Spiegeleisen

(noun.) pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel.

杰弗里校对

• If steel was wanted a small amount of carbon, usually in the form of spiegeleisen, was introduced into the converter before the process was complete. 威廉·亨利·杜利特. 世纪发明.
• Mushet (British patent No. 2,219, of 1856) of adding spiegeleisen, a triple compound of iron, carbon and manganese, to the charge in the converter. Edward W. Byrn. 十九世纪发明进展.

录入:卡利