Thermocouple
AssigneeIsuzu Ceramics Research Institute Co., Ltd.
InventorHideki Kita
Life of this patent
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Abstract
A thermocouple used to measure a temperature of molten metal having a melting point of not more than 1200° C. is such constructed that a pair of alloy stock wires (5) and (6) capable of being used In a temperature region not exceeding 1200° C. is embedded in a protective pipe 3 made of ceramic. A measuring contact (2) formed by the extreme ends of a pair of alloy stock wires (5) and (6) connected to each other is secured to the protective pipe (3) by a filler (4) of an inorganic compound such as heat resistant ceramic powder or dehydrated condensation glass.
Claims8
A thermocouple used to measure a temperature of molten metal having a melting point of not more than 1200° C., characterized in that a pair of alloy stock wires capable of being used in a temperature region not exceeding 1200° C. is embedded in a protective pipe made of ceramic, and a measuring contact having the extreme ends of a pair of alloy stock wires connected to each other is secured to said protective pipe by an inorganic compound such as heat resistant ceramic powder, and/or dehydrated condensation glass.
Dependencies are inferred from the claim text.