• High Alumina Brick - Silicon Nitride Bonded Silicon Carbide Products for Steel Industry System 1
High Alumina Brick - Silicon Nitride Bonded Silicon Carbide Products for Steel Industry

High Alumina Brick - Silicon Nitride Bonded Silicon Carbide Products for Steel Industry

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
5 m.t.
Supply Capability:
500 m.t./month

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Use: blast furnace bosh, bosh, lower stack, cooling wall, garbage incineration furnace, boiler 

Features: good thermal shock resistance, high bending strength, abrasion resistance, high alkali resistance and slag erosion ability, linear expansion rate low, high coefficient of heat conductivity.

Product name
 
Silicon nitride bonded silicon carbide products 
 

Chemical

composition(%)
  SiC
 ≥72.0
 
Si3N4
 ≥22.0
 
Fe2O3
 ≤0.3
 

              Display the porosity(%)  
 ≤16.0
 

             The volume density(g/cm3)  
 ≥2.68
 

   Compressive strength at room temperature (Mpa)
 ≥180.0
 

Flexural strength

(Mpa)  
 Normal atmospherictemperature
 ≥45.0
 
1400℃
 ≥55.0
 

Thermal conductivity

λ(W/m·K)
 
The experimental temperature

650℃
 19.5
 

The experimental temperature

1000℃
 17.2
 

Coefficient of temperature conductivity

α(cm2/s) 
 
The experimental temperature

650℃
 0.064
 

The experimental temperature

1000℃
 0.053
 

Linear expansion rate
 α30—1000
 4.02×10-6(k-1)
 
α30—1100
 4.06×10-6(k-1)
 

Q: Is there a big difference between two high alumina brick and one high alumina brick?
The difference between the two kinds of high alumina bricks is great. I perennial in Zhengzhou was responsible for the production and sale of colt refractories
Q: What is the difference between corundum and high alumina??
The main components of high alumina brick are high alumina bauxite, mullite and partial corundum sand.
Q: What refractory material does cupola lining use?
Materials defined as physical and chemical properties that allow them to be used in a high temperature environment are called refractory materials. Refractory materials are widely used in metallurgy, chemical, petroleum, machinery manufacturing, silicate, power and other industrial fields, the largest amount of metallurgical industry, accounting for 50% ~ 60% of the total output.
Q: What is the standard size of high alumina brick?
Standard brick: 230 x 115 x 65; four points: 230 x 115 x 40; three points: 230 x 115 x 30; 150 x 120: Brick gable. Light weight brick 1 to 1.7 kilograms; heavy clay superscript brick weighs 3.75 kilograms; light 30 plates 0.79 kilograms; light 40 plates, 1.05 kilograms.
Q: How many cubic bricks does a high alumina brick have?
It is related to the content of aluminum in high alumina bricks.
Q: What are the alloy wear resistance materials?
KNMn19Cr2 (patent) high manganese alloy (ZGMn13Cr2MoRe), super high manganese alloy (ZGMn18Cr2MoRe); two: anti-wear chromium cast iron series: such as high, medium and low chromium alloy cast iron (Cr15MOZCu); three: wear resistant alloy steel series: such as, low and high carbon multi metal combined steel (such as ZG40SiMnCrMO and ZG35Cr2MoNiRe); four: ADI (ADI) series; five: all kinds of composite or gradient material and hard alloy materials, nano KN alloy (patent product): such as chromium carbide composite (Cr2C3+Q235), high-energy ion osmosized tungsten carbide materials (WCSP), high toughness of cemented carbide (YK25.6), KN999 nano alloy (Beijing Naimo patent) etc.;
Q: What are the requirements for refractory materials in heat treatment furnace?
Refractoriness is the property of a refractory against high temperature, which means the temperature at which a refractory is softened to some extent after heating, but not its melting point. According to the degree of refractory, refractory materials can be divided into: General refractories, refractory degree is 1580 to 1770 DEG C; advanced refractories, refractory degree is 1770 to 2000 DEG C; special refractory material, refractory degree is greater than 2000 DEG C.
Q: How to test the aluminium bricks of high alumina refractory bricks?
Forming high alumina brick will be tested on some professional equipment, it is suggested that you can go to the professional testing department to know about it!
Q: What kind of material is the general metal case?
We usually discuss the electromagnetic radiation of computer enclosures, mainly RF radiation, followed by MF leakage.Switch signal of RF radiation from computer high-speed leakage, such as one of the energy radiation is CPU frequency, graphics, display output line, keyboard, is the source of the operating characteristics of the computer leaked out, is also the main part of computer security.For the absorption of radio frequency radiation, the best is the use of copper materials, the use of other metals can also, thickness enough on the line.The most vulgar description is that people can sit in the case is a good thing.
Q: What is the difference between metal compounds and metal solid solutions?
Solid solution refers to the alloy phase in which the solute atoms are dissolved into the solvent lattice and remain solvent type. A crystalline substance consisting usually of atoms or molecules in which a chemical substance is dissolved as a base; other substances are found in alloys and silicate systems; also present in polyatomic substances. The mixture can be treated as a solution when the crystal structure of the solvent can be stabilized and homogeneous after addition of solute. Some mixtures can form solid solutions in many concentrations, while some mixtures do not form solid solutions at all.

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