Systems, methods, and cored wires for treating a molten metal
Assignee2498890 Ontario Inc.
InventorMark Reynolds
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Abstract
Systems, methods, and apparatus for treating a molten metal are provided. A metal treatment system, comprising: a wire feeding subsystem; and a cored wire; wherein the wire feeding subsystem feeds the cored wire into a metal bath at a controlled wire feed rate, and wherein the metal bath comprises a molten metal; wherein the cored wire comprises: a consumable outer sheath having a tubular cross section; and a core fill material coupled to an inner surface of the outer sheath, wherein the core fill material comprises a refining agent for refining the molten metal; and wherein the refining agent reacts with the molten metal, thereby causing an impurity to be removable from the metal bath.
Claims21
A cored wire for refining molten aluminum, the cored wire comprising:
- a consumable metal sheath comprising aluminum;
- and
- a core fill material coupled to an inner surface of the sheath to form the cored wired;
- wherein the cored wire is formed by coupling the core fill material in a solid powdered state to the inner surface of the consumable metal sheath and working the cored wire to decrease the diameter of the cored wire from a first diameter to a second smaller diameter and increase the length of the cored wire;
- wherein the core fill material includes a eutectic refining agent including MgCl2, the eutectic refining agent having a eutectic point lower than the melting point of the molten aluminum;
- and
- wherein the eutectic refining agent reacts with the molten aluminum when exposed to the molten aluminum when the cored wire is introduced into the molten aluminum, and wherein the reaction caused by the presence of the eutectic refining agent in the molten aluminum separates an impurity from the molten aluminum, such that the impurity can be removed from the molten aluminum.
A metal treatment method comprising:
- feeding a cored wire into molten aluminum at a controlled wire feed rate, wherein the cored wire comprises:
- a consumable metal sheath comprising aluminum;
- a core fill material including a eutectic refining agent having a eutectic point lower than the melting point of the molten aluminum;
- and
- wherein the cored wire is formed by coupling the core fill material in a solid powdered state to the inner surface of the outer sheath and working the cored wire to decrease the diameter of the cored wire from a first diameter to a second smaller diameter and increase the length of the cored wire;
- reacting the eutectic refining agent with the molten aluminum;
- separating an impurity from the molten aluminum;
- and
- removing the separated impurity from the molten aluminum.
A system for removing impurities from molten aluminum, the system comprising:
- a wire feeding subsystem positioned in-stream on a casting line;
- and
- a cored wire;
- wherein the wire feeding subsystem is configured to feed the cored wire into the molten aluminum at a controlled wire feed rate;
- and
- wherein the cored wire comprises:
- a consumable outer sheath comprising aluminum;
- and
- a core fill material including a eutectic refining agent including MgCl2, the eutectic refining agent having a eutectic point lower than the melting point of the molten aluminum, wherein the eutectic refining agent reacts with the molten aluminum when exposed to the molten aluminum when the cored wire is introduced into the molten aluminum;
- and
- wherein the cored wire is formed by coupling the core fill material in a solid powdered state to the inner surface of the outer sheath and working the cored wire to decrease the diameter of the cored wire from a first diameter to a second smaller diameter and increase the length of the cored wire;
- and
- wherein the reaction caused by the presence of the eutectic refining agent in the molten aluminum separates an impurity from the molten aluminum, such that the separated impurity can be removed from the molten aluminum.
Dependencies are inferred from the claim text.