The Path of Survival.

Summary

Xiao Fan explores the differences between steel and iron, emphasizing that carbon content is crucial in determining their properties. He learns that pig iron is hard and brittle due to high carbon levels, while steel offers strength and plasticity. He discusses the challenges of forging and smelting iron efficiently, realizing that increasing furnace height might help. A conversation with Guo Hong sparks his memory about calcium carbonate as a combustion agent in iron smelting, which could enhance efficiency by forming slag and reducing impurities. This discovery could significantly improve his iron production process.

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