Chromic Oxide Refractory Blocks for Non Alkali Glass Fiber Furnace
The Description:
Chromium oxide brick is a corundum refractory brick containing Cr2O3. At high temperatures, Cr2O3 and Al2O3 form a continuous solid solution. Therefore, the high temperature performance of chrome corundum brick is better than that of pure corundum brick. Chrome corundum bricks used in petrochemical industry gasifiers should be low silicon, low iron, low alkali, high purity, but also have a high density and strength. The content of Cr2O3 is mostly in the range of 9% ~ 15% for chrome corundum bricks used more frequently.
The Physical and Chemical Index of Grain Chromic Oxide Refractory Blocks Chromic Refractory Brick
| Item |
Dense chromic oxide blocks |
Grain chromic oxide blocks |
Bubble ZrO2 Brick |
| ZCR-94 |
GCR-92 |
GCR-94 |
CRAZ-60 |
CRAZ-30 |
| Cr2O3 ≥ |
94 |
92 |
94 |
60 |
30 |
15 |
| TiO % |
4 |
4 |
4 |
--- |
--- |
--- |
| ZrO2 ≤ |
--- |
--- |
--- |
12 |
4 |
4 |
| Al2O3 ≤ |
--- |
--- |
--- |
12 |
4 |
4 |
| Apparent porosity % ≤ |
12 |
20 |
18 |
18 |
18 |
18 |
| Density kg/m3 |
4.5 |
4.12 |
4.2 |
3.75 |
3.3 |
3.2 |
| CCS Mpa |
200 |
100 |
130 |
120 |
100 |
100 |
| RUL ºC ≥ |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
Product feature:
Compared with pure corundum brick, it has better properties, such as refractoriness, load softening deformation temperature, bending strength, high temperature creep, high temperature volume stability and slag corrosion resistance.
The application:
The application of chromified brick on the steel groove of rolling heating furnace with large section billet, greater friction per unit area and high output can not only significantly extend the service life of the steel groove, reduce the shutdown time, increase the output, reduce the consumption of refractory materials and maintenance costs, but also improve the overall life of the furnace due to the reduction of the number of urgent cooling and urgent heating caused by the shutdown maintenance. It can obtain obvious economic benefits.
Company main products and profiles:
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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