Properties of refractory bricks

Refractory material is fired from refractory clay or other refractory raw materials. Pale yellow or brownish. Refractory bricks are mainly used for building smelting furnaces, which can withstand high temperatures from 1580 degrees Celsius to 1770 degrees Celsius, also called fire bricks. A refractory material of a certain shape and size. According to the preparation process, it can be divided into fired bricks, non-fired bricks, fused bricks (fused cast bricks), refractory and heat-insulating bricks; according to shape and size, it can be divided into standard bricks, ordinary bricks, special bricks, etc. Refractory bricks can be used as high-temperature building materials and structural materials for building kilns and various thermal equipment and can withstand various physical and chemical changes and mechanical actions at high temperatures, such as refractory clay bricks, high alumina bricks, silica bricks, magnesium bricks, etc. Next, we will introduce the nature of refractory bricks to you.

The following is a list of contents:

• Properties of refractory bricks

• Physical and chemical properties of refractory bricks

Properties of refractory bricks

The main components of refractory bricks are determined by the quality and characteristics of the refractory material; the unit volume weight and density of refractory bricks are higher, indicating that the better the density of refractory bricks, the higher the strength maybe, but the higher the thermal conductivity may be porosity. Although there is no specific requirement for the apparent porosity of refractory bricks in general, as a manufacturer, our company must strictly control the apparent porosity; the softening temperature of refractory bricks under load, also called the deformation temperature under high temperature load, this parameter is very important and marks the refers to the high temperature resistance of refractory bricks; the thermal shock resistance of refractory bricks refers to the ability to resist rapid changes in temperature without being damaged; the compressive strength of refractory bricks refers to the maximum pressure capacity under normal temperature; the resistance of refractory bricks flexural strength, which refers to the ability to withstand shear pressure; the linear rate of change of refractory bricks, also called burning line change or residual line change, refers to the change in volume expansion and contraction each time the same temperature changes, if each expansion the same as shrinkage, the linear rate of change is defined as 0.

Physical and chemical properties of refractory bricks

Refractory bricks have certain wear resistance; Refractory bricks have certain thermal conductivity, under the condition of the unit temperature gradient, the heat flow rate through the unit area of the material is related to the porosity; Refractory bricks have certain impact resistance, impact resistance the better, the longer the service life; Refractory bricks also have a certain slag resistance, which refers to the ability to resist the erosion of slag at high temperatures without being damaged, which is particularly important.

The above are the various properties of refractory bricks. There is still a lot of room for improvement in the development of refractory bricks. The company will deeply explore the relevant properties of refractory bricks and strive to make refractory bricks better. After reading the above content, if you are interested in refractory bricks, you can check the website https://www.yufengrefractory.com/ of our company, we look forward to your arrival.