Method and apparatus for determining the cleanliness of metal

In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal...

Full description

Saved in:
Bibliographic Details
Main Authors SUZUKI, TOKIO, UEMORI, RYUJI, KONDO, HIROYUKI, TAKEUCHI, EIICHI, UMEZAWA, KAZUSHIGE, TOH, TAKEHIKO, FUCHIGAMI, KATSUHIRO, WAKOH, MASAMITSU, ONO, AKIHIRO, CHIBA, KOICHI
Format Patent
LanguageEnglish
French
German
Published 22.02.2012
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and analyzing by chemical or physical measurements, to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.
Bibliography:Application Number: EP20030016565