非金屬介在物電解法に於ける炭素鋼線材の黒色殘渣(電解殘渣)について

概要

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When carbon steel wire rods were treated by the electrolytic method which was usually employed for the determination of nonmetallic inclusions in iron and steel, following facts were found concerning the produced black residues. (1) The quantities of the produced black residues were found larger in case of the electrolysis method than in case of the sulfuric acid method. (2) When the current density was lowered by increasing the number of the rods at a constant voltage, the amounts of the black residues were increased. (3) About the elements contained in the electrolytic residues, the results were as follows. The suffix 1 and 2 indicated the electrolysis method and sulfuric acid method respectively. (a) C_1>C_2 (b) Si_1<Si_2 (c) Mn_1<Mn_2 (d) P_1>P_2 in case of Japanese products and P_1≒P_2 in case of foreign products. (e) S_1>S_2 (f) Ni_1<Ni_2 (g) Cr_1>Cr_2 (=0) (h) Cu_1=Cu_2, in both cases, Cu was all remained undissolved. (i) Fe_1>Fe_2, the value of Fe_1 was specially high in case of Japanese products. (g) H_2O_1<H_2O_2 in case of Japanese products and H_2O_1>H_2O_2 in case of foreign products. (weight decrease)_1>(weight decrease)_2.
社団法人日本鉄鋼協会の論文
1954-02-25