Ceramic Honeycomb-Molten Metal Filtration

Product ID: 1aa3
 
 
ceramic honeycomb molten metal filter
Ceramic honeycomb filter is mainly used in metallurgy, foundry industry, the product features in a large surface area, high mechanical strength, good thermal shock resistance. In the casting of liquid metal, honeycomb ceramic filter can filter out impurities, reduce casting porosity, improve casting quality, as a result: casting cost is reduced and labour productivity is improved.

When the molten liquid metal passes through the ceramic honeycomb channel, the debris, the slag and other inclusions are removed. Ceramic honeycomb filter improves the quality of molten metal flow. A stable and fast laminar molten metal flow prevents air from getting into the molten metal flow, molten metal getting oxidized and splashing out.

Experiments show that, after using honeycomb ceramic filters, the molten aluminium mobility is improves by about 25 to 30%; the casting rejection rate is reduced by 85%; the casting strength is increased by 10 to 20%; the mobility of molten iron is increased by 10 to 15%; the pore defects in casting is significantly reduced; the casting machining performance is greatly improved. Because the impurities are filtered out, the hard point in casting is also eliminated. Currently, ceramic honeycomb ceramic filter has been applied to aerospace, automotive, machinery and many other casting areas, to improve the reliability and performance casting.

ceramic honeycomb molten metal filter round
Base on the case studying in recent years, the prescription and innovate the technique are adjusted to produce ceramic honeycomb filters with different specifications:
  • Cordierite, Mullite, Zirconia mullite, Zirconia corundum filters for the highest temperature 1350 0C, 1500 0C, 1580 0C and 1650 0C
  • Good thermal shock properties
  • Uniform round hole, avoid small eddy and turbulence molten metal flow when metal liquid passing through
  • Accurate extrusion die makes the quality of ceramic honeycomb filter extremely stable and consistency

  

 

Material Properties

 

Material

Al2O3 (%)

Channel Shape

Pore Size (μm)

Coefficient of Thermal Expansion (×10-6/0C)

Softening Temperature 0C

Compressive Strength at 25 0C (MPa)

Cordierite

37

round/square

2~3

≤1.8

1390

≥12

Mullite

46

2~3

≤4.0

1550

≥15

Corundum-mullite

70

2~3

≤5.5

1700

≥15



Ceramic Honeycomb Filter Specification
 

Dimension
(L×W×T, or D×T, mm)

Channel Shape

Channel Size
mm

Number of Channel

Volumetric Opening Rate (%)

Pieces / m3

100×100×20

Square

2.2×2.2

33×33=1089

52.70

5000

100×100×20

Square

2.5×2.5

31×31=961

60.06

5000

100×100×20

Square

3.0×3.0

24×24=576

51.84

5000

81×81×12.5

Square

1.46×1.46

44×44=1936

62.89

12193

75×75×15

Square

2.2×2.2

26×26=676

58.17

11852

75×75×15

Round

Φ2.5

492

42.94

11852

120×65×20

Square

2.2×2.2

38×20=760

47.16

6410

100×65×20

Square

2.2×2.2

33×21=693

51.6

7692

100×60×12.5

Square

2.2×2.2

33×20=660

53.29

13333

100×50×20

Square

1.6×1.6

50×24=1200

61.44

10000

66×66×12.5

Square

1.2×1.2

42×42=1764

58.31

18365

66×66×12.5

Square

1.46×1.46

37×37=1369

66.99

18365

66×66×12.5

Square

2.2×2.2

26×26=676

75.11

18365

66×66×12.5

Round

Φ2.4

440

45.7

18365

60×60×20

Square

1.6×1.6

29×29=841

59.80

13889

60×60×15

Square

2.2×2.2

20×20=400

53.78

18519

55×55×12.5

Round

Φ2.3

367

50.41

26446

55×55×12.5

Square

2.2×2.2

21×21=441

70.56

26446

55×55×12.5

Square

1.15×1.15

37×37=1369

59.85

26446

50×50×12

Square

2.2×2.2

19×19=361

69.89

33333

50×50×12.5

Round

Φ2.3

294

48.86

32000

40×40×10

Round

Φ2.2

172

40.86

62500

40×40×10

Square

1.4×1.4

22×22=484

59.29

62500

Φ90×12.5

Square

2.2×2.2

696

52.95

12582

Φ60×10

Square

1.44×1.44

502

36.82

35368

Φ52×7

Square

2×2

234

44.07

67304

Φ52×7

Square

1.44×1.44

286

27.93

67304

Φ50×10

Round

Φ2.3

109

23.06

50955