𝔖 Bobbio Scriptorium
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The Iron Ore Deposits of Northern Sweden

Book ID
109434209
Publisher
Nature Publishing Group
Year
1898
Tongue
English
Weight
270 KB
Volume
59
Category
Article
ISSN
0028-0836

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## 409 and machined products. Graphitic grains form centres from which rusting starts. Fractures rust more readily than the outer surface, and it is suggested that a coating of silicates in the case of cast iron, and films of scale in rolled material, act as a protecting layer. The rough surface o

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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 th