Category:

Description

INTRODUCTION:

AFCIHOLD is a perlite slag holding compound added to molten metal in the ladles, prior to pouring the metals into mould.

DESCRIPTION:

AFCIHOLD is a granular material, and reacts with the slag in the ladle, forming a viscous taffy layer at the metal interface covered by an insulating layer on the top. This condition allows easy removal of the slag, where ladle skimming is practiced and ensures a clean metal surface free from slag. An additional advantage of addition of AFCIHOLD is its highly insulating property, where in it forms an efficient insulating layer on the top of the metal which significantly reduces radiant loss of heat from the metal surface, which if desired may be retained until pouring time and then skimmed off.

APPLICATION:

In applications where AFCIHOLD is introduced in the ladle during filling and after a heel of metal has been poured, it produces a gentle rolling action, which cleans the metal by coagulating the impurities and floating them on the slag layer.

SPECIFICATION:

  1. Colour  –   Grey
  2. Grain Size              –   0 mm – 2.5 mm
  3. Free Moisture, Maximum –    5 %
  4. Mesh Size –    8 + 30
  5. Fusing Temp         –    900 oC & above
  6. Expansion Factor –    10 – 30 cc
  7. Base     –    Silicious
  8. Approximate addition    –     2Kg / Mt.
  9. Insulating property –     Excellent

ADVANTAGES:

  1. A) Cleans the metal very efficiently by coagulating the impurities floating them on the slag layer.
  2. Repeated use increases ladle-lining life by cleaning the walls & leaving a vitreous coating on the refractory lining.
  3. Help to reduce sulphur content of ferrous metals when added to ladle during filling. It is probable that this is the result of AFCIHOLD collecting the products of desulphurization, raising them to the surface & holding them in the slag in such a way that sulphur cannot readily re-enter the bath.
  4. Slag Holding Compound is NEUTRAL in nature and hence it does not affect the lining.
  5. It does not change the chemistry of metal.
  6. Casting rejection due to slag inclusion is avoided
  7. Does not produce objectionable smoke or fumes, avoiding air pollution.

STANDARD PACKING:    40 / 50 Kg. Polythene lined bag , 1 mt Jumbo Bag

PRECAUTIONS:

  1. Material is non – poisonous & safe to use.
  2. Should be kept in tightly closed bag in a cool & dry place to prevent moisture pick-up.
  3. Normal safety aids like goggles & hand – gloves may be used.

DISCLAIMER:

Users are recommended to establish for themselves that the process and material are satisfactory for their requirements. We accept no liabilities for any damages, injuries or loss resulting from the use of this information.