Sillimanite Bricks Introduction
Sillimanite brick is a natural high-grade refractory mineral with low thermal expansion rate, resistance to metallurgical slag and various glass liquids, and high temperature wear resistance. Sillimanite firebricks physical and chemical properties are better than high alumina bricks, the refractoriness is 1770 ~ 1830 ° C, and the load softening starting point is 1500 ~ 1650 °C. Sillimanite fire bricks are mainly used for the forming of liquid hole in glass tank kiln, blast furnace lining, furnace throat and ceramic industry kiln furniture. The sillimanite refractories material bricks based on natural sillimanite also have these advantages. Therefore, sillimanite refractories bricks are widely used in metallurgy, chemical and building materials industries.
Catalogue
※Sillimanite Bricks Advantage
1.Low thermal expansion rate
2.Resistance to metallurgical slag and various glass liquids
3.High temperature wear resistance
4.High structural strength
5.Low temperature creeping
6.Good thermal shock resistance
※Sillimanite Bricks Maufacturing Progress
1.Select Qualified Raw Materials
The production of grouting products first selects qualified refractory raw materials , at the same time, according to the shape of the product, a gypsum mold is prepared, and a binder (electrolyte) is prepared, and then prepare the mud required for injection molding.
2.Casting of Mud
The qualified mud is slowly injected into the mold. After the filling, the mud is flattened, the gypsum board (upper formwork) is covered, and then the mold is released. The demolding time is determined according to the thickness of the blank, and the blank is formed after the inside and outside. To repair the light, that is, to repair the blank.
3. Forming Shape
The formed semi-finished products should be dried to a certain amount of moisture, and then kiln and high temperature fired into finished products, processed in the neck, processed, and shipped.
※Specification of Sillimanite Bricks
| Item |
SB-60 |
SB-65 |
| Al2O3(%)≥ |
60 |
65 |
| Bulk Density(g/cm3) |
2.45~2.65 |
2.55~2.70 |
| Apparent Porosity(%)≤ |
19 |
20 |
| Cold Crushing Strength(Mpa) ≥ |
50 |
60 |
| 0.2Mpa Refractoriness Under Load(℃)≥ |
1600 |
1650 |
| (0.2Mpa,20-50th,%)Creep rate |
0.2
1400℃ |
0.2
1450℃ |
| ThermalShockResistance(1000℃,water quenching,cycle)≥ |
20 |
25 |
(1450℃*3h)%
Permanent Linear Change on beating |
0~0.1
1450℃ |
0~0.1
1450℃ |
※Sillimanite Bricks Application
Silica refractory bricks are widely used in metallurgy, chemical and building materials industries.
1.Sillimanite high temperature bricks is applied to the material channel and cover plate of blast furnace, hot air furnace duct, lime kiln and glass kiln.
2.Sillimanite heat resistant bricks mainly used for forming glass tank kiln fluid hole, blast furnace lining, furnace throat and ceramic industry kiln furniture
3.Sillimanite fire bricks are suitable for equipments such as feed channels, feeders, and pipe pullers in the glass industry, which can significantly increase productivity. The products include refractory material bricks, flow trough, rotating pipe, material basin, material bowl, mixing slurry, punch, barrel, fire blocking slag brick, gate brick, front arch brick, rear arch brick, material basin cover, and port. Bricks, burner bricks, beams, cover bricks and other varieties and specifications.
※Sillimanite Bricks Supplier
We can provide our customers with professional and personalized sillimanite bricks products and engineering services according to the actual working condition and requirements of each customer, in order to meet customers’ increasing demand of energy-saving and products quality improving, provide a competition sillimanite bricks market price. We will be your loyal partner，provide the best quality pre-sales and after-sales service.
