Kauj ruam 1:Ntxuav lub board nto.Khaws lub rooj tsavxwm saum npoo tsis muaj roj thiab plua plav (feem ntau yog flux los ntawm lub solder sab laug hauv cov txheej txheem reflow qhov cub).Vim tias qhov no yog cov khoom siv acidic, nws yuav cuam tshuam rau lub sijhawm ntev ntawm cov khoom thiab cov adhesion ntawm peb-pov thawj xim nrog lub rooj tsavxwm.
Kauj ruam 2:Qhuav.Txhawm rau ntxuav tus neeg saib xyuas thiab dej kom qhuav kom ntseeg tau tias lub rooj tsavxwm qhuav.
Kauj Ruam 3:Muab cov xim peb-pov thawj raws li cov ntaub ntawv muab los ntawm cov chaw tsim khoom ntawm cov xim peb-pov thawj kom xa cov viscosity tsim nyog ntawm peb-pov thawj xim, nws raug pom zoo tias qhov sib piv tsim nyog los kho cov viscosity ntawm 15-18 vib nas this (coated 4 # khob).Do sib npaug, thiab tom qab ntawd cia nws sawv ntsug li 3-5 feeb kom cov npuas ploj tag nrho tom qab koj tuaj yeem thauj khoom mus rau hauv rab phom tsuag hauv cov tshuaj tsuag.Yog tias koj siv txhuam hniav, nws raug nquahu kom yuav cov txhuam hniav mos.
Kauj Ruam 4:Txau.Peb cov xim pleev xim nrog 200 lub hom phiaj kev tshuaj ntsuam lim dej thiab ncuav rau hauv lub lauj kaub tshuaj tsuag, kho cov huab cua siab thiab txau cov duab ntawm rab phom, cov cua siab me me dhau peb cov xim pleev xim atomization tsis zoo tshuaj tsuag tawm ntawm cov xim zaj duab xis yuav muaj cov av me me, Tshwj xeeb tshaj yog thaum lub viscosity ntawm cov xim yog me ntsis loj, zoo ib yam li cov saum npoo ntawm cov txiv kab ntxwv tev (thaum lub rooj tsavxwm muaj cov roj stains tseem yuav tshwm txiv kab ntxwv tev zoo li cov tsos), cov huab cua siab loj heev thaum peb cov xim pleev xim rau ntawm qhov chaw. yuav raug tshuab los ntawm huab cua siab, nyob rau hauv cov txheej txheem ziab yuav tshwm dai.Nws raug nquahu kom kho cov tshuaj tsuag tsuag cov duab rau cov kiv cua, lub nozzle thiab lub rooj tsavxwm ntawm lub kaum sab xis ntawm 45 ° sib npaug ntawm rab phom kom cov tshuaj tsuag sib npaug ntawm lub rooj tsavxwm, tshuaj tsuag thawj rab phom rov qab mus rau rab phom thib ob. yog ua kom cov phom thib ob ntawm cov xim pos huab nias thawj rab phom ntawm cov xim zaj duab xis, thiab lwm yam kom txog rau thaum tag nrho cov tshuaj tsuag tsuag, thiaj li yuav xyuas kom meej tias cov uniformity ntawm cov xim zaj duab xis yuav tsis xau.Qhov ceev ntawm rab phom tsis tuaj yeem ceev ceev raws li cov ntaub ntawv ntawm cov xim peb-pov thawj los xyuas kom meej tias cov yeeb yaj kiab tuaj yeem muaj qhov tuab ntawm tsawg kawg 50 microns.
Kauj ruam 5:Ci lub board nto tom qab txau rau hauv qhov cub ci hauv qhov ci.Raws li cov ntaub ntawv muab los ntawm cov chaw tsim tshuaj pleev ib ce, teem lub nkhaus ci kub.Yog tias cov xim pleev xim rau nws tus kheej qhuav, yog tias nws yog qhov cub ntsug, nws raug nquahu kom ci rau 5-10 feeb tom qab nws tau tawm sab nraud rau 3-5 feeb hauv qhov cub tsis tshaj 80 degrees.Yog tias nws yog qhov cub qhov cub, nws raug nquahu kom teeb thaj tsam pem hauv ntej ntawm 60 degrees, thaj chaw nruab nrab ntawm 80 degrees thiab sab nraub qaum ntawm 70 degrees.Yog hais tias cov xim pleev xim yog ncaj qha ci ntawm qhov kub thiab txias, cov xim pleev xim rau saum npoo yuav qhuav sai dua li cov xim sab hauv, uas yog sib npaug rau cov zaj duab xis qhwv cov xim hauv qab.Thaum cov txheej hauv qab ntawm cov xim nyob rau hauv cov txheej txheem ziab ntawm cov kuab tshuaj yuav tsum tau evaporate tawm yog tsis evaporated yuav nto ntawm zaj duab xis nruas los ntawm, nws yuav tsim ib tug ntau ntawm pores thiab npuas.
Kauj Ruam 6:Kuaj lub rooj tsavxwm.Lub qhov cub ci hauv lub rooj tsavxwm uas tawm mus xyuas seb puas muaj cov pa tawm ntawm huab cua npuas, lub rooj tsavxwm nto xim zaj duab xis yog sib xws thiab ua tiav yam tsis muaj npuas, ces tsim nyog.
Ci kub ntawm peb-pov thawj xim
Hauv chav tsev kub, 10 feeb ntawm qhov chaw ziab, 24 teev kho.Yog tias koj xav tau nrawm dua, koj tuaj yeem siv 60 degrees kub ci 30 feeb, tuaj yeem ncav cuag qhov xav tau kho.Rau cov xim zoo nkauj, ci ntawm 80 degrees rau ib nrab ib teev kom kho tau tag nrho.
Post lub sij hawm: Dec-30-2021