Professional Manufacturer Lower Porosity Clay Refractory Brick for Steel Industry
The Description:
Low porosity clay brick and dense clay brick is the same product, in fact, low porosity brick is also called dense clay brick, mainly in the production of focusing on the porosity and production, control the size of the porosity, is to add different proportions of coke gems to adjust the porosity of clay brick, and thus to increase the density of clay brick, so that its density is good, better compressive strength.
The general clay brick and low-porosity brick press process, the sintering temperature is basically the same, but the process ratio has changed, the low-porosity brick process adds a certain ratio of burnt gems, and the ordinary clay brick is not added to the burnt gems and produced. The clay brick after adding coke gem is a low-porosity brick, also known as dense clay brick, because of its low porosity, good strength and stronger erosion resistance. The amount of kiln lining used in the glass industry is relatively large.
Physical and Chemcial Index of Professional Lower Porosity Clay Refractory Brick
| Item |
Unit |
Three low clay brick |
Lower porosity |
Clay brick |
Anti-strip caly brick |
| DDD |
DN-14 |
DN-17 |
ZN-45 |
ZN-40 |
ZN-36 |
KN |
| Al2O3 % ≤ |
% |
46 |
45 |
42 |
45 |
40 |
36 |
44 |
| Fe2O3 ≤ |
% |
1.2 |
1.5 |
1.8 |
-- |
-- |
-- |
1.6 |
| Apparent porosity % ≤ |
% |
11 |
14 |
17 |
16 |
19 |
22 |
18 |
| BD |
g/cm3 |
2.4 |
2.34 |
2.26 |
2.3 |
2.2 |
2.1 |
2.32 |
| CCS |
Mpa |
80 |
65 |
50 |
50 |
35 |
30 |
50 |
| PLC 1400ºC*2h |
|
-- |
+0.1--0.2 |
+0.1--0.2 |
+0.1--0.2 |
+0.1--0.3 |
+0.1--0.4 |
+0.1--0.3 |
| 0.2Mpa RUL ºC ≥ |
ºC |
1520 |
1470 |
1430 |
1430 |
1380 |
1350 |
1450 |
| Creep rate 0.2Mpa 1200ºC*50h% |
% |
0.1 |
-- |
-- |
-- |
-- |
-- |
-- |
Application:
Low porosity clay bricks have 10%, 12%, 15%, 16%, 18%, 20%, 22%, the lower the porosity, the more difficult to do, the higher the price. For example, in the use of glass kiln lining, the ratio of 15-20% is more, and in some rotary kilns, 10-12% is more, if used in iron cans, the porosity is more than 20-22%.
The Feature:
Low porosity clay bricks, and other refractory brick production process, nothing more than high pressure molding, high temperature sintering, its fatigue resistance is far more than clay bricks, and the price is much higher than clay bricks. Especially in the acidic atmosphere, because of its low porosity, strong density, the matrix part is not easy to penetrate, and the use cycle is longer.
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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