85AL2O3 High Alumina Stopper Brick for Iron and Steel Industry
The Description:
The plug brick is a refractory brick located at the bottom of the plug rod and closely matched with the water outlet brick. The plug brick is the core component of the plug system, which is composed of the refractory plug brick body and the steel argon blowing rod core inside the plug head. The types of the original plug head brick and the problems in actual use are divided into two kinds according to the connection mode between the plug head brick and the plug rod part: one is the plug head brick with pin connection; One is threaded plug head brick.
The Physical and Chemcial Index of 85AL2O3 High Alumina Stopper Brick for Iron and Steel Industry
| Items |
DL-80 |
DL-75 |
BDL-80 |
BRL-75 |
BRL-83 |
BRL-85 |
| Al2O3 % ≥ |
80 |
75 |
80 |
75 |
83 |
85 |
| Fe2O3 % ≤ |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
1.5 |
| Apparent porosity % ≤ |
19 |
19 |
18 |
18 |
17 |
17 |
| B.D g/cm3 ≥ |
2.7 |
2.6 |
2.8 |
2.7 |
2.9 |
2.9 |
| CCS Mpa |
70 |
60 |
60 |
55 |
70 |
80 |
| RUL ºC ≥ |
1540 |
1520 |
1550 |
1530 |
1550 |
1560 |
| % P.L.C 1550ºC×2h |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
±0.2 |
Application:
Pyroxite, graphite and high purity carbon powder were used as raw materials, 811 resin with solid content >70% was used as bonding agent, and St powder was used as antioxidant. It can be used to make blast furnace refractory. When not pouring, it blocks the water orifice to ensure no steel leakage. When pouring, the stopper rod is raised to create a gap between the stopper brick and the nozzle brick, and the molten steel flows out from the nozzle. Control the height of the stopper and adjust the outflow of molten steel. The plug brick and rod core can be fixed with thread or pin. The plug bricks may be clay, non-alumina and tar-impregnated non-alumina bricks.
Company main products and profiles:
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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