What Are The Types And Functions Of Binders Used For Tundish Gunning

The binder used for tundish gunning material is mainly used in the low-temperature baking process. Through the curing and carbonization of the binder, the gunning material has a certain strength and meets the requirements when used at high temperature. Binders are divided into two categories: low-temperature binders and medium temperature binders. Low-temperature binders play a role in setting. Medium temperature binders mainly ensure that the working layer of tundish gunning material has sufficient strength after being baked at a medium temperature of 1100 ℃, so that it can resist the scouring of molten steel and avoid the pollution caused by the involvement of refractory materials in molten steel. Common medium temperature binders include borax, sodium fluoride, silica powder, etc