Casting is the first operation which is performed in the workshop and enables the melting and alloy of silver and copper.
In order to optimize the production time and costs, we split this procedure in two distinct stages: the precasting, which is performed by using induction ormicrofrequency furnaces and the continuous melting casting with horizontal melting furnaces .
During the precasting, the two metals are put in a metal-melting furnace, an engraved cylinder which is resistant to extremely high temperatures and, due to the powerful electromagnetic field produced by the induction furnace, they are turned into liquid alloy in a very short time.
This takes place at the temperature of approx. 980 °C.
The proper casting takes place in the horizontal continuous melting furnace. The liquid alloy is initially poured inside the furnace where a thermo-insulated room, with the help of certain resistors, preserves the temperature constant at 980 °C. Thus the liquid metal passes through a die, which is equipped inside with a cooling circuit. The metal comes out in solid state and takes the shape of an approx. 7-mm thick raw metal strip.
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