抄録
This paper is a brief sketch of the practical working at our steel works supplying the general idea of the so-called esoteric secret of Rolling the Silicon Steel Sheets. Some foundamental properties of Electrical Sheets are recollected and the standard specifications of our sheets are given comparing with those of foreign sheets, emphasizing the non-sense of the nomenclature of these sheets.
In the practical working the essenrial parts are Rolling, Annealing and Epstein testing. Neglecting others, these parts are described rather in details. The Rolling is manipulated by hand, relying on the skillful workmen, and they are apt to be disturbed by their hardwork giving unoqual thickness to the sheets. The annealing gives an astonishing effect to the Silicon Steel Sheet resulting in high permeability and low watt-loss. and the controlling of annealing in practice is also a difficult thing owing to the sensibility of sheet to heat. Hence there appeared recently a process called "Gas pickling or bright annealing" which is the pioneer that rescure the weak points of Silicon Steel sheets. The Epstein tests are so honest that there are no means to disguise the fault on the sheets.
In conclusion, the future progress of Electrical sheets is briefly presumed.
