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Continuous Casting

The casting process consists in a continuous outflow of molten metal through the hole under the influence of gravity. In contact with the cooled surface, the metal solidifies and releases it in the form of rods with a round or square cross-section or in the form of pipes.
One of the applications of graphite are strip casting dies used for metal continuous casting. This technique is used in the processing of non-ferrous metals such as copper and aluminium.
The choice of the right grade of graphite depends on the composition of the alloy, which is being casted.
Brass (Cu-Zn) requires the use of properly porous graphite, so that the zinc can evaporate in the area of the solidification front. Grey iron requires wear-resistant graphite, while alloys containing elements such as nickel or cobalt must reduce the chemical impact of the graphite form. The factors that determine the choice of the grade of graphite are:

  • Casting speed
  • Size and shape of the casting part
  • Quantity of alloy
  • Casting orientation (vertical or horizontal)

Not only the graphite grade itself is responsible for a satisfactory casting result, but it also depends on the design of the casting die, the quality of machining and the specific characteristics of the casting installation.

For horizontal and vertical casting process we offer isostatic, moulded, vibration-moulded and extruded graphites. We can supply you with products such as cooling plates, strip casting dies, crucibles, casting moulds or semi-finished products (round/square materials)

We will be glad to help you with choosing the right graphite grade, so that it corresponds to the casting conditions and the type of casted metal.

Recommended use of CGI and CGM graphite for metal alloy dies

AlloyShapeCGM-185CGI-185CGI-187CGI-189CGI-775CGI-785
Grey and ductile ironwire
billet
strip
tube
Brass (Cu-Zn)wire
billet
strip
tube
Bronze (Cu-Sn)wire
billet
strip
tube
Phosphorus bronzewire
billet
strip
tube
Maillechort (CuNiZn) Nickel-silverwire
billet
strip
tube
Nickel-copperwire
billet
strip
tube
Red copper, Phosphorus deoxidized copperwire
billet
strip
tube
Precious metal alloyswire
billet
strip
tube

NOTE

Further improvements in the service-life and speed of casting can be reached through a pyrolytic carbon coating and/or purified grades.

As for the various data-sheets please contact us.

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