Welding bụ SMT mgbawa nhazi usoro dị oké mkpa njikọ, ma ọ bụrụ na a njikọ ọkọnọ emehie ga ozugbo emetụta mgbawa nhazi sekit osisi okpu na ọbụna scrapped, ya mere na ịgbado ọkụ mkpa ịghọta ziri ezi ịgbado ọkụ usoro, ịghọta mkpa okwu nke anya zere. nsogbu.
1. na mgbawa nhazi tupu ịgbado ọkụ na mpe mpe akwa ntekwasa na flux, na-eji a soldering ígwè obibi otu ugboro, iji zere pads na-emezighituri tinned ma ọ bụ oxidized, guzobe nke ọjọọ ịgbado ọkụ, mgbawa bụ n'ozuzu adịghị mkpa obibi. .
2. Jiri tweezers jiri nlezianya tinye mgbawa PQFP na bọọdụ PCB, kpachara anya ka ị ghara imebi ntụtụ.Hazie ya na pads ma hụ na etinyere mgbawa ahụ n'ụzọ ziri ezi.Tọọ okpomọkụ nke ígwè a na-ere ere ihe karịrị 300 degrees Celsius, gbanye ọnụ ọnụ ígwè ahụ n'ime obere ihe na-ere ahịa, pịa mgbawa ahụ na ngwá ọrụ a kwadoro n'ọnọdụ ahụ, gbakwunye obere ego na-ere ahịa. abụọ diagonally n'ọnọdụ atụdo, ka na-pịa ala na mgbawa na solder abụọ diagonally positioned atụdo nke mere mgbawa na-obere na-enweghị ike ịkwaga.Mgbe ị rechara diagonal ahụ, lelee ọnọdụ mgbawa ahụ site na mmalite ka ịhụ ma ọ dabara na ya.Ọ bụrụ na ọ dị mkpa, dozie ma ọ bụ wepụ ma dozie ọnọdụ dị na PCB site na ọkọ.
3. Malite ịgbado ọkụ niile atụdo, ị kwesịrị ị na-agbakwunye solder n'ọnụ ọnụ nke soldering ígwè, niile atụdo ga-kpuchie na solder ka atụdo na-arapara na mmiri.Metụ nsọtụ ntụtụ ọ bụla nke mgbawa ahụ n'ọnụ ọnụ igwe a na-ere ere ruo mgbe ị hụrụ ka ihe na-ere ere na-eruba na ntụtụ.Mgbe ị na-ere ere, rapara n'ọnụ ọnụ igwe na-ere ya na ntụtụ ndị a na-ere ere n'otu n'otu ka ịzenarị ndakọrịta n'ihi oke ire ere.
4. Mgbe emechara atụdo niile, weta ntụtụ niile na solder ka ọ dị ọcha.Z mgbe iji tweezers na-elele ma ọ bụ ụgha solder, lelee mmecha, si sekit osisi ntekwasa na flux, ga-adịtụ mfe SMD resistive components solder ụfọdụ, ị nwere ike ibu ụzọ na a solder point na tin, wee tinye na otu njedebe nke akụrụngwa, na tweezers iji jide akụrụngwa, solder n'otu akụkụ, wee hụ ma etinye ya nke ọma;ọ buru na edowo ya nke-ọma, were-ere ya n'elu nke-ọzọ, ọ buru na ọ bu, rere nsọtu nke-ọzọ.Ọ dị mkpa ọtụtụ omume iji ghọta nka ịre ahịa.
Atụmatụ nke NeoDen IN12Creflow oven
1. Ejiri usoro ịgbado ọkụ ọkụ ọkụ na-arụ ọrụ, nzacha nke ọma nke gas na-emerụ ahụ, ọdịdị mara mma na nchebe gburugburu ebe obibi, ihe ndị ọzọ kwekọrọ na iji gburugburu ebe dị elu.
2. Usoro nchịkwa nwere njirimara nke njikọta dị elu, nzaghachi oge, ọnụ ọgụgụ ọdịda dị ala, mmezi dị mfe, wdg.
3. The ojiji nke elu-arụmọrụ aluminum alloy kpo oku efere kama kpo oku tube, ma ume-azọpụta ma rụọ ọrụ nke ọma, tụnyere yiri reflow ovens na ahịa, mpụta okpomọkụ deviation na-budata belata.
4. Ihe mkpuchi mkpuchi mkpuchi okpomọkụ, enwere ike ịchịkwa okpomọkụ nke shei nke ọma.
5. Njikwa ọgụgụ isi, ihe mmetụta okpomọkụ dị elu, nkwụsị okpomọkụ dị irè.
6. Omenala-mepụtara track mbanye moto dị ka e ji mara nke B-ụdị ntupu eriri, iji hụ na edo ọsọ na ogologo ndụ.
Oge nzipu: Dec-13-2022