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Question:

Are there any differences between flat iron and flat steel?

Are there any differences between flat iron and flat steel?

Answer:

Iron and steel material is composed of many common substances in our life, there is the structure to a great extent strengthening our lives in their understanding, they will contribute to the understanding of life, life changing we more clearly.
We should know the difference between iron and steel is carbon content of different (2%-4.3% and 0.03%-2%), and then understand the classification of iron and steel respectively, and focus on the actual use of various substances such as name, name of gray cast iron, commonly used in the manufacture of various castings etc.. This part of the study should be based on contrast, although the data theory is not many, but we should pay attention to, because the exam often in the form of common sense multiple-choice questions appear.
The steel and iron are carried out using redox reaction, but there is a great difference in the response object: iron is iron reduced, while steel is the excess carbon in pig iron and other impurities in the actual operation, so the two links are different.There are three main ways to make steel: converter, electric furnace and peace furnace. Among them, the converter steelmaking method is more common. We do not need to remember its specific operations (but only to lead to understanding), but attention should be paid to reactions such as ferric oxide, removal of magazines and deoxygenation. A large amount of brown vapor is produced during steelmaking, consisting of iron oxides, dust particles, and high concentrations of carbon monoxide, which must be purified.
There are many kinds of iron ore, magnetite, hematite, corresponding to the main components of the ore should all know, or in a similar "write reaction equation" with the topic of carbon monoxide reduction of magnetite occurs, will be at a loss what to do. Next should mainly reflect the principle on iron smelting to understand the reducing agent for iron reduction, must pay attention to the test of the formulation of the phenomenon - "red brown powder into black" (which is often the examination content). From here, the principle of blast furnace ironmaking is approximately the same. For some knowledge in actual production, we should understand the basic structure of the blast furnace five furnace two, three import and export ", and each part of the chemical reaction, the slag formation reaction, the need to pay attention to is: the composition of blast furnace gas is a mixture of gases such as carbon monoxide, carbon dioxide and nitrogen, after purification to it is a gas discharge, good fuel.

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