Effect Of Water Jet Nozzle Lead Angle On Descaling Efficiency

Abstract

Nozzle design, water pressure, and lead angle are critical for efficient descaling. In the industry, scale removal through water jet descaling using a nozzle lead angle of 15° is considered as optimal. However, variations in scale removal efficiency were not quantified. Experiments were performed using a laboratory CNC-controlled descaling system. Low- alloy steel plates were reheated at 1065°C in an atmosphere-controlled induction furnace and then descaled using two nozzle types and three attack angles in all cases. Statistical characterization of residual oxide coverage was performed using SEM analysis in a cross-section of the plate. Recommendations to increase descaling efficiency are presented.

Department(s)

Materials Science and Engineering

Research Center/Lab(s)

Peaslee Steel Manufacturing Research Center

Keywords and Phrases

Attack-angle; Descaling; Nozzles; Oxides; SEM

International Standard Book Number (ISBN)

978-093076721-1

International Standard Serial Number (ISSN)

1551-6997

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Association for Iron and Steel Technology, All rights reserved.

Publication Date

01 Jan 2023

Link to Full Text

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