Classification of lightweight castables

Classification of lightweight castables Lightweight castable is a castable mixture made of lightweight refractory aggregate, powder, binder and admixture. Due to its small bulk density and low thermal conductivity, light castable can also be called heat insulation and fire-resistant castable, which mainly plays the role of fire resistance and heat preservation of kiln. Classification of…

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Clay material

Refractory clay is the main raw material for the production of aluminum silicate refractory materials, and its refractoriness requirements are higher than 1580℃ of all kinds of hard clay, soft (semi-soft) clay and clay shale, collectively known as refractory clay. Natural refractory clay, usually clay mainly kaolinite (Al2O3 2SiO2 2H2O) as its main component, that…

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The analysis of crack of castable when heating-up

The analysis of crack of castable when heating-up Oven drying is a crucial link after the construction and before the operation of high alumina castable, which directly determines the future service life of the kiln. When baking high alumina castable, it should be prepared for oven drying, the oven drying time should be controlled, and…

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Advantages of Electric Arc Furnace for Steelmaking

Advantages of Electric Arc Furnace for Steelmaking Introduction Industrial arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 ton units used for secondary steelmaking) (average is 80 to 120 MT). Arc furnaces used in research laboratories and by dentists…

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What to pay attention to when using white corundum as a cast

What to pay attention to when using white corundum as a castable? White corundum is now widely used as an abrasive, but according to the characteristics of white corundum, white corundum can also be applied to other industries, and as a castable is one of the directions. There are many types of castables in applications,…

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How to choose the right refractory material?

Refractories are basic materials for high-temperature industries such as steel, nonferrous metals, petrochemicals, building materials, and electric power, and are important supporting materials for high-temperature industrial thermal equipment. The four major downstream application areas are: steel industry, cement industry, non-ferrous metal smelting process and flat glass industry. The steel industry 70% of the downstream demand…

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What are the refractory materials?

There are many classification methods for refractory materials. According to their chemical properties, they can be divided into three categories: acidic refractory materials, alkaline refractory materials and neutral refractory materials. According to the main mineral chemical components of refractories, they can be divided into: siliceous refractories, aluminosilicate refractories, magnesia refractories, magnesia spinel refractories, magnesia chromium…

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What are refractory materials?

What are refractory materials? Refractory materials are the basis for all high-temperature industrial implementations, with a wide variety and wide application. This article summarizes the application of refractory materials in the four major downstream: steel industry, cement industry, non-ferrous metal smelting industry and glass industry, including blast furnace, converter, electric furnace, pot furnace, LF furnace,…

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The classification of the refractory material

The classification of the refractory material There are many types of refractory material, according to different purpose and requirements, there are many classification methods, the commonly used several classification methods are as follows: 1. According to the classification of refractoriness: 1) Normal refractory: refractoriness is 1580-17709 ℃; 2) High-grade refractory materials: refractoriness is 1770-2000 ℃;…

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Main performance index of the refractory materials

Main performance index of the refractory materials Main performance index of the refractory materials include: 1: Refractory performance as refractoriness to withstand high temperature without melting called refractoriness. Refractory Material has no definite melting point, so that refractoriness is actually refers to the refractory material softening temperature to a certain extent. Refractoriness is one of…

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