消耗電極式アーク溶解における精錬作用について : 消耗電極式アーク溶解法の基礎研究 II

概要

論文の詳細を見る
The process of refining by consumable electrode arc melting method is discussed based on the results described in the first report (idem, Tetsu-to-Hagane, 48 (1962) 13, p. 1654) and more experiments were successively performed. 1) Reduction of various oxides such as Al_2O_3, SiO_2 and Cr_2O_3 reacting with carbon in molten metal might be possible in the range of temperature and pressure in which the melting was carried out. And a possibility of removal of Al_2O_3 and SiO_2 generating their gaseous suboxides was discussed. Generation of the former suboxide would be impossible by thermal decomposition, but possible by carbon reduction at high temperature. The SiO could be generated by thermal decomposition as well as by carbon reduction. 2) Floating refining process which was peculiar to the method was discussed ; and the analyses of oxide inclusions floated up on the surface of an ingot confirmed that the process really took place. 3) Decrease of nitrogen and hydrogen was discussed.
社団法人日本鉄鋼協会の論文
1962-12-01