Patent · US Expired

Method of producing round billets

US6491771B1 · kind B1 · utility

2Cited by

1References

8Claims

0Family size

Assignee

SMS DEMAG LLC · DE

Inventors

Ingo von Hagen · Krefeld, DE
Harald Wehage · Ilsenburg, DE
Uwe Quitmann · Willich, DE
Walter Weischedel · Meerbusch, DE

Key dates

Filing date	Aug 3, 2001
Grant date	Dec 10, 2002
Priority date	—
Expiry date	Aug 3, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D11/12
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process and device for the production of continuously cast billets in a production plant employs a vertical, round strand-casting machine with horizontal run-out, at least one descaling device, and several following roll stands. For the production of round billets with diameters in the range of 90-300 mm, after the solidifying round billet has left the mold but before it has entered the following rolling unit, its surface is descaled and the area near the surface is cooled in defined manner to a temperature which is optimum for the grade of steel in question before the round billet is worked, first over the course of at least three successive horizontal passes then in a vertical pass, the surface of the preworked billet being descaled again before the last pass.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.