PCB kev lag luam txheej txheem tsim tawm ntau cov kua micro-etching kua, etching kua, tooj liab nitrate, thiab lwm yam hlau uas muaj ntau ntau ntawm tooj liab, ib tug siab rov qab tus nqi, thiab ib tug me me ntawm tooj liab hnyav hlau uas tsis tau tsim nyog kho los ntawm ib puag ncig. yuav muaj nyob rau hauv cov dej khib nyiab pov tseg, uas yuav ua rau ib qho tseem ceeb pov tseg ntawm cov peev txheej ntawm ib sab thiab tso tawm cov hlau hnyav rau hauv av thiab cov dej hauv lwm qhov. Peb yuav nyob hauv ib puag ncig ntuj thiab lawv tus kheej kev noj qab haus huv muaj kuab paug thiab raug mob. Siv titanium anode, electrowinning tooj liab yog → los ntawm micro-etching tov (Cu2SO4 ntxiv rau H2O2) → oxygen breaking electrolyzer (decomposition ntawm H2O2); Alkaline etching tov → extraction txheej txheem → tooj liab sulfate ntxiv sulfuric acid → electrowinning tooj liab; Acid etching tov → ion membrane electrolysis (electrowinning tooj liab) → tail gas kho (absorption ntawm chlorine) tuaj yeem rho tawm high-purity electrolytic hlau tooj liab kom ua tiav theem nrab rov qab.
Nyob rau hauv xyoo tas los no, PCB nto kho cov txheej txheem xws li tooj liab immersion (PTH), electroplating, puab txheej pretreatment, ntsuab roj pretreatment, OSP kev kho mob, thiab lwm yam ntau lawm kab tau siv ntau micro-etching tov, uas muaj xws li sodium persulfate/sulfuric acid. system thiab hydrogen peroxide / sulfuric acid system. Direct electrolysis, txawm li cas los xij, ua puas lub anode txheej.
Thaum lub sij hawm etching txheej txheem ntawm hluav taws xob Circuit Court phaj (PCB), cov ntsiab lus tooj liab nyob rau hauv cov tshuaj etching maj mam nce. Txhua liter ntawm etching tov yuav tsum muaj 120 mus rau 180 grams tooj liab thiab tus nqi sib thooj ntawm etching ntsev (NH4CI) thiab ammonia kom tau qhov loj tshaj etching nyhuv (NH3). Txoj kev rho tawm thiab cov txheej txheem electrolysis ncaj qha yog ob lub hauv paus tseem ceeb uas ua rau cov kua qaub thiab alkaline etching kua regeneration voj voog system. Ib tug loj npaum li cas ntawm cov neeg siv khoom etching tov uas thaum xub thawj xav tau kom tshem tawm yuav txo tau thiab regenerated rau hauv ib tug reusable reused etching tov. Los ntawm kev ua qhov no, kev lag luam pov tseg raug tso tawm tsawg dua, cov nqi tsim khoom raug txo qis rau kev rov ua dua tshiab, thiab cov tooj liab siab ntshiab rau electrolysis.
Yog xav paub ntxiv, koj tuaj yeem tiv tauj peb cov neeg siv khoom kom paub ntau ntxiv txog daim ntawv thov baoji titanium anode hauv etching daws kev lag luam rov qab.
