99%AL2O3 Presssing Corundum Refractory Brick for Glass Furnace
The Description:
Corundum bricks are refractory products with alumina content greater than 90% and corundum as the main crystalline phase. High compressive strength at room temperature (up to 340MPa). High load softening initial temperature (greater than 1700ºC). Good chemical stability, strong resistance to acidic or alkaline slag, metal and liquid glass. The thermal shock stability is related to its structure. The corrosion resistance of dense products is good, but the thermal shock stability is poor.
Divided into sintered corundum brick and fused corundum brick two kinds. Sintered alumina and fused corundum can be used as raw materials, or alumina clinker with high Al2O3/SiO2 ratio can be combined with sintered alumina by sintering method. Non-burning corundum bricks can also be made with phosphoric acid or other bonding agents. Mainly used in ironmaking blast furnace and blast furnace hot blast furnace, steel furnace refining furnace, sliding water, glass melting furnace and petrochemical industry furnace.
The Physical and Chemcial Index of 99%AL2O3 Presssing Corundum Refractory Brick for Glass Furnace
| Item |
Unit |
CMC |
Corundum brick |
Chrome corundum brick |
Titanium corundum brick |
| C90 |
C95 |
C99 |
CC10 |
TC |
| Pressing |
Casting |
Pressing |
Casting |
Pressing |
Casting |
| Al2O3 % ≤ |
% |
85 |
90 |
90 |
95 |
95 |
99 |
99 |
86 |
94 |
| Fe2O3 ≤ |
% |
0.5 |
0.4 |
0.4 |
0.3 |
0.3 |
0.1 |
0.1 |
0.2 |
0.2 |
| Cr2O3 ≥ |
|
|
|
|
|
|
|
|
10 |
10 |
| Apparent porosity % ≤ |
% |
18 |
16 |
18 |
16 |
18 |
16 |
18 |
16 |
2 |
| BD |
g/cm3 |
2.8 |
3.1 |
3.05 |
3.15 |
3.1 |
3.2 |
3.15 |
3.3 |
3.6 |
| CCS |
Mpa |
60 |
100 |
90 |
100 |
90 |
100 |
90 |
200 |
300 |
| 0.2Mpa RUL ºC ≥ |
|
1650 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
1700 |
| PLC 1500ºC*2h |
ºC |
±0.1 |
±0.1 |
±0.1 |
±0.1 |
-- |
-- |
-- |
-- |
-- |
Product feature:
99%AL2O3 Presssing Corundum Refractory Brick for Glass Furnace is made from special grade of bauxite as main raw material,added with amount of white fused alumina and a alumina powder,shaped by high pressure and sintered at high temperature.The main mineral constituent includes mullite and corundum,with excellent high temperature physical performance and chemical erosion resistance.
Application:
Corundum brick has been widely used in high temperature, high pressure, chemical erosion and mechanical wear serious petrochemical thermal equipment as the lining material, with the progress of petrochemical industry production technology, the production of a lot of new processes and new technologies, in order to make the equipment to achieve large load, long cycle, low energy consumption, low cost purposes. In addition to the transformation of various thermal equipment, higher requirements are also put forward for the lining materials of various thermal equipment. To this end, a series of chrome-corundum products with better resistance to high temperature and erosion has been developed to meet the needs of the petrochemical industry
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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