Direct contact melting erosion method: Under high-temperature sealing conditions, molten alkaline substances are directly in contact with the test block for erosion reaction, and then the performance changes of the sample before and after erosion are measured. The smaller the change, the better the alkali resistance of the refractory brick

Mixed erosion method: Mix coke particles with anhydrous potassium carbonate (K2CO3), embed the test block in it, and perform erosion reaction under high-temperature sealing conditions to measure the size change or strength decrease rate of the test block before and after erosion. Similarly, the smaller the change, the stronger the alkali resistance