How to identify the quality of brown corundum brick

Brown corundum can be made into abrasive, can also be made into bricks, because brown corundum itself has good performance, so after making bricks, brown corundum is a very practical refractory brick. However, because the performance of the product is not clear, we must learn to identify the quality of brown corundum brick due to the use of products.
Brown corundum brick is mainly composed of brown corundum, so its quality is good as long as the quality of brown corundum can be known. Usually, brown corundum is divided into one, two and three grades, and their component content, performance and quality are also different. Generally good primary brown corundum, which contains high aluminum oxide composition, because the content of aluminum oxide is the main standard to determine the quality of brown corundum, but also why the quality of primary brown corundum is good.
The quality of secondary and tertiary brown corundum will be reduced with the reduction of content. In addition to identifying from the composition content, through the color of brown corundum can also be a good distinction between the grade and quality of the product, we can identify the quality of brown corundum brick according to the quality of brown corundum.