Carbonaceous Additives offered comprise quality assured range of additives that are made available under item code of Lustrous-P3. These are offered in specs of Ash : 6.5% max, VM : 47 - 57%, FC : By difference and comes with the advantage of meeting demands for High-Pressure Moulding Lines. Further, the speciality of the additive is its changing to coke at high temperature that supports filling of voids present at mould/ metal interface.
Quality assured range of Carbonaceous Additives
Made available under item code of Lustrous-P3
Made available in specs of Ash : 6.5% max, VM : 47 - 57%, FC : By difference
Comes with advantage of meeting demands High-Pressure Moulding Lines
The speciality of the additive is it''s changing to coke at high temperature that supports filling of voids present at mould/ metal interface
Can also be offered as per specific requirements of the customers
Item Code: Lustrous-P3
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74.0 to 78.0%
It is a synthetic substitute for coal dust in green sand system. It has consistently very low ash, high volatile matter, excellent flow ability. Lower ash & higher lustrous carbon content makes it possible to greatly reduce the percentage of new sand addition in the system sand. The required percentage addition depends on sand parameters, but typically 0.3 to 0.5%. Also the casting finish & peel are excellent, thus substantially reducing the shot blasting cycles.
Specs: VM : 74.0 to 78.0%, Ash : -3.5% max. FC: By difference
Lower ash built up in the system sand 8c higher permeability
Lower new sand additions reducing cost
Adaptable to mechanized addition due to excellent flowability
Lower moisture additions leading to lower pin holes/blow hole porosity in castings
Excellent as cast finish 81 peel resulting in lower shot blasting costs
Based on European Seacoal, we had indigenously developed Lustrous S3. A carbonaceous additive having the swelling capacity. During pouring hot metal into the moulds, it heats lustrous S3 to swell making it to enter the pores between sand grains providing plasticized bonding so that the volume expansion of the sand grains, caused by structural transitions in Si02, can be accommodated without fracture of the cast face mould surface, thus reducing the chance of expansion defects also.
Lustrous carbon that forms a thin film with high adhesion on sand grains
It swells and clogs the intergrain spaces and compensation of thermal stress from micro dilatation of sand grains
Physically expands itself to fill the spaces between the sand grains