"Tsev" feem ntau tsis quav ntsej hauv PCBA cov txheej txheem tsim khoom ntawm Circuit Court boards, thiab nws tau txiav txim siab tias kev ntxuav tsis yog ib kauj ruam tseem ceeb.Txawm li cas los xij, nrog rau kev siv lub sijhawm ntev ntawm cov khoom ntawm cov neeg siv khoom, cov teeb meem tshwm sim los ntawm kev tu tsis zoo nyob rau theem pib ua rau muaj ntau yam tsis ua haujlwm, kho lossis rov qab cov khoom tau ua rau muaj kev nce nqi hauv kev khiav haujlwm.Hauv qab no, Heming Technology yuav piav qhia luv luv txog lub luag haujlwm ntawm PCBA kev tu vaj huam sib luag.
Cov txheej txheem tsim khoom ntawm PCBA (luam tawm Circuit Court sib dhos) dhau los ntawm ntau theem txheej txheem, thiab txhua theem yog qias neeg mus rau qhov sib txawv.Yog li ntawd, ntau yam deposits los yog impurities nyob rau saum npoo ntawm Circuit Court board PCBA.Cov pa phem no yuav txo qhov kev ua tau zoo ntawm cov khoom, thiab tseem ua rau cov khoom tsis ua haujlwm.Piv txwv li, nyob rau hauv tus txheej txheem ntawm soldering hluav taws xob Cheebtsam, solder muab tshuaj txhuam, flux, thiab lwm yam yog siv rau auxiliary soldering.Tom qab soldering, residues yog generated.Cov residues muaj cov organic acids thiab ions.Ntawm lawv, organic acids yuav corrode Circuit Court board PCBA.Lub xub ntiag ntawm hluav taws xob ions tuaj yeem ua rau luv luv thiab ua rau cov khoom tsis ua haujlwm.
Muaj ntau ntau yam kuab paug ntawm lub rooj tsav xwm PCBA, uas tuaj yeem muab faib ua ob pawg: ionic thiab non-ionic.Cov pa phem ionic tuaj rau hauv kev sib cuag nrog cov dej noo hauv ib puag ncig, thiab electrochemical tsiv teb tsaws tshwm sim tom qab hluav taws xob, tsim cov qauv dendritic, ua rau txoj kev tsis tshua muaj zog, thiab rhuav tshem PCBA kev ua haujlwm ntawm lub rooj tsav xwm Circuit Court.Cov pa phem uas tsis yog-ionic tuaj yeem nkag mus rau hauv cov txheej txheem insulating ntawm PC B thiab loj hlob dendrites hauv qab ntawm PCB.Ntxiv nrog rau ionic thiab non-ionic pollutants, kuj muaj cov pa phem granular, xws li cov khoom siv solder, cov ntsiab lus ntab hauv cov dab da dej, plua plav, plua plav, thiab lwm yam. Cov pa phem no tuaj yeem ua rau qhov zoo ntawm cov pob qij txha raug txo qis, thiab cov khoom siv solder. cov pob qij txha yog sharpened thaum soldering.Ntau yam tshwm sim tsis zoo xws li qhov pores thiab luv circuits.
Nrog ntau cov pa phem, leej twg muaj kev txhawj xeeb tshaj plaws?Flux lossis solder paste feem ntau yog siv nyob rau hauv reflow soldering thiab yoj soldering txheej txheem.Lawv tsuas yog tsim los ntawm cov kuab tshuaj, cov tshuaj ntub dej, cov resins, corrosion inhibitors thiab activators.Thermally modified khoom yog khi rau muaj nyob tom qab soldering.Cov khoom no Nyob rau hauv cov nqe lus ntawm cov khoom tsis ua hauj lwm, tom qab vuam residues yog qhov tseem ceeb tshaj plaws uas cuam tshuam rau cov khoom zoo.Ionic residues yuav ua rau electromigration thiab txo cov rwb thaiv tsev, thiab rosin residues yog ib qho yooj yim rau adsorb Plua plav los yog impurities ua rau kev tiv thaiv tiv thaiv kom nce, thiab nyob rau hauv qhov hnyav, nws yuav ua rau qhib Circuit Court tsis ua hauj lwm.Yog li ntawd, kev tu nruj yuav tsum tau ua tom qab vuam los xyuas kom meej qhov zoo ntawm Circuit Court board PCBA.
Hauv cov ntsiab lus, kev ntxuav ntawm lub rooj tsav xwm PCBA yog qhov tseem ceeb heev."Kev Tu" yog ib qho tseem ceeb ntawm cov txheej txheem ncaj qha ntsig txog qhov zoo ntawm lub rooj tsav xwm PCBA thiab yog qhov tseem ceeb.