METHOD FOR MEASURING THICKNESS OF REFRACTORIES IN FURNACE

PROBLEM TO BE SOLVED: To provide a method for precisely measuring the thickness of refrac tory bricks in a furnace from the outside of the furnace using ultrasonic wave. SOLUTION: A ultrasonic wave is transmitted from on the outside of the furnace toward the refractories in the inner part, and the d...

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Bibliographic Details
Main Authors MORITA SHIGETOSHI, TANAKA HIROYUKI, KOMINAMI HIDETAKA
Format Patent
LanguageEnglish
Published 26.10.2001
Edition7
Subjects
CHEMISTRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MANUFACTURE OF IRON OR STEEL
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
METALLURGY
METALLURGY OF IRON
PHYSICS
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TESTING
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Summary:PROBLEM TO BE SOLVED: To provide a method for precisely measuring the thickness of refrac tory bricks in a furnace from the outside of the furnace using ultrasonic wave. SOLUTION: A ultrasonic wave is transmitted from on the outside of the furnace toward the refractories in the inner part, and the detecting time of refractory signal from the inside surface of the refractory, is calculated with the variation with time of a specific frequency component decided with a material constituting the furnace surface to measure the thickness of the refractory.
Bibliography:Application Number: JP20000112328