Covphom kubyog ib qho ntawm cov cuab yeej siv tshaj plaws hauv kev kho lub xov tooj ntawm tes, thiab cov txheej txheem yuav tsum tau muaj siab heev. Cov phom kub kub yog siv rau txhua yam los ntawm kev tshem tawm lossis txhim kho cov khoom me me mus rau qhov sib xyaw ua ke loj. Nyob rau hauv lub sijhawm sib txawv, muaj qhov tshwj xeeb uas yuav tsum tau ua rau qhov ntsuas kub thiab cua ntim ntawm cov phom cua kub. Yog tias qhov ntsuas kub tsawg dhau, cov khoom yuav raug soldered. Yog tias qhov kub thiab txias siab dhau lawm, cov khoom siv thiab cov khoom siv hluav taws xob yuav yog qhov phem tshaj plaws. Cov huab cua ntau dhau yuav tshuab cov khoom me me. Nyob rau tib lub sijhawm, kev xaiv cov phom cua sov kuj tseem ceeb heev. Tsis txhob xaiv rab phom cua kub qis vim yog tus nqi.
Cov lus qhia rau kev siv phom kub
1. Ua ntej siv, xyuas kom meej tias nws tau muaj kev ntseeg siab los tiv thaiv cov hluav taws xob zoo li qub ntawm lub cuab yeej los ntawm kev puas tsuaj rau cov khoom.
2. Nws yuav tsum tau hloov kho kom haum rau qhov ntsuas kub thiab cua ntim, thiab qhov kub thiab cua ntim ntawm cov phom cua kub yuav tsum tau kho raws li cov duab ntawm cov nozzles sib txawv thiab cov yam ntxwv ntawm kev ua haujlwm; Lub sij hawm desoldering ntawm cov khoom me me xws li resistors thiab capacitors yog li 5 vib nas this, thiab lub sij hawm IC desoldering yog 15 vib nas this. Thib ob, lub sijhawm BGA desoldering me me yog li 30 vib nas this, thiab lub sijhawm loj BGA desoldering yog li 50 vib nas this. Qhov kub thiab txias yog kho rau 4 cov ntaub ntawv. Thaum cov duab digital ATTEN850D siv lub A1130 nozzle, huab cua ntim tau hloov kho rau 3 cov ntaub ntawv, thiab qhov kub thiab txias tau hloov mus rau 350 degrees; Thaum tsis siv lub nozzle, cov huab cua ntim tau hloov mus rau 4.5 cov ntaub ntawv, thiab qhov kub thiab txias tau hloov mus rau 380 degrees).
3. Thaum tig lub hwj chim hloov, rab phom cua kub yuav tsum tau preheated rau qhov kub thiab txias ua ntej vuam. Thaum siv, cov hlau nplaum yuav tsum sib npaug ntawm cov khoom siv tsis tau ntawm 1 ~ 2CM saum toj no cov khoom; Thaum lub sij hawm desoldering txheej txheem, ua tib zoo saib xyuas cov khoom nyob ib puag ncig. kev ruaj ntseg.
4. Thaum txhim kho lub nozzle, tsis txhob siv lub zog ntau dhau, thiab tsis txhob ntaus lub workbench nrog cov hlau soldering kom muaj kev cuam tshuam zoo kom tsis txhob muaj kev puas tsuaj rau cov cua sov thiab cov iav kub.
5. Ceev faj heev hauv kev ua haujlwm kub. Tsis txhob siv rab phom cua kub ze ze ntawm cov pa hluav taws xob thiab cov khoom siv hluav taws xob. Ua tib zoo saib xyuas kev nyab xeeb ntawm tus kheej. Thaum hloov cov khoom, tua lub hwj chim thiab tos kom nws txias. Yog tias koj tsis siv nws ntev, koj yuav tsum rub tawm lub hwj chim ntsaws.
6. Tom qab ua haujlwm tiav, tua lub hwj chim hloov. Lub sijhawm no, lub sijhawm txias tsis siv neeg pib. Tsis txhob rub lub hwj chim ntsaws thaum lub caij txias.
Yuav siv rab phom cua sov li cas hauv cov xwm txheej sib txawv:
1. Sib cais CPU
Thaum sib cais CPU, tshem lub nozzle ntawm rab phom cua, kho qhov kub ntawm cov phom cua kub rau 6, thiab kho qhov ntim ntawm cov phom cua kub rau 7-8. Thaum qhov ntsuas kub tiag tiag yog 280-290 degrees, qhov siab ntawm rab phom cua ntawm CPU yog li 8CM. Yuav kom txawj, xws li: 3508 CPU, tshuab cua phom diagonally tshuab plaub sab ntawm CPU kom ntau li ntau tau los tshuab cua kub nyob rau hauv lub CPU, kom nws yooj yim los tshuab tawm lub CPU lawm.
2. Mainboard disconnection processing txoj kev
Feem ntau ntawm motherboard disconnection thiab taw tes poob yog tshwm sim los ntawm kev ua haujlwm tsis raug, tshwj xeeb tshaj yog cov kua nplaum nplaum CPU feem ntau yuav ua rau muaj kev cuam tshuam thiab taw tes poob hauv qab lub motherboard vim kev ua haujlwm tsis raug. Kuv yuav qhia kuv qhov kev paub ntawm kev txo qis CPU nrog kua nplaum rau koj:
1) Qhov ntsuas kub ntawm rab phom cua kub yog hloov mus rau 5.5, qhov ntsuas cua ntim ntawm rab phom cua kub tau hloov mus rau 6.5-7, qhov tseeb qhov kub yog 270-280 degrees, thiab CPU tau tshuab ncaj nce thiab nqis. Peb txhua tus paub tias cov sealant ntawm CPU feem ntau yog mos tom qab cua sov.
2) Ua ntej, kub thiab ntxuav cov kua nplaum nyob ib ncig ntawm CPU, thiab tom qab ntawd txav lub CPU. Thaum cua sov CPU, cia lub tin nyob rau hauv lub CPU yaj tusyees thaum lub CPU yog lifted, thiaj li yuav tsis muaj disconnection thiab taw tes poob.
3. Desoldering
Tshem tawm lossis soldering lub rooj zaum yas yas lossis lub rooj zaum hauv keyboard yog tib yam li tshem tawm qee lub tswb thiab tshem lub amp. Feem ntau yog tus tswv lub tshav kub thiab cua ntim ntawm rab phom kub.
4. Tshuab vuam
Vim li cas qee lub sij hawm luv luv tshwm sim thaum lub CPU tshiab lossis lwm yam BGA IC hloov? Kuv tus kheej qhov kev paub yog tias thaum tshuab vuam CPU lossis lwm yam BGA ICs, qhov tseem ceeb yog los ntxuav IC txoj hauj lwm ntawm motherboard BGA thiab siv flux. Lub IC kuj yuav tsum tau ntxuav thiab. Qhov tseem ceeb tshaj plaws yog ua tib zoo saib xyuas qhov tseeb ntawm IC ntawm lub motherboard. Thaum tshuab vuam lub CPU lossis lwm yam BGA IC txoj haujlwm, koj tsis tuaj yeem tshuab tin, txwv tsis pub IC yuav ua tsis ncaj. Cov cua ntim ntawm cov phom cua kub yuav tsum yog me me, thiab qhov kub yuav tsum nyob nruab nrab ntawm 270-280 degrees. Thaum tshuab thiab soldering IC, koj yuav tsum xyuam xim rau qhov luaj li cas ntawm cov pob solder kom tiv thaiv cov pob solder los ntawm dov ua ke thiab ua rau luv luv Circuit Court.
Cov teeb meem xav tau kev saib xyuas
1. Tsis txhob siv rab phom kub nrog cov tshuaj (yas) scrapers.
2. Thov tshem tawm cov xim qhuav ntawm lub nozzle lossis scraper tom qab siv kom tsis txhob muaj hluav taws kub.
3. Thov siv nws nyob rau hauv qhov chaw uas muaj cua zoo, vim tias cov khoom seem tshem tawm ntawm cov xim ntawm cov khoom siv lead ua yog tshuaj lom.
4. Tsis txhob siv rab phom kub ua lub tshuab ziab plaub hau.
5. Tsis txhob coj cua kub rau tib neeg lossis tsiaj.
6. Thaum siv rab phom cua kub los yog tsuas yog tom qab siv, tsis txhob kov tus kov ntawm lub nozzle. Cov phom cua kub yuav tsum tau ua kom qhuav, huv si thiab deb ntawm cov roj lossis roj.
7. Cov phom cua sov yuav tsum tau txias tag ua ntej nws tuaj yeem khaws cia.
Kev ntsuas kub
50 degree —-150 degree (122–300OF) Thaw cryovials
205 degree -230 degree (400-450 OF) Khoov cov kav dej yas los yog muag cov xim qhuav lossis hmoov
230 degree -290 degree ({2}} OF) kom soften cov nplaum
425 degree -455 degree (800-850 OF) softening solder
480 degree -510 degree (900 OF -950 OF) Loosen xeb bolts
520 degree - 550 degree (1000 OF - 1100 OF) Tshem tawm xim
550 degree --(1022 OF) pib zoom charcoal
