How to identify the quality of brown corundum brick

Brown corundum can be made into abrasive or brick. Because of its good performance, brown corundum after making brick is a very practical refractory brick. However, because the performance of the product is not clear at a glance, we must learn to distinguish the quality of brown corundum brick because of the use of the product.
Brown corundum brick is mainly composed of brown corundum, so its quality is good, just look at the quality of brown corundum. Generally, brown corundum is divided into three grades: grade I, grade II and grade III, and their composition content, performance and quality are also different. Generally, good grade I brown corundum contains high content of aluminum oxide. Because the content of aluminum oxide is the main standard to determine the quality of brown corundum, it is also the reason why the quality of grade I brown corundum is good.
The quality of secondary and tertiary brown corundum will decrease with the decrease of content. In addition to identifying from the content of ingredients, the color of brown corundum can also be used to distinguish the grade and quality of products. It is easy to identify the quality of brown corundum bricks according to the quality of brown corundum.