Abstract
The manufacturing method of the low phosphorus pig can be divided into two general classes;
A. The products made by selecting the raw materials which are low in phosphorus, or dephosphorised preliminary by the dressing and etc. The charcoal pig, hematite pig and Peu-hsi-hu low phosphorus pig belong to this class.
B. The products made by the manufacturing method diminishing any content of phosphorus in the pig irons regardless the raw materials. The Kenjiho low phosphorus pig which is produced by the patented process of the Kenjiho Iron Works, belongs to this class.
In this paper the auther explained the construction and the working data of this refining process.
