Under what circumstances does an eccentric bottom tapping (EBT) hole require repair?

Eccentric Bottom Tapping (EBT) Electric Arc Furnace The EBT (Eccentric Bottom Tapping) electric arc furnace smelting process employs a “hot heel” practice (retaining a portion of the molten steel and slag). This establishes a molten bath right at the start of melting; combined with intensive oxygen blowing and bottom stirring, it creates favorable conditions for […]

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The difference between refractory bricks and ordinary bricks

News, Uncategorized / yilongrefractory

The most common type of brick we use for building houses is ordinary red brick, while refractory bricks are mainly used in the construction of high-temperature furnaces, aluminum smelting furnaces, and other high-temperature environments. Although both are bricks, they are fundamentally different. 1.Differences in shape and color 2.Different occasions of use 3.Different material compositions There

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Process factors affecting the performance of magnesia-carbon bricks

News, Uncategorized / yilongrefractory

Magnesia-carbon bricks are non-burning composite refractory materials made from high-melting-point basic oxide magnesium oxide (melting point 2800℃) and high-melting-point carbon materials that are difficult to wet by slag, with the addition of various non-oxide additives. They are bonded together using carbonaceous binders. Magnesia-carbon bricks are mainly used as linings in converters, AC electric arc furnaces,

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What are the commonly used binders for aluminum-magnesium castables?

News, Uncategorized / yilongrefractory

In recent years, the rapid development of ladle refining and continuous casting technologies has transformed the ladle into both a vessel for holding molten steel and a refining unit. This has significantly extended the residence time of molten steel within the ladle and led to higher tapping temperatures and more rigorous smelting conditions, resulting in

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Process Improvement of Refractory Materials for the Slag-Blocking System of a 120t Converter

News, Uncategorized / yilongrefractory

1.Converter slide-gate slag-blocking process A key technology for producing clean steel is slag-free tapping, specifically the use of a slide-gate slag-blocking system at the converter taphole. Because the slide gate operates rapidly, it effectively blocks both initial and final slag during the tapping process. Furthermore, by integrating infrared slag detection with PLC control technology, the

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Performance characteristics and production process of magnesium-carbon refractory bricks

News / yilongrefractory

Magnesia-carbon bricks are refractory materials made from high-melting-point basic magnesium oxide (melting point 2800°C) and high-melting-point carbon materials that are resistant to slag wetting. Various non-oxide additives are incorporated, and the mixture is bonded using a carbon-based binder. Magnesia-carbon bricks are primarily used for the linings of converters, AC arc furnaces, and DC arc furnaces,

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What are the characteristics and applications of various basic refractory castables?

News / yilongrefractory

Basic refractory castables are granular and powdered materials formulated from refractory aggregates—primarily magnesia—along with binders and additives. Based on their composition, they can be classified into types such as magnesia, magnesia-alumina, magnesia-chrome, magnesia-silica, and spinel castables. What are the characteristics and applications of these basic refractory castables? Here, a manufacturer of refractory castables outlines their

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Precautions for installing refractory castables and solutions for damage to refractory castables

News / yilongrefractory

Refractory castables, also known as unshaped refractories, are granular and powdered materials made from refractory substances, combined with a specific amount of binder and water. They possess high fluidity, making them suitable for application via casting; they are unshaped refractories that harden without the need for heating. They are typically formed on-site through casting, vibration,

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An in-depth analysis of the anti-oxidation properties of magnesium-carbon bricks

News / yilongrefractory

Magnesium-carbon bricks for oxidation prevention Magnesia-carbon bricks are composite materials consisting of magnesia and carbon. Graphite plays a key role in inhibiting slag penetration and providing erosion resistance, while resin-bonded carbon provides the structural strength of the bricks. However, the greatest weakness of both resin-bonded carbon and graphite is their susceptibility to oxidation. Therefore, since

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A comparison of two repair methods for converter tappings and the application of a new repair material

News / yilongrefractory

The application of top-bottom oxygen blowing technology and slag quenching and furnace protection technology has expanded the range of products produced in the converter and significantly improved quality and production efficiency. Tapping, as the final step in the converter steelmaking process, has become a key factor influencing the quality, output, and product variety of steelmaking.

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