Gunning Refractory(Gunning Mass)
Summary:selecting optimum mixture ratio of granula grades,the gunning refractory is made from magnesia with many different additeves according to application.
Features:strong adhension,high temperature resistance,washout resistance and corrosion resistance are able to prolong the working life of furnace lining and decrease refractory consumption.
Usage:used for the lining patching of steel converter,opent hearth and electric are furnace.
Specifications;
Item |
High Grade |
Middle Grade |
MgO(%) |
86 |
80 |
Bulk density(g/cm3) |
2.4 |
2.3 |
Apparent porosity(%) |
27 |
28 |
Cold crushing strength(Mpa) |
6 |
5 |
Cold Modulus of rupture(110¡æ¡Á2h) Mpa |
2 |
1 |
Adhesion ratio(%) |
85-90 |
85-90 |
Durability(heats) |
8-15 |
8-10 |
Flowability |
No blockage |
No blockage |
|
|