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Calcium and silicon and oxygen has a strong affinity. Especially calcium, not only with strong affinity, oxygen and sulfur, nitrogen has a strong affinity. So the calcium silicon alloy is a kind of ideal compound deoxidizer, desulfurization agent. Silicon alloy not only deoxidization ability strong, deoxidizing products tend to rise, easy to discharge, but also can improve the performance of the steel, plasticity, impact toughness of steel and liquidity. Currently the calcium silicon alloy can be final deoxidization instead of aluminium. Be applied to the high quality steel. In the production of special steel and special alloys. Such as rail steel, mild steel, stainless steel, steel and nickel base alloy, titanium alloy, and other special alloy are available the calcium silicon alloy as deoxidizer. The calcium silicon alloy also for practice of converter steel workshop with increasing agent, the calcium silicon alloy can also be used for cast iron inoculant and additives in nodular iron production.
Broad of ferroalloy ferroalloy Ferroalloys (English), is refers to the steelmaking as deoxidizer, element additives added to molten steel with a particular feature or meet certain requirements of a product. Iron and intermediate alloy composed of one or more of the following elements, mainly used in steel smelting. In the iron and steel industry is usually put all steel used in the middle of the alloy, iron or not (e.g., the calcium silicon alloy), are called "alloy". Habits and some pure metal oxide additives and additives is also included.
Deoxidizer. Removing the oxygen in molten steel in the process of steelmaking, some ferroalloy can removing the other impurities such as sulfur, nitrogen in steel.
Additive in alloy. According to the requirements of steel composition, adding alloying elements in the steel to improve the performance of the steel.
Inoculant. In front of the cast iron casting in molten iron, improve the crystallization of castings.
Reducing agent to the metal thermal reduction process in the production of other alloy and nonferrous metal reducing agent; Non-ferrous alloy alloy additive; Also a small amount of used in the chemical industry and other industries.
All steel, steel capital is a kind of ferroalloys, it also makes the iron alloy is the most widely used, dosage biggest alloy.
Also put some iron with high carbon content in high school textbooks and all the iron alloy is called ferroalloy.
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