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Daim ntawv tsis muaj sulfur
Daim ntawv tsis muaj sulfur yog daim ntawv tshwj xeeb uas siv rau hauv cov txheej txheem silvering PCB hauv cov chaw tsim khoom ntawm lub rooj tsavxwm kom tsis txhob muaj kev sib xyaw ntawm cov nyiaj thiab sulfur hauv huab cua. Nws lub luag haujlwm yog kom tsis txhob muaj kev sib xyaw ntawm cov nyiaj hauv cov khoom electroplating thiab sulfur hauv huab cua, kom cov khoom tig daj, ua rau muaj kev tsis haum tshuaj. Thaum cov khoom tiav lawm, siv daim ntawv tsis muaj sulfur los ntim cov khoom sai li sai tau, thiab hnav cov hnab looj tes tsis muaj sulfur thaum kov cov khoom, thiab tsis txhob kov qhov chaw electroplated.
