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US 9,550,232 B2Granted
Electromagnetic stirring device
AssigneeErgolines Lab S.R.L.
InventorsStefano De Monte, Stefano Spagnul
Life of this patent
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Abstract
An electromagnetic stirring device of melted metallic materials inside a cooling chamber of a casting machine having a retaining body of induction coils that is a body composed of at least two reciprocally different portions.
Claims28
An electromagnetic stirring apparatus for storing melted metallic materials inside of a cooling chamber of a casting machine, the electromagnetic stirring apparatus comprising:
- a plurality of induction coils that apply a current so as to generate an electromagnetic field so as to apply a stirring force, the stirring force acting in correspondence with a partially solidified metallic bar that moves through the cooling chamber, the partially solidified metallic bar having a solid shell that encloses a nucleus that is in a melted state, the nucleus being subject to the electromagnetic field;
- a retaining body that retains said plurality of induction coils, said retaining body having a duct therein, said duct adapted to allow a passage of the metallic bar, said retaining body having portions;
- a driver cooperative with said portions of said retaining body between at least two configurations;
- a movement device cooperative with the metallic bar and adapted to move the electromagnetic stirring device along a guide and along a length of the metallic bar in a direction parallel to the metallic bar for at least a portion of the length of the metallic bar in a different operative position with respect to the metallic bar.
1 more element
A casting process for the production of metallic bars, the casting process comprising:
- pouring metallic material into a mold of a casting machine;
- extracting the metallic bar from said mold such that said metallic bar exits said mold in a partially solidified state, said metallic bar moving within a cooling chamber, the metallic bar having a shell which is in a solid state and encloses a nucleus that is in a melted state;
- and
- stirring the nucleus with at least one electromagnetic stirring apparatus, the at least one electromagnetic stirring apparatus comprising:
- a plurality of induction coils that apply current so as to generate an electromagnetic field so as to apply a stirring force, the stirring force acting in correspondence with the nucleus of the metallic bar that moves through the cooling chamber;
- a retaining body that retains said plurality of induction coils, said retaining body having a duct therein, said duct adapted to allow a passage of the metallic bar, said retaining body having portions;
- a driver cooperative with said portions of said retaining body between at least two configurations;
- and
- a movement device cooperative with the metallic bar and adapted to move the at least one electromagnetic stirring apparatus along a guide and along the length of the metallic bar in a direction parallel to the metallic bar for at least a portion of the length of the metallic bar and in different operative positions with respect to the metallic bar.
6 more elements
Dependencies are inferred from the claim text.