High Alumina -spinel Refractory Castable by Good Erosion Resistance for Ladle
The Description:
Spinel castable is a kind of refractory material applied in high temperature and high pressure environment, it uses spinel melt as an additive, can reduce the moisture and gas composition of castable, so that it has better high temperature resistance and stability. The spinel treatment method is to integrate spinel into the castable by adding high melting point substances or other processes, improve its performance and service life, and have better operability and economy.
The Technical Index of High Alumina -spinel Refractory Castable by Good Erosion Resistance for Ladle
| Items |
GBJ-90 |
GBJ-85 |
GBJ-80 |
GBJ-75 |
| Chemcial composition% ≥ |
AL2O3 |
90 |
85 |
80 |
75 |
| MgO |
3-5 |
6-8 |
8-10 |
8-10 |
| Bulk Density g/cm3 ≥ |
110ºC*24h |
3.15 |
3.0 |
2.9 |
2.85 |
| 1000ºC*3h |
3.1 |
3.0 |
2.9 |
2.85 |
| 1550ºC*3h |
3.0 |
2.95 |
2.8 |
2.8 |
| Permanent linear change% |
110ºC*24h |
0- -0.1 |
0- -0.1 |
0- -0.1 |
0- -0.1 |
| 1000ºC*3h |
-0.1-+0.1 |
-0.1-+0.1 |
-0.1-+0.1 |
-0.1-+0.1 |
| 1550ºC*3h |
0-0.5 |
0-0.5 |
0-1.5 |
0-1.5 |
| CCS Mpa ≥ |
110ºC*24h |
35 |
30 |
45 |
40 |
| 1000ºC*3h |
45 |
40 |
60 |
55 |
| 1550ºC*3h |
85 |
80 |
60 |
55 |
| MOR Mpa ≥ |
110ºC*24h |
5.0 |
4.0 |
7.0 |
6.0 |
| 1000ºC*3h |
6.0 |
6.0 |
6.0 |
5.5 |
| 1550ºC*3h |
8.0 |
8.0 |
9.0 |
8.0 |
Application:
Aluminum-magnesium spinel castable is mainly used in metallurgy, power, nonferrous, petrochemical, building materials and other industries. Such as the bottom of the glass kiln, the front end of the cooling machine before and after the cement kiln door cover and other high-temperature resistant parts, the front and rear kiln mouth, coal injection pipe, etc.; Heating furnace, soaking furnace and other heat treatment furnace; Medium frequency induction furnace lining, high temperature wear-resistant lining of petrochemical catalytic cracking reactor, other industrial furnace lining. The construction method of pouring, smearing and ramming can be used on site.
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
Certificates
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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