Casting Zirconium Mullite Refractroy Brick
The Description:
Zirconium mullite brick is a fused cast refractory product with mullite and zirconia as raw materials. Zirconium mullite cast brick has dense crystal structure, high softening temperature under load, good thermal stability, high mechanical strength at room temperature and high temperature, good wear resistance, good thermal conductivity, and excellent resistance to erosion.Sintered zirconium mullite brick is a high-grade refractory brick made of industrial alumina and zirconite concentrate as raw materials, and ZrO2 is introduced into the mullite matrix through the reaction sintering process. The reaction equation is as follows: 3A12O3 ten 2ZrSiO4→3 A12O3·2SiO2+2ZrO2 Mullite ceramics have many excellent characteristics, such as high temperature resistance, thermal shock resistance, high temperature creep resistance and good chemical stability.
Physical and chemcial index of Casting Zirconium Mullite Refractroy Brick
| Item Brand |
Unit |
CZM-20 |
| Al2O3 ≥ |
% |
72 |
| ZrO2 ≥ |
% |
19 |
| SiO2 ≤ |
% |
7 |
| Fe2O3 ≤ |
% |
0.2 |
| Bulk Density ≥ |
g/cm3 |
3.25 |
| Apparent porosity % ≤ |
% |
17 |
| Cold crushing strength ≥ |
Mpa |
100 |
| Thermal expansion%≤ |
% |
0.9 |
| Refractoriness under load ≥ |
ºC |
1700 |
Product feature:
Casting Zirconium Mullite Refractroy Brick is made of fused zircon-mullite and sinter alumina as main raw materials,hydrated alumina as binder,sintered by high temperure.The product are more dense,higher purity,corumdum phase is greater than 70%,baddeleyite content of more than 19%,mullite phase is more than 7%,the product has good thermal shock resistance,spalling,have strong corrosion resistance to glass liquid,and can be used for crown,port arch,hook brick,observation hole brick,burner brick,feeder bricks and dog-house crown and the area of serious erosion.It's recommeded to be the first choice for opal glass,and high borosilicate glass.
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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