What are the technical indicators to measure the performance of refractories?

1.Refractoriness When the refractory material is subjected to sufficient high temperature, it will gradually soften and melt into a viscous liquid. Therefore, refractoriness refers to the temperature at which a refractory material can resist high temperatures without melting. It is one of the main aspects of performance of refractory materials. The refractoriness is measured with …

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How to prevent steel leakage between ladle slide gate?

Sliding plate is the core component of ladle sliding spout, which is the component that directly controls steel pouring and determines the function of sliding spout. If the sliding plate leaks steel in the process of steel pouring, it will cause the continuous casting to break pouring, or cause the vicious accident of burning out …

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How to classify refractory materials as acid, alkali and neutral?

Our factory have three categories of refractory materials: Acid, Basic & Neutral. Apart from these we can classify refractories into few more categories like – Special refractories, Insulating Refractories, & Cermets. Refractory materials are non-metallic materials with refractoriness not less than 1580℃. Widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, power and other industrial …

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Improvement of Sintering Method for Induction Furnace

There are mainly two types of Induction Furnace. They are channel Induction Furnace, and coreless Induction Furnace. Advantages of Using An Induction Melting Furnace Disadvantages of traditional sintering method: How does the Induction Furnace work? An induction furnace is an electrical device used to heat metal or other conductive materials. An induction furnace consists of …

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Refractories used in reheating furnace

What are the refractories used in furnaces? Heat treatment temperature of the reheating furnace is not high, generally its service temperature is lower than 1300℃. For reheating furnace lining, usually we use Al-Si refractory materials which contains alumina 36-75%. The reheating furnace is used for bloom, continuous casting, small steel ingot to meet the temperature …

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Construction method of refractory casting material

Castable lining construction 1. Refractory castable construction 2. Castable stir Mixing time should be no less than 5 minutes. Operation to use a forced mixer, stirring should first dry mixing, then add 80% solvent stirring, and then depending on the degree of wet and dry construction and specific parts of the request, and then slowly …

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Development of ladle lining refractory materials

20th Century 50–70 years, China’s steel plants mainly used aluminosilicate refractory materials, including clay, alumina brick and so on. Since the 1980s, China has successively developed the aluminum-magnesium carbon, coal quality calcium and magnesium and other several series of new steel package refractories. Wherein the aluminum-magnesium carbon refractory materials are of varieties, all specifications, is …

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Function and classification of ladle shroud

Ladle shroud, also named as long nozzle, as a refractory product it is used as a connection nozzle between Ladle and Tundish. In order to keep the molten liquid from being oxidized and splattered when it flows from ladle to tundish, a shroud is needed to be installed underneath the ladle. One side is connected …

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Classification and application of Monoblock Stopper

Monoblock stopper is formed by static pressing. The shape and size depend on the capacity of tundish, the height of steel surface, horn shape of tundish nozzle and aperture size. Monoblock stopper head is monoblock stopper hollow with argon blowing hole and air plug. The key point is fixing method. One type is fixed by …

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Refractory bricks used for different parts of blast furnace

Blast furnace is the main equipment for ironmaking, and clay brick is the earliest furnace lining material used in blast furnace. Blast furnace has the advantages of large output, high productivity and low cost, which is unmatched by other ironmaking methods. The refractory materials and refractory bricks used in diffreent parts of blast furnace are …

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Analysis of the advantages and disadvantages of EAF and induction furnace steelmaking

With the increase in steel production, a large amount of scrap steel is also produced in the society, which provides conditions for electric furnace steelmaking in cast steel production. As electric furnaces that use electricity as heat energy, they can be divided into two categories. One isEAFs, which use electric arcs to generate heat to …

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Characteristics of AMC brick

As a refractory material for the lining of the refining furnace, the aluminum-magnesium carbon brick fully exerts the strong slag corrosion resistance of the magnesia, the low expansion of carbon and the high thermal conductivity, and makes up for the defect of the spalling resistance of the magnesia. The excellent performance of aluminum-magnesium carbon brick …

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Thermal conductivity of refractory bricks

Refractory bricks thermal conductivity The thermal conductivity of fire bricks is represented by the thermal conductivity that has the ability to transfer heat. Thermal conductivity represents the amount of heat per in unit area, unit time and unit temperature gradient in the energy transfer process. At 1000 ℃The thermal conductivity of various refractory bricks rate …

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How to manufacture magnesia carbon brick

This article introduces the process of manufacturing magnesia carbon bricks, understands how to manufacture magnesia carbon bricks and other product features of magnesia carbon bricks. The process flow of magnesia carbon brick production 1.Broken to pieces 2.Ingredients (weighing) 3.Preparation of mud (mixing, kneading) 4.Forming 5.Heat treatment The details of manufacturing magnesia carbon bricks are as …

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How to make high alumina brick

Making high alumina brick as following: The most common way to manufacture high alumina brick is through the firing of bauxite, which naturally contains a blend of both aluminum oxide and something called “kaolinitic clay”, which is a clay composed of layered silica. Once this material is fired it creates a composition of alumina and mullite, …

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How to make tundish nozzle in continuous casting

Tundish nozzle plays a very important role in ladle steel making. This article introduces how to make tundish nozzle and the types of tundish nozzle clogging. On the other hand, it is also possible to understand the types and differences of refractory nozzles.Tundish nozzle manufacturing method, relates to a production method of a molten steel …

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