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pig iron
pig iron
Danh từ
This term refers to the raw, brittle form of iron produced in a blast furnace. The name derives from the historical practice of casting the molten metal into molds shaped like pigs, where a central runner (the sow) connected several smaller ingots (the piglets).
In industrial contexts, pig iron is rarely used as a final product because its high carbon content makes it too brittle for structural applications. It serves primarily as an intermediate material that must be refined into steel or wrought iron through the removal of impurities and carbon.
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