Foshan Huanya New Material Co., Ltd.

What are the basic requirements for refractory bricks for kilns

Jan 02, 2021

The main purpose of using refractory bricks as the inner lining of the kiln is to make the kiln more efficient production without delaying the production due to the damage of the lining refractory bricks during the production process. Therefore,Refractory Bricks the refractory bricks used in the kiln should be long-lived and efficient. Choose the appropriate refractory brick for the starting point. What are the basic requirements that refractory bricks for kilns should meet: In order to meet the requirements of high-temperature operation,Refractory Bricks they should have the properties of not softening or melting at a sufficiently high temperature. It can withstand the load of the kiln and the stress in the process of operation,Refractory Bricks and will not lose the structural strength,Refractory Bricks soften deformation and collapse at high temperatures,Refractory Bricks usually expressed by the load softening temperature.

The volume is stable at high temperatures,Refractory Bricks and the kiln masonry or pouring body will not collapse due to excessive expansion of the product, or cracks due to excessive shrinkage,Refractory Bricks reducing the service life. It is usually measured by linear expansion coefficient and reheating shrinkage (or expansion). Refractory bricks are greatly affected by the operating conditions of the kiln. Positive changes in temperature and uneven heating make the furnace easily damaged. Therefore,Refractory Bricks it is required to have a certain degree of thermal shock resistance. Refractory bricks are often exposed to the chemical action of liquid solutions, gaseous or solid substances during use,Refractory Bricks causing the products to be corroded and damaged. Therefore,Refractory Bricks products are required to have a certain resistance to erosion.

In the course of use, refractory bricks are often subject to high-speed flow flames and smoke,Refractory Bricks erosion and erosion of liquid metal and molten slag, and impact and abrasion of metals and other materials. Therefore,Refractory Bricks it is required to have sufficient strength and wear resistance. The quality of refractory bricks depends on their properties,Refractory Bricks which is the standard for evaluating products. The proper selection of refractory bricks is also based on their properties.


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