Exothermic Sleeves - 1600 HM

Introduction :

ACEFEED-EX-HM is used for feeding all grades of Iron & Steel Castings having high modulus.

ACEFEED-EX-HM are available in diameter from 150 to 650 mm & in heights of 150 mm & 200 mm.

ACEFEED-EX-HM carries both insulating, exothermic properties, refractoriness 1400-1500oC & offers extended solidification time for feed metal. Thus it will improve feeding efficiency.

Application:

ACEFEED-EX-HM are having sufficient strength & are suitable for ram up application.

Advantages:

  • Feeding efficiency is high due to the combined properties of Exothermic, Insulating & Higher Refractoriness.
  • Due to Ferro-static pressure, sleeve will not dilate as it is having sufficient strength & feed safety margin.
  • It is environmental friendly as it contains low gas.
  • It is having less tendency for moisture pick-up & helps to minimize defects related to moisture pick-up in sleeves.
  • Available in various sizes mentioned in the below table.

Usage Guidelines :

  • Select size of sleeves, according to effective modulus & volume of metal in the sleeves.
  • While selecting the sleeve size, care should be taken to ensure that the parametric requirements like casting modulus, casting feed volume requirement & the sleeve feeding distance are fulfilled.
  • While using this sleeves as a top feeder, a pad of 25-40mm between top surface of the casting & the sleeve is recommended to shift hot spot into the pad.
  • While using this sleeves as top riser, it is important to prevent heat loss from top open face of the sleeve. Hot topping compound will be used to minimize heat loss & to improve feeding performance of sleeves.

Selection of Sleeve Sizes:

Sr.

No.

 

Sleeve size

(mm)

(ID x Height)

Modulus (mm)

Volume of

metal in

sleeves (cc)

 

ID (mm)

 

 

Height

(mm)

Pack

size

(Nos.)

Effective Geometric

1

150x200

43-43.5

27.5-28

3750-3775

150

200

9

2

150x225

51.8-52

33.4-33.6

4320-4330

155

225

4

3

180x150

44-44.5

28.5-29

4000-4050

180

150

6

4

175x200

48-48.5

31.5-32

5350-5400

180

200

6

5

200x200

52-52.5

33.5-34

6550-6600

200

200

5

6

225x200

54.5-55

36-36.5

8300-8350

225

200

5

7

250x200

58-58.5

38.5-39

10200-10225

250

200

4

8

275x200

62-62.5

41-41.5

12300-12325

275

200

2

9

300x200

64.5-65

43-43.5

14600-14625

300

200

2

10

325x200

67.5-68

45-45.5

17100-17125

325

200

1

11

350x200

69-69.5

46.5-47

19775-19800

350

200

1

12

375x200

72-72.5

48.5-49

22675-22700

375

200

1

13

400x200

73-73.5

50-50.5

22750-25775

400

200

1

14

425x200

75.5-76

51.5-52

29025-29050

425

200

1

15

450x200

77-77.5

53-53.5

32500-32525

450

200

1

16

475x200

76-76.5

54-54.5

36175-36200

475

200

1

17

500x200

77.5-78

55.5-56

40050-40100

500

200

1

18

525x200

80-80.5

56.5-57

44100-44125

525

200

1

19

550x200

81.5-82

58-58.5

48375-48400

550

200

1

20

575x200

80.5-81

59-59.5

52825-52850

575

200

1

21

600x200

81.5-82

60-60.5

57475-57500

600

200

1

22

625x200

82.5-83

61-61.5

62325-62350

625

200

1

23

8”x12” (open)

60.5-61

39-39.5

10550-10575

8”

12”

1