Continuous Casting is a metallurgical process which allows continuous control of the transformation from a liquid metal to a solid state in order to directly obtain semi-finished products like:
- custom sections
The graphite “die” used in this transformation, permits:
- the shaping of the metal,
- the heat extraction necessary to transform the metal from liquid to solid state.
Graphite Choice and Applications
The selection of the best graphite grade for your application depends mainly on the composition of the alloy to be cast: grey iron requires a graphite resistant to wear abrasion; brass, a graphite relatively dense but with enough open porosity to allow zinc to evaporate in the area of the solidification front; non-ferrous alloys containing elements like nickel or cobalt need high density graphite to reduce chemical attack of the graphite die.
The other parameters which determine the choice of the grade are:
- the size and shape of the cast section,
- the speed of casting,
- the total amount of alloy to cast,
- casting orientation (i.e, vertical or horizontal)
In addition to the graphite grade chosen, the casting results are also a function of die design, quality of machining, and the specific characteristics of the casting installation.