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Aluminum Industry

Aluminium is the second most abundant metallic element in the earth’s crust after silicon & is remarkable for its low density and ability to resist corrosion. The transportation, construction & packaging industries consume the majority of this metal. Aluminium also has the advantage of a practically infinite capacity for recycling, making it a choice solution in terms of environmental protection. Aluminium production is divided into two basic categories – primary & secondary production. Aluminium Industry is continuously working to increase productivity & to reduce cost through energy efficient & environment friendly smelting technology. Our Principle M/S TRL Krosaki offers a wide range of refractory for both primary & secondary production units. Some of the major Primary Aluminium Production units where we have been successfully catering to the refractory requirements are :
Primary Smelting
 Carbon Bake or Anode Baking Furnace (ABF)
 Rodding
 Potlining
 Hot Metal Ladle
 Melting & Holding Furnace
 Casting & Pouring Launder
Primary Smelting Process

Aluminium Casting Process

Rodding Shop - In Rodding shop the ROD which will act as a current conductor from Anode Ring bus to the Anode is sealed with the anode using molten cast iron. This process needs induction furnace for producing cast iron & Ladles or crucibles for transporting the hot metal from induction furnace to the anodes. We have complete refractory solutions for the Equipment used in Rodding Shop.

Acidic Ramming Mass – TRL RAM SK 165 & TRL RAM SK 185 are extensively used as a working lining material in Induction Furnace with satisfactory performance. Dense conventional castable - TRLCast AH 90 is used as coil coating item in Induction Furnace & TRL Cast AH 50 or TRL Cast AH 60 is used as working lining in Ladle or crucible. TRL Cast AH 60 is designed with high purity calcium aluminate cement alongwith superior quality calcined bauxite and Talochite. It has Low iron (<1.5%) alongwith early strength development characteristics. It is volume stable at application temperature & easy to apply either by casting or trowelling.


Pot Lining -Pot is conventional name of the Aluminium reduction cell. The whole pot is lined with refractory and thermal insulation materials in a systematic way in order to make the pot thermally insulated and also to form as a cathode for the reduction process. We offers a wide ranWE of products for Pot Lining like-


Insulation Bricks

Nitride Bonded SiC Blocks

Combi Blocks & Carbon Blocks


Ladle Ladle is mainly used for transferring liquid aluminium from electrolytic pots to Melting- Holding Furnace. TRL offers TRL Cast HF 80 AL , TRL Cast HF 85 AL as working lining of Ladle with satisfactory performance.

The special features of this material are:
 Excellent Flow ability with long working time
 High Strength at room temperature & elevated temperature
 Non wetting to molten Aluminium
 High Resistance towards molten Aluminium
The non-wetting behaviour of the material helps to remove the skull easily resulting into less damaWE to the refractory with improved performance.


Melting & Holding Furnace TRL Krosaki offers a complete ranWE of dense aluminium resistant castables and bricks for melting and holding furnaces. In addition to this we provide solution comprising design, supply, application & commissioning.

Melting & Holding Furnace lined with TRL Krosaki Refractories


Casting & Pouring Launder We offers high strength castable which exhibits excellent resistance to thermal shock. It is resistant to liquid aluminium and its alloys. It offers outstanding resistance to erosion and mechanical damage.


TRL Krosaki Product Range: Alumino-silicate based dense castable- TRL CAST HF 80 AL, TRL CAST HF 85 AL, TRL CAST LC 70 LI AL Fused Silica Based Dense Castable – TRL CAST FS 60 AL Dense Conventional Castable for Patching Job – TRL CAST AH 60.
RL Krosaki References in Aluminium Industry :


Raw Materials for Aluminum Industry Description of Raw Materials we supply for Aluminum Manufacturer.

Alumina- Bauxite is the most important aluminous ore for the production of alumina. Bauxite occurs close to the surface in seams varying from one meter to nine meters, formed as small reddish pebbles (pisolites). Bauxite contains 40 to 60 mass% alumina combined with smaller amounts of silica, titania and iron oxide. Alumina is mainly extracted from bauxite using Bayer Process.

Anodes. We supply anodes for use in the smelting process. Anodes are large carbon blocks which act as electrical conductors, allowing the smelting process to take place. Anodes are produced in an area of the smelter called the Green Mill and are made from petroleum coke, pitch and recycled anode butts returned from the smelting process. These materials are mixed together in heated containers and poured into moulds. Once formed, the anodes are transferred to the carbon bake. In the carbon bake, the anodes are placed in furnace and ‘baked’ up to a temperature of 1120oC over a period of two weeks. The baking process bakes the pitch in the mix forming a solid block of carbon so they can withstand the extreme conditions inside the smelting pots. And in addition to above we supply many other materials in including Electromechanical Spares for Aluminum industry