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US 11,525,168 B2Granted
Cored wire with particulate material
AssigneeP.C. Campana, Inc.
InventorDavid L. Campana, Sr.
Life of this patent
Estimating the term…
Abstract
A cored wire for refining molten metal includes a reactive core material that is in the form of a solid rod. A non-reactive particulate material radially surrounds the solid core material, and an exterior metal jacket radially surrounds the particulate material. The particulate material may include wood or other material that when introduced into the molten metal, undergoes thermal decomposition to release carbon dioxide, hydrocarbons, or combinations thereof as a shroud around the core material.
Claims20
An elongated cored wire for treating molten metal, comprising:
- a solid elongated rod including at least one of sulfur, magnesium, tin, antimony, lead, sodium, calcium metal, aluminum metal, nickel metal, an alloy of calcium-silicon, an alloy of ferro-titanium, an alloy of ferro-boron, an alloy of calcium-aluminum, an alloy of magnesium-calcium, an alloy of magnesium-aluminum, or combinations thereof, a length of the rod extending along a length of the cored wire;
- a particulate material fully radially surrounding the rod along the length of the cored wire;
- and
- an exterior metal jacket radially surrounding the rod and the particulate material along the length of the cored wire;
- wherein when the cored wire is introduced into the molten metal, the particulate material undergoes thermal decomposition to release carbon dioxide, hydrocarbons, or combinations thereof;
- and
- wherein the particulate material consists of wood, bauxite, cellulose, bentonite clays, lime, calcium oxide, hemp, cotton, burlap, jute, flax, rayon, felt, silk, or combinations thereof.
4 more elements
A method of making a cored wire for treating molten metal:
- providing a metal strip defining a trench extending along a length of the metal strip;
- providing a solid rod including at least one of sulfur, magnesium, tin, antimony, lead, sodium, calcium metal, aluminum metal, nickel metal, an alloy of calcium-silicon, an alloy of ferro-titanium, an alloy of ferro-boron, an alloy of calcium-aluminum, an alloy of magnesium-calcium, an alloy of magnesium-aluminum, or combinations thereof;
- arranging the rod in the trench such that a length of the rod extends along the length of the metal strip;
- introducing a particulate material into the trench such that the particulate material is continuous along the length of the metal strip;
- and
- radially surrounding the rod and the particulate material with the metal strip along the length of the metal strip;
- wherein when the cored wire is introduced into the molten metal, the particulate material undergoes thermal decomposition to release carbon dioxide, hydrocarbons, or combinations thereof;
- wherein the particulate material fully radially surrounds the rod along the length of the cored wire;
- and
- wherein the particulate material consists of wood, bauxite, cellulose, bentonite clays, lime, calcium oxide, hemp, cotton, burlap, jute, flax, rayon, felt, silk, or combinations thereof.
7 more elements
A method of treating molten metal comprising:
- providing a cored wire including:
- a solid rod extending along a length of the cored wire and including at least one of sulfur, magnesium, tin, antimony, lead, sodium, calcium metal, aluminum metal, nickel metal, an alloy of calcium-silicon, an alloy of ferro-titanium, an alloy of ferro-boron, an alloy of calcium-aluminum, an alloy of magnesium-calcium, an alloy of magnesium-aluminum, or combinations thereof,
- a particulate material fully radially surrounding the rod along the length of the cored wire, and
- an exterior metal jacket radially surrounding the rod and the particulate material along the length of the cored wire;
- and
- introducing the cored wire into the molten metal, such that the particulate material undergoes thermal decomposition to release carbon dioxide, hydrocarbons, or combinations thereof as a shroud around a leading end of the rod to thereby allow the calcium at the leading end of the rod to melt;
- wherein the particulate material consists of wood, bauxite, cellulose, bentonite clays, lime, calcium oxide, hemp, cotton, burlap, jute, flax, rayon, felt, silk, or combinations thereof.
4 more elements
Dependencies are inferred from the claim text.