Tangshan Yutong Import and Export Corporation
Main products:Fire Bricks,Ceramic Fiber Blanket,Rock Wool,Insulation Bricks,Gypsum Board
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  • Contact Person : Mr. Zhang Shaofeng
  • Company Name : Tangshan Yutong Import and Export Corporation
  • Tel : 86-315-3195890,3195891
  • Fax : 86-315-3195895
  • Address : Hebei,Tangshan,6/F Block B, Orienal Int'l Bldg.152 Jianshe Road
  • Country/Region : China
  • Zip : 063000

Calcined Flint Clay

Calcined Flint Clay
Product Detailed
Foundry sands, also called Calcined Kaolin and Flint clay Packing: 25kg/plastic woven bag or paper complex bag, 1MT bag

Calcined kaolinite (CK) for precision casting is one kind of natural mullite, made of pure material through high temperature at 1,300°C calcined, and suitable for precision casting.The products have been processed by Japanese equipment with special techniques and for excellent foundry data. Its quality can be favorably compared with molochite.Comparisons for kinds of foundry sands:

 

CERAMETAL

VALERITE

MOLOCHITE

C.K.

AL2O3

41.00%

43.00%

42.00%

46.06%

SIO2

54.00%

53.00%

56.50%

51.20%

Fe2O3

1.70%

1.30%

1.10%

1.37%

TiO2

1.70%

1.60%

0.07%

1.32%

CaO+MgO

0.60%

0.40%

0.37%

 

K2O+Na2O

0.80%

0.60%

2.10%

 

Mullite

50%

55%

55%

52.00%(50-55)

Cristobalite

25%

20%

 

16.4%(15-20)

Amorphous phase

25%

25%

45%

31.6%(25-30)

Apparement density

2.45

2.6

2.7

2.69

Apparement porosity

2%max

3%

8%

10.7%

Hot expansion rate

5.9×10

5.9×10

4.44×10

5.9×10

 

0-1000

0-1000

20-1000

0-1000

Mohs hardness

  

7--8

7--8

P.C.E.

  

35Min

35Min

Outer packing:25kg/plastic woven bag or paper complex bag1,000kg/jumbo bag

Calcined Flint Clay

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