Anti-strip Low Porosity Fireclay Refractory Brick
The Description:
Low porosity clay brick is the product of low porosity, high density than ordinary clay brick is more resistant to high temperature more permeability, corrosion resistance and other capabilities. Let us give you a detailed introduction to the performance and use of low porosity clay bricks.
Low porosity clay brick is mainly in the ordinary clay brick raw materials to add coke precious stone as the main raw material, adding sillimanite, andalusite in accordance with the proportion of the equipment and add the binder, binder after mixing, molding, drying and kiln firing of low porosity clay products, porosity is less than 17%.
Selecting the raw materials with high density and low water absorption and reasonable grading are the key to making clay bricks with low porosity. The temperature of the tunnel kiln for firing clay bricks is generally controlled at 1350ºC ~ 1380ºC, and the firing temperature of low-porosity clay bricks is appropriately increased (1420ºC), and the shrinkage of clay bricks is slightly increased, so that the density of refractory bricks is slightly increased and the low porosity is reduced.
Physical and Chemcial Index of Anti-strip Low Porosity Fireclay 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 |
-- |
-- |
-- |
-- |
-- |
-- |
Advantages of low porosity clay brick:
1, Strong erosion resistance;
2, Low porosity, high density;
3, High mechanical strength;
4, Strong permeability resistance;
5, High strength, high refractoriness;
6, Dense tissue;
7, Good thermal shock stability, anti-spalling
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
){kind=link}
){kind=link}