Physical and Chemical Index of High Alumina Refractory Bricks

Physical and chemical index is one of the important references, why the physical and chemical indexes of high alumina bricks are so important, what does the physical and chemical index present? Today I will introduce the physical and chemical index of high alumina bricks.

Definition of High Alumina Bricks Physical and Chemical Index

The physical and chemical index of high alumina brick refers to the physical property, chemical property and chemical composition, chemical property of the high alumina brick, and it is also the quality index of the high alumina brick. The physical and chemical indexes of high alumina firebricks are controlled according to the national standard and tested according to the standard method.

What are the physical and chemical indexes of high alumina bricks?

There are many physical and chemical index of high alumina bricks

1. Chemical index

it means that the main chemical composition content, which is used to inspect the alumina content in high alumina brick. Customers pay great attention to aluminum content when purchasing high alumina bricks, so this index must be tested.

2. Physical Index

The inspection of volume density is to examine if the high alumina refractory brick is compact, the smaller the porosity of the high alumina brick, the better the density degree is, and the high alumina brick has good effect.

Compressive strength, the compressive strength of the high alumina brick can be measured to withstand the pressure of the high alumina brick as the lining of the kiln.

0.2 MPa refractoriness under load, refractoriness under load is inspected in 0.2 MPa of high alumina refractory brick is to check which temperature spot that begin reducing the effect of high alumina bricks as linings.

Thermal shock stability, which reflect that the ability of high alumina brick resist to rapid thermal and quench.

The change rate of reburning line, is the residual shrinkage of high alumina brick after heating for a certain period of time and after cooling.

Want to Find the Best High Alumina Refractory Brick Manufacturer?

The above are the important test items of high alumina refractory bricks physical and chemical index , at the same time they’re customer’s purchase requirement. If you have any problems of high alumina bricks, welcome contact with us, RS refractory is very glad to serve you.