豫備製錬式混銑爐と平爐との合併製鋼作業に就いて
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概要
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This description is illustrated the practical operation in combined steel refining process of active mixer and open hearth furnace. Especially, the writer will here give the general accounts of the operation of active mixer, combined process and ore process. The active mixer is described about the structure of furnace, outline of its operation, chemical change in refining, result of operation and etc. This mixer is unable to rise to suitable temperature in relation of checker warks. Therefore ; it is difficult to obtain the desired results. But, in order to escape from anxisty of scrap supplying in our country, of course, it will be the important problem to select for various steel making processes. In the preliminary refining of active mixer, the silicon in molten pig iron become rapidly in trace, and the reduction of carbon is at small degree. The descending of manganese content is also one defect of this active mixer practice. Then, the Preliminary refined molten metal is introduced into the open hearth furnace, in which the time of treatment is carried on short by means of combined process, and then the furnace can attain the economical productions. But, owing to obtain the low silicon pig iron at present time, it will be necessary to study the ore process. By reason of this, the writer has bliefly compared with these processes. This ore process, however, is remained to study as well as the combined process in future. In short, the writer believes that combined process is experimentally one of the advantageous plan to get rid of the panic for scrap supplying in present Japan.
- 社団法人日本鉄鋼協会の論文
- 1933-08-25