Refractory bricks of chamotte clay , or how best to build stoves and fireplaces in the house ?

manufacturing refractory bricks and scope

begin with, that the first refractory brick red appeared in Russia in the middle of the XVII century.Making it was due to the fact that for industrial furnaces in many plants needed was a special heat-resistant material.He needed, and in the regeneration of chimneys and fireplaces in private homes.Typical brick simply do not withstand high temperatures.While on the external characteristics - size and shape - they do not differ.Weight refractory bricks and is 3.4 kilograms.

main ingredient in its manufacture - it burned refractory clay.Or else it is called grog.The composition of the refractory bricks (refractory) comprises: 70% of clay, as well as graphite or coke powder.Recent required to process the material firing cracks arose.The amount of certain ingredients may vary depending on the species.But the most common yet Fireclay refractory bricks.

this material is used in metallurgy, glass-blowing, porcelain industry.Because it makes the thresholds, codes for industrial ovens.It is in these later burned fuel, oil, combustible gases.In addition, the use of refractory brick kiln and home users in the construction of fireplaces.This is due not only to the ability of a material to withstand high temperatures, but also the ability to dissipate heat, which is extremely important to create coziness in the house.

Types of refractory bricks

Depending on the purpose for which the material will be used, it is divided into the following types: core, carbon, silica, alumina .The first is made of lime-magnesia composition and is used mainly in the metallurgical industry (for example, when they receive the Bessemer steel).Carbon is used only in blast stoves that require extremely high thermal loads.It is made from coke and extruded graphite.

Alumina - able to withstand rapid temperature fluctuations.It is used in environments where t = 1000-1300 ° C.Today is the most common in the group.Quartz is used where the stove walls have a direct contact with fire or metal.It is unacceptable contact with lime, alkalis.It consists of sandstone and quartz with some addition of clay.

few words about firebrick

As already mentioned, the most popular is the fireclay bricks.If all previous types, basically intended for different purposes in industry, the refractory material commonly used in everyday life.Can be used in almost any order, it is made stoves, chimneys and sauna in the house, usually where the temperature does not reach 1,350 ° C.The same refractory brick lining can be used for fireplaces.

Make it into conformity with GOST 390-69.It has this refractory brick dimensions 230 * 113 * 65 mm and 250 * 123 * 65 mm.

composition, as already mentioned, contains 70% fire clay (or refractory clay), and coke and graphite powders.Its structure, to a greater extent, granular, sand with yellowish tinge.According to its characteristics has a large thermal capacity (ability of the material to store heat), inertia (long to heat up, but slowly cools), heat resistance .