Iron ore in Northern Ontario: The iron age, lxxxv, 26

• Publisher: Elsevier Science
• Year: 1910
• Tongue: English
• Weight: 67 KB
• Volume: 170
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(10)90889-2

✦ Synopsis

mains in the charge while melting down for a much longer time than other carbon. It is therefore absorbed and not carried off by the vapors. In working the open-hearth furnace, 'limestone or other suitable flux is introduced, then the steel and iron scrap, then the pulverized carbon and on top of this. the pig-or cast-iron. The whole is melted down and the product is a fine grade of steel. " Carbo " is about 9 ° per cent. pure carbon and is extremely slow burning. The lime charge can be reduced when carbo is used and it is said that the value of the lime saved will about pay for the carbo. This reduction in lime allows the heat to be worked a little faster, thus reducing the fuel cost per ton and increasing the weekly production of the furnace.