Silicon Carbide For Abrasives and Refractory

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China main port
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Product Description:

Silicon Carbide For Abrasives and Refractory

1.Green, crystal structure, high hardness and strong cutting ability, stable chemical characteristics, good thermal conductivity.

2.Among abrasives, silicon carbide’s hardness is higher than corundum, and ranked below diamond, CBN and boron carbide. 

3.Density generally viewed is 3.20−3.25g/ mm3 , natural bulk density is 1.2−1.6g/ mm3 , specific gravity is 3.20˜3.25g/ mm3

 

Raw material are petroleum coke and quality silicon sand, appended with salt, then smelted in electric arc furnace. Mechanical strength is higher than corundum.  

Silicon Carbide For Abrasives and Refractory




 

Particle size comparison of commonly used abrasive:


Particle size distribution (micron)

Chemical composition

Physical composition

Size

D3

D50

D94

SiC ≥(%)

Fe2O3 ≤(%)

F•C ≤(%)

PH Value

Bulk Density

Magnetic Materials≤(%) 

GC#800

≤20.0

14.0±1.0

≥9.0

99.00

0.20 

0.2

6--8

1.18

0.008

GC#1000

≤18.3

11.5±1.0

≥7.0

98.50 

0.20 

0.2 

6--8

1.15

0.008

GC#1200

≤17.5

9.5±0.8

≥5.5

98.50

0.20 

0.2

6--8

1.13

0.005

GC#1500

≤14.5

8.0±0.6

≥4.5

98.00 

0.20 

0.2

6--8

1.12

0.005

GC#1800

≤13.5

7.0±0.6

≥4.2

98.00

0.20 

0.2

6--8

1.05

0.005

GC#2000

≤13.0

6.7±0.6 

≥4.0

98.00

0.20 

0.2

6--8

1.00

0.005

 Main applications: 

solar and semiconductor wafer wire sawing; crystal and ferrite polishing; ceramic and special steel precision polishing; bonded and coated abrasive tools; cutting and polishing; non−ferrous metal lapping such as glass, stone, agate and high−grade jewelry; high−grade refractory materials , engineering ceramic, heating elements and thermal elements. 

 

For wire-sawing of solar and semi-conductor

Usage:

Green silicon carbide is used for wire−sawing of monocrystal silicon, polocrystalline silicon, potassium arsenide, quartz crystal etc, it is the engineering processing material in solar photovoltaic industry, semi−conductor industry and piezoelectric crystal industry.

 

Feature:

1.high purity and large crystal silicon carbide ingots ensure the excellent cutting capability and stable physical condition.

2.Grains are isometric with sharp edge, which ensure the even self-sharpening capability as cutting material and minimum TTV of the products been cutted.

3.Particle size distribution is narrow and even.

4.High heat−resisting and refractoriness under load guarantee the small wire expansion in processing, suitable to all kinds of wire saw machine.

5.Grain surface possessed specially, micro−powder with clean surface and easily fit cutting fluid, such as polyethyleneglycol and so on. 


Company Information

 

Silicon Carbide For Abrasives and Refractory

Q1. Will the FREE SAMPLES be provided for buyers?

- YES. We will provided FREE SAMPLE about 1kg 

Q2. How about the express fee?

- Our company’s policy is the buyer pay for express fee.

Q3. Is there QUALITY REPORT for the products?

- YES. We provide quality report of our company or CIQ,SGS according to client‘s requirement

 


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Q:What's the feature of construction external wall fireproof and thermal inuslation matertial?
It has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Its heat conductivity coefficient at normal temperature is 0.018W / (K · m) . The thermal insulation property is three to eight times that of the traditional materials. And it is completely waterproof. [2] Thermal insulation lining has properties of low heat conductivity coefficient, low density, high flexibility, fireproof and waterproof. Light, generally about10-96kg / m3, 20kg / m3 or less is felt, 24-48kg / m3 is middle-hard plate, 48-96kg / m3 is hard plate, wherein 48kg / m³ can be used as ceiling, with softening point being 500 ° C , thermal insulation 300 ° C. It is widely used in the United States, k =0.9. Calcium silicate thermal insulation product is developed in 1970s in China. With high compressive strength, low heat conductivity coefficient, recycle and easily construction, it is widely used in the power system. In China, small workshop production were the most common, then four production lines were gradually introduced from America, including instant fiber forming, dry method punched felt, which are advanced and quality, temperature endurance up to 800-1250 ° C.
Q:Does the aluminum silicate fiber can be used outdoors? If not, what other refractories can be used outdoors?
Q:Development trend of refractory industry
In recent years, great changes have taken place in the world refractory industry. On the one hand, because of the improvement of technology and equipment and refractories own industrial users of technology progress, and refractory material consumption decreased year by year; in the past 20 years, the average annual consumption per ton of steel refractories decreased about 5 kg. The forecast for the next 5 years the average annual consumption per ton of refractory materials will drop to 0.5-1.0 kg range. The trend of globalization is obvious, and the competition is so fierce that the varieties of refractory materials are diversified, and the performance and quality are obviously improved. The service consciousness and ability of the refractory enterprises are strengthened for the users. Many lack of competitiveness, no modern enterprise management awareness of SMEs have been bankrupt, mergers and acquisitions surging. The production of refractories in developed countries is much higher than the cost of developing countries at the same time, due to more stringent environmental requirements, forcing them to produce only export high value-added products or technology, and bulk products, labor-intensive production shifted to developing countries. Because of its unique advantages of raw materials and labor cost advantages, there is no doubt that China will have more opportunities
Q:What problems should be paid attention to while using refractory materials under a controlled atmosphere?
Pay attention to the performance of the materials, and the use of non oxide materials!
Q:What are the materials of insulation firebricks?
The raw materials of firebricks, firebricks have various raw materials, and the composition of which can be divided into six categories: soil, stone, sand, mineral, powder and others. One of the raw materials, soil: bauxite, kaoline, clay, diatomite Another raw material, stone: fluorite, kyanite, andalusite, forsterite, vermiculite, mullite, pyrophyllite, chlorite, dolomite, sillimanite, magnesia-alumina spinel, and silica Another raw material, sand: clay sand, zircon sand, quartz sand, and magnesite Another raw materials, mineral: chromium mineral Another raw material, powder: aluminum powder, micro-silica powder, and silicon powder Another raw materials, others: asphalt, graphite, phenolic resin, perlite, cenosphere, sialon, corundum, silicon sulfate, silicon carbide, sodium silicate, silica sol, boron carbide, calcium aluminate cement, nitride material, haydite, aluminum oxide, alumina sol and zirconia, etc.
Q:What are the uses of refractory materials of glass furnace?
What are the uses of refractory materials of glass furnace? The refractory materials of glass furnace have a good corrosion resistance to steel slag, but are poor in thermal shock resistance, and the deformation temperature of loading at high temperature is low. Magnesite chrome bricks which are made of chrome ore and magnesia In different proportions have a good thermal shock resistance. They are mainly used as crown bricks of basic open-hearth furnace. The refractory materials of glass furnace are mainly applied to open-hearth furnace, oxygen-blown converter, electric furnace, non-ferrous metal smelting as well as some high-temperature thermal equipments, and they can be used for reaction tanks and liners of autoclave.
Q:What are the best refractory materials in 2,400 Celsius degree?
It is the purpose that decides what kind of materials you should use. What you have said is 2,400 Celsius degree, right? It is about the fire resistance of the material or the required temperature of it?
Q:What's the maximum temperature that the high-temperature resistant refractory ceramic fiber cotton can endure?
It depends on what material the ceramic fiber gasket uses. It’s usually referred to high temperature gasket made from ceramic fiber paper. It is generally classified into normalized form and high alumina type, of which the former can resist the maximum temperature of 1260℃ and its continuous use temperature is 1000℃, and the latter can be used for a long period at the temperature of 1200℃. Nichrome wire, stainless steel wire and glass fiber are reinforced. Ceramic fiber coating cloth and slag cloth, sintering ceramic fiber cloth and ceramic fiber fumigation cloth) Characteristics of the ceramic fiber cloth: It has high temperature resistance, low heat conductivity, thermal shock resistance, low thermal capacity; superior insulating property at high temperature, long service life; resistance to nonferrous metals like molten aluminum and zinc erosion; low and high temperature strength; innocuity with no adverse effect on the environment.
Q:How many refractories are there for boiler above 1200 ℃?
In addition to refractory brick, refractories include refractory concrete (refractory cement+aggregate), fire-resistant insulating layer (refractory cement+vermiculite powder or refractory cement + diatomaceous earth) and the like. Refractories often used are azs brick, corundum brick, direct-bonded magnesia-chrome bricks, carborundum brick, silicon nitride bonded silicon carbide brick, nitride, silicide, sulfide, boride, carbide and other nonoxide refractory materials, calcium oxide, chromium hemitrioxide, aluminium oxide, beryllia and other refractories. Thermal insulation refractory materials often used are diatomite product, asbestos product, insulation board,etc. Unshaped refractories often used are repairing mass, ramming mass, castable refractory, plastic refractory, refractory mortar, refractory gunning mix, sling refractory, refractory coating, lightweight refractory castables, stemming, etc.
Q:What is neutral refractory? Can refractory suppliers tell the main components of it?
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