Dab tsi yog cov laj thawj uas ua rau cov hlau nplaum tsim cov hlaws dai thaum siv?
Thaum PCBA yog welded nrog ib tug soldering hlau, tin hlaws tej zaum yuav tshwm sim. Yog tias muaj ntau cov tin hlaws lossis yog tias koj ntsib ib tus neeg siv khoom nruj, nws yooj yim rau kev txiav txim raws li cov khoom tsis raug. Txhawm rau txhim kho qhov zoo ntawm PCBA vuam, nws yog ib qho tsim nyog yuav tsum nkag siab qhov ua rau ntawm cov hlaws hlaws thiab tom qab ntawd txhim kho.
Cov laj thawj tseem ceeb vim li cas cov hlau nplaum ua cov tin hlaws yog raws li hauv qab no:
1. Qhov kub ntawm cov hluav taws xob soldering hlau yog siab dhau lawm, thiab cov tin hlau heats sai heev, ua rau cov flux hnyav nyob rau hauv cov tin hlau tivthaiv boil, ua rau lub tin tawg thiab tsim tin hlaws dai.
2. Yog hais tias qhov zoo ntawm cov tin hlau tsis zoo, cov tin hlau yuav ua rau cov hlaws tin tawg. Cov npe nrov npe thiab cov khoom zoo zoo tin hlau feem ntau yuav tsis tshua muaj txaws. Nws tseem yog ib qho tseem ceeb heev uas yuav tau xaiv cov tin hlau zoo.
3. Yog hais tias lub tin hlau los yog vuam kawg tau damp, nws yog ib qho yooj yim los tsim tin hlaws dai. Koj yuav tsum tau xyuam xim rau qhov kub thiab av noo ntawm lub rhiav thiab ua kom tsim nyog cia.
Cov txheej txheem ntawm tus neeg teb xov tooj hluav taws xob soldering hlau yog qis, thiab yog tias tus neeg teb xov tooj tsis ua haujlwm raws li qhov yuav tsum tau ua, qhov tshwm sim ntawm cov hlaws hlaws yuav tshwm sim. Tsuas yog los ntawm kev txhim kho cov txheej txheem ntawm cov neeg ua haujlwm tuaj yeem tshwm sim ntawm tin hlaws hauv PCBA vuam raug txo.
Taw qhia rau cov yam ntxwv ntawm xaum soldering hlau thiab taw tes soldering hlau
1. cwj mem-zoo li tus soldering hlau
Hom soldering hlau no feem ntau muaj cov lus taw qhia thiab tuaj nyob rau hauv ob hom: adjustable kub thiab tsis-adjustable kub.
Nws cov yam ntxwv yog: pheej yig, haum rau vuam plug-in Cheebtsam, uas tsis yog-kub-kho-kho mem hluav-zoo li tus hluav taws xob soldering hlau, uas yuav oxidize nrog lub sij hawm ntev kub, thiab cov taw tes taw yuav tsis tinned.
Rau LQFP thiab TSSOP tej pob khoom, taw tes soldering hlau feem ntau nyuaj rau siv thiab tsis tuaj yeem hloov nrog riam-ntug soldering hlau cov lus qhia, uas muaj kev txwv loj.
Nws yog tsuas yog rau vuam plug-in Cheebtsam. Thaum ua qee qhov kev xav tau yooj yim vuam, koj tuaj yeem siv cov khoom siv hluav taws xob tsis zoo.
2. Taw tes soldering hlau
Vuam chaw nres tsheb feem ntau yog qhov ntsuas kub-kho tau, thiab qee qhov tau nruab nrog cov phom cua sov. Tus thawj ib tug muaj ib tug ntse ntsis, tab sis vim cov qauv compatibility, nws yuav tsum tau hloov nrog ib tug hniav hau.
Thaum siv cov ntsia hlau ntsia hlau, rau cov khoom siv hluav taws xob dav dav, qhov ntsuas kub tuaj yeem hloov kho li ntawm 350. Thaum lub PCBA tsim los nrog cov kiv cua cua sov, qhov ntsuas kub tuaj yeem tsim nyog los xyuas kom meej tias qhov kub tuaj yeem yaj cov tin ntawm PCBA.
Vim hais tias cov hniav ntawm cov hlau taub hau tuaj yeem ua tau zoo rau cov pins ntawm SOP / TSSOP / LQFP pob, nws yuav yooj yim dua thaum tshem cov tin.
