Boric acid also has a certain use in ramming mass, and can also have a certain effect on ramming mass.
Boric acid plays the role of glazing in ramming mass, which is the bond between sand cementing agent and sand grains, and the main element of forming sintering layer.
Excessive addition makes the semi-sintered layer of ramming material thicken and the powdery buffer layer thins and disappears. The result is that the crack caused by cooling shrinkage of lining extends to the whole furnace wall and reduces the service life of lining.
Boric acid also plays an important role in enhancing the sintering intensity of lining and adjusting furnace temperature.Therefore, it is important to control the amount of boric acid.