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type of product: Corundum Brown, sizing F12 – F220                         

ABRASIVE GRAINS OF CORUNDUM BROWN

sizing F12 – F220

TYPE A

1. A block of Corundum Brown is smelted from calcinated bauxites, cokes and Fe cuts in arc electrical furnace. From that block, lump of I. grade is sorted out, milled on roll crusher, magnetized, annealed at temperature of 1050 oC and sieved according to a required granulometrical composition.

2. Chemical compound:

  guaranteed analysis
Al2O3 95,0 % min.
Fe2O3 0,3 % max.
TiO2 3,0 % max.
SiO2 1,0 % max.

3.     Physical properties:

3.1.  Bulk density

granulation g/dm3 min. granulation g/dm3 min.
F12 2010 F60 1750
F14 1980 F70 1730
F16 1970 F80 1720
F20 1950 F90 1700
F24 1900 F100 1680
F30 1870 F120 1650
F36 1850 F150 1600
F40 1830 F180 1580
F46 1800 F220 1500
F54 1780    

3.2. Granulation

Granulation compound of grains 99 A I b F12 to F 220 has to meet requirements FEPA standard 42-D-1984. After agreement there is also a possibility to supply grainmixtures in framework of technological possibilities.

3.3. Colour – brown.

4.     Usage:  

a)      production of grinding tools and instruments with ceramic, resinous, magnesite, shellac and rubber binder

b)      production of refractory blocks, bricks, cements, ceramic pouches, catalyzers and compacting mixtures

c)      dishing-up in free form, drum, vibrating - removal of fraies

d)      blasting of sheets, welds, constructions in dry and wet status

e)      productions of filters and diffusion nozzles

f)      treatment of surfaces and measurements with lappeding - achievement of paralellity of flats and exactness measurements

g)      production of brake shoes, brake lining and brake plates

h)      adaption of non-slip surfaces, floors, stairs, ramps and pavements

i)        at cutting stones as cutting medium to cable and frame saws

j)        production of saves, scraper, peeling of fruits

 

ABRASIVE GRAINS OF CORUNDUM BROWN

sizing F12 – F220

TYPE B
 

1. A block of Corundum Brown is smelted from calcinated bauxites, cokes and Fe cuts in arc electrical furnace. From that block, lump of I. grade is sorted out, milled on roll crusher, magnetized, annealed at temperature of 1050 oC and sieved according to a required granulometrical composition. 

2.Chemical compound:

    F12-F30 F36-F80 F90-F180 F220
Al2O3 % min 94,0 94,5 93,0 93,0
Fe2O3 % max 0,6 0,5 0,7 0,8
TiO2 % min 1,8 1,8 1,8 1,8
CaO % max 0,8 0,8 0,9 1,1
content of magn.fractions %max 0,2 0,2 0,2 0,2


 

    F230-F280 F320-F600 F800-F1000 F1200
Al2O3 % min 96,0 95,0 94,0 94,0
Fe2O3 % max 0,4 0,4 0,5 0,5
TiO2 % min 1,8 1,8 1,8 1,8
CaO % max 0,5 0,5 0,5 0,7
ontent of magn. fractions %max 0,05 0,05 0,05 0,05


3.     Physical properties:

3.1.  Bulk density

grain size g/dm3 min.
F12-F16 1880
F20-F22 1830
F24-F46 1780
F54-F80 1760
F90-F220 1740

3.2. Granulation

Granulation compound of grains 99 A I b F12 to F 220 has to meet requirements FEPA standard 42-D-1984. After agreement there is also a possibility to supply grainmixtures in framework of technological possibilities.

3.3.   Colour - brown.

4.      Usage:

a)      production of grinding tools and instruments with ceramic, resinous, magnesite, shellac and rubber binder

b)      production of refractory blocks, bricks, cements, ceramic pouches, catalyzers and compacting mixtures

c)      dishing-up in free form, drum, vibrating - removal of fraies

d)      blasting of sheets, welds, constructions in dry and wet status

e)      productions of filters and diffusion nozzles

f)      treatment of surfaces and measurements with lappeding - achievement of paralellity of flats and exactness measurements

g)      production of brake shoes, brake lining and brake plates

h)      adaption of non-slip surfaces, floors, stairs, ramps and pavements

i)        at cutting stones as cutting medium to cable and frame saws

j)        production of saves, scraper, peeling of fruits

 

         
 
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