High Alumina Insulation Refractory Brick for Tunnel Kiln
The Description:
High alumina insulating refractory brick refers to the thermal insulation refractory products made of bauxite with Al2O3 content of not less than 48%. High aluminum thermal insulation refractory brick, mainly using bauxite clinker, combined with clay as raw materials, adding binder and sawdust, in order to improve product performance, add industrial alumina, corundum, sillimanite, kyanite, silica fine powder, can be prepared volume density of 0.4g/cm3 or more products. Al2O3 content and bulk density are different, the highest use temperature is different, usually in 1250-1350 ° C, and some can reach 1550 ° C.
Physical and Chemcial Index of High Alumina Insulation Refractory Brick for Tunnel Kiln
| Item |
KY-JM23 |
KY-JM26 |
KY-JM28-1 |
KY-JM28-2 |
KY-JM30 |
| Service temperature ºC |
1260 |
1430 |
1540 |
1540 |
1650 |
| B.D g/cm3 ≥ |
0.5 |
0.8 |
0.9 |
0.95 |
1.05 |
| MOR Mpa ≥ |
0.7 |
1.1 |
1.5 |
1.6 |
2 |
| CCS ºC ≥ |
1.0 |
2.0 |
2.2 |
2.3 |
2.7 |
| PLC% |
0.3 |
0.4 |
0.5 |
0.5 |
-- |
| |
ºC*8h |
1230 |
1400 |
1510 |
1510 |
| Thermal expansion%≤ |
|
0.6 |
0.7 |
0.8 |
0.8 |
0.9 |
| Thermal conductivity |
400 ºC |
0.15 |
0.28 |
0.32 |
0.33 |
-- |
| |
600 ºC |
0.17 |
0.31 |
0.34 |
0.36 |
-- |
| |
800 ºC |
0.19 |
0.33 |
0.36 |
0.39 |
-- |
| |
1000 ºC |
0.24 |
0.35 |
0.39 |
0.42 |
-- |
| Al2O3 % ≥ |
|
37 |
50 |
60 |
60 |
68 |
| Fe2O3 ≤ |
1.0 |
1.0 |
0.7 |
0.7 |
0.5 |
| SiO2 ≤ |
55 |
43 |
36 |
36 |
29 |
Product feature:
High Alumina Insulation Refractory Brick for Tunnel Kiln Low iron content and low temperature smelt of alkali metal,Good refractoriness and good affection of reducing atmosphere resistance.The product is featured with even structure,light weight,high CCS and good insulation resistance,so the furnace body has less heat storage during cooling and energy can be saved effectively .At high temperature,the product is characterized by high strength,stable volume and good thermal shock resistance.After product being sintered,it will be ground resulting in small size tolerance and can meet the requirements of construction.
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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