company news about Calculation method of temperature change resistant refractory bricks

Calculation method to determine the change of temperature resistant refractory bricks, it is very complex and not completely, forcing the nature to use direct method to determine. For this purpose, the end of the standard size refractory brick is heated to 850℃ in the electric furnace, and then the flow of cooling water. OCT3267 according to standard methods, the temperature change resistance is according to the number of sudden cold and hot evaluation, it is higher than its first part can lose 20% before the durability of the thermal shock times off. Heating and cooling changes in the standard test is very intense, and in the industrial furnace refractory bricks actual use conditions are not consistent.