Direct Pour System

Introduction :

ACEFEED-DP is a combination of Ceramic Foam Filter (VUKOPOR)& Insulating Sleeve. It is used for Cast Iron, Aluminium, Copper Base alloys & Steel.

Mechanism:

ACEFEED-DP Mechanism takes place in two stages.

  1. Filtration
  2. Feeding

1)   Filtration:

The Filtration effect is due to the mechanical entrapment of inclusions. The change in flow & pressure through the filter causes the contaminants (Inclusions) to stick to the filter labyrinth (Web of pore).

VUKOPOR Filter has maximum open pore structure (minimum internal blockages). This enhances the filtration efficiency & flow rate. It also reduces entrapment of air bubbles into the metal downstream. It changes Turbulent flow to a Laminar flow. It also reduces the oxide formation within the filter.

2) Feeding :

Once Filtration takes place Ceramic Foam Filter floats at top & Feeding action starts. Feeding effect is due to nature of both highly Insulating & high refractoriness 1400-1500OC of the Sleeve. It improves the temperature gradients within the castings & promotes the Directional Solidification.

Salient Features of ACEFEED-DP:

  • Gating System is completely eliminated.
  • Rejection due to slag inclusion especially at machining stage is minimized.
  • Soundness of Casting is improved.
  • Fettling work & other rework is minimized.
  • Surface finish of casting is improved.
  • Machinability is improved.

Types of ACEFEED-DP :

  1. Conventional ACEFEED-DP :-It can be used as Ram up or insert applications. It is suitable for Jolt squeeze molding machine, hand molding & for High Pressure & Disamatic Molding machine.
  2. Insert types ACEFEED-DP :-In this type of ACEFEED-DP, ceramic foam filter is placed into the seat provided at the top of the sleeve. It can be usedin insert applications in the pre-formed Mould cavity in the upturned molding system. The sleeve is located below the down-sprue. It is available in 50, 70 & 90 dia.
  3. Neck down type ACEFEED-DP :-It is mainly used for top feeder application where feed metal requirement is higher. It is directly placed on the casting surface with or without breaker core.

Storage Precautions:

  1. Store in a cool & dry place.
  2. In order to avoid moisture pick up, kindly remove the sleeves from packed boxes only at the time of use.
  3. In case of ram up application, care should be taken to avoid sleeve damages during moulding.
  4. After inserting sleeves into the mould, torching or coating of sleeves should be avoided.
  5. Filter should be cleaned with compressed air before inserting it in the sleeve.

 

Size Of ACEFEED-DP

Volume of Metal in the system (cc)

Effective Modulus(cm)

Filtration Capacity(Kg)

Max. Flow Rate(Kg/sec)

Pack size(Nos.)

For Iron & Copper Base Alloys

 

 

 

 

 

Dia. 30x100 mm Insulating

73

 

1.2

 

0-14 SG/Cu

0-30 Grey.

1-1.5

2-2.5

162

 

Dia. 40x100mm (4/10) Insulating

162

 

1.4

 

14-16 SG/Cu

45-50 Grey.

1.75-2.25

2.75-3.25

98

 

Dia. 40x125mm (4/12.5) Insulating

192

 

1.6

 

15-18 SG/Cu

50-55 Grey.

2-2.5

3-3.5

64

 

Dia. 50x100mm (5/10) Insulating

206

 

1.7

 

18-22 SG/Cu

55-65 Grey.

2.75-3.25

4.5-5.5

112

 

Dia. 50x125mm (5/12.5) Insulating

270

 

1.8

 

20-24 SG/Cu

60-70 Grey.

3-3.5

5-6

49

 

Dia. 50x150mm (5/15) Insulating

373

 

1.9

 

24-30 SG/Cu

80-90 Grey.

3-3.5

5-6

48

 

Dia. 60x100mm (6/10) Insulating

292

 

1.95

 

28-40 SG/Cu

85-110 Grey.

4.00-5.00

6-7

72