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.
Claims5
A method of cutting steel with a cutting torch to reduce slag adherence to a cut edge of the steel, comprising steps of:
- commencing a cut at a first side of the steel;
- moving the cutting torch in an arcuate path shaped to continuously aim a cutting flame of the cutting torch at a fixed point located at a bottom of the first side of the steel;
- and
- following the arcuate path to keep the cutting flame aimed at the fixed point until the steel is cut.
A method of cutting steel billets from a continuous cast steel stand to reduce slag adherence to a cut edge of the billets, comprising steps of:
- commencing a cut at a first side of the steel strand;
- moving the cutting torch in an arcuate path shaped to continuously aim a cutting flame of the cutting torch at a bottom corner of the first side of the steel strand;
- and
- following the arcuate path to keep the cutting flame aimed at the bottom corner until the steel strand is cut to form the steel billet.
Dependencies are inferred from the claim text.