Hluav taws xob soldering hlau yog cov cuab yeej tsim nyog rau hluav taws xob kho vajtse engineers. Nws yog siv los txuas qee cov khoom siv hluav taws xob rau PCB motherboard rau kev saib xyuas, kev txheeb xyuas, kev tshuaj xyuas, thiab lwm yam.
Ua ntej, cia peb saib cov tsos ntawm ib qho yooj yimhluav taws xob soldering hlau: Nws feem ntau heats lub ntsis ntawm cov hlau soldering los ntawm kev hloov hluav taws xob rau hauv lub zog hluav taws xob. Feem ntau, qhov kub tuaj yeem ncav cuag 200 ~ 500 degree, yog li yog tias koj yuam kev kov cov hlau, koj yuav tsum txav nws mus. Tsis tas li ntawd, lub taub hau hlau yog yooj yim rau oxidized thiab qias neeg hauv huab cua tom qab cua sov, thiab cov tin yuav lo rau lwm zaus. Yog li ntawd, txhua zaus tom qab siv lub tshuab hluav taws xob, nws yog ib qho tsim nyog yuav tsum tau dipped qee cov tin hauv lub taub hau hlau kom tiv thaiv lub taub hau hlau los ntawm oxidized. Tom qab ntawd muaj cov khoom tsim nyog rau soldering, uas yog, solder, uas feem ntau hu ua tin hlau. Tam sim no, feem ntau siv lead-free tin hlau. Cov hlau lead hauv cov hlau lead hlau yog tshuaj lom thiab tsis zoo rau tib neeg (txawm tias cov yam ntxwv vuam zoo heev). Txawm li cas los xij, txawm hais tias cov hlau tsis muaj hlau lead tsis muaj hlau lead tsis muaj tshuaj lom, cov pa taws uas tsim los ntawm cov txheej txheem vuam kuj tseem phem rau tib neeg kev noj qab haus huv. Sim tsis txhob nqus nws. Xyuas kom tseeb tias koj nyob rau hauv ib qho chaw ventilated thaum siv nws. Nyob rau hauv cov txheej txheem vuam, koj kuj yuav tsum tau siv ib tug flux - rosin, uas yuav tshem tawm cov oxidized tin hlau nyob rau saum npoo los yog oxide txheej ntawm lub PCB nto, ua kom lub fluidity ntawm solder, thiab ua rau lub vuam ntau smoothly. cov cuab yeej tau npaj, vuam tuaj yeem pib.
Qhov hom vuam (pins txuas nrog PCB boards los ntawm qhov)
Cov kauj ruam yog thawj zaug hla cov pins sib txuas ntawm cov khoom sib txuas los ntawm PCB, tom qab ntawd siv lub taub hau ntawm cov hlau tin los ntswj qee cov rosin, thiab tom qab ntawd muab cov hluav taws xob soldering hlau nyob ze rau cov pins kom welded ntawm PCB (feem ntau yog 1. thib ob), thiab tom qab ntawd hu rau cov hlau nplaum nrog cov tin hlau dipped nrog rosin (tso rau hauv lossis sib npaug rau lub taub hau hlau, tsis yog ntawm lub taub hau hlau). Lub tin hlau yuav yaj nyob rau hauv qhov kub thiab txias ntawm lub taub hau soldering hlau, Tsis siv neeg qhwv tus pin thiab PCB cheeb tsam nyob rau hauv daim ntawv ntawm cov dej tee. Tom qab melting, tshem tawm sai sai, tshem tawm cov tin hlau, tab sis lub sij hawm no, tsis txhob tshem tawm lub taub hau soldering hlau, tuav lub taub hau soldering nyob rau hauv nws thawj txoj hauj lwm li 1 thib ob, thiab cia lub solder tag nrho yaj thiab ntws nyob ib ncig ntawm lub ncoo thiab hlau, thiaj li ua kom tiav tag nrho cov txheej txheem vuam zoo kawg nkaus. Yog lawm, tom qab vuam, yog tias cov pins ntawm cov khoom siv vuam ntev dhau lawm, cov pins rov qab yuav tsum tau txiav tawm. Rau patch hom hluav taws xob soldering hlau vuam, nws feem ntau yog qhov nyuaj tshaj li linear tho hom, vim tias qee zaum nws qhov loj me me, yog li kev ua haujlwm kuj tseem yuav tsum tau ua kom meej dua. Piv txwv li, ib tug 0603 kuj yuav tsum tau ib tug meej soldering lub taub hau, uas yog ntse dua.
Thaum vuam nws mus rau PCB, nws yog ib qho tsim nyog yuav tsum tau ua ntej de oxidize cov pob qij txha ntawm lub PCB, tom qab ntawd dipped ib qho me me ntawm cov tin rau ntawm PCB nto los ntawm cov hluav taws xob soldering hlau, tom qab ntawd tso qhov kev tawm tsam ntawm 0603 ntawm cov pob qij txha ntawm cov khoom siv. PCB los ntawm tweezers, thiab cua sov cov pob qij txha uas twb muaj tin los ntawm cov hluav taws xob soldering hlau kom tiav qhov vuam ntawm ib qho taw tes. Ib qho kev sib koom ua ke yuav tsum tau kho, thiab cov khoom tsis tuaj yeem txav mus ib ntus, yog li ntawd, lwm qhov kawg tuaj yeem ua qhov chaw welded nrog tin hlau kom tiav qhov vuam ntawm tag nrho 0603 tsis kam.
Hais txog cov txheej txheem, feem ntau siv sab tes xis los tuav cov hluav taws xob soldering hlau, thiab sab laug tes tuav lub tin hlau (los yog vice versa, nyob ntawm koj mus ob peb vas).
Tom qab kev ua haujlwm vuam tiav, koj tuaj yeem pom koj tus kheej cov txiaj ntsig vuam. Ib qho zoo welding muab tub lim hlau tag nrho npog lub ncoo thiab muaj cov xaim, uas yuav tsum tau ua haujlwm ntev.
Yuav ua li cas yog qhov vuam tsis raug lossis ua tsis tiav? Lub sijhawm no, cov khoom tuaj yeem raug tshem tawm los ntawm PCB lub rooj tsavxwm nrog lub tshuab hluav taws xob los yog lub tshuab cua kub rau kev rov vuam. Lub tin sab laug ntawm daim ntawv sib txuas hauv lub xeev tsis zoo tuaj yeem kho nrog tin absorbing daim kab xev. Nws tuaj yeem nqus tau cov tin hauv cov kua hauv lub xeev los ntawm cua sov cov hluav taws xob soldering hlau, thiaj li tshem tawm cov tin ntau dhau ntawm PCB.
Hluav taws xob soldering hlau accessories
Scaling hmoov