What are the standards for the chemical composition of bata tahan api ingredients?

The chemical composition of refractory brick ingredients must meet the requirements of refractory bricks, and should be higher than the index requirements of refractory bricks. The chemical composition includes the content of the main components of refractory bricks, the total amount of fusible impurities and the allowable amount of harmful impurities. Regulation.

In the current production of refractory bricks, a semi-dry pressing method is generally used, which requires that the refractory brick blanks should have sufficient binding properties, so the ingredients should contain binding ingredients.