Patent · US Expired

Method of improving the surface quality of a continuously cast slab

US6216770A · kind A · utility

4Cited by

2References

10Claims

0Family size

Assignees

SMS Schloemann-Siemag Aktiengesellschaft · DE
ACME Metals Incorporated · US

Inventors

Karl-Ernst Hensger · Schkeuditz, DE
Manfred Kolakowski · Erkrath, DE
Ingo Schuster · Willich, DE
David J. Rintoul · Orland Park, US

Key dates

Filing date	Nov 6, 1998
Grant date	Apr 17, 2001
Priority date	—
Expiry date	Nov 6, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/45
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method of improving the surface quality of a continuously cast slab, particularly a thin slab having a maximum cast thickness of 100 mm, wherein the slab is covered with a casting slag film and a layer of scale, and wherein the slab is descaled after casting and is rolled in a finishing train. A reaction agent, which is different from water, is applied onto the slab prior to descaling or during descaling. The application of the reaction agent may be preceded by a conventional hydraulic, mechanical or pneumatic removal of the layer of scale which covers the slab.

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