PCB (Printed Circuit Board) coatings ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv circuits los ntawm qhov hnyav sab nraud. Txawm li cas los xij, qee zaum, nws yuav tsum tau tshem tawm cov txheej txheem PCB los kho lossis hloov kho. Nyob rau hauv phau ntawv qhia no, peb yuav taug kev koj los ntawm cov kauj ruam kom muaj kev nyab xeeb thiab zoo tshem tawm cov txheej txheem PCB. Nrog cov txheej txheem thiab cov cuab yeej zoo, koj tuaj yeem ua tiav cov txheej txheem tshem tawm yam tsis muaj kev puas tsuaj rau cov khoom siv hluav taws xob.
1. Nkag siab txog cov txheej txheem PCB
Ua ntej dhia mus rau hauv cov txheej txheem tshem tawm, nws tsim nyog nkag siab txog hom PCB txheej uas koj yuav ntsib. Cov txheej txheem muaj xws li acrylic, epoxy, polyurethane, silicone, thiab parylene. Txhua hom muaj nws tus yam ntxwv thiab yuav tsum muaj kev tshem tawm tshwj xeeb. Ua ntej pib txheej txheem tshem tawm, nws yog ib qho tseem ceeb los txheeb xyuas cov txheej txheem siv ntawm PCB kom ntseeg tau tias siv txoj kev tsim nyog.
2. Kev ceev faj txog kev nyab xeeb
Kev nyab xeeb yuav tsum yog koj qhov tseem ceeb tshaj plaws thaum ua haujlwm nrog PCB txheej. Nco ntsoov hnav tsom iav, hnab looj tes, thiab daim npog qhov ncauj kom tiv thaiv koj tus kheej los ntawm cov pa taws. Tsis tas li ntawd, ua haujlwm nyob rau hauv qhov chaw muaj cua zoo kom txo tau cov khoom phom sij tsawg. Khaws lub tshuab tua hluav taws nyob ze thiab ua raws li tag nrho cov lus qhia txog kev nyab xeeb thiab cov lus qhia los ntawm cov chaw tsim tshuaj pleev xim.
3. Xaiv lub cuab yeej zoo
Txhawm rau tshem tawm cov txheej txheem PCB zoo, koj xav tau cov cuab yeej tshwj xeeb. Cov no tuaj yeem suav nrog cov chaw ua haujlwm cua kub, phom cua sov, cov hlau nplaum, cov riam muaj tseeb, thiab cov kev daws teeb meem PCB. Kev xaiv cov cuab yeej nyob ntawm hom txheej thiab qhov loj ntawm thaj chaw koj xav tshem tawm.
4. Kauj ruam-by-step deletion txheej txheem
- Kauj Ruam 1: Npaj PCB los ntawm kev tshem tawm cov khoom sib txuas, cov khoom sib txuas lossis cov xov hlau uas tuaj yeem cuam tshuam cov txheej txheem tshem tawm txheej txheej.
- Kauj Ruam 2: Txheeb xyuas hom txheej txheej. Acrylic thiab epoxy coatings feem ntau yuav softened thiab tshem tawm siv phom kub los yog cua kub rework chaw nres tsheb. Silicone lossis parylene coatings, ntawm qhov tod tes, yuav xav tau cov tshuaj strippers lossis cov kuab tshuaj tshwj xeeb.
- Kauj Ruam 3: Maj mam ua kom sov lub txheej uas siv cov txheej txheem tsim nyog, xyuas kom tsis txhob overheat lossis puas rau PCB.
- Kauj Ruam 4: Siv rab riam los yog lwm yam cuab yeej tsim nyog, ua tib zoo txhuam tawm cov txheej softened. Ceev faj kom tsis txhob ua kom puas lub hauv paus circuitry.
- Kauj Ruam 5: Tom qab tshem tawm feem ntau ntawm cov txheej, siv cov tshuaj ntxuav PCB kom tshem tawm cov khoom seem lossis cov khoom seem.
- Kauj Ruam 6: Yaug lub PCB kom huv si nrog isopropanol lossis dej deionized kom tshem tawm cov tshuaj ntxuav qhov seem.
- KAUJ RUAM 7: Cia lub PCB kom qhuav tag ua ntej rov sib dhos lossis ua lwm yam haujlwm.
5. Kev ceev faj tom qab tshem tawm
Tom qab ua tiav cov txheej txheem PCB tshem tawm, nws yog ib qho tseem ceeb uas yuav tau kuaj xyuas lub rooj tsavxwm kom muaj kev puas tsuaj. Tshawb xyuas cov khoom nqa lossis cov khoom puas, tawg vias, lossis cov khoom puas. Yog tias pom muaj teeb meem, lawv yuav tsum tau kho ua ntej ua haujlwm ntxiv.
Tshem tawm cov txheej txheem PCB yuav tsum ua siab ntev, precision thiab cov cuab yeej zoo. Los ntawm kev ua raws li cov txheej txheem ib ntus uas tau teev tseg hauv phau ntawv qhia no, koj tuaj yeem tshem tawm cov txheej txheem los ntawm PCBs. Nco ntsoov siv ceev faj, ua raws li cov lus qhia kev nyab xeeb, thiab ua raws li kev ceev faj tom qab disassembly kom ntseeg tau tias muaj kev ncaj ncees hauv Circuit Court. Zoo siab txheej tshem tawm!
Post lub sij hawm: Aug-14-2023