Spraying technology and application of refractory fiber

China had in 1981, the aluminum silicate fiber was the focus of the promotion, so the use of refractory fiber materials, there is a very large speed of development, because the fiber furnace lining capacity is very light, heat capacity is relatively small, so the thermal conductivity is relatively low.

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What’s the difference between refractory mortar and refractory cement?

Refractory mortar at any time is matched with refractory bricks used materials, such bonding and masonry methods, some customers will wonder why not use refractory cement?

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Comprehensively understand the material properties of casting powder

Casting powder is an important auxiliary material in continuous casting. Along with the development of steel-making and continuous casting technology in China, the technology of slag protection has been continuously improved.

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What are the factors affecting the absorption of inclusions in molten steel by casting powder?

The submerged nozzle injection in the mold causes the molten steel to move convection, and the inclusions floating on the steel slag interface of the mold may be involved in the solidification shell due to the fluctuation of the liquid level of the mold, resulting in bad subcutaneous inclusions or slag inclusion on the surface and affecting the surface quality. 

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How does the casting powder lubricate in CCM?

In the process of casting, the mould vibrates up and down, and the casting billet moves downward, causing friction between the surface of the solidified shell and the copper wall, making the billet shell and the copper wall bond, increasing the resistance of the billet drawing, leading to the crack of the billet shell in the light case, and cracking of the billet shell in the serious case.

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What are the main physical and chemical properties of continuous casting powder?

The chemical composition of each grade of protective slag should be analyzed. The content of each oxide should be within the specified range. This is the minimum index.

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Technical characteristics of refractory castables

Refractory castable is a kind of amorphous refractory which is widely produced and used at present. Mainly used to build a variety of heating furnace lining and other integral structures. Certain quality varieties can also be used in smelting furnaces.

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Classification of Taphole clay – water taphole clay

With the development of large-scale blast furnace, smelting, high wind pressure and low furnace times, the quality of the mortar is more and more high, and from the point of view of environmental protection, the requirements of the mortar in the iron hole when no smoke, iron hole week gas without benzene.

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Function and performance of blast furnace taphole clay

Small blast furnaces are generally provided with an iron outlet and 2 ~ 3 slag outlet, large and medium-sized blast furnaces have 2 ~ 4 iron outlet and 1 ~ 3 slag outlet. The taphole clay used to plug the iron opening is squeezed in by a mud gun, so it is also called gun mud.

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Refractory material scheme for mineral thermal reduction furnace

Refractory materials for mineral thermal reduction furnace include three parts: refractory materials for furnace top, refractory materials for furnace wall and refractory materials for molten pool (furnace slope and furnace bottom). Refractories in different parts are in different working states during ferroalloy smelting.

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