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The Concept of the Liquid Sampling and Hot Rolling Method for Determination of Macro Inclusion Characteristics in Steel
Author(s) -
Hansén Thorbjörn,
Jönsson Pär,
Lundberg SvenErik,
Törresvoll Ketil
Publication year - 2006
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.200606372
Subject(s) - tundish , steelmaking , ladle , liquid steel , macro , metallurgy , inclusion (mineral) , materials science , continuous casting , computer science , mineralogy , chemistry , programming language
A novel method for determination of semi‐macro and macro size distributions of inclusions in steel from samples in ladle, tundish and mould has been developed. The samples are worked and surface treated before inspection. Mainly immersed ultrasonic scanning is performed to determine the semi‐macro and macro inclusion content. The LSHR method has been tested in several different steel plants and for different steel grades. It is concluded that new information regarding large inclusions during steelmaking can be obtained using the method.