Izimo ezidingekayo zeI-PCB yokuthengisaAmabhodi Wokujikeleza

1.I-weldentiment kumele ibe nokushiswa okuhle

Lokhu okubizwa ngokuthi ukuthengisa kubhekisele ekusebenzeni kwe-alloy ukuthi impahla yensimbi ibekwe futhi umthengisi angakha inhlanganisela enhle emazingeni okushisa afanele. Akuzona zonke izinsimbi ezinokushelela okuhle. Ezinye izinsimbi, njenge-chromium, i-molybdenum, eTungsten, njll. Ezinye izinsimbi, ezinjengethusi, zethusi, njll., zinokufudumala okungcono. Ngesikhathi se-welding, izinga lokushisa eliphakeme libangela ifilimu le-oxide ukuze athole indawo yensimbi, ethinta ukushona okuqukethwe. Ukuze uthuthukise ukuzenzisa, ukufakwa kwamapulangwe kwe-Tin Surface, amaplanethi wesiliva nezinye izinyathelo zingasetshenziswa ukuvikela i-oxidation of the matver.

2.Ukungaphezulu kwe-weldentiment kumele kugcinwe kuhlanzekile

Ukuze uzuze inhlanganisela enhle yokuthengisa kanye ne-weldentint, indawo yokushiswa ye-welding kumele igcinwe ihlanzekile. Ngisho nasezinhlangothini ezinama-weldaality amahle, amafilimu e-oxide kanye namabala kawoyela alimazayo ekumazimeni angakhiqizwa ebusweni be-weldentiment ngenxa yokugcina noma ukungcoliswa. Ifilimu elingcolile kufanele lisuswe ngaphambi kokushiswa, uma kungenjalo ikhwalithi ye-welding ayinakuqinisekiswa. Izendlalelo ze-oxide ezimnene ezisendaweni yensimbi zingasuswa yi-flux. Izindawo zensimbi ezinama-oxidation alukhuni kufanele zisuswe ngezindlela zemishini noma zamakhemikhali, njengokuhlanza noma ukukha.

3.Sebenzisa uFlux ofanele

Umsebenzi weFlux ukususa ifilimu le-oxide ebusweni be-weldentiment. Izinqubo ezahlukahlukene ze-welding zidinga ama-fluxes ahlukene, njenge-nickel-chromium alloy, insimbi engenacala, i-aluminium nezinye izinto zokwakha. Kunzima ukuthengisa ngaphandle kokuzinikezela okukhethekile okukhethekile. Lapho imikhiqizo ye-Welding Precision kagesi efana namabhodi wesifunda aphrintiwe, ukuze enze i-welding ethembekile futhi ezinzile, i-flux esekwe e-rosin ivame ukusetshenziswa. Ngokuvamile, utshwala busetshenziselwa ukuncibilikisa i-rosin emanzini e-rosin.

4. I-weldentiment kumele ifudunyezwe emazingeni okushisa afanele

Ngesikhathi se-Welding, umsebenzi wamandla ashisayo ukuncibilikisa umthengisi futhi ushise into ye-welding, ukuze ama-athomu we-tin kanye ne-lead athole amandla anele ukungena ngaphakathi kwe-crystal lattice ebusweni be-forver. Uma izinga lokushisa le-welding liphansi kakhulu, lizoba yingozi ekungeneni kwama-athomu we-solder, okwenza kube nzima ukwakha i-alloy, futhi kulula ukwakha i-solder yamanga. Uma izinga lokushisa le-welding liphezulu kakhulu, umthengisi uzoba sesimweni esingewona ama-eutectic, ukusheshisa ukubola kanye nezinga lokuzithandela kwe-Flux, okubangela ikhwalithi yomthengisi ukuwohloka, futhi ezimweni ezinzima, kungadala amaphakethe ebhodini lokuphrinta eliphrintiwe. Okudinga ukugcizelelwa ukuthi hhayi kuphela umthengisi okufanele afudumele ukuze ancibilike, kepha i-weldentiment kufanele futhi ifudunyezwe emazingeni okushisa angancibilika umthengisi.

5. I-Welding Time efanelekile

Isikhathi se-Welding sisho isikhathi esidingekayo soshintsho ngokomzimba nangamakhemikhali phakathi nenqubo yonke ye-welding. Kubandakanya isikhathi se-Metal ukuthi bahlaselwe ukuze bafinyelele emazingeni okushisa we-welding, isikhathi sokuncibilika saso solder, isikhathi sokusebenza ukuze sisebenze nesikhathi se-alloy yensimbi. Ngemuva kokuthi izinga lokushisa le-welding linqunywe, isikhathi esifanelekile se-welding kufanele sinqunywe ngokuya ngesimo, imvelo, kanye nezimpawu zezingxenye ezizofakwa. Uma isikhathi se-welding side kakhulu, izakhi noma izingxenye zokushisa zizonakaliswa kalula; Uma isikhathi se-welding sifushane kakhulu, izidingo ze-welding ngeke zihlangatshezwe. Ngokuvamile, isikhathi esiphezulu sokuhlanganiswa kwe-solder ngayinye okufanele sibe selded asikho ngaphezulu kwemizuzwana emi-5.