Variable flange beam blank and method of continuous casting
AssigneeBethlehem Steel Corporation
InventorWilliam J. Wilde
Life of this patent
Estimating the term…
Abstract
A method of continuously casting a variable flange beam blank for direct rolling as-cast into any finished beam within a beam family without the need for altering the as-cast geometry in a breakdown stand, roughing stand, or the like, prior to the direct finish rolling. The method includes a consideration of the cross-sectional areas of both the flange and the web of the beam.
Claims15
A method of continuously casting a beam blank for direct finish rolling as-cast into any finished beam size within a beam family, the steps of the method comprising:
- a) providing a caster mold having;
- i) adjustable end walls,
- ii) a web opening extending through said caster mold, said web opening including a fixed cross-sectional area (Aw) within said caster mold, and
- iii) at least one flange opening extending through said caster mold, said flange opening adjacent said web opening and including a variable cross-sectional area (Af) within said caster mold,
- b) adjusting at least one end wall toward or away from said web opening to vary said cross-sectional area (Af) and provide an (Aw/Af) ratio equal to an (Aw/Af) ratio of a finished beam within said beam family,
- c) pouring liquid steel into said web opening and said flange opening extending through said caster mold,
- d) casting said beam blank, and
- e) rolling a finished beam having an (Aw/Af) equal to said (Aw/Af) ratio of said caster mold.
A method of continuously casting a beam blank for direct finish rolling as-cast into any finished beam size within a beam family, the steps of the method comprising:
- a) providing a caster mold having;
- i) adjustable end walls,
- ii) a web opening extending through said caster mold, said web opening including a fixed cross-sectional area (Aw) within said caster mold, and
- iii) at least one flange opening extending through said caster mold, said flange opening adjacent said web opening and including a variable cross-sectional area (Af) within said caster mold,
- b) pouring liquid steel into said web opening and said flange opening extending through said caster mold,
- c) adjusting at least one end wail toward or away from said web opening to vary said cross-sectional area (Af) and provide an (Aw/Af) ratio equal to an (Aw/Af) ratio of a finished beam within said beam family,
- d) casting said beam blank, and
- e) rolling a finished beam having an (Aw/Af) equal to said (Aw/Af) ratio of said caster mold.
A method of continuously casting a beam blank for direct finish rolling as-cast into any finished beam size within a beam family, the steps of the method comprising:
- a) providing a caster mold having;
- i) adjustable end walls,
- ii) a web opening extending through said caster mold, said web opening including a fixed cross-sectional area (Aw) within said caster mold, and
- iii) two flange openings extending through said caster mold, each said flange opening adjacent said web opening and each flange opening including a variable cross-sectional area (Af) within said caster mold,
- b) adjusting said end walls toward or away from said web opening to vary each said cross-sectional area (Af) and provide an (Aw/Af) ratio equal to an (Aw/Af) ratio of a finished beam within said beam family,
- c) pouring liquid steel into said web opening and said flange openings extending through said caster mold,
- d) casting said beam blank, and
- e) rolling a finished beam having an (Aw/Af) equal to said (Aw/Af) ratio of said caster mold.
A method of continuously casting a beam blank for direct finish rolling as-cast into any finished beam size within a beam family, the steps of the method comprising:
- a) providing a caster mold having;
- i) adjustable end walls,
- ii) a web opening extending through said caster mold, said web opening including a fixed cross-sectional area (Aw) within said caster mold, and
- iii) two flange openings extending through said caster mold, each said flange opening adjacent said web opening and each flange opening including a variable cross-sectional area (Af) within said caster mold,
- b) pouring liquid steel into said web opening and said flange openings extending through said caster mold,
- c) adjusting said end walls toward or away from said web opening to vary each said cross-sectional area (Af) and provide an (Aw/Af) ratio equal to an (Aw/Af) ratio of a finished beam within said beam family,
- d) casting said beam blank, and
- e) rolling a finished beam having an (Aw/Af) equal to said (Aw/Af) ratio of said caster mold.
Dependencies are inferred from the claim text.