Firebricks are bricks that are prepared by mixing porcelain soil and clay, and after placing them in a mold, they are baked in ovens with a temperature above 1500 degrees Celsius. After leaving the oven, these bricks have a very high resistance to heat, and you can use them in the interior design of fireplaces, ovens, ovens and other things with ease. Refractory brick is a functional building material that has a dense and delicate molecular structure. The main raw materials for making refractory bricks include silica and aluminum, which cause the presence of black grains in the brick. During the production of white bricks, these materials are removed from the soil of the brick. so that its color is completely white and perfect. In addition, there are other metal oxides such as ferric acid and titanium in the composition of firebrick soil. Easy and quick installation is one of the main advantages of using these bricks, which has made them popular among construction engineers.
Production steps of refractory bricks
The production steps of facing bricks are not very complicated, but the quality of the soil used in the preparation of these bricks and the temperature of the kiln during baking directly affect the quality of the bricks. In the process of making firebricks, first the required stones and raw materials extracted from the mines are turned into soft soil by special machines so that it can be used in the production of bricks. In general, the production steps of refractory bricks are as follows:
Grinding and conversion of raw materials: At this stage, stones and other raw materials are ground to become soft soil.
Composition of materials: Soft soil obtained from The previous stage is transferred to the furnaces, where it is combined with other materials required for the production of refractory bricks, such as silica and aluminum, so that it is ready for the production of bricks. Molding and pressing: Mortar resulting from the combination In the first step, the material is transferred to special molds and put under pressure to produce firebricks in the desired shape.
Firing: The firebricks are transported in wagons to the firing furnaces. At this stage, the moisture of the material is completely lost and firing begins at a temperature above 1000 degrees Celsius, this stage generally takes three days.
Cooling and packing: After brick firing Refractory panels are transferred to the cooling stage to reduce their temperature. Then the bricks are packed and distributed in the market.
Application of refractory brick
Refractory facade brick is one of the practical and civilized building materials that has many fans in the construction industry and it is used in different parts of a building. Among the most important applications of refractory bricks, the following can be mentioned:
Building facade: Firebrick facade is used as a main component in the design of building facades. These bricks create a beautiful and resistant facade as the outer covering of the building. The choice of different colored types of refractory bricks allows designers to create unique facades in accordance with the style and environment of the project. Stairs and ceilings: The refractory bricks can be used in stairs, entrances. Buildings and internal ceilings can also be used.
Industrial projects: In some industrial projects, especially in the chemical and thermal industries that require heat-resistant materials, refractory bricks are used as part of structures or heat transfer.< br>Special projects: Refractory brick is used exclusively for special projects such as creating ovens, barbecues, fireplaces and other spaces that are exposed to heat.