Kuyini Ukubaluleka Kwe-Flux?

I-NeoDen IN12 i-reflow oven

I-Flux iyinto ebalulekile yokusiza ekushiseleni ibhodi lesifunda le-PCBA.Ikhwalithi ye-flux izothinta ngqo ikhwalithi yereflow oven.Ake sihlaziye ukuthi kungani i-flux ibaluleke kangaka.

1. umgomo we-welding we-flux

I-Flux ingaba nomphumela wokushisela, ngoba ama-athomu ensimbi asondelene ngemva kokusabalalisa, ukuchithwa, ukungena kanye neminye imiphumela.Ngaphezu kwesidingo sokuhlangabezana nokususwa kwama-oxide nokungcola ekusebenzeni kokusebenza, kodwa futhi nokuhlangabezana nokungagqwali, ukwahlukanisa, ukumelana nomswakama, ukuzinza, ukungabi nangozi, ubumsulwa nezinye izidingo.Ngokuvamile, izingxenye zayo eziyinhloko ziyi-ejenti esebenzayo, ifilimu - izinto zokwakha, izithasiselo, ama-solvents nokunye.

2. Susa i-oxide ebusweni bensimbi eshiselwe

Endaweni evamile yomoya, kuvame ukuba nama-oxide athile endaweni yensimbi ye-welding pad.Lawa ma-oxide azoba nomthelela othile ekumanziseni kwe-solder ngesikhathi senqubo yokushisela, okuzothinta inqubo yokushisela kanye nemiphumela yokushisela.reflow soldering umshini.Ngakho-ke, i-flux idinga ukukwazi ukunciphisa ama-oxides, futhi ukushiselwa kokucubungula kwe-PCBA kungenziwa ngokujwayelekile.

3. Ukuvimbela i-oxidation yesibili

Enqubweni yokushisela yokucubungula kwe-PCBA, ukufudumeza kuyadingeka.Kodwa-ke, ngesikhathi sokushisa, i-oxidation esheshayo izokwenzeka endaweni yensimbi ngenxa yokwanda kwezinga lokushisa.Ngalesi sikhathi, i-flux iyadingeka ukuze ibambe iqhaza ekuvimbeleni i-oxidation yesibili.

4. Yehlisa ukushuba kwe-solder encibilikisiwe

Ngenxa yesimo somzimba, indawo encibilikisiwe ye-solder izoba nokungezwani okuthile, futhi ukungezwani okungaphezulu kuzoholela ejubaneni lokugeleza kwe-solder endaweni yokushisela ukuze kuthinte ukumanzisa okujwayelekile enqubweni yokushisela, kanye nomsebenzi we-flux kulokhu. isikhathi ukunciphisa ukungezwani ebusweni solder liquid, ukuze wettability kungaba ngcono kakhulu.