Method and apparatus for cutting steel to reduce slag adherence
AssigneeOxy-Arc International, Inc.
InventorClaude Bissonnette
Life of this patent
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Abstract
A steel cutting apparatus includes a cutting torch that is moved in an arcuate path for guiding the cutting torch so that a cutting flame of the cutting torch is always aimed at a bottom corner of the steel at the side where the cutting process begins. Molten steel and iron oxide flow through a kerf in the steel toward the bottom corner, and drop away from the billet for collection and disposal. Only a very small amount of slag adheres to the bottom corner of the billet when cutting is complete.
Claims15
An apparatus for cutting steel to reduce slag adherence to the steel, comprising a cutting torch and means for moving the cutting torch in an arcuate path from a first orientation in which the cutting flame is perpendicular to a horizontal plane extending along a bottom at a first side of the steel, to a second orientation in which the cutting flame is parallel to the horizontal plane extending along the bottom at the opposite side of the steel to ensure that a cutting flame of the cutting torch is continuously aimed at a fixed point at the bottom of the first side of the steel.
An apparatus for cutting a steel billet from a continuous cast steel strand to reduce slag adherence to cut edges of the steel billet, comprising a cutting torch and means for moving the cutting torch in an arcuate path from a first orientation at a first side of the steel strand in which the cutting flame is perpendicular to a bottom of the steel strand, to a second orientation at the opposite side of the steel strand in which the cutting flame is parallel to the bottom of the steel strand, to ensure that a cutting flame of the cutting torch is continuously aimed at a bottom corner of the first side of the steel strand until the steel billet is cut from the steel strand;
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- clamping members for engagement with veridical sides of the steel strand to move the apparatus along with the steel strand as the steel strand is continuously cast.
Dependencies are inferred from the claim text.