There are many types of ferroalloys. According to the elements, they are mainly divided into silicon series, manganese series, chromium series and other series; according to the carbon content, they are divided into high carbon, medium carbon, low carbon, micro carbon, ultra-fine carbon, etc.; according to production The methods are divided into blast furnace ferroalloys, electric furnace ferroalloys, external furnace ferroalloys (metal thermal method) ferroalloys, vacuum resistance furnace ferroalloys, oxygen converter ferroalloys, etc.
Ferroalloys are mainly used as deoxidants and alloying agents in steelmaking to eliminate excess oxygen and sulfur in molten steel and improve the quality and performance of steel.
1. It is used as a deoxidizer. During steelmaking, oxygen blowing and other methods are used to decarburize the molten iron and remove harmful impurities such as phosphorus and sulfur. This process will increase the oxygen content in the molten steel. Excessive oxygen content will reduce the mechanical properties of the steel. Add some elements that have a stronger binding force with oxygen than iron and whose oxides are easily discharged from the molten steel in the form of slag to remove oxygen from the molten steel. This process is called deoxidation. Silicon, manganese, and chromium alloys are used for this purpose.
2. It is used as alloy agent. Different alloying elements have different properties and uses.
Silicon can significantly improve the elasticity and magnetic permeability of steel. Therefore, silicon-based alloys are used when smelting structural steel, tool steel, spring steel and silicon steel for transformers; general steel contains 0.15%-0.35% silicon, and structural steel contains 0.15%-0.35% silicon. Silicon contains 0.40%-1.75%, tool steel contains silicon 0.30%-1.80%, spring steel contains silicon 0.40%-2.80%, stainless acid-resistant steel contains silicon 3.40%-4.00%, heat-resistant steel contains silicon 1.00 %-3.00%, silicon steel contains silicon 2%-3% or higher.
Manganese can reduce the brittleness of steel, improve the hot working properties of steel, and increase the strength, hardness and wear resistance of steel. The steel industry consumes more than 90% of its production of manganese. Manganese is an indispensable functional basic raw material for the production of high-quality steel. During the steel-making process, it can remove impurities such as oxygen and improve strength and hardness.
3. It is used as an inoculant for foundry crystal nuclei. One of the measures to improve the properties of cast iron and cast steel is to change the solidification conditions of the casting. In order to change the solidification conditions, certain iron alloys are usually added as crystal nuclei before pouring to form the center of the grains, so that the formed graphite becomes fine and dispersed and the grains are refined, thereby improving the performance of the casting.
4. It is used as reducing agent. Silicon alloys are respectively used as reducing agents in the production of ferromolybdenum, ferrovanadium and other ferroalloys; silicon-chromium alloys and manganese-silicon alloys are respectively used as reducing agents in the production of medium and low carbon ferromanganese.
Anyang Jinsheng Metallurgical Materials Co., Ltd. is located in Longquan Town Development Zone, Long'an District, Anyang City, in the northern part of Henan Province. As the junction of Shanxi, Henan and Hebei, our company has convenient transportation conditions.
Economically, Anyang City, China's ferroalloy distribution center, has contributed to China's steel industry, casting industry and other enterprises. Culturally, Anyang is the birthplace of the ancient Chinese characters Oracle and Zhou Yi, and is also one of the ancient capitals of China's eight dynasties.
Anyang Jinsheng Metallurgical Materials Co., Ltd. is an economic entity integrating assets, operations and production. It is committed to the R&D and production of ferroalloy charge, metallurgical refractory materials and other products. Our company is mainly engaged in the production and sales of: ferrosilicon, (blocks, granules, powder , balls, etc.), ferromanganese, spheroidizing agent, inoculant, carburizer, slag remover, silicon carbide, silicon barium, silicon barium calcium, silicon aluminum barium calcium, silicon carbon alloy, silicon aluminum ferro, ferrochromium and other metallurgy Materials can be customized and processed into products of various contents and particle sizes according to customer requirements;
In the development milestone of the new century, Anyang Jinsheng Metallurgical Materials Co., Ltd. is willing to cooperate sincerely with friends from all walks of life, based on the principle of honesty and trustworthiness, and accepting all customers regardless of size, customer-oriented, relying on technology and management, and Integrity is the foundation, we strive to achieve mutual benefit and win-win, seek common development, and contribute to the revitalization of the national economy.