Ukuxazulula Izinkinga Ezivamile Ze-Chip Resistor Soldering ku-PCB

Yethula:

Ama-chip resistors ayizingxenye ezibalulekile ezisetshenziswa kumishini eminingi ye-elekthronikhi ukuze kube lula ukugeleza nokumelana kwamanje okufanele. Kodwa-ke, njenganoma iyiphi enye ingxenye ye-elekthronikhi, ama-chip resistors angase ahlangabezane nezinkinga ezithile ngesikhathi senqubo yokuhlanganisa.Kule bhulogi, sizoxoxa ngezinkinga ezivame kakhulu lapho i-soldering chip resistors, kuhlanganise nokulimala okuvela ekukhuphukeni, amaphutha okumelana nokuqhekeka kwe-solder, i-resistor vulcanization, nokulimala okuvela ekulayishweni ngokweqile.

1. Ukwanda komonakalo kuma-hisk resistors wefilimu:

Ukwenyuka, ukwenyuka okungazelelwe kwamandla kagesi, kungathinta kakhulu ukusebenza nokuqina kwezimbangi zefilimu eziwugqinsi. Uma kwenzeka ukuhlinzwa, amandla amaningi angageleza ku-resistor, okubangela ukushisa ngokweqile futhi ekugcineni alimale. Lo monakalo uzibonakalisa njengezinguquko zenani lokumelana noma ngisho nokwehluleka okuphelele kwe-resistor. Ngakho-ke, kubalulekile ukuthatha izinyathelo zokuqapha ngokumelene nokuhlinzwa ngesikhathi sokushisela.

Ukuze unciphise ingcuphe yomonakalo odalwa ukuhlinza, cabanga ukusebenzisa idivayisi yokuvikela ukuhlinza noma isicindezeli sokuhlinza. Lawa madivayisi adlulisela ngempumelelo i-voltage eyeqile kude ne-chip resistor, ngaleyo ndlela ayivikele ekulimaleni okungaba khona. Futhi, qiniseka ukuthi imishini yakho yokushisela isekelwe kahle ukuze uvimbele ukwenzeka kokuhlinzwa.

2. Iphutha lokumelana lama-chip resistors elibangelwa imifantu yokushisela:

Phakathi nenqubo ye-soldering, imifantu ingase yakheke kuma-chip resistors, okubangela amaphutha okumelana. Le mifantu ngokuvamile ayibonakali ngeso lenyama futhi ingaphazamisa ukuxhumana kukagesi phakathi kwamaphedi etheminali kanye nesici sokumelana, okuholela emananini anganembile wokumelana. Ngenxa yalokho, ukusebenza kukonke kwedivayisi ye-elekthronikhi kungase kuthinteke kabi.

Ukunciphisa amaphutha okumelana okubangelwa imifantu yokushisela, izinyathelo eziningana zokuvimbela zingathathwa. Okokuqala, ukulungisa amapharamitha wenqubo yokushisela ngokwezidingo ezithile ze-chip resistor kusiza ukunciphisa ubungozi bokuqhekeka. Ukwengeza, amasu okuthwebula athuthukile njengokuhlola i-X-ray angathola imifantu ngaphambi kokuba adale noma yimuphi umonakalo omkhulu. Ukuhlolwa kokulawulwa kwekhwalithi kufanele kwenziwe njalo ukuze kuhlonzwe futhi kulahle izinto eziphikisana ne-chip ezithinteke ngokuqhekeka kwe-solder.

3. I-Vulcanization yama-resistors:

I-Vulcanization ingenye inkinga okuhlangatshezwane nayo ngesikhathi sokusoda kwama-chip resistors. Kubhekiselwa kunqubo lapho izinto ezikwazi ukumelana namakhemikhali zishintsha khona amakhemikhali ngenxa yokuchayeka isikhathi eside ekushiseni okweqile okukhiqizwa ngesikhathi sokushisela. I-sulfidation ingabangela ukwehla kokumelana, okwenza i-resistor ingafaneleki ukusetshenziswa noma ibangele ukuthi isifunda sisebenze ngokungalungile.

Ukuze uvimbele i-sulfidation, kubalulekile ukuthuthukisa imingcele yenqubo ye-solder efana nezinga lokushisa nobude besikhathi ukuze kuqinisekiswe ukuthi aweqeli imikhawulo enconyiwe yama-chip resistors. Ukwengeza, ukusebenzisa irediyetha noma isistimu yokupholisa kungasiza ekukhipheni ukushisa okudlulele ngesikhathi senqubo yokushisela futhi kunciphise amathuba okuba ne-vulcanization.

4. Umonakalo odalwe ukulayisha ngokweqile:

Enye inkinga evamile engavela ngesikhathi sokufakwa kwe-chip resistors umonakalo obangelwa ukulayisha ngokweqile. Izinqamuleli ze-chip zingalimala noma zehluleke ngokuphelele uma zingaphansi kwemisinga ephezulu edlula izilinganiso zazo eziphezulu. Ukulimala okubangelwa ukulayisha ngokweqile kungase kubonakale njengokushintsha kwenani lokumelana, ukutubeka kwe-resistor, noma ukulimala ngokomzimba.

Ukuze ugweme umonakalo ovela ekulayisheni ngokweqile, izinto eziphikisa ama-chip kufanele zikhethwe ngokucophelela ngesilinganiso samandla esifanele ukuze kusingathwe isimanje esilindelekile. Ukuqonda izidingo zikagesi zohlelo lwakho lokusebenza nokwenza izibalo ezifanele kungasiza ekuvimbeleni ukugcwala ngokweqile kokumelana nama-chip ngesikhathi sokusoda.

Ekuphetheni:

I-soldering chip resistors idinga ukucatshangelwa ngokucophelela kwezici ezihlukahlukene ukuze kuqinisekiswe ukusebenza okufanele nokuphila isikhathi eside. Ngokubhekana nezinkinga okuxoxwe ngazo kule bhulogi, okungukuthi umonakalo obangelwa ukuqhuma, amaphutha okumelana okubangelwa imifantu ye-solder, i-resistor sulfuration, kanye nomonakalo obangelwa ukulayisha ngokweqile, abakhiqizi kanye nabathanda izinto ze-elekthronikhi bangathuthukisa ukuthembeka nokusebenza kwemishini yabo ye-elekthronikhi. Izinyathelo zokuvimbela ezifana nokusebenzisa amadivayisi okuvikela ukukhuphuka, ubuchwepheshe bokutholwa kokuqhekeka, ukuqinisa amapharamitha wokusoda, nokukhetha izinqamuleli ezinezilinganiso zamandla ezifanele kunganciphisa kakhulu ukuvela kwalezi zinkinga, ngaleyo ndlela kuthuthukise ikhwalithi nokusebenza kwamadivayisi kagesi kusetshenziswa izihlungi ze-chip.