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China Dragon Abrasives and Refractory Materials Industry
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 Model Number |
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Features:
1) FEPA standard, F type: grit size F12 - F1500
2) P type: grit size P24 - P2500
3) JIS standard: grit size #12 - #8000
Abrasives
1) Our silicon carbide abrasive grains are manufactured according to:
a) FEPA-specifications for bonded F8-F2000
b) FEPA-specifications for coated P12-P2500
2) JIS abrasive grain sizes: #8-#8000
3) The micro grains are available in both blocky and sharp shaped grains as
standard products
4) Typical applications are:
a) Grinding wheels
b) Honing stones and sticks
c) Grinding paper and cloth
d) Lapping and polishing powders
e) Wiresawing and polishing of granite and marble
Wiresawing:
Special micrograins developed in order to give true and smooth cuts with a minimum
on total thickness (TTV),wrap, bow, or surface damage for sawing of:
1) Silicon wafers for electronics
2) Silicon wafers for photovoltaics
3) Gallium arsenide
4) Quardz
5) Glass
6) Ferrite
7) Sapphire
8) Ceramics
Refractories
Chemical inertness at high temperature, high abrasion resistance, low coefficient of thermal expansion, high thermal shock resistance makes silicon carbide an attractive material for several refractory purposes such as:
1) Kiln furniture
2) Aluminum reduction cells
3) Incinerators
4) Bricks for blast furnaces and zinc furnaces
5) Crucibles
6) Monolithics
7) Taphole and runners in melting furnaces
Metallurgical
Metallurgical grade silicon carbide is used in foundries and in the steel industry in the forms of briquettes or loose grains:
1) As alloying elements, replacing the carbon/ferro-silicon combination
2) As a deoxidizing agent
3) As an inoculant
High performance ceramics
Very fine silicon carbide powders, well into the submicron ranges, are used as the key material in high performance ceramics such as:
1) Recrystallized silicon carbide (R-SiC)
2) Reaction bonded silicon carbide (SiSiC) and sintered silicon carbide (SSiC) for typical
3) Applications:
a) Diffusion components
b) Kiln furniture
c) Seal rings
d) Burner nozzles
e) Slurry pump housing and impellers
f) Incinerators
Chemical and physical properties
Silicon carbide is a synthetic material with an outstanding hardness, only superseded by diamond, B4N and B4C. The chemical inertness to most of the alkaline and acids in combination with its excellent heat and abrasion resistance make silicon carbide very suitable under extreme operation conditions.
Specifications:
1) Vickers hardness: 30 GPA
2) Thermal expansion: 5 x 10-6/0K
3) Thermal conductivity: 41W/m 0K
4) Specific gravity: 3.21g/ccm
Any inquries from you will be highly appreciated.
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