PCB Rov Ua Haujlwm
Tom qab kev soj ntsuam PCBA tiav, PCBA uas tsis tas yuav tsum tau kho. Lub tuam txhab muaj ob txoj hauv kev los kho covSMT PCBA.
Ib qho yog siv cov roj kub kub tas mus li hlau ua haujlwm (phau ntawv vuam) rau kev kho, thiab lwm qhov yog siv cov khoom siv kho (cua kub vuam) rau kev kho. Tsis muaj teeb meem twg txoj kev saws, nws yuav tsum los ua ib tus zoo ham nyob rau hauv lub sijhawm luv tshaj plaws.
Yog li no, thaum siv hlau soldering, nws yuav tsum ua kom tiav cov ntsiab lus soldering hauv tsawg dua 3 vib nas this, nyiam dua li 2 vib nas this.
Txoj kab uas hla ntawm cov hlau cam yuav tsum tau ua ntej kom siv txoj kab uas hla diameter0.8 hli, lossis siv φ1.0mm, tsis φ1.2mm.
Soldering hlau kub qhov chaw: ib txwm vuam hlau rau 380 iav, siab kub vuam hlau mus rau 420 iav.
Ferrochrome rework qauv yog phau ntawv vuam
1. Kev kho cov hlau tshiab soldering ua ntej siv:
Tus hlau soldering tshiab tuaj yeem siv tau nquag tom qab cov lus qhia ntawm soldering hlau yog plated nrog txheej txheej cam ua ntej siv. Thaum cov hlau soldering siv rau lub sijhawm, oxide txheej yuav tsim rau thiab ib ncig ntawm cov hniav ntawm cov hlau soldering, uas yuav ua teeb meem rau" noj tin" ;. Lub sijhawm no, txheej txheej oxide tuaj yeem foob, thiab cov kab mob yuav rov ua dua.
2. Yuav ua li cas tuav cov hlau soldering:
Rov qab tuav: Siv tsib ntiv tes los tuav ntawm tes hlau soldering hauv koj xib teg. Hom no haum rau lub zog hluav taws xob fais fab txuas rau cov khoom sib dhos nrog cov cua sov ua kom sov.
Ortho-tuav: Tuav tuav ntawm cov hlau soldering nrog plaub ntiv tes tshwj tsis yog tus ntiv tes xoo, thiab nias tus ntiv tes xoo raws cov kev taw qhia ntawm cov hlau soldering. Lub suab soldering siv nyob rau hauv hom no kuj tseem loj, thiab feem ntau ntawm lawv yog cov lus qhia nkhaus soldering hlau.
Tus cwj mem tuav txoj kev: tuav lub tshuab hluav taws xob soldering hlau, zoo li tuav tus cwj mem, yog qhov haum rau lub zog hluav taws xob cov roj hluav taws xob txuas rau qhov txuas ntawm qhov me me kom tau txais welded.
3. Cov kauj ruam vuam: thaum lub sijhawm siv vuam, cov cuab yeej yuav tsum tau muab tso rau kom zoo, thiab lub tshuab hluav taws xob tooj hlau yuav tsum muab kho kom ruaj. Feem ntau, nws yog qhov zoo uas yuav tau siv cov raj ua puab cov hlau nrog rosin rau soldering. Xuas cov hlau soldering hauv ib sab tes thiab cov hlau xov tooj ntawm lwm yam.
Tu lub hau hlau taub hau kub Lub qhov txhab ua kom qhuav Lub yaj dej Txav txav cov lus qhia rau cov hlau ua haujlwm hle cov hlau lo lus
Touch Ceev nrooj kov qhov kub thiab tinned soldering hlau taub mus rau lub cored hlau, tom qab ntawd kov cov qhov chaw sib koom ua ke, siv cov hlau yaj kom pab pib thaum tshav kub kub los ntawm cov hlau soldering mus rau qhov chaw ua haujlwm, thiab tom qab ntawd tshem cov hlau hlau tawm kom tiv tauj soldering Qhov saum npoo ntawm soldering hlau taub.
Cov txuas rau cov lus qhia hlau soldering mus rau tus pin / ncoo, thiab tso cov hlau soldering ntawm cov taub hau soldering thiab tus pin los ua lub pas hlau thermal; tom qab ntawd nrawm tsiv cov xov hlau soldering mus rau sab nraud nrog thaj tsam soldering.
Txawm li cas los xij, nws feem ntau tshwm sim los ntawm kev ntsuas kub tsis haum, dhau ntawm kev kub siab, lub sijhawm khaws cia ntev, lossis kev puas tsuaj rau PCB lossis cov teeb meem tshwm sim los ntawm peb qho kev ua ke.
4. Cov kev ceev faj rau vuam:
Qhov ntsuas kub ntawm cov lus qhia nrog cov ncauj lus qhia yuav tsum tsim nyog. Cov lus qhia kub sib txawv soldering hlau yuav ua rau muaj qhov sib txawv thaum tso rau lub rosin block. Feem ntau hais lus, qhov kub thaum lub rosin yaj sai dua thiab tsis tawm ntawm cov pa luam yeeb yog qhov tsim nyog dua.
Lub sij hawm soldering yuav tsum ua kom tsim nyog, los ntawm cua sov lub ham ua ke rau cov yaj yaj yaj thiab sau ua kom cov leeg txuas, feem ntau yuav tsum ua tiav li ntawm ob peb feeb. Yog hais tias lub sij hawm soldering yog ntev dhau, qhov flux ntawm cov pob qij txha txuas yuav ua rau yoov, thiab cov fluxing nyhuv yuav ploj.
Yog hais tias lub sij hawm soldering yog luv heev, qhov kub ntawm qhov taw tes soldering yuav tsis ncav lub kub soldering, thiab solder yuav tsis yaj txaus, uas yuav yooj yim ua rau muaj tseeb cuav.
Tus nqi ntawm cov cam thiab cov flux yuav tsum tau siv kom zoo. Feem ntau, kev siv ntau dhau los yog dhau me ntsis cam thiab flux ntawm cov leeg txuas yuav muaj qhov cuam tshuam zoo ntawm soldering.
Yuav kom tiv thaiv ham ntawm solder sib koom los ntawm cov ntws ntws, tus zoo tagnrho soldering yuav tsum yog solder tsuas yog soldered qhov twg nws yuav tsum tau soldered. Hauv cov haujlwm ua haujlwm solder, solder yuav tsum tsawg dua thaum pib. Thaum cov ntsiab lus soldering mus txog rau kub solder thiab cov solder ntws mus rau hauv qhov sib txawv ntawm tus taw tes soldering, ham yuav refilled kom tiav cov soldering.
Tsis txhob kov cov pob qij txha thaum lub sij hawm thaum cov txheej txheem soldering. Thaum ham uas muag ntawm pob qij txha tsis tau tiav kev cog lus tag nrho, cov khoom siv thiab cov xov hlau ntawm cov pob qej txuas yuav tsum tsis txhob txav, txwv tsis pub cov pob qij txha txuas yuav tsis txawv txav thiab lub vuam tsoo yuav tshwm sim.
Tsis txhob scald cov cheebtsam thiab xov hlau. Thaum soldering, ceev faj kom tsis txhob tawg cov yas txheej txheej rwb thaiv tsev ntawm cov xov hlau nyob ib puag ncig thiab cov nplaim ntawm cov cheebtsam, tshwj xeeb tshaj yog rau cov khoom lag luam nrog kev cog lus ntawm vuam tuab thiab cov qauv zoo nkauj.
Ua cov haujlwm tu tom qab welding hauv lub sijhawm. Tom qab lub vuam ua tiav, lub hau hlau txiav thiab lub taub hau slag poob thaum vuam yuav tsum tau muab tshem tawm hauv lub sijhawm kom tsis txhob zais cov phom sij poob rau hauv cov khoom.
5. Kev kho mob tom qab vuam:
Tom qab welding, koj yuav tsum tau kuaj:
Txawm hais tias muaj yog ib yam uas ploj lawm.
Yog tus gloss ntawm ham pob qij txha zoo?
Txoj kev muag khoom ib leeg tsis txaus.
Seb puas muaj cov flux residual ncig cam pob qij txha.
Seb puas muaj txuas txuas ntxiv.
Seb lub ncov tau poob los.
Seb puas muaj cov kab nrib pleb hauv cov pob qij txha txuas.
Puas yog pob qij txha tsis sib xws?
Seb cov pob qij txha tseem ntse.
Rub txhua ntu tivthaiv nrog cov tais tais diav kom pom tias tsis muaj qhov xoob.
6. Desoldering:
Thaum soldering taub hau yog rhaub los ntawm qhov taw tes qhia, sai li lub suab yaj tag, cov hmoov txhuas coj los ua ke yuav tsum tau rub tawm nyob rau hauv cov kev taw qhia txiav mus rau hauv Circuit Court board nyob rau lub sijhawm. Tsis hais txog ntawm txoj hauj lwm teeb tsa ntawm txoj kev tivthaiv, txawm tias nws yuav yooj yim rau kev tawm, tsis txhob yuam lossis ntswg rau tivthaiv. Yog li kom tsis raug puas rau lub rooj tsav xwm Circuit Court thiab lwm yam.
Tsis txhob siv lub zog loj dhau thaum desoldering. Cov kev coj ua ntawm prying thiab co kev sib cuag nrog hluav taws xob soldering hlau yog qhov phem heev. Feem ntau, kev tiv tauj tsis raug tso cai los ntawm rub tawm, tshee, sib ntswg, thiab lwm yam.
Ua ntej tso cov khoom tivthaiv tshiab, tus cam hauv lub ncoo xaim qhov yuav tsum tau muab ntxuav kom huv, txwv tsis pub lub ncoo ntawm lub rooj tsav xwm hauv Circuit Court yuav raug tawm tsam thaum tso cov hmoov txhuas ntawm cov tshiab.
NeoDen muab afullSMT los ua ke lineolutions, xws liSMTreflow qhov cub, yoj soldering tshuab,khaws thiab muab tshuab, muab tshuaj txhuam muab tshuab,PCB loader, PCB unloader, nti mounter, SMT AOI tshuab, SMT SPI tshuab, SMT X-Ray tshuab, SMT los ua ke kab khoom, cov khoom siv PCB ntau lawm cov khoom siv ATMT spare xeem, thiab lwm hom SMT tshuab koj yuav xav tau, thov hu rau peb kom paub ntau ntxiv:
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