Metal surface temperature measuring instrument
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHideo Kanamori, Katsumi Ichitani
Life of this patent
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Abstract
A metal surface temperature measuring device includes: a container to contain a coolant; a measurement target; a heater to heat the measurement target; a moving mechanism for moving the measurement target; and a thermometer to measure the surface temperature of the measurement target. A main body of the measurement target is formed of silver or copper, and a surface of the main body is coated with a thin film of pure iron or an iron alloy at a thickness of 1 to 100 μm. Further, at least the container, the heater, and the measurement target are disposed in a chamber of an inert gas atmosphere.
Claims4
A metal surface temperature measuring device comprising:
- a measurement target;
- a heater to heat the measurement target;
- a container to contain a coolant for cooling the measurement target that has been heated by the heater;
- and
- moving means for moving the measurement target between the heater and the container and putting the measurement target heated by the heater in the coolant,
- wherein in the measurement target a main body of the measurement target is formed of silver or copper, the whole periphery of the main body is coated with a thin film made of a metal having a low thermal conductivity, an insulating tube is provided such that the insulating tube penetrates the thin film and is positioned in the main body, a wire for a thermocouple is inserted into the main body via the insulating tube, and the thermocouple is formed of the wire and silver or copper.
Dependencies are inferred from the claim text.