• Green and Black Silicon Carbide with High Purity SiC Supplied by CNBM System 1
  • Green and Black Silicon Carbide with High Purity SiC Supplied by CNBM System 2
Green and Black Silicon Carbide with High Purity SiC Supplied by CNBM

Green and Black Silicon Carbide with High Purity SiC Supplied by CNBM

Ref Price:
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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
2000 m.t./month

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Packaging & Delivery

Packaging Details:1) 25kg woven bag,40 woven bags/jumbo bag. 
2) 25kg woven bag,40 woven bags/pallet 
3) 25kg paper bag,40 paper bags/pallet 
4) 25kg paper bag,40 paper bags/paper box
Delivery Detail:10DAYS AFTER CONFIRMATION ORDER

Specifications

F220 High purity SiC 
Professional manufacturer 
Passed REACH ,ISO-9001:2008

We provide the best quality C in china with high tech testing instrument gurantee the quality.

 

 

Grinding Black Silicon Carbide

 

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials.  It is used for making bonded and coated abrasive tools, grinding metal and non-metal materials of lower tensile strength, such as gray cast iron yellow bronze,aluminum, stone, leather, rubber, etc. 

Chemical Compsition (%)

 

Grit

Sic

F.C.

Fe2O3

F12-F90

≥98.50

<0.20< span="">

≤0.60

F100-F150

≥98.00

<0.30< span="">

≤0.80

F180-F220

≥97.00

<0.30< span="">

≤1.20

F230-F400

≥96.00

<0.40< span="">

≤1.20

F500-F800

≥95.00

<0.40< span="">

≤1.20

F1000-F1200

≥93.00

<0.50< span="">

≤1.20

P12-P90

≥98.50

<0.20< span="">

≤0.60

P100-P150

≥98.00

<0.30< span="">

≤0.80

P180-P220

≥97.00

<0.30< span="">

≤1.20

P230-P500

≥96.00

<0.40< span="">

≤1.20

P600-P1500

≥95.00

<0.40< span="">

≤1.20

P2000-P2500

≥93.00

<0.50< span="">

≤1.20

 

Physical Index

 

Grits

Bulk Density
g/cm3

High Density
g/cm3

Grits

Bulk Density
g/cm3

High Density
g/cm3

F16 ~ F24

1.42~1.50

≥1.50

F100

1.36~1.45

≥1.45

F30 ~ F40

1.42~1.50

≥1.50

F120

1.34~1.43

≥1.43

F46 ~ F54

1.43~1.51

≥1.51

F150

1.32~1.41

≥1.41

F60 ~ F70

1.40~1.48

≥1.48

F180

1.31~1.40

≥1.40

F80

1.38~1.46

≥1.46

F220

1.31~1.40

≥1.40

F90

1.38~1.45

≥1.45




 

Size Available

 

F12-F1200,P12-P2500

0-1mm,1-3mm,6/10, 10/18, ,200mesh,325mesh

Other special spec. could be supplied as required.

Green and Black Silicon Carbide with High Purity SiC Supplied by CNBM


Q:What are unshaped fire-resisitance materials?
Refractory castable, refractory plastic material, usually classified according to construction and manufacture method, unfired bricks precast block, refractory pressed into material, refractory cast material, refractory coating, refractory ramming material there are many classification methods
Q:What are the fireproofing materials of the external wall included?
According to the external wall thermal insulation materials, the external insulation materials is in general divided into Class A and Class B. The A class is non-combustible material. The B class is combustible materials. The fire disasters of the CCTV building and Shenyang hotel are both caused by the B level materials. Generally, the A level material will be used, and some prices are even cheaper than the B-grade material. A level is roughly divided into thermal?mortar, phenolic foam Board, rock wool board, foam cement board, and so on. I hope my answer will help you!
Q:What are the specifications of refractory kilns ?
Since the coefficient of thermal expansion of the basic brick is large, expansion rate is about 1-1.2% under 1000 ℃ The literature indicates that: "Under the condition that the temperature was raised to 1000 ℃ and stress in brick lining is relaxed, 300N / mm2 of compressive stress can be produced, which is equals to ten times structural strength of ordinary magnesia chrome brick, six times structural strength of magnesia chrome brick, dolomite brick and spinel brick, so any basic bricks can not afford, " the paper also pointed out that " heat expansion rate of kiln body can partially compensate for expansion rate of the inner lining of 0.2% -0.4%, which is 1/3 of thermal expansion rate of ordinary magnesia-chrome brick under 1000 ℃. However, it occurs under thermal equilibrium conditions. Thereby, the kiln should be dried slowly, allowing the temperature of the kiln body to go up slowly, thus the role of compensation can be played. " This is the key to using the basic brick. " Procedures of refractory for cement kiln "( tentative one) has clearly regulated baking and cooling of the kiln in the first section of the fifth chapters. In the heating process, in particular when the temperature is in the range of 300-1000 ℃, heating rate must be less than 60 ℃ / h. This is very clear in theory but it is difficult to implement.
Q:What's the refractory material?
Main components of basic refractory are magnesium oxide and calcium oxide, and magnesia brick is commonly used. For the magnesia brick with magnesium oxide content of more than 80%-85%, it has good resistance to basic slag and scum, and it has higher refractoriness than that of the clay brick and silica?brick. It is mainly applied to the open hearth furnace, oxygen-blown converter, electric furnace, non-ferrous metal smelting equipment and some high-temperature devices.
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:What are the differences between thermal?insulation?material and refractory?
Just as its name implies, Thermal insulation means that it doesn't conduct heat instead it insulates heat inside, while refractory means resistance to high temperature and it will not be out of shape or damaged due to high temperature.
Q:What is the main constituent of refractory brick?
There are several refractory bricks, including clay brick, carborundum brick and chromium-carbon. The type you said may be refractory bricks made from bauxite.
Q:What can red stone refractory do?
In severe cases, the resistance to high temperature without softening down the Celsius temperature. 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. Chinese use less impurity clay in more than 4000 years ago, firing pottery, and have been able to cast bronze. In the Eastern Han Dynasty (AD 25 ~ 220) have been used to make clay refractory kiln firing porcelain material and sagger. At the beginning of twentieth Century, the development of refractories to high purity, high density and ultra high temperature products, while developing completely without firing, small consumption of unshaped refractory materials and high refractory fiber (160 for industrial furnace refractories above 0 DEG C). The former, such as alumina refractory concrete, is often used in large chemical plants, ammonia synthesis plant, two - stage reformer furnace wall, the effect is good. Since 50s, the rapid development of atomic energy and space technology, the development of new energy technology, requires the use of special refractory material of high temperature resistance, corrosion resistance, thermal shock resistance, erosion has excellent properties, such as melting point above 2000 DEG C, oxide refractory compounds and high temperature composite refractory materials.
Q:What are included in fireproofing materials?
There are many types of fireproof materials, and the following listed below is the main species: All kinds of fire retardant coating such as finishing fire retardant paint, fire retardant coating components, fire-resistant coating for steel structure; all kinds of fire-proof materials such as fire?retardant material and its products, textile, fire?retardant fabric, building materials and products, flooring material and external wall thermal insulation system; all kinds of fireproofing components such as fireproof?panel, fire door, fire resistant window frame, fire resisting shutter, fireproofing glass, elevator landing door,ventilating duct, fire-proof?sealing?material and fire protection smoke exhaust fan. The main indicators to judge fire resistance are: Flame retardency, ignition,production of?toxic?gases, smoke density,heat release and exhaust gas; fire resistance, combustion performance, heat of combustion, fire-resistant performance, high temperature resistance, fire?rating, etc. There are some specific parameters which need to be judged by a professional testing equipment. You can go to the inorganic laboratory to check. The test results of fire rating are accurate.
Q:What is the type of heat resistance property of high temperature electric furnace ?
According to the levels of refractoriness : Common refractories: & Gt: 1580 ℃ ~ 1770 ℃ advanced refractories: 1770 ℃ ~ 2000 ℃ AAA refractories; 2000 ℃

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