Cov txheej txheem:
- Kauj ruam 1: Cov ntaub ntawv
- Kauj Ruam 2: Ntxuav Cov Puab Tshua
- Kauj ruam 3: Tuab si lug
- Kauj ruam 4: Soldering
- Kauj ruam 5: Kov Up
- Kauj Ruam 6: Ntxuav Flux
- Kauj ruam 7: Yeeb yaj duab
- Kauj Ruam 8: Lead lossis Lead Free Solder?
Video: SMD - Tes Soldering: 8 Kauj Ruam (nrog Duab)
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29
Cov lus qhia hais txog kev siv tes txhuam smd los ntawm cov hlau txuas, nrog cov hlau txuas, koj tuaj yeem siv yuav luag smd pob xws li 0805, 0603, 0402, 0201, 01005, QFP, QFN, PLCC, SOT23, DPAK, …
Kauj ruam 1: Cov ntaub ntawv
- Soldering hlau (tuaj yeem kho qhov kub tau 200 ~ 450 ° C)
Cov lus qhia soldering (txiav nto 45 ° lossis 60 °)
- Soldering daim txhuam cev
- Cov kab laug sab
- Tweezers
- Solder Wire (ceeb toom: tsis muaj hmoov txhuas xav tau kub ntau dua)
- Paste Flux (ceeb toom: qee yam siv tsuas yog siv cov hlau tsis muaj hmoov lead)
Rau qhov yooj yim soldering, kuv pom zoo siv cov hlau lead (Sn/Pb: 60/40 lossis 63/37) rau qhov kub tsawg
Kauj Ruam 2: Ntxuav Cov Puab Tshua
Ntxuav cov ntaub so kom tshem tawm oxidized
Koj tuaj yeem ntxuav nrog flux lossis tinning solder pads tom qab ntawd tshem tawm los ntawm cov kab laug sab laug
Kauj ruam 3: Tuab si lug
Piv txwv nrog QFP100 pob
- Muab tshuaj txhuam flux 2 cov ntsiab lus ntawm txoj haujlwm rov qab
- Muab qhov nti, siv ntiv tes lossis tweezers rau kev sib dhos kom haum nrog cov ntaub qhwv
- Siv ntiv tes lossis tweezers rau nias rau saum cov nti
Soldering 2 cov ntsiab lus rau cov nti ruaj khov
Kauj ruam 4: Soldering
- Muab tshuaj txhuam txhuam rau txhua tus pin ntawm ib sab ntawm nti
- Teeb tsa qhov kub kom sov Cov hlau tsis muaj Lead-free solder yuav tsum 350 ~ 400 ° C, Cov laug yuav tsum yog 315 ° C (± 30 °) (nyob ntawm qhov loj me me ntawm nti, pins, kab laug sab laug, kab hauv qab dav dav, heatsink muaj peev xwm ntawm nti thiab pcb)
- Tau txais cov kab laug sab txaus ntawm cov lus qhia soldering
- Kov ntawm tus thawj tus pin, rub mus rau tus pin kawg kom sai li sai tau (rub laug) lossis kov rau tus pin thawj, dhia mus rau tus pin tom ntej thiab txuas mus ntxiv tus pin kawg (tus pin rau tus pin soldering)
Kauj ruam 5: Kov Up
Qee zaum cov txheej txheem tsis zoo li qhov xav tau, zoo li cov choj, cov laug ntau dhau los lossis cov khoom sib dhos txias. Txhawm rau daws, siv cov flux thiab ntxig ntxig ntxig ntxig. Thaum kov, cov kab laug sab ntau dhau yuav txav mus rau cov lus qhia ntxaws, lossis koj tuaj yeem siv cov laug cam (tsis pom zoo)
Kauj Ruam 6: Ntxuav Flux
Rau kev zoo nkauj sib txuas, yuav tsum tau ntxuav kom huv txawm tias tsis muaj dej huv Koj tuaj yeem ntxuav cov dej ntws los ntawm cov cawv xws li IPA (isopropyl cawv) nrog wiper, paj rwb so, txhuam xim, txhuam hniav
Kauj ruam 7: Yeeb yaj duab
Thiab qee qhov lwm cov vis dis aus:
- Cov Pob Me Me: 0805, 0603, 0402, 0201, 01005
- SOIC, SSOP Pob
- QFN Pob
- Pob PLCC
- Cov Pob Ntim: Resistor Array, SOT23-6, SOT23-3, SOT89, SOT223, TO252 (DPAK), TO263 (D2PAK), TO263-5, Mini PushButton, Crystal HC49, Aluminium Capacitor, Hwj chim Inductor
Kauj Ruam 8: Lead lossis Lead Free Solder?
Cov vis dis aus los sib piv 5 cov hlau sib xyaw, tej zaum yuav pab tau rau koj xaiv hom kab laug sab
Pom zoo:
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