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US 5,195,573 AGranted
Continuous rail production
AssigneeCF&I Steel, L.P.
InventorsRobert L. Cryderman, John C. Winkley
Life of this patent
Estimating the term…
Abstract
A superior unitary one quarter mile long railroad rail and system and method for manufacturing the same. The method of manufacture is characterized by the use of a continuous rolling process and the in-line controlled cooling of the rail. The long railroad rail is rolled in a single direction with a plurality of in-line rolling stations.
Claims9
A method for manufacturing a railroad rail at least 500 feet long and free of welds, comprising:
- forming a bloom by continuously casting, reheating said bloom to a temperature that is consistent along its length and maintaining said temperature so that the first rolling station rolls the bloom at a constant temperature along its length, and continuously rolling said bloom in a single direction with a plurality of in-line rolling stations to form said rail.
A method of building railroad track, comprising:
- continuously casting a steel bloom, continuously rolling a steel shape from said bloom to a substantially complete rail that is at least 500 feet long and substantially free of weld seams using a plurality of in-line rolling stations so that the steel shape passes each rolling station no more than once, transporting said at least 500 foot rails to a rail bed, and attaching said at least 500 foot rails end-to-end in two parallel strands to produce a railroad track.
Dependencies are inferred from the claim text.