Exothermic Sleeves - 1600 ND

Introduction :

ACEFEED-EX-ND is used as top feeder for feeding all grades of Iron & Steel Castings. Due to the smaller contact area, it will reduce gas cutting & the grinding work.

It offers benefit of the breaker core & in many cases, it is possible to knock off the feeder. The contact diameter of the sleeve is less than 50% of the original diameter of the sleeve thus contact area is minimized. Hence it is suitable where the casting contact area is limited.

Application:

ACEFEED-EX-ND is used as top feeder to get benefit such as low grinding & low gas cutting work due to reduced opening.

It is suitable for ram-up application. It is suitable where space is limited in case of conventional sleeves.

Advantages:

  • Yield is increased due to less volume in sleeves as compared to conventional sleeves.
  • Reduction in fettling cost & metal loss due to less contact area.
  • It eliminates the gas cutting of risers in Steel castings due to easy knock off of the riser.
  • It carries good properties like insulating, Exothermic & refractoriness 1400-1500OC & carries sufficient strength.

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.
  • Handling should be careful to avoid damage of the neck down portion of the 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

ND 1.5

9-10

6-6.5

52-57

20

60

200

2

ND 2

13.7-14.7

7.5-8.5

80-90

20

60

128

3

ND 3

21-22

12-13

285-295

30

87

72

4

ND 4

27.5-28.5

16-17

690-700

40

115

24

5

ND 5

34.5-35.5

20-21

1300-1320

50

135

16

6

ND 6

40-41

24-25

2180-2200

60

160

10

7

ND 150 (150x200)

42-42.5

27-27.5

3075-3100

150

200

8

8

ND 180 (180x200)

47-47.5

30-30.5

4200-4225

180

200

8

9

ND 200 (200x200)

49.5-50

31.5-32

4975-5000

200

200

5

10

ND 225 (225x200)

51-51.5

34-34.5

6150-6175

225

200

4

11

ND 250 (250x200)

53.5-54

35.5-36

7300-7325

250

200

4

12

ND 300 (300x200)

56.5-57

37.5-38

9575-9600

300

200

2

13

ND 350 (350x200)

57-57.5

39-39.5

12225-12250

350

200

2

14

ND 400 (400x200)

57.5-58

39.5-40

14650-14675

400

200

1