Yuav ua li cas xaiv txoj cai soldering hlau
Feem ntau, thaum cov neeg siv xaiv cov hlau soldering, lawv yuav xub xav txog lub zog (Watt) ntawm cov hlau soldering los ntsuas qhov ua tau zoo ntawm cov hlau soldering. Lawv xav tias lub zog siab dua, qhov zoo dua. Qhov tseeb, lub tswv yim no tsis raug. Kev ua tau zoo ntawm cov hlau soldering nyob ntawm ntau yam, feem ntau raws li hauv qab no:
1) Thaum tshav kub kub/kub mov: a) kub rov qab ceev; b) tshav kub muaj peev xwm; c) kub qhov tseeb;
2) Kev tswj qhov kub thiab txias;
3) Kev ruaj ntseg: a) rau cov khoom siv hluav taws xob; b) rau cov neeg siv;
4) Seb nws ua raws li cov hlau lead-free soldering.
Vim muaj ntau yam kev ua haujlwm hauv hluav taws xob, tsis yog txhua txoj haujlwm soldering yuav tsum muaj tag nrho cov yam ntxwv thiab muaj peev xwm ntawm cov hlau soldering. Yog tias koj tsis paub yuav ua li cas xaiv cov hlau soldering, koj tuaj yeem xaiv cov hlau uas tsis ua raws li koj xav tau lossis tus nqi-kev ua tau zoo tshaj tus qauv; Qee zaum koj tuaj yeem xaiv cov hlau nplaum uas yooj yim dhau thiab ua tsis tiav cov kev ua haujlwm zoo. Soldering yog ib txoj hauj lwm yooj yim, thiab kev xaiv yuav tsum ua kom muaj qhov sib txawv. Yog hais tias koj xav xaiv ib tug soldering hlau kom zoo, koj yuav tsum xub paub seb hom soldering txoj hauj lwm koj xav ua kom tiav. Cov lus qhia hauv qab no rau kev ua tau zoo ntawm cov hlau soldering coj cov neeg siv yuav ua li cas xaiv cov hlau uas tsim nyog kom tau raws li qhov xav tau ntawm kev ua haujlwm.
1. Thaum tshav kub kub rov qab ceev
① Kev piav qhia ntawm cov cua kub ceev: Thaum welding ib qho kev sib koom ua ke, qhov kub ntawm lub taub hau yuav poob me ntsis vim qhov kub ntawm cov khoom xa mus rau qhov sib koom ua ke. Thaum lub vuam tiav lawm thiab lub vuam taub hau tawm ntawm qhov sib koom ua ke, qhov kub yuav maj mam rov qab mus rau qhov qub kub. Tom qab ntawd qhov ceev ntawm tag nrho cov txheej txheem los ntawm kev ua tiav ntawm vuam mus rau qhov kub thiab txias nce mus rau qhov qub kub yog hu ua "kub rov qab ceev".
Dab tsi yog qhov txawv ntawm cov hlau soldering nrog cov cua sov rov qab sai thiab cov cua sov rov qab qeeb? Tshwj xeeb tshaj yog pom thaum lub sij hawm nruam vuam. Nruam vuam txhais tau hais tias thaum lub vuam qhov chaw tiav lawm, qhov thib ob vuam qhov chaw yog welded tam sim ntawd, thiaj li hais tias lub vuam ua hauj lwm yog nqa tawm tsis tu ncua. Daim duab 1 thiab 2 qhia qhov txawv ntawm ob. Ob daim duab qhia tau hais tias qhov kub thiab txias hloov ntawm lub vuam ntswj lub sijhawm. Lub hwj chim yog qhib los ntawm chav tsev kub, thiab txuas txuas txuas ntxiv pib tom qab qhov kub thiab txias stabilizes. Tom qab ua haujlwm tiav lawm, tos kom qhov kub thiab txias kom rov qab mus rau qhov kub thiab txias (qhov kab rov tav axis sawv cev rau lub sijhawm, thiab ntsug axis sawv cev rau qhov kub).
Thaum thawj qhov kev ua haujlwm welding tau ua tiav, qhov kub ntawm qhov vuam ntswj poob qis, thiab thaum thawj vuam tiav thiab qhov thib ob vuam tau npaj, qhov kub nce. Ib lub tshuab hluav taws xob nrog cov cua sov qeeb, vim tias qhov cua sov qeeb, qhov kub yuav tsis txaus tom qab ob peb txoj haujlwm soldering. Txawm li cas los xij, cov hlau soldering nrog lub siab kub rov qab tuaj yeem tswj tau qhov ntsuas kub ruaj khov thaum lub sij hawm txuas ntxiv.
② Kev sib koom ua ke ntawm kev kub ceev thiab kev ua haujlwm
Yog tias koj tab tom ua ib lossis ob qhov chaw sib txuas, koj tuaj yeem siv qee cov hlau uas tsis rov ua kom sai. Txawm li cas los xij, yog tias koj ua qhov txuas txuas txuas ntxiv (piv txwv li, cov kab ntau lawm ua haujlwm tsis tu ncua, koj xav tau cov hlau nplaum uas muaj qhov kub siab rov qab los. Ntxiv rau, yog tias koj xav tau siv qee cov lus qhia tshwj xeeb soldering rau rub thiab vuam PLCC, QFP thiab Lwm cov chips, vim hais tias koj yuav tsum tau txuas ntxiv mus txuas rau cov chips ntawm cov nti nyob rau hauv ib lub sij hawm luv luv Rau ntau yam solder pob qij txha, nws yog tsim nyog los siv ib tug soldering hlau nrog ib tug high kub rov qab tus nqi. Yog hais tias koj xav siv ib tug soldering hlau nrog ib tug tsawg tshav kub. rov qab tus nqi rau kev nruam soldering, koj yuav tsum siv qhov kub thiab txias, tab sis qhov kub thiab txias yuav ua rau cov khoom siv hluav taws xob puas ntsoog, siv cov hlau soldering nrog lub siab kub rov qab tus nqi Tsawg kub soldering yuav siv tau.
PLCC welding tshuab
Fast reheating enables txaus welding ntawm qhov kub thiab txias, txo kev puas tsuaj rau Circuit Court boards thiab rhiab hluav taws xob Cheebtsam, prolongs lub neej ntawm vuam tswv yim, thiab tsub kom cov efficiency ntawm nruam vuam. Kev rov ua kom nrawm nrawm txo qhov kub hloov pauv loj thaum lub sijhawm vuam, ua rau vuam ua haujlwm yooj yim los tswj.
2. Thaum tshav kub kub muaj peev xwm
Vuam cov lus qhia ntawm qhov sib txawv muaj peev xwm sib txawv. Qhov loj dua qhov vuam taub, qhov muaj peev xwm kub ntau dua, thiab cov cua sov tsawg yuav ploj thaum vuam. Ntawm qhov tsis sib xws, qhov thinner qhov vuam taub, qhov me me ntawm lub peev xwm kub, thiab cov cua sov ntau yuav ploj thaum vuam.
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Kev sib koom ua ke ntawm kev muaj peev xwm kub thiab ua haujlwm
Thaum xaiv cov hlau soldering, xav txog qhov loj ntawm lub taub hau. Yog tias koj siv lub taub hau loj loj, koj tuaj yeem siv cov hlau uas tsis tshua muaj kub; Yog tias koj siv lub taub me me, koj yuav tsum siv cov hlau uas kub kub. Yog hais tias lub soldering ua hauj lwm yuav tsum tau hloov qhov luaj li cas ntawm lub soldering ntsis, koj yuav tsum tau siv ib tug soldering hlau nrog kub hloov. Txawm hais tias qhov luaj li cas ntawm lub taub hau soldering, koj tsuas yog yuav tsum tau siv qhov ntsuas kub hloov ua haujlwm los koom tes. Cov tswv yim vuam me me yuav tsum tau siv cov vuam kub kub kom muaj cua sov txaus vim tias lawv lub peev xwm kub me me. Txawm li cas los xij, qhov kub thiab txias yuav yooj yim oxidize cov lus qhia vuam thiab txo lub neej ntawm cov lus qhia vuam. Yog li ntawd, thaum siv cov tswv yim vuam me me, ua tib zoo saib xyuas thiab ntxuav cov lus qhia vuam tsis tu ncua. Tsui, tig qhov kub thiab txias tam sim tom qab siv.
3. Kub qhov tseeb ntawm vuam taub
Niaj hnub no, cov khoom siv hluav taws xob yuav tsum tau ua kom me me thiab meej dua, thiab qhov kev xav tau ntawm qhov kub thiab txias tau nruj dua, yog li qhov ntsuas kub ntawm cov hlau soldering kuj tseem ceeb heev. Ntau tus neeg xav tias yog tias muaj qhov sib txawv ntawm qhov ntsuas kub thiab qhov ntsuas kub ntawm lub taub hau, nws txhais tau hais tias kev ua haujlwm ntawm cov hlau soldering yog faulty los yog puas, tab sis qhov no tsis yog li ntawd. Qhov sib txawv ntawm qhov ntsuas kub thiab qhov ntsuas kub tiag tiag feem ntau cuam tshuam los ntawm ob yam, suav nrog (1) qhov loj thiab cov duab ntawm cov khoom siv hluav taws xob, thiab (2) qhov poob ntawm lub hau thiab cov cua sov.
