SMT hluav taws xob lub thev ua muaj me me thiab lub cev nyhav, thiab lub tshuab hluav taws xob yog cov yooj yim dua mus rau hauv qhov chaw ntawm lub qhov. Ib qho tseem ceeb ntawm txoj kev tiv thaiv SMD yog qhov kev ruaj siab ruaj khov thiab kev cia siab ntawm qhov Circuit Court, uas nce qhov kev vam meej ntawm qhov kev lag luam. Qhov no yog vim hais tias qhov chaw ntom saum npoo hluav taws xob tsis muaj cov hlau lead, uas txo txoj hlua hluav taws xob thiab kev sib txeeb ntawm kev sib nqus, uas yog qhov tshwj xeeb tshaj yog pom hauv cov xov hluav taws xob ntau thiab cov kev kub ceev cov circuits.
SMT fais fab kis tau los ntawm kev muab cov khoom nyob rau hauv cov ntaub qhwv thiab tom qab ntawd tso npe rau cov khoom siv khoob khoob rau cov khoom ua ke thiab cov pawm (tsis ntau dhau los tiv thaiv kom txhob muaj luv circuits), ces Siv 20W hauv cov cua kub hauv cov cua sov kom sib sib zog ua ke ntawm lub ncoo thiab SMT chip feem (kub yuav tsum 220 ~ 230 ° C). Tom qab lub kaus hniav yaj tas lawm, lub tshuab hlau hnyav tau raug tshem tawm. Tom qab cov laug lo solidifies, lub phom sij tiav lawm. Tom qab welding, koj siv tau cov tweezers los clamp lub Cheeb Tsam Cheeb Ntxoo los saib yog tias muaj looseness. Yog tias tsis muaj looseness (yuav tsum muaj zog heev), nws txhais tau hais tias lub vuam zoo. Yog tias muaj looseness, re-smear cov laug txig thiab re-weld raws li cov qauv saum toj no.
SMT hmoov txhim tiv thaiv kev tivthaiv kabmob: Thaum twg cov kabmob hnyav tag, yuav tsum tau siv rau lub kav hlau tiv thaiv kab hlau, thiab tag nrho cov kev ua yuav tsum tau muaj ntaub nplaum nrog lub taub ntub dej. Kov qhov kawg ntawm txhua tus pin ntawm lub nti nrog ib tus kav hlau tiv thaiv kab hlau kom txog thaum koj pom cov kab laug ntws mus rau hauv lub koob. Khaws cov taub hlau ntawm cov kav hlau los ua ke nrog cov hlau txhuam hauv cov kab mob thaum lub caij hnyav kom tiv thaiv kev sib tshooj ntawm ntau cov khoom hnyav.
Tom qab plhuav tag nrho cov kev ua, ua rau txhua lub pins ntub dej los ntxuav cov laug. Tshem cov kaus mom ntau tshaj qhov uas xav tau kom tshem tawm cov luv luv thiab overlaps. Thaum kawg, siv tus pas txhuam caws kom kuaj xyuas cov pob yas qij txha. Tom qab kuaj tas, tshem cov dej dawb los ntawm pawg thawj coj thiab tshem cov txhuam tawv nrog cawv thiab ua tib zoo so los ntawm cov hmoov txhuas kom txog thaum cov kua flux disappears.