Characteristics of refractory brick

Refractory brick is made of refractory clay or other refractory raw materials. Light yellow or brownish. Refractory brick is a refractory material with a certain shape and size. According to the preparation process to divide can be divided into firing brick, brick, electric melting brick, and refractory insulating brick; according to the shape and size can be divided into standard brick, brick, and type specific brick.

Refractory bricks can be used as building materials and structural materials for building furnaces and various thermal equipments, and can be subjected to various physical and chemical changes and mechanical effects at high temperatures. For example, refractory clay brick, high alumina brick, brick, brick etc… Refractory brick is one of the most widely used products, so it has the characteristics of what kind of it?

1, chemical composition: the main components of the quality and characteristics of the decision to fire brick.

2, bulk density: the unit volume weight, the density is big, that the fire brick density is good, the intensity may be high, but the thermal conductivity may be big.

3, apparent porosity: no specific requirements, but as a refractory brick manufacturers muststrictly control the apparent porosity.

4 and refractoriness under load: also called high temperature load to deformation temperature, this parameter is very important, resistance to high temperature resistance of refractory bricks.

5, thermal shock resistance: resistance to temperature changes and not the ability to destroy.

6, the compressive strength: bear (normal temperature) the maximum pressure capacity of 7, flexural strength: the ability to withstand shear stress.

8, linear change rate: also called reheating linear change or residual line change, firebrick every time at the same temperature production quality.