Ukusombulula iingxaki zeChip Resistor Soldering kwiPCB

Yazisa:

I-Chip resistors zizinto ezibalulekileyo ezisetyenziswa kwizixhobo ezininzi zombane ukuququzelela ukuhamba ngokufanelekileyo kunye nokuchasana. Nangona kunjalo, njengalo naliphi na elinye icandelo le-elektroniki, i-chip resistors inokuhlangabezana neengxaki ezithile ngexesha lenkqubo ye-soldering.Kule bhlog, siza kuxoxa ngezona ngxaki zixhaphakileyo xa i-soldering chip resistors, kubandakanywa umonakalo ovela kwi-surges, iimpazamo zokuxhathisa ukusuka kwiintanda ze-solder, i-resistor vulcanization, kunye nomonakalo ovela ekugqithiseni.

1. Umonakalo omkhulu kwizixhasi zetshiphu zefilimu:

Ukunyuka, ukonyuka ngequbuliso kumbane, kunokuchaphazela kakhulu ukusebenza kunye nokuqina kwezixhasi zefilimu eshinyeneyo. Xa utyando lwenzeka, amandla amaninzi anokuqukuqela kwi-resistor, ebangela ukufudumala kwaye ekugqibeleni umonakalo. Lo monakalo uzibonakalisa njengotshintsho kwixabiso lokumelana okanye ukungaphumeleli ngokupheleleyo kwe-resistor. Ke ngoko, kubalulekile ukuthatha amanyathelo okhuseleko malunga notyando ngexesha le-welding.

Ukunciphisa umngcipheko womonakalo owenziwe kukutyanda, cinga ukusebenzisa isixhobo sokhuselo lokutya okanye umcinezeli. Ezi zixhobo ziphambukisa ngokufanelekileyo amandla ombane agqithileyo kude ne-chip resistor, ngaloo ndlela ziyikhusela kubungozi obunokubakho. Kwakhona, qiniseka ukuba izixhobo zakho zokuwelda zibekwe ngokufanelekileyo ukunqanda ukwenzeka kotyando.

2. Impazamo yokuxhathisa i-chip resistors ebangelwa kukuqhekeka kwee-welding:

Ngethuba lenkqubo ye-soldering, ii-cracks zinokuthi zenze i-chip resistors, zibangele iimpazamo zokumelana. Ezi zintlukwano zidla ngokungabonakali ngeso lenyama kwaye ziyakwazi ukuphazamisa uqhagamshelwano lombane phakathi kweepadi ze-terminal kunye ne-resissive element, okubangelwa amaxabiso angachanekanga okumelana. Ngenxa yoko, ukusebenza ngokubanzi kwesixhobo sombane kunokuchaphazeleka kakubi.

Ukunciphisa iimpazamo zokuxhathisa ezibangelwa kukuqhekeka kwe-welding, amanyathelo amaninzi okuthintela anokuthathwa. Okokuqala, ukulungelelanisa iiparitha zenkqubo ye-welding kwiimfuno ezithile ze-chip resistor kunceda ukunciphisa umngcipheko wokuqhekeka. Ukongeza, ubuchule bokucinga obuphambili obunjengokuhlola iX-reyi bunokubona iintanda ngaphambi kokuba zenze umonakalo omkhulu. Ukuhlolwa komgangatho womgangatho kufuneka kwenziwe rhoqo ukuchonga nokulahla i-chip resistors echatshazelwa kukuqhekeka kwe-solder.

3. Vulcanization of resistors:

I-Vulcanization yenye ingxaki ekuhlangabezenwe nayo ngexesha lokuthengiswa kwezixhasi zetshiphu. Ibhekisa kwinkqubo apho izinto ezixhathisayo zingena kutshintsho lweekhemikhali ngenxa yokuvezwa ixesha elide kubushushu obugqithisileyo obuveliswa ngexesha le-welding. I-Sulfidation inokubangela ukuhla kokumelana, okwenza i-resistor ingafaneleki ukusetyenziswa okanye ibangele ukuba isiphaluka sisebenze ngokungalunganga.

Ukuthintela i-sulfidation, kubalulekile ukwandisa iiparamitha zenkqubo ye-soldering ezifana nobushushu kunye nobude bexesha ukuqinisekisa ukuba azidluli kwimida ekhuthazwayo ye-chip resistors. Ukongeza, ukusebenzisa iradiyetha okanye inkqubo yokupholisa kunokunceda ukuphelisa ubushushu obugqithisileyo ngexesha lenkqubo ye-welding kunye nokunciphisa amathuba okuba ne-vulcanization.

4. Umonakalo obangelwa kukulayisha kakhulu:

Enye ingxaki eqhelekileyo enokuthi ivele ngexesha le-soldering ye-chip resistors ngumonakalo obangelwa ukulayisha ngaphezulu. I-Chip resistors inokonakala okanye ingaphumeleli ngokupheleleyo xa iphantsi kwemisinga ephezulu edlula imilinganiselo yazo ephezulu. Umonakalo obangelwa kumthwalo omninzi unokubonakala njengotshintsho lwexabiso lokumelana, ukudinwa kwe-resistor, okanye umonakalo womzimba.

Ukuze ugweme umonakalo ovela kumthwalo ogqithiseleyo, izichasi ze-chip kufuneka zikhethwe ngononophelo kunye nokulinganisa kwamandla afanelekileyo ukusingatha okwangoku okulindelekileyo. Ukuqonda iimfuno zombane kwisicelo sakho kunye nokwenza izibalo ezichanekileyo kunokunceda ukuthintela ukulayishwa okugqithisileyo kwezixhasi zetshiphu ngexesha lokuthengisa.

Ukuququmbela:

I-soldering chip resistors ifuna ukuqwalaselwa ngononophelo kwizinto ezahlukeneyo ukuqinisekisa ukusebenza okufanelekileyo kunye nokuphila ixesha elide. Ngokujongana nemiba exutyushwa kule bhulogi, oko kukuthi umonakalo obangelwa ukunyuka, iimpazamo zokuchasana ezibangelwa ukuqhekeka kwe-solder, i-resistor sulfuration, kunye nomonakalo obangelwa ukugqithisa, abavelisi kunye nabathanda i-electronics banokuphucula ukuthembeka kunye nokusebenza kwezixhobo zabo zombane. Amanyathelo okuthintela afana nokuphunyezwa kwezixhobo zokukhusela i-surge, iteknoloji yokufumanisa i-crack, ukulungelelanisa imilinganiselo ye-soldering, kunye nokukhetha i-resistors kunye nokulinganisa amandla afanelekileyo kunokunciphisa kakhulu ukwenzeka kwezi ngxaki, ngaloo ndlela kuphuculwe umgangatho kunye nokusebenza kwezixhobo zombane usebenzisa i-chip resistors.