NEWS
2022-02-09 13:09:59.414
The company has experienced more than 30 years of profound accumulation in the spheroidizing agent industry, and adheres to the business philosophy of "service first, product quality, innovation and win-win", not only to provide customers with high-quality products, but also to provide customers with the most suitable technical solutions. and the most comprehensive technical services. Yongxin, with its consistent professional spirit, works hand in hand with many excellent foundry companies to create brilliant!
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2022-02-09 13:10:45.405
The company takes technological innovation as the foundation of its establishment, and is in the leading position in the same industry in the field of nodularizing agents. The company has Jiangsu Province Engineering Technology Center and Wuxi City Enterprise Technology Center, equipped with iron film sand-coated casting line for the research and development of nodularizing agent, which is the experimental base for scientific and technological development of nodularizing agent and as-cast ductile iron in Jiangsu Province.
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2022-02-09 13:11:38.224
The company takes technological innovation as the foundation of its establishment, and is in the leading position in the same industry in the field of nodularizing agents. The company has Jiangsu Province Engineering Technology Center and Wuxi City Enterprise Technology Center, equipped with iron film sand-coated casting line for the research and development of nodularizing agent, which is the experimental base for scientific and technological development of nodularizing agent and as-cast ductile iron in Jiangsu Province.
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2022-02-10 15:20:51.993
1 Definition
The inoculant is a kind of inoculant that can promote graphitization, reduce the tendency of white mouth, improve the morphology and distribution of graphite, increase the number of eutectic groups, and refine the matrix structure. good effect. It is mainly suitable for general occurrence or late instantaneous inoculation in various situations.
2 How to use
1. Inoculation by pouring the bag: Add the inoculant into the bag, and then pour it into the molten iron to make it melt evenly, and then pour it.
2. The added amount is about 1.0-1.8% by weight of molten iron.
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2022-02-10 15:21:33.455
The role of inoculants in ferroalloys
Ferroalloys are generally used as:
① Deoxidizer. In the steelmaking process, oxygen is removed from molten steel, and some iron alloys can also remove other impurities in steel such as sulfur and nitrogen.
② Alloy additives. According to the composition requirements of the steel grade, alloying elements are added to the steel to improve the properties of the steel.
③ Inoculant. It is added into molten iron before casting of cast iron to improve the crystallographic structure of the casting. In addition, it is also used as a reducing agent for the production of other ferrous alloys and non-ferrous metals by metallothermic reduction; an alloy additive for non-ferrous alloys; and a small amount is also used in the chemical industry and other industries.
The use of inoculants is more and more widely used in ferroalloys, and the price of inoculants is also adjusted accordingly in the market with the use of ferroalloys.
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2022-02-10 15:22:07.169
Classification of inoculants
(1) Ferrosilicon inoculant. Ferrosilicon inoculants are divided into three types: 45FeSi, 75FeSi, and 85FeSi. The treatment effect of 45FeSi inoculant is poor, and the cost of 85FeSi is higher, and 75FeSi is commonly used. Ca and Al in 75FeSi have a great influence on the inoculation effect, among which Ca has a great influence, and when it is greater than 0.5%, it has a strong ink-forming ability. Generally, 75FeSi chooses the following chemical composition ranges, Si: 74% to 78%; Ca: 0.5% to 1.0%; Al: 0.8% to 1.5%.
(2) Silicon barium inoculant. Silicon barium inoculants are mainly used in the production of gray cast iron and ductile iron. It can significantly increase the number of graphite nodules when used in ductile iron, and can reduce the tendency of white mouth when used in gray cast iron. Refine grains and improve graphite morphology. In addition to high mechanical properties, this kind of inoculant also has strong anti-recession ability. Generally, the inoculant contains Ba between 2% and 3%.
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