Method of spectroscopically determining the composition of molten iron
AssigneeNippon Steel Corporation
InventorsKoichi Chiba, Akihiro Ono, Takamasa Ohno, Masaki Okajima, Hiroshi Yamane, Minoru Hayata
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Abstract
Oxygen or a mixed gas containing oxygen, or a chemical flame produced by a mixture of a combustion gas and a combustion-assisting gas containing oxygen, is blown against the surface of molten iron to cause radiation emission. The radiations are divided into components of different wavelengths, and the resulting emission spectra are measured to determine the composition of the molten iron.
Claims9
A method of spectroscopically determining the composition of molten iron which comprises the steps of producing a hot spot by blowing oxygen or an oxygen-containing mixed gas against the surface of the molten iron and measuring the spectra of radiations emitted from the hot spot.
A method of spectroscopically determining the composition of molten iron which comprises the steps of heating a localized area in the surface of molten iron with a chemical flame blown thereagainst, the chemical flame being produced by a mixture of a combustion gas and a combustion-assisting gas, and measuring the spectra of radiations emitted from the locally heated area.
Dependencies are inferred from the claim text.