Refractory Ramming Mass for steel furnace

Refractory Ramming Mass for steel furnace

Ramming mass is granule or powder shape material made from refractory raw material, usually, there are some proportion of binder, after rational gradation and tempering, loose amorphous ramming mass is produced. It is similar to dry-hardened castable, but some ramming mass doesn’t have self-setting binder, so fierce ramming should be applied during construction, that’s why it is called ramming mass.
Ramming Mass can be classified into high alumina, corundum, silica, magnesia, chromite, zirconia, carborundum plastic refractory, etc

Properties and Applications
Compared with other same material amorphous refractory, ramming mass appears dry or semi dry loose shape, most of ramming masses don’t have cohesiveness before forming, so strong ramming is needed to get compact structure. Most ramming mass has low cold strength before sintering, middle temperature strength of some ramming mass is also not high, only when it is heated to sintering temperature, or the carbon containing compounds are coked, the ramming mass can obtain strong bonding and get high strength.
Ramming mass are mainly used as lining material of various smelting furnaces which directly contacts with molten furnace load. Besides constructing integral furnace lining, ramming mass can also be used for manufacturing large size refractory products.