Hauv kev lag luam PCB (printed circuit board) vaj huam sib luag, kev siv cov hnab looj tes nitrile uas muaj cov tshuaj chlorine tsawg yog ib qho tseem ceeb los xyuas kom meej tias cov khoom zoo thiab kev nyab xeeb ntawm kev tsim khoom, uas muaj feem cuam tshuam nrog cov txheej txheem tsim khoom thiab cov yam ntxwv ntawm cov khoom ntawm PCB panels.
Ua ntej, qhov yuav tsum tau ua kom huv ntawm PCB panels yog siab heev thaum lub sijhawm tsim khoom. Tej yam me me uas muaj kuab paug yuav cuam tshuam rau kev ua haujlwm thiab qhov zoo ntawm lub rooj tsavxwm. Chlorine yog corrosive heev. Yog tias cov chlorine hauv cov hnab looj tes nitrile ib txwm muaj ntau, chlorine yuav precipitate thaum siv. Thaum cov hnab looj tes kov lub vaj huam sib luag PCB, cov chlorine precipitated yuav tshuaj lom neeg nrog cov hlau circuits, cov khoom, thiab lwm yam ntawm lub rooj tsavxwm, ua rau cov hlau xeb thiab oxidation, yog li cuam tshuam rau qhov conductivity ntawm lub rooj tsavxwm, thiab txawm tias ua rau muaj teeb meem loj xws li luv luv Circuit Court thiab qhib Circuit Court, txo cov txiaj ntsig ntawm cov khoom. Cov hnab looj tes nitrile uas muaj chlorine tsawg tswj hwm cov ntsiab lus ntawm chlorine, txo qhov kev pheej hmoo ntawm chlorine precipitation, thiab tuaj yeem tiv thaiv lub vaj huam sib luag PCB los ntawm corrosion, kom ntseeg tau tias cov khoom zoo ruaj khov thiab txhim khu kev qha.
Qhov thib ob, cov txheej txheem tsim cov PCB panels yog qhov nyuaj, uas muaj ntau yam tshuaj reagents thiab cov kauj ruam ua haujlwm. Hauv kev etching, electroplating thiab lwm yam txheej txheem, ntau cov kua qaub, alkali thiab lwm yam tshuaj siv. Cov hnab looj tes qis-chloronitrile muaj kev tiv thaiv kev xeb tshuaj zoo thiab tuaj yeem tiv taus kev yaig ntawm cov tshuaj no los tiv thaiv kev nyab xeeb ntawm cov neeg teb xov tooj txhais tes. Tib lub sijhawm, cov hnab looj tes yuav tsis o lossis deform vim kev sib cuag nrog cov tshuaj, ua kom muaj kev ywj pheej thiab kev ruaj khov ntawm kev ua haujlwm, tso cai rau cov neeg teb xov tooj kom ua tiav ntau yam kev ua haujlwm zoo thiab txhim kho kev ua haujlwm zoo.
Ntxiv mus, thaum cov khoom siv hluav taws xob tsim los rau qhov me me thiab qhov tseeb siab, qhov yuav tsum tau ua kom zoo rau PCB panels tau dhau los ua qhov nruj dua. Kev siv cov hnab looj tes qis-chloronitrile ua tau raws li kev lag luam xav tau rau kev tsim khoom zoo, pab cov tuam txhab txhim kho kev sib tw ntawm cov khoom, thiab ua tau raws li cov neeg siv khoom xav tau rau cov PCB panels zoo. Tib lub sijhawm, kev siv cov hnab looj tes qis-chloronitrile kuj ua tau raws li cov qauv ib puag ncig thiab kev nyab xeeb, txo cov kev phom sij ib puag ncig thiab kev nyab xeeb los ntawm chlorine ua qias tuaj, thiab tso lub hauv paus rau kev txhim kho kev lag luam.
Kev lag luam vaj huam sib luag PCB siv cov hnab looj tes uas muaj chloronitrile tsawg los daws ntau yam teeb meem hauv cov txheej txheem tsim khoom. Txij li kev tiv thaiv cov khoom zoo, kev ua kom muaj kev nyab xeeb ntawm kev tsim khoom, kev txhim kho kev ua haujlwm kom zoo dua qub mus rau kev ua kom tau raws li qhov xav tau ntawm kev txhim kho kev lag luam, cov hnab looj tes uas muaj chloronitrile tsawg ua lub luag haujlwm tseem ceeb.
Lub sijhawm tshaj tawm: Lub Rau Hli-16-2025