Si3N4 Bonded Silicon Carbide Refractory Brick for Lining Non-Ferrous Metal Semlting
The Description:
Silicon carbide brick is a refractory material made of SiC as the main raw material. Mohs hardness 9. More stable for acidic slag. SiC 72% ~ 99%. It is divided into clay bonded, Si3N4 bonded, Sialon bonded, β-SiC bonded, Si2ON2 bonded and recrystallized silicon carbide bricks. Mainly used for non-ferrous metallurgy retort, casting aluminum mold, electric furnace lining and heat exchanger.
Refractory products made of silicon carbide as the main raw material. Silicon carbide content 72% ~ 99%. Generally, black silicon carbide (SiC content above 96%) is used as raw material, and the binder is added (or without the binder), which is prepared by the process of batching, mixing, molding and firing. The main crystalline phase is silicon carbide. The main varieties are oxide bonded silicon carbide brick, carbon bonded silicon carbide brick, nitride bonded silicon carbide brick, self-bonded silicon carbide brick, recrystallized silicon carbide brick and semi-silicon carbide brick. It has the characteristics of good wear resistance, good corrosion resistance, high temperature strength, good thermal shock stability, high thermal conductivity, small thermal expansion coefficient, etc. It is a high-performance refractory material.
The Physical and Chemical Index of Silicon Carbide Brick for Lining Non-ferrous Metal Semlting
| Item |
Oxide bond SIC brick |
Cor-silicon carbide brick |
Mullite-SiC brick |
High alumina SIC brick |
| SIC % ≤ |
90 |
70 |
65 |
20 |
| Al2O3 % |
--- |
--- |
20 |
55 |
| Density kg/m3 |
2.5 |
2.6 |
2.3 |
2.5 |
| Apparent porosity % ≤ |
17 |
22 |
20 |
20 |
| CCS Mpa |
100 |
100 |
80 |
80 |
| RUL ºC ≥ |
1650 |
1700 |
1600 |
1600 |
Application:
Silicon carbide brick has high thermal conductivity, good wear resistance, thermal shock resistance and corrosion resistance. Therefore, silicon carbide bricks are widely used in industrial fields. It can be used in the lining of metallurgical steel cylinder, water mouth, plug head, furnace bottom and furnace belly, heating furnace without water cooling slide; Non-ferrous metal smelting distiller, rectification tower tray, electrolytic cell side wall, melting metal crucible; Silicate industrial kiln shed and flame insulation materials; Oil and gas generators and organic waste combustion furnaces in the chemical industry; High-tech ceramic kiln wares aluminum electrolytic cell lining, molten aluminum conduit and ceramic kiln wares, large and medium-sized blast furnace body, furnace waist and furnace belly, aluminum refining furnace lining, zinc distillation tank lining, etc
Company main products and profile:
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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