Description
1.Product Description
Corase emery powder ,black silicon carbide abrasive is the hardest
blasting media available. High-quality silicon carbide media is
manufactured to a blocky grain shape that splinters. The resulting
silicon carbide abrasives have sharp edges for blasting. Silicon
carbide has a very fast cutting speed and can be recycled and
reused many more times than sand. The hardness of silicon carbide
allows for much shorter blast times relative to softer blast
media.
2.Chemical & Physical Properties
Crystal Form,Alpha SiC hexagonal system
Chemical nature,Slight acid
Reaction with acids,Very slight surface action with hydrofluoric
acid
Reaction with Alkalis,Attacked at high temperature by alkalis and
iron oxide
Oxidation-reduction effects ,Starts to oxide slowly at **0oC. No
reduction
True Density (g/cm3) 3.*0
Hardness Knoop(kg/cm2) ********0
Moh's 9.5
Color Black
Color after firing Black
Decomposition point ***0 Degrees Celsius
3.Corase emery powder
SiC content=*9.*0%
F.C content=0.*0%
Fe2O3 content=0.*0%
4. Advantages
1. Large melting furnace, longer melting time, lead to more
crystallization, bigger crystals, higher purity and less
impurities.
2. Good hardness, longer life.
3. Chemical washed and water washed, good cleanness.
4. Special treated products get higher purity, better toughness,
and better grinding effect.
