Chinese Silicon Calcium Powder

1. Ingredient List

2. Related introduction

The production process of calcium silicate alloy is very important, mainly at high temperature and lime and silica to form a kind of calcium silicate with a relatively low melting point, where the boiling point of calcium is relatively low and easy to volatilize to produce calcium vapor. And SiO2 is reduced to SiO (gas), so the gas discharged from the furnace is CO, Ca (gas), and SiO (gas). The loss of calcium and silicon in the furnace gas is about 10% each. SiO (gas) and Ca (gas) react with carbon when they pass through the material layer, and most of them are converted into CaC2 and SiC, so the reactivity of the carbon-reducing agents is important for smelting silicon-calcium alloy. Calcium oxide and silica with carbon at high temperatures to generate CaC2 and SiC is the intermediate product for the production of silica-calcium alloy.

Since calcium has a strong affinity with oxygen, sulfur, hydrogen, nitrogen, and carbon in the steel, calcium silica alloy is mainly used for deoxidizing, degassing, and fixing sulfur in the steel. Calcium silica produces a strong exothermic effect when added to the steel. Calcium becomes calcium vapor in the steel, which has an agitation effect on the steel and is beneficial to the floating of non-metallic inclusions. After deoxidation of calcium silica alloy, it produces non-metallic inclusions with larger particles and is easy to float, and also changes the shape and nature of non-metallic inclusions. Therefore, calcium silica alloy is used to produce clean steel, oxygen, sulfur content of low-quality steel, as well as oxygen, sulfur content is very low special performance steel. The addition of calcium silica alloy can eliminate the use of aluminum as a final deoxidizer of steel in the ladle water mouth of the tumor, and continuous steel casting | ironmaking intermediate tank water mouth blockage and other problems. In steel refining technology outside the furnace, the use of calcium silica powder or core wire for deoxidation and desulfurization, so that the content of oxygen and sulfur in steel to very low; also control the form of sulfide in steel, while improving the utilization of calcium. In the production of cast iron, in addition to deoxidation and purification, calcium silica alloy also plays a pregnant role, helping to form fine-grained or spherical graphite; so that the distribution of graphite in gray cast iron is uniform, reducing the tendency of white mouth; and can increase silicon, desulfurization, improve the quality of cast iron.

3.Product production

4. Quality control

5. Support sea ,land and air transportation

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