Lightweight thermal insulation and refractory materials - manufacturers of magnesium aluminum bricks and magnesium bricks

Lightweight thermal insulation and refractory materials - manufacturers of magnesium aluminum bricks and magnesium bricks

Alkaline series Fire brick. Basic Fire brick refers to the refractory products with Basic oxide such as Mg0 and CaO as the main components. The main varieties of magnesia brick manufacturers are as follows.

（1） Magnesia alumina brick refers to Fire brick with magnesite as raw material, periclase as main crystal phase, and MgO content of 80%~85%. Its products are divided into two categories: metallurgical magnesia and magnesia products. According to their chemical composition and usage, there are Martin sand, ordinary metallurgical magnesia, ordinary magnesia brick, magnesia silica brick, magnesia aluminum brick, magnesia calcium brick, magnesia carbon brick, and other varieties. Magnesia Fire brick is the most important product of alkaline Fire brick, with high refractoriness and good resistance to alkaline slag and iron slag. It is an important high-grade Fire brick. Mainly used for open-hearth furnaces, oxygen converters, electric furnaces, and non-ferrous metal smelting.

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（2） Dolomite brick is an alkaline Fire brick produced with dolomite as the main raw material. Widely used in alkaline converters, it can also be used as a lining for certain external refining ladles.

（3） Forsterite Fire brick is a Fire brick mainly composed of Forsterite 2MgO · SiO2. Mainly used for grid bricks in open hearth regenerative chambers, bricks for ingots, heating furnace bottoms, and also has good application effects in copper smelting furnaces.

Carbon containing Fire brick. Carbon containing Fire brick refers to Fire brick products made of carbon or carbon compounds, with different forms of carbon as the main component, which are mainly divided into the following categories.

（1） Carbon brick is a kind of high temperature resistant neutral Fire brick product made of carbon material as the main raw material with proper amount of binder. Carbon bricks are widely used for laying the bottom, hearth, bosh, and lower part of the blast furnace. It can improve the continuous operation time of the blast furnace and extend its service life. In addition, carbon bricks are also widely used in the electrochemical industry, chemical industry, Petrochemistry industry, electroplating industry, ferroalloy industrial furnace (or equipment lining), acid liquor, alkali liquor tank lining and pipeline, and furnace lining for smelting non-ferrous metals (such as lead, aluminum, tin, etc.).

（2） Graphite refractory products are refractory materials made from natural graphite as raw material and clay as a binder. This type of product includes graphite clay crucibles, distillation pots, plug bricks for casting steel, nozzle bricks, and lining bricks for steel drums, etc. Among them, graphite clay crucibles are the most widely produced and widely used for steelmaking and smelting non-ferrous metals.