Descaling of Medium C and High Si, Mn Steels

Abstract

Descaling of slabs exiting reheat furnaces prior to hot rolling is an important step to improve surface quality in the steelmaking process. An induction heating system with a controlled atmosphere that replicates the combustion atmosphere in a commercial slab reheat furnace was used to oxidize high-Si, Mn and medium-C steels. High-pressure water jet descaling was performed following scale formation using a laboratory setup that mimicked the industrial descaling process. Effects of nozzle impact factor (N/mm2) on scale removability for the different steels were investigated. The critical values of impact factor required for scale removal are discussed.

Meeting Name

AISTech 2021 -- The Iron & Steel Technology Conference and Exposition (2021: Jun. 29-Jul. 1, Nashville, TN)

Department(s)

Materials Science and Engineering

Research Center/Lab(s)

Peaslee Steel Manufacturing Research Center

Keywords and Phrases

Descaling; Oxidation; Reheating; Scale structure; Water jet impact factor

International Standard Book Number (ISBN)

978-193511793-3

International Standard Serial Number (ISSN)

1551-6997

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 Association for Iron & Steel Technology (AIST), All rights reserved.

Publication Date

01 Jul 2021

Link to Full Text

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