Introduction white corundum:
The raw material of white corundum is AL2O3. The production process is that after the alumina is smelted into a block in a high temperature furnace by a high temperature, it is broken into small pieces by a jaw crusher, and then crushed by a ball mill for secondary crushing, magnetically removed and then sieved into various models. The micropowder needs to be pickled and removed.
White corundum has high purity, good self-sharpness, low calorific value, strong grinding ability, and good corrosion resistance. It has higher hardness than brown corundum, but it has no toughness of brown corundum.
White corundum characteristics:
1. High alumina content and high hardness
2. self-sharpening, acid and alkali corrosion resistance
3. high temperature resistance, stable thermal performance,
4. Strong grinding ability, low heat generation and high efficiency.
Chemical Composition
AL2O3 99.2-9 9.7;
Fe2O3 0.03-0.1;
Na2O 0.23-0.32;
SiO2 0.03
Main Physical Properties
Mohs hardness:9
Bulk density:1.75-1.95g/cm3
Real density:3.95
Melting point:2250
Application
1. Surface processing of auto parts manufacturing plants, stone factories, glass factories, glasses factories, electronics factories, etc.
2. Atomizing aesthetic processing of glass or acrylic art;
3. Fine grinding and polishing of the workpiece
4. Matting or matte treatment of gold, precious metal products, mobile phones, flat panels, etc.
5. Application of stress removal for aircraft turbine blades, aircraft wings, aircraft landing gear support beams, etc.
Product Overviews
Black silicon carbide is produced at high temperature in an electric resistance type furnace with quartz sand and petroleum coke as its main raw materials. Black silicon carbide is fragile and sharp, and has certain electrical and thermal conductivity. It have been used for processing glass,refractory materials,ceramic,stone,cast iron and other metal.
Advantages:Â
(1) Special treated products get higher purity, better toughness, and better grinding effect
(2) Higher purity and less impurities
(3) Chemical washed and water washed good cleanness.
(4) Good hardness,Corrosion resistanceÂ
The chemical index
SIC 97-99
F.C 0.2-0.3
Fe2O3 0.3-0.8
Application:
1.Coated the inner wall of water wheel, impeller, cylinder to provide abrasion resistance and prolong life.
Wholesale high quality Black Silicon Carbide/carbofrax for precision casting
Products Introduction
Black silicon carbide is quartz sand, petroleum coke and wood chips as the main raw material, in the resistance furnace by high temperature smelting.Black silicon carbide has a Mohs hardness of 9.15 and a relatively high hardness. It is suitable for precision grinding of hard glass.
Advantages
(1) Special treated products get higher purity, better toughness, and better grinding effect
(2) Good hardness,Corrosion resistance
(3) Chemical washed and water washed good cleanness.
(4) Higher purity and less impurities
Chemical indicators
SiC â?¥98%
Fe2O3â?¤0.35%
F.Câ?¤0.25%
Physical indicators
Specific gravity:3.2-3.25g/cm3
Bulk density:1.2-1.6g/cm3
Melting point:2600°C
Maximum service temperature:1900°C
Mohs hardness:9.15
microhardness:2940~3300kg/mm2
Coefficient of linear expansion:1.5-2
Available Sizes
Grains
16#20# 22# 24# 30# 36# 46# 54# 60# 80# 100# 120# 150# 180# 220#
Micropowder
240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000#
Application
1.Coated the inner wall of water wheel, impeller, cylinder to provide abrasion resistance and prolong life.
2.Raw materials for grinding wheels and sandpaper
3.Resin grinding wheel,High temperature ceramic
4.Colored metal,iron and steel industry
5.Sandblasting derusting,stainless steel products, steel, steel pipe, steel
Our advantages
1.Our products are of good quality.
2.Our products have competitive price.
3.We can customize special product models for you.
Contact us
Tel:+86-15890150757
Landline:+86-0371-6090-0379
Skype:15890150757
Introduction white corundum:
White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.It is suitable for surface beautification of glass and metal, and can also be used as raw material for sandblasting and rust removal.
Chemical Composition
AL2O3 99.5;
Fe2O3 0.05;
Na2O 0.30;
SiO2 0.03
Main Physical Properties
Mohs hardness:9
Bulk density:1.75-1.95g/cm3
Real density:3.95
Melting point:2250
Application
Bonded abrasives and coated abrasives
Floor /wall laminates
Thermal spraying
Lapping µ-blasting applications
Surface preparation and finishing
Super refractories,ceramics and tiles
Brake linings
