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By certification 
Black silicon carbide is made of quartz sand, petroleum coke (or coal) and wood chips as raw materials through a resistance furnace with high temperature smelting. Of the non oxide high technology refractory materials such as C, N and B, silicon carbide is the most widely used and most economical kind of refractory material.
high density, macrocrystalline black silicon carbide
20000KVA silicon carbide smelting furnace
Application
1. Raw material to produce high grade refractory material.
2. Abrasives
3. Raw material for Engineering ceramics
4. Deoxidizer and heating agent to steel-making and iron foundry.
Refractory Grade Silicon Carbide
Chemical Composition
SiC: 98% min
F.C: 0.3%max
Fe2O3: 0.3%max
Grit: 0-1-3-5mm, 200F, 220F, 325F
Properties: High thermal conductivity; High chemical stability; High hot strength; Excellent
thermal shock resistance; Superior abrasion resistance.
Application: Bonded refractory products, refractory cement, electronic heating elements.
With high thermal conductivity, high chemical stability, excellent hot strength, superior thermal shock resistance and abrasion resistance, refractory grade silicon carbide can be widely used in bonded refractory products, refractory cement, and electronic heating elements.
We can supply different grade of Black SiC Powder for refractory materials in the quantity of 3,000 tons per month.
Inspection Equipment
Process Control
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Silicon Carbide Powders Micro
Silicon Carbide Micro Grits are produced by milling of selected and cleaned macro grain feedstock.
The milling and classification is done in CUMI’s state of the art milling and classifying facilities which yields powders of tight distribution, consistent shape, high purity and low dust levels. A safety screening of the powders is carried out to further ensure that the grains are free of coarse particles.
An in-line particle size analyzer coupled to a fully automated control system delivers a high level of repeatability of the process and yields a very predictable product. Particle size counters are used for testing and reporting size distributions and a shape analyzer helps in fine tuning the process to obtain shape specific products for various applications.
Major applications include
●Bonded abrasives
●Coated abrasives
●Super Finishing stones
●Lapping
●Silicon wafer slicing
●Brake Liners
●Diesel particulate filters
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