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Product Details:
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| CaO: | 45-50% | Al2O3: | 35-40% |
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| MgO: | ≤ 5%; | SiO2: | ≤ 5%; |
| F: | <1% | H2O: | <1% |
The supply of refined slag can be divided into three forms: pre melting, sintering, composite, and electric melting. To meet the needs of various steel development to varying degrees, adjust the physical and chemical indicators reasonably, and achieve the most ideal steel purification effect with minimal cost. In long-term practical use, refining slag has a three in one function of desulfurization, deoxidation, and submerged arc welding for steel liquid, without generating sulfur recovery, making the structure of steel products stable and improving the quality of steel. It can be directly added for use without any remaining impurities, reducing power consumption during refining. The slag washing effect is good, and the effect of adsorbing inclusions is significant.
Refining slag properties:
The main components of refining slag are calcium aluminate, aluminum oxide, silicon oxide, calcium fluoride, magnesium oxide, etc. These metal ions combine to form a composite material of calcium oxide calcium fluoride base, calcium oxide aluminum oxide base, and calcium oxide aluminum oxide silicon oxide base, which is called refining slag. Refined slag is a necessary additive for deoxidation and desulfurization in the refining process of steel enterprises.
Characteristics of refined slag:
1. Reasonable chemical composition is beneficial for quickly slagging and shortening smelting time.
2. Due to its fast slag formation, it can reduce the power consumption of refining time.
3. Reduce the consumption of refractory materials in steel ladles and increase their service life.
4. Has good desulfurization and deoxygenation effects.
5. Due to its low melting point, it has a good adsorption effect on impurities during argon blowing in the ladle and the tapping process of the electric furnace.
6. The ingredients are stable and uniform, and can be produced and packaged according to user needs.
Product physical and chemical indicators:
CaO 45-50%; Al2O3 35-40%; MgO ≤ 5%; SiO2 ≤ 5%; F<1%; Particle size: 0-30mm block shape
Refining slag has advantages such as uniform chemical composition, low melting point, fast melting rate, reduced refining power consumption, and shortened refining time. It is increasingly valued by steel enterprises and is currently one of the important steelmaking additives.
The refined slag produced by our factory is free of impurities such as fluorine, hydrogen, nitrogen, and carbon, which is beneficial for improving the quality of produced steel; Not absorbing water, will not cause erosion to the furnace lining and ladle; Dense structure, easy to transport and store; The product itself has stable physical phase, fast slag formation, and significantly reduces dust pollution in steel mills. The widespread use of refined slag has led to a change in the production process of refining steel in the past, which relied on high alkali materials, slag steel mixing, and external desulfurization. This has greatly improved the efficiency of steel production and improved the quality and performance of steel products.
Refined slag usage:
Before steelmaking, the refined slag is placed in the ladle because the molten steel flows into the ladle from the top layer, causing intense stirring between the molten steel and the refined slag. The refined slag quickly melts into the molten steel and then aggregates and floats. Due to the strong reducibility of refining slag, it has strong deoxygenation and desulfurization ability, which can play a role in removing oxygen and sulfur impurities from the molten steel during the mixing process. At present, the desulfurization capacity of refined slag can reach over 85%, making it an excellent steelmaking additive.
In addition, our company can also customize and produce metallurgical furnace materials of various specifications and indicators according to customer requirements.
