi eliphrintiwe alihlanzekile, futhi i-flux efafaziwe ingeyekhwalithi embi.
02
Ukuqoqwa kwe-solder
Izici zokubukeka: Isakhiwo esihlangene se-solder sikhululekile, simhlophe futhi asifihli.
Ingozi: Amandla emishini anganele, mhlawumbe ukushisela okungamanga.
Ukuhlaziywa kwembangela:
Ikhwalithi ye-solder ayilungile.
Izinga lokushisa le-soldering alanele.
Uma i-solder ingaqinisiwe, ukuhola kwengxenye kuyakhululeka.
03
I-solder eningi kakhulu
Izici zokubukeka: Ingaphezulu le-solder liyi-convex.
Ingozi: I-solder kadoti, futhi ingase ibe nezinkinga.
Ukuhlaziywa kwesizathu: ukuhoxiswa kwe-solder kuphuze kakhulu.
04
I-solder encane kakhulu
Izici zokubukeka: Indawo yokunamathisela ingaphansi kwama-80% we-pad, futhi i-solder ayenzi indawo eguquguqukayo ebushelelezi.
Ingozi: amandla emishini anganele.
Ukuhlaziywa kwembangela:
I-solder fluidity impofu noma i-solder ikhishwa kusenesikhathi.
Ukuguquguquka okunganele.
Isikhathi sokushisela sifushane kakhulu.
05
I-Rosin Welding
Izici zokubukeka: I-rosin slag iqukethe i-weld.
Ingozi: Amandla anganele, ukuqhubeka kabi, futhi ingase ivulwe futhi ivalwe.
Ukuhlaziywa kwembangela:
Amashisela amaningi kakhulu noma ahlulekile.
Isikhathi sokushisela esinganele kanye nokushisisa okunganele.
Ifilimu ye-oxide engaphezulu ayisuswa.
06
ukushisa ngokweqile
Izici zokubukeka: amajoyinti amhlophe e-solder, akukho luster metallic, indawo emangelengele.
Ingozi: Iphedi kulula ukuyixebula futhi amandla ayancipha.
Ukuhlaziywa kwesizathu: amandla ensimbi ye-solder makhulu kakhulu, futhi isikhathi sokushisa side kakhulu.
07
Ukushisela okubandayo
Izici zokubukeka: ubuso buba yizinhlayiya ezifana ne-tofu, futhi ngezinye izikhathi kungase kube nokuqhekeka.
Ukulimala: Amandla aphansi kanye nokungahambi kahle kahle.
Ukuhlaziywa kwesizathu: i-solder jitters ngaphambi kokuba iqine.
08
Ukungenwa kahle
Izici zokubukeka: Ukuxhumana phakathi kwe-solder ne-weldment kukhulu kakhulu futhi akubushelelezi.
Ingozi: Amandla aphansi, awatholakali noma avuliwe noma avaliwe.
Ukuhlaziywa kwembangela:
I-weldment ayihlanzwa.
Ukuguquguquka okunganele noma ikhwalithi ephansi.
I-weldment ayishisi ngokwanele.
09
I-asymmetry
Izici zokubukeka: i-solder ayigelezi phezu kwephedi.
Ukulimala: Amandla anganele.
Ukuhlaziywa kwembangela:
I-solder ayinamanzi amancane.
Ukuguquguquka okunganele noma ikhwalithi ephansi.
Ukushisa okunganele.
10
Okuxekethile
Izici zokubukeka: Intambo noma ingxenye yomthofu ingasuswa.
Ubungozi: Kubi noma okungaqhubeki.
Ukuhlaziywa kwembangela:
Ukuhola kuhamba ngaphambi kokuba i-solder iqiniswe futhi ibangele isikhala.
Umthofu awucutshungulwa kahle (umpofu noma awumanziswanga).
11
Lola
Izici zokubukeka: bukhali.
Ukulimala: Ukubukeka kabi, kulula ukubangela amabhuloho.
Ukuhlaziywa kwembangela:
I-flux incane kakhulu futhi isikhathi sokushisisa side kakhulu.
I-engeli yokuphuma engafanele yensimbi yokunamathisela.
12
ibhuloho
Izici zokubukeka: izintambo eziseduze zixhunyiwe.
Ingozi: Isifunda esifushane sikagesi.
Ukuhlaziywa kwembangela:
I-solder eningi kakhulu.
I-engeli yokuphuma engafanele yensimbi yokunamathisela.
13
Iphinikhodi
Izici zokubukeka: ukuhlola okubonakalayo noma izikhulisamandla ezinamandla aphansi zingabona izimbobo.
Ingozi: Amandla anganele kanye nokugqwala okulula kwamalunga e-solder.
Ukuhlaziywa kwesizathu: igebe phakathi komthofu nembobo yephedi likhulu kakhulu.
14
ibhamuza
Izici zokubukeka: kukhona iqhubu le-solder eliphefumula umlilo empandeni yomthofu, futhi umgodi ufihliwe ngaphakathi.
Ingozi: Ukuqhutshwa kwesikhashana, kodwa kulula ukubangela ukungahambi kahle isikhathi eside.
Ukuhlaziywa kwembangela:
Kukhona igebe elikhulu phakathi komthofu kanye nembobo yephedi.
Ukungena kahle komthofu.
Isikhathi sokushisela sepuleti elinezinhlangothi ezimbili elixhuma imbobo side, futhi umoya osembobeni uyakhula.
15
I-copper foil ivaliwe
Izici zokubukeka: I-foil yethusi ihlutshiwe ebhodini eliphrintiwe.
Ingozi: Ibhodi eliphrintiwe lonakele.
Ukuhlaziywa kwesizathu: isikhathi sokushisela side kakhulu futhi izinga lokushisa liphezulu kakhulu.
16
Hluba
Izici zokubukeka: amalunga e-solder aphuma ku-foil yethusi (hhayi i-copper foil kanye nebhodi eliphrintiwe elixebukayo).
Ingozi: Vula isifunda.
Ukuhlaziywa kwesizathu: ukufakwa kwensimbi embi kuphedi.