Cover Fluxes Powder Manufacturer in India
PRODUCT DATASHEET – NON FERROUS METAL TREATMENT
A range of fluxes for covering, protecting and cleansing molten aluminium and its alloys
GENERAL DESCRIPTION:
ECO – COVERFLUX range of fluxes are used for covering and drossing molten aluminium andit’s alloys. ECO – COVERFLUX fluxes are also available for modifying aluminium – silicon alloys,for recovering aluminium from dross, for reclaiming chips, turnings and borings and for removalof oxide build up on furnace walls
- ECO – COVERLFUX 05 : COVERING FLUX FOR MOLTEN ALUMINIUM
- ECO – COVERFLUX 11 : DROSSING FLUX FOR MOLTEN ALUMINIUM
- ECO – COVERFLUX 36 : MODIFYING FLUX FOR MOLTEN ALUMINIUM
- ECO – COVERFLUX 65 : SODIUM FREE FLUX FOR AL – SILICON ALLOYS
- ECO – COVERFLUX 88 : FURNACE WALL CLEANING FLUX
PURPOSE:
COVERING TYPE – Purely covering fluxes, such as ECO – COVERFLUX – 65 and ECO -COVERFLUX – 34, protect liquid metal from oxidation losses by sharply minimising the contactof metal surface with atmospheric oxygen.
COVERING AND DROSSING FLUXES – Protect liquid metal from oxidation and also cleansethe melt by absorbing oxide inclusions. Its exothermicity melts aluminium beads to return it tothe molten metal. Modifying fluxes refine the grain size of Al-Si eutectic by introducing sodiummetal in the melts.
RECOVERING FLUXES – Melt entrapped aluminium in hot dross due to its intense exothermicaction.
RECLAIMING FLUXES – Improve the recovery of metal in melting of chips, turnings, boringsby absorbing oxides selectively and preventing any premature oxidation prior to the entry in theheel.
FURNACE CLEANING FLUXES – Soften oxide build-up on furnace walls by means ofchemicals reaction and exothermicity.
BENEFITS:
- Covering fluxes prevent oxidation losses of aluminium during melting. Thusimproving the yield of molten metal from the charge
- Drossing-off fluxes absorb oxides and non-metallic inclusions. It reduces theincidence of inclusions in the castings and also reduces the loss of metal throughthe dross
- Modifying fluxes improve the mechanical properties of aluminium – silicon alloysby refining eutectic microstructure
- Recovering fluxes help extract maximum aluminium from hot dross
- Reclaimed fluxes minimise the melting losses associated with the melting of chips,turnings and borings.
- Furnace cleaning fluxes retain the melting capacity and efficiency of furnace whileimproving the life of the refractory lining.
INSTRUCTIONS FOR USE:
COVERING FLUXES
Add recommended quantity as per Application guide given on next page in twostages – half as soon as charge begins to melt, the remainder uniformly distributedover the entire surface when the complete charge is molten. Keep the cover intactas far as possible until the melt is ready for further treatment/casting
COVERING AND DROSSING FLUXES
Add recommended quantity in two stages – half during melting and the remainderafter the metal is ready for pouring. Rabble it into the dross until a red glowingpowdery dross is obtained. Skim the dross prior to casting.
MODIFYING FLUXES
First degas and skim the melt clean when the required temperature of the melt isreached. Sprinkle the modifying flux evenly over the cleaned surface. When itbecomes pasty or fluid, work it well into the melt for about 3 minutes. Allow themetal to stand for five to ten minutes before pouring.
FLUX FOR RECOVERING ALUMINIUMAdd ECO – COVERFLUX – 56 and hot dross alternatively in sandwich fashion into adross bogie, which is perforated at the bottom. Stir the dross every 15 minutesuntil no more metal runs through the perforated base.
FLUX FOR RECLAIMATION OF CHIPS, TURNINGS AND BORINGS
Melt down a heep of metal first in the furnace from the solid scrap or ingots.Add sufficient
ECO – COVERFLUX – 57 to form a fluid cover. Then add the chips,turnings, borings a little at a time through the cover, deep into the melt. Addmore ECO – COVERFLUX – 57 from time to time to maintain the cover in a fluidcondition.
FURNACE CLEANING FLUX
Add ECO – COVERFLUX – 88 evenly on the furnace wall particularly in area of heavyoxide build up just after the tapping operation. Scrap down the softened oxide buildup from the walls by a suitable tool for subsequent removal.
STANDARD PACKING
ECO – COVERFLUX grades – 5, 11, 11(S), 29A, 36A, 56, 57, 58, 66 and 88 are supplied in50 kg polylined HDPE Woven bags.
ECO – COVERFLUX – 34 in 15 kg polycarbuoys.
ECO – COVERFLUX – 65 in 20 kg polycarbuoys.
SHELF LIFE & STORAGE
ECO – COVERFLUX should be stored in a cool and dry place.
The bags should never be kept open as moisture – pick up from atmosphere mayaffect the performance of the product.