High Chrome Bricks Introduction
High chromium brick as a kind of hot-sales refractory bricks for furnace application in Rongsheng factory manufacturing with chemical industry, chemical industry kiln, alkali-free glass fiber kiln, key parts of waste incinerator,refractory high chrome brick is made of corundum and fused chromium oxide as the main raw materials, together with additives such as fine powder, which are kneaded, formed, dried and fired at a high temperature in a shuttle kiln.High chrome bricks have good properties of excellent thermal shock stability and high temperature creep performance.There are high quality high chrome bricks for sale cheap in RS Company can provide standard chrome brick size specification and category as well as competitive price & high-grade quality high chrome fire bricks products,other specification and size of high refractory chrome bricks according to customer requirements,welcome to contact us or email us for free quote or price list.
High Chrome Bricks Properties
1. Refractory Chrome Bricks have acid corrosion resistance.
2. Refractory Chrome Bricks have alkali corrosion resistance.
3. Refractory Chrome Bricks have thermal shock resistance.
4. Refractory Chrome Bricks have high temperature resistance.
5. Refractory Chrome Bricks have high temperature strength.
6. Refractory Chrome Bricks have excellent wear resistance.
7. Refractory Chrome Bricks have high temperature resistance.
8. Refractory Chrome Bricks have high temperature stability.
9. Refractory Chrome Bricks have excellent thermal shock resistance
High Chrome Bricks Specification
|
Item
|
RS-75 |
RS-85 |
RS-90 |
RS-95 |
Cr203 |
% |
75 |
85 |
90 |
95 |
Cr203+Al2o3+Zr203
|
% |
98 |
98 |
98 |
98 |
Sio2
|
% |
0.2 |
0.2 |
0.2 |
0.2 |
Fe2o3
|
% |
0.3 |
0.3 |
0.3 |
0.3 |
K2O+Na20
|
% |
0.2 |
0.2 |
0.2 |
0.2 |
Apparent Porosity |
% |
18 |
18 |
16 |
16 |
Bulk Density |
g/cm3 |
3.9 |
4.2 |
4.22 |
4.25 |
| Cold crushing Strength |
Mpa |
120 |
120 |
120 |
120 |
High Chrome Bricks Application
High chromium bricks are mainly used in the chemical chemical industry, chemical industry furnaces, alkali-free glass fiber furnaces, the key parts of waste incinerators. Water based slurry pressurized gasifier and other related reducing atmosphere industrial furnace working lining.
Rongsheng Factory Testing High Chrome Bricks
Improve Service Life of High Chrome Bricks
In order to effectively improve the physical properties of high chromium fire bricks at room temperature, high refractory chrome bricks can resist the erosion performance and prolong its service life in the coal-water slurry pressurized gasifier. Under the conditions of carbon sequestration, it is fired at 1350℃, 1540, and 1550 ℃ respectively. Compared with the calcined sample in air at 1700 ℃, Rongsheng factory studied the effect of the firing atmosphere on the bulk density, apparent porosity, normal temperature high pressure strength and resistance to slag penetration of high chromium bricks. The results show that with the increase of temperature, the apparent porosity of high chromium bricks decreases and the bulk density increases, while the 1450℃ carbon fired high chromium bricks have the highest normal temperature compressive strength, reaching 214Mpa; the carbon-buried performance significantly reduces the high chromium refractory bricks. The firing temperature and the improvement of its remarkable structure; the slag penetration resistance of the high chromium fire bricks buried at 1450 ℃ is better than 1700 ℃.
Porosity refinement may be an important way to improve the anti-penetration ability of refractory high chromium bricks, which largely prevents or reduces the penetration of slag, thereby minimizing the structural spalling of high chromium bricks and effectively extending their service life.
Rongsheng Factory Testing High Chrome Bricks
1.High Chrome Bricks Temperature
In the influence of the firing temperature on the microstructure of high chromium bricks, Rongsheng used scanning electron microscopy to analyze the microscopy of high chromium bricks after firing at 170 0 ℃, 174 0 ℃, 1780 ℃, 182 0℃ and 186 0 ℃. The results show that the firing temperature of the high chrome brick is not as high as possible, but a suitable firing temperature of 174 0 ℃. The high chromium brick prepared at the firing temperature has a moderate grain size of Cr2O3 in the matrix, a dense matrix structure, a tight bond between the matrix and the particles, no crack, and the best mechanical properties.
2.Effect of Iron Oxide Content on High Chromium Brick
When the content of iron oxide in the coal slag is high, the ash fusion temperature of the coal slag is lowered, and the osmosis erosion of the refractory material is serious. Although a so-called composite spinel protective layer can be formed at the interface between the slag and the refractory material, the life of the refractory material is raising it will not have a significant effect, but will reduce high chrome refractory bricks service life.
High Chrome Bricks Package
Fireproof chome bricks package is general export package-general fumigation wooden pallet , paper corner protector, plastic-steel belt and plastic shrink film protected outside, neutral package or as client's requirements.
Where to Buy High Chrome Bricks - RS Factory
RongSheng refractory factory has been engaged in refractory material industry for more than 20 years.RS refractory have a excellent technological team and have the professional sales team.
Rongsheng firebricks manufacturer can provide specification and category as well as competitive price & high-grade quality bricks products.Rongsheng firebricks factory can provide refractory high chrome bricks density, standard chrome brick size according to client requirements.
