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How to control the thermal expansion coefficient of alumina fire brick?

2024-01-05 Naš blog

Alumina fire brick is the most representative product of aluminum-silicon refractory bricks. They have higher refractoriness than clay bricks and can be used for many years at high temperatures of 1300℃-1550℃ without erosion or wear. However, the biggest disadvantage is that Thermal shock stability against temperature changes is relatively poor.

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Introduction to the uses of fused magnesia

2023-12-29 Naš blog

Fused magnesia is formed by melting magnesite ore at high temperatures in an electric arc furnace. The main features of fused magnesia are high melting point (up to 2800°C), stable chemical properties, high compressive strength, erosion resistance, and corrosion resistance. , Magnesia is an important raw material for metallurgy, building…

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$6 types of refractory materials commonly used in coke ovens$

6 types of refractory materials commonly used in coke ovens

2023-12-19 Naš blog

A coke oven is a furnace used to refine coke. Modern coke ovens comprise a carbonization chamber, combustion chamber, regenerator, chute area, furnace top, foundation, flue, itd. The coal material in the carbonization chamber is heated and turned into coke under air-isolated conditions. What refractory materials are commonly used in…

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What are the characteristics of the synthesis of fused magnesia calcium sand?

2023-11-29 Naš blog

Fused magnesite calcium sand is made from natural magnesite and dolomite ore as raw materials, mixed according to a certain proportion, and melted at a high temperature above 2750°C. Fused magnesia calcium sand is fully smelted and has a complete crystal lattice and low activity. Its microstructural characteristics are: the…

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$Refractory materials for oxy-combustion glass kiln$

Refractory materials for oxy-combustion glass kiln

2023-11-27 Naš blog

Oxy-combustion glass kiln, the volume concentration of water vapor in the flame space is greatly increased, and the volume concentration of alkali volatiles increases by 3 to 6 times. Traditional air-assisted combustion kilns use siliceous materials when there is a lot of space in the upper part. High-concentration water vapor…

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$Effect of different graphite content on magnesia carbon refractory bricks$

Effect of different graphite content on magnesia carbon refractory bricks

2023-11-24 Naš blog

Magnesia carbon refractory bricks are an alkaline refractory material made of magnesia and graphite as raw materials and using various binders. As an important component of magnesia-carbon refractory materials, graphite content has a crucial impact on the performance of magnesium-carbon refractory materials. Due to the high thermal conductivity of graphite,…

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