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White emery

 

White emery 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.The White emery produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.

 

Main Physical Properties

MOHS HARDNESS

9.0

BULK DENSITY

1.75-1.95g/cm3

SPECIFIC GRAVITY

3.95g/cm3

 

Application

1.Bonded abrasives and Coated abrasives

2.Floor / Wall Laminates

3.Thermal Spraying (Plasma Spraying)

4.Lapping & Micro-blasting applications

5.Surface preparation and finishing

6.Super Refractories, Ceramics and Tiles

7.Brake linings

           

1,Used for refractory,castable

 

 

 

  Properties

     Type

 

    0-1 1-3 3-5 5-8mm

 0-100#  0-200#   0-320#  325#

Guarantee  Value

Typical Value

Guarantee Value

Typical Value

 

Chemical

Composition

Al2O3

  ≥99

 99.5

 ≥98.5

 99.0

SiO2

  ≤0.4

 0.06

 ≤0.30

 0.08

Fe2O3

  ≤0.2

 0.04

 ≤0.20

 0.10

Na2O

  ≤0.4

 0.30

 ≤0.40

 0.35

2,Used for abrasives,blasting,grinding

    

properties

 

    Type

              Grains

8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#

   Guarantee Value

         Typical Value

Chemical

Composition

Al2O3

              ≥99

                99.50

SiO2

              ≤0.2

                0.04

Fe2O3

             ≤0.2

                0.04

Na2O

             ≤0.30

                0.23

3Used for abrasives ,lapping,Polishing

    

 

  properties

       Type

                           Micropowder

W”

W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5

FEPA”

F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000

JIS”

240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000#

Guarantee Value

  Typical Value

 Chemical

 Composition

Al2O3

                ≥99

   99.20

SiO2

                ≤0.4

   0.08

Fe2O3

                ≤0.2

   0.06

Na2O

                ≤0.4

    0.35

 

Application:

Aggregate for high-quality refractory materials (shaped and non-shaped)

Raw material for refractory brick

Abrasive material

High end refractory products for the steel, foundry , and glass industry

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