電気亜鉛めつき工程めつき浴および各種処理浴の自動濃度分析システムの開発

概要

論文の詳細を見る
The fundamental approaches for an automatic concentration control system were made of five kinds of chemical treatment baths in an electric galvanizing process. The results obtained are summarized as follows : (1) The concentration of NaOH or Na_4SiO_4 in an alkali-using cleaning bath and H_2SO_4 in a pickling bath can be analized with electric conductivity cell. (2) The concentration of ZnSO_4・7H_2O and H_2SO_4 in an electric galvanizing bath can be automatically analyzed with the combination of specific gravity meter and pH meter. (3) The concentration of (NH_4)_2CO_3 in an electolytic cleaning bath can be automatically analyzed with electric conductivity cell and those of CrO_3 and its addition in an electrolytic chromate bath can be done with the combination of electric conductivity cell and specific gravity meter.
社団法人日本鉄鋼協会の論文
1979-10-01