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US 5,616,425 AGranted
Beam blanks for direct rolling as-cast into finished products
AssigneeBethlehem Steel Corporation
InventorWilliam J. Wilde
Life of this patent
Estimating the term…
Abstract
Continuously cast beam blanks having an adjusted flange shaped to provide an (Aw/Af) ratio for direct rolling as-cast into an entire range of finish products in a family of structural shapes.
Claims18
An in-process structural shape being direct finished rolled from an as cast blank, comprising:
- a) a structural shape member having a first finished section and a second blank section;
- b) each of said sections has a flange portion with a cross sectional area Af;
- c) each of said sections has a web portion with a cross-sectional area Aw;
- and
- d) the ratio Aw/Af resulting from the web portion cross sectional area Aw being divided by the flange portion cross-sectional area Af is equal for each of said sections.
2 more elements
An in-process structural shape being direct finished rolled from an as cast blank, comprising:
- a) a finished section having at least one flange portion cross-sectional area (Af), a web cross-sectional arm (Aw) and a finished section ratio (Aw/Af) resulting from the web portion cross-sectional area (Aw) being divided by the flange portion cross-sectional area (Af);
- and
- b) a blank section having at least one flange portion cross-sectional area (Af), a web cross-sectional area (Aw) and a blank section ratio (Aw/Af) resulting from the web portion cross-sectional area (Aw) being divided by the flange portion cross-sectional area (Af), said blank section ratio (Aw/Af) being equal to said finished section ration (Aw/Af).
Dependencies are inferred from the claim text.