Calcium Silicon
Your Professional Calcium Silicon Manufacturer
We are a professional manufacturer in Ferroalloy and Metal industries, we have many complete production lines! The factory covers an area of 95,000 square meters, Our common products are Silicon Metal, Ferro Silicon, Silicon Calcium alloy, Ferro Manganese, Silicon Manganese, Cored Wire, etc.
Why Choose Us
Our factory
We have our own processing factory and cooperate with many professional manufacturers to ensure the smooth production of products and product quality assurance.
Team Advantage
We have a professional management team to provide customers with product services and support in all aspects from production, sales, logistics, etc.
Production Scale
TF Industrial Co.,Ltd further expanded its factory scale and now has a complete modern production line consisting of 6 submerged arc furnaces and 10 intermediate frequency furnaces.
Sale Market
We have established long-term and stable cooperative relationships with customers in many countries and regions around the world, and our products are exported to Europe, North America, India, Japan and other places.
Calcium silicon has a strong deoxidation capacity, deoxidation products are easy to float and easy to discharge.
Ca-Si alloy can improve the performance of steel to improve the plasticity of steel, impact toughness and mobility.
Calcium silicon alloy is used to control the shape, size and distribution of oxide and sulfide inclusions improving fluidity, machinability, ductility and impact properties of the final product.
Ferro silicon calcium has chalking resistance.
Si-Ca is not easily deliquescent.
Applications of Calcium Silicon
Calcium Silicon is a potent deoxidizer and desulfurizer utilized in the production of high grade steels. Although Silicon itself is a powerful deoxidizer, Calcium is by far more powerful. In addition, Calcium Silicon is used to control the shape, size and distribution of oxide and sulfide inclusions improving fluidity, machinability, ductility, and impact properties of the final product.
Calcium Silicon is also utilized in combination with Barium. The Barium increases the density and reduces the vapor pressure of the alloy, thereby improving efficiency. In cast irons it is used mainly by Pipe Shops for the purpose of coating the inside of each mono cast machine.
Calcium Silicon can be obtained in lump or powder form. The most widely used method for intergrated steel applications is in the form of cored wire. This is mainly because calcium has a low density and high reactivity in the ladle making it difficult to introduce and retain in the melt. Cored wire eliminates these variables.
Spec of Calcium Silicon
Grade: Ca30Si60 Ca28Si60 Ca30Si58 Ca28Si58 Ca28Si55
Size: 0-3mm、200mesh、150mesh、100mesh or Customization
|
Spec |
Si |
Ca |
S |
P |
C |
Al |
Fe |
|
Si60Ca28 |
≧60 |
≧28 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si60Ca30 |
≧60 |
≧30 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si58Ca30 |
≧58 |
≧30 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si55Ca28 |
≧55 |
≧28 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si55Ca30 |
≧55 |
≧30 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si50Ca30 |
≧50 |
≧30 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si50Ca30 |
≧50 |
≧28 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
Balance |
|
Si40Ca10 |
≧40 |
≧10 |
≦0.03 |
≦0.03 |
<0.3 |
0.2-2.0 |
≧40 |
Calcium silicon alloy is often used as a deoxidizer in steel smelting. The conventional production methods of calcium silicon alloy can be divided into three types, namely: mixed feeding method, layered feeding method, and two-step method.
Mixing and adding materials, also known as one-step method. Use a carbonaceous reducing agent to simultaneously reduce silica and calcium oxide, that is, mix all the raw materials evenly and add them into the furnace in small batches. The mixing and feeding method is simple to operate and easy to control. However, this method has a fast rate of land sedimentation and a short production cycle.
Layered feeding method. First, add the mixture of lime and reducing agent into the furnace, melt and sink, and then cover it with the mixture of silica and reducing agent. The contact between calcium oxide and silicon dioxide in the furnace is reduced, and the formation of low melting point calcium silicate slag is reduced. Due to the higher furnace temperature, it can produce high-grade calcium silicon alloys.
Two-step method. Two electric furnaces are required. In one electric furnace, calcium carbide is first produced, in the other electric furnace, silicon dioxide is reduced with carbon, and calcium carbide is added to produce the alloy. This process avoids the direct contact between calcium oxide and silicon dioxide, thereby overcoming the problem of low slagging temperature.
Steelmaking how Use Calcium Silicon Casi Alloy Lump
Steel Production: Calcium Silicon is a crucial additive in steelmaking. It is added to the molten steel to improve its properties. It helps deoxidize and desulfurize the steel, resulting in better quality and performance of the final steel products.
Alloying Agent: In the manufacturing of various alloys, such as aluminum alloys, Calcium Silicon is used as an alloying agent to enhance the material's strength, durability, and other desired characteristics.
Deoxidizer in Non-Ferrous Metals: It is also used as a deoxidizing agent in the production of non-ferrous metals like copper and nickel. This helps eliminate impurities from the metal, ensuring a high-quality end product.
Inoculant in Iron Foundries: Calcium Silicon is employed as an inoculant in iron foundries. It promotes the formation of graphite in cast iron, improving its mechanical properties.
Chemical Industry: In some chemical processes, Calcium Silicon can be used as a reducing agent, aiding in chemical reactions and the production of various compounds.
Improving Heat Resistance: When added to certain materials, such as ceramics, Calcium Silicon can enhance their heat resistance and mechanical properties.
Fuel Additive: In some cases, it is used as a fuel additive to control the ignition of fuels like diesel, helping reduce emissions and improve combustion efficiency.
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