BOUNDARY POSITION DETECTION METHOD, BOUNDARY POSITION DETECTION SYSTEM AND DATA MEASUREMENT PROBE USED IN BOUNDARY POSITION DETECTION SYSTEM

PROBLEM TO BE SOLVED: To provide a technique capable of surely measuring a molten steel temperature, a coagulation temperature and a sample property, etc., for instance by accurately and surely detecting respective boundary position and thus accurately controlling an immersion depth to a molten meta...

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Bibliographische Detailangaben
Hauptverfasser:	IWAMURA HIROSHI, OKAMOTO HIROKI, HANAZAKI KAZUHARU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES HEATING KILNS LIGHTING MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON METERING BY VOLUME OVENS PHYSICS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TESTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a technique capable of surely measuring a molten steel temperature, a coagulation temperature and a sample property, etc., for instance by accurately and surely detecting respective boundary position and thus accurately controlling an immersion depth to a molten metal layer.SOLUTION: A boundary position detection system comprises: a metal electrode 20 provided movably over a molten metal layer L, a slug layer B and an atmospheric layer A; and a computer 5 that functions as arithmetic means for obtaining a frequency distribution by frequency-analyzing electrode voltage signals in a prescribed cycle, and detection means for detecting positions of respective boundaries Ls and Bs by a change of intensity of a commercial power source frequency (for instance, in Japan, eastern Japan region 50 Hz/western Japan region 60 Hz) of an installation region of a molten metal container C in each frequency distribution obtained by the arithmetic means.