Keramtech – Ceramic Filters

Introduction :

THESE CERAMIC FILTERS ARE IMPORTED ONE & ARE IMPORTED FROM M/s KERAMTECH S.R.O. These filters are used for Cast Iron, Steel & Aluminium Alloys. It is available in (hole dia) porosity 1.5mm to 3.5mm. Standard produced shapes are – square, round & rectangular plates, supplied in various sizes.

Salient Features:

  • Open Structure:

This structure not only provide efficient metal filtration but also promote a smooth metal flow from the filter to the mould. It reduces turbulence & minimizes the risk of further inclusion formation after filtration. Smooth metal flow also facilitates steady mould filling.

  • Efficiency:

Effectively removes inclusions by screening & adherence to inner wall of the holes.

  • Quality assurance:

Close dimensional & weight tolerance is controlled by high process standards.

  • Hot strength:

Firing at higher temperature results in better hot strength & Excellent thermal strength ( upto 1500OC).

 

Filter Benefits at Foundry & machining stage:

  • Reduced casting rejection % due to slag, sand, dross & un-dissolved inoculants, inclusions of Sulfides & Oxides at both foundry & machining stage.
  • Increased Casting % yield & productivity by the use of optimum gating system.
  • Increased tool life at machining stage.
  • Improved machined surface quality.

 

Filter Benefits at application stage:

  • Improved mechanical properties such as tensile strength, ductility & impact strength.
  • Improved cyclic fatigue properties.
  • Improved pressure tightness for castings like Cylinder Heads & Blocks etc.

Selection of Filter Type According to Metal to be poured:

Sr.

No.

Name

Chemical Composition

(Main components)

Mechanical

Resistance

Recommended

Applications

1

 

PYROSTAT

 

SiO2 52-55%

Al2O3 38-41%

Up to 1500OC

 

For Cast Iron (Grey C. I. & S.G. Iron)

2

 

RK 5

 

SiO2 72-77%

Al2O3 20-26%

Up to 1740OC

 

For Steel

 

3

 

PYRAL 15

 

SiO2 52-55%

Al2O3 38-41%

Up to 850OC

 

For Aluminium alloy

 

 

Guidelines for Selection of Filter Porosity:

Normally for 15mm thickness filters, we propose to use filter hole size 1.5mm for C.I. &2.2mm for S. G. Iron. For 22mm filter thickness,we propose to use hole size 2.0 - 2.3mm for both C.I. & for S. G. Iron.

Sr.

No.

 

 

Filter Size

No. of

holes

Dia. Of

 hole

 (mm)

Cross

sec. area

mm2

Effective

cross

section

area %

Flow rate (kg/sec)

Filtration capacity(kg)

Pack

size (Nos.)

Grey

S.G.

Grey

S.G.

C. I. Iron C. I.  Iron 

1

37x37x9.5

168

2.2

639

57.6

2-4

1-3

25-50

13-25

752

2

37x37x9.5

328

1.5

580

48.6

2-3

1-2

15-25

10-20

752

3

37x37x12.7

168

2.2

639

57.6

2-4

1-3

25-50

13-25

584

4

40x40x12.7

168

2.2

639

53.4

3-5

1-3

25-60

10-20

480

5

40x40x15

314

1.5

555

46.2

2-3

1-2

20-40

10-20

366

6

40x40x15

168

2.2

639

53.4

3-5

1-3

25-60

10-20

366

7

43.5x43.5x12.7

313

1.7

710

46

3-4

2-3

30-50

25-40

366

8

43.5x43.5x12.7

471

1.5

832

54.8

3-5

2-3

40-80

20-40

366

9

50x50x12.7

314

2.2

1194

57.6

4-6

2-4

60-100

30-60

330

10

50x50x15

314

2.2

1194

57.6

4-6

2-4

60-100

30-60

270

11

50x50x22

314

2.0

986

47.6

4-6

2-4

60-100

30-60

180

12

55x55x12.7

795

1.5

1405

53.3

5-8

3-5

40-80

20-50

285

13

55x55x12.7

429

2.0

1348

55.8

4-6

2-4

40-80

20-50

285

14

55x55x12.7

340

2.2

1293

52.4

4-6

2-4

40-80

20-50

285

15

55x55x12.7

314

2.5

1541

65

5-8

3-5

75-150

35-75

285

16

60x60x12.7

246

2.35

1067

40

3-5

2-3

50-100

25-50

208

17

60x60x12.7

686

1.8

1746

55.3

5-9

2-5

90-150

25-65

208

18

60x60x15

246

2.35

1067

40

3-5

2-3

50-100

25-50

160

19

60x60x15

686

1.8

1746

55.3

5-9

2-5

90-150

25-65

160

20

66.6x66.6x12.7

764

1.8

1944

50.4

6-10

3-6

100-180

50-100

164

21

66.6x66.6x12.7

1071

1.5

1893

52.6

6-10

3-6

100-200

50-100

168

22

67x67x12.7

538

2.3

2235

58.3

7-10

4-6

110-220

55-110

164

23

67x67x15

538

2.3

2235

58.3

7-10

4-6

110-220

55-110

132

24

75x50x15

377

2.2

1433

45.6

5-8

3-5

75-150

35-75

171

25

75x50x22

377

2.2

1433

45.6

5-8

3-5

75-150

35-75

117

26

75x75x15

634

2.3

2634

55.2

9-18

4-8

160-320

60-120

114

27

75x75x22

634

2.3

2634

55.2

9-18

4-8

160-320

60-120

78

28

81x81x12.7

853

2.2

3242

57.6

8-12

5-7

200-420

60-130

132

29

81x81x12.7

634

2.5

3112

59

8-12

5-7

200-420

60-130

132

30

81x81x16

853

2.2

3242

57.6

8-12

5-7

200-420

60-130

102

31

81x81x18

634

2.5

3112

59

8-12

5-7

200-420

60-130

90

32

81x81x19.1

853

2.2

3242

57.6

8-12

5-7

200-420

60-130

84

33

100x50x15

494

2.2

1878

45.6

6-10

3-6

100-200

50-100

126

34

100x50x18

494

2.2

1878

45.6

6-10

3-6

100-200

50-100

102

35

100x50x22

605

2.3

2514

59.5

9-16

3-8

1165-200

38-102

84

36

100x75x22

850

2.2

3231

49

10-15

4-8

150-250

90-150

56

37

100x100x15

585

3.2

4705

55.3

14-20

9-14

420-750

120-300

54

38

100x100x18

1033

2.5

5071

57.1

12-19

8-12

380-670

90-220

42

39

100x100x22

1033

2.5

5071

57.1

12-19

8-12

380-670

90-220

36

40

133x133x20

1732

2.5

8502

52.1

20-50

11-30

590-1000

150-400

24

41

133x133x20

880

3.9

10512

65.2

40-75

20-40

800-1350

300-480

24

42

150x150x22

1003

3.9

11982

58.6

46-85

23-46

920-1550

345-920

16

43

150x150x25

1003

3.9

11982

58.6

46-85

23-46

920-1550

345-920

15

44

Dia. 50x12.7

199

2.2

757

52.2

4-7

1-3

60-100

20-30

330

45

Dia. 50x15

199

2.2

757

52.2

4-7

1-3

60-100

20-30

265

46

Dia. 50x22

199

2.2

757

52.2

4-7

1-3

60-100

20-30

190

47

Dia. 60x12.7

238

2.5

1168

55.4

5-9

3-5

100-140

40-80

216

48

Dia. 60x15

238

2.5

1168

55.4

5-9

3-5

100-140

40-80

176

49

Dia. 60x22

238

2.5

1168

55.4

5-9

3-5

100-140

40-80

120

50

Dia. 70x12.7

361

2.5

1772

57.1

8-12

4-8

120-150

70-120

168

51

Dia. 70x21.2

361

2.5

1772

57.1

8-12

4-8

120-150

70-120

100

52

Dia. 75x10

529

2.2

2011

57.6

6-10

3-5

100-200

50-100

180

53

Dia. 75x15

529

2.2

2011

57.6

6-10

3-5

100-200

50-100

120

54

Dia. 91/88x12

297

3.1

2242

47.1

10-18

5-9

170-300

80-150

96

55

Dia. 200x22

1304

3.9

15577

58.6

90-140

21-55

1200-2000

750-1500

6

Filter Size Selection- Aluminium

Sr.

No.

 

 

Filter Size

 

 

 

No. of

holes

 

 

Dia. Of

hole

(mm)

 

Cross

sec. area

mm2

 

Effective

cross

section

area %

Flow

rate

(kg/sec)

 

Filtration

capacity

(Kg)

 

Pack

size

(Nos.)

 

1

40x40x15

195

2

613

49.7

1-1.5

22-28

366

2

40x40x15

187

2.2

711

57.6

1-1.5

25-32

366

3

50x50x20

314

2.0

987

49.7

1.5-2

30-40

210

4

55x55x20

389

2.0

1222

49.7

2-3

38-52

180

5

60x60x20

460

2.0

1445

49.7

2.5-3.5

45-63

112

6

67x67x20

585

2.0

1838

49.7

3-4.5

58-84

7

75x75x20

634

2.3

2634

55.2

4-6

80-105

90

8

55x35x20

234

2.0

735

49.7

1-2

25-35

240

9

75x50x20

485

2.0

1524

49.7

3-4

48-76

135

10

100x50x20

605

2.3

2514

59.5

4-6

75-100

96

11

Dia. 50x20

199

2.2

757

52.2

1-2

25-38

190

12

Dia. 60x20

238

2.5

1168

55.4

2-3

38-50

120

Filter Size Selection- Steel

Sr.

No.

 

 

Filter Size

 

 

 

No. of

holes

 

 

Dia. Of

hole

(mm)

 

Cross

sec. area

mm2

 

Effective

cross

section

area %

Flow rate

(kg/sec)

Filtration capacity

(Kg)

Pack

size

(Nos.)

 

Carbon

Steel

Stainless

Steel

Carbon

Steel

Stainless

Steel

1

75x75x22

368

2.5

1806

39.1

2-5

2-4

95

60

72

2

75x75x22

449

2.8

2765

58.1

5-10

4-8

160

120

72

3

100x100x22

941

2.5

4619

57.1

8-24

5-17

220

160

36

4

100x100x22

585

3.2

4705

55.3

9-14

7-20

300

200

36

5

133x133x20

1732

2.5

8502

52.1

12-35

10-25

320

200

24

6

133x133x20

880

3.9

10512

65.2

15-45

12-30

400

250

24

7

150x150x22

1003

3.9

11982

58.6

17-52

14-35

580

320

16

8

150x150x25

1003

3.9

11982

58.6

17-52

14-35

580

320

15

9

Dia. 60x22

238

2.5

1168

55.4

2-5

1-3

40-80

25-50

120

10

Dia. 70x20

361

2.5

1772

57.1

3-9

2-6

70-120

40-100

100

11

Dia. 200x20

1304

3.9

15577

58.6

21-55

17-40

750-1500

450-850

7

12

Dia. 200x22

1304

3.9

15577

58.6

21-55

17-40

750-1500

450-850

6