Immersion-type temperature measuring apparatus using thermocoupl

Details Immersion-type temperature measuring apparatus using thermocoupl Immersion-type temperature measuring apparatus using thermocoupl

1993-11-12

1994-11-01

Cuchlinski, Jr., William A.

Thermal measuring and testing

Temperature measurement

Of molten metal

374208, 136234, G01K 112

Patent

active

053602692

ABSTRACT:
An immersion-type temperature measuring apparatus using a thermocouple for measuring temperature of a melt, which comprises: a replaceable cartridge-type temperature sensor (11) for detecting a thermoelectromotive force corresponding to a temperature of a melt, the temperature sensor (11) comprising a thermocouple (13), a protecting tube (12) for protecting the thermocouple (13) from the melt, and a connector (16); a holder for releasably supporting the temperature sensor (11); a measuring instrument (28) for processing the thermoelectromotive force to determine the temperature of the melt; and an extension lead wire (25) for connecting the temperature sensor (11) with the measuring instrument (28). At least part of the above-mentioned protecting tube (12) is formed of a molybdenum-zirconia refractory consisting essentially of from 20 to 95 wt. % molybdenum and from 5 to 80 wt. % zirconia.

REFERENCES:
patent: 3106493 (1963-10-01), Japka
patent: 3232794 (1966-02-01), Korton
patent: 3661749 (1972-05-01), Richardson
patent: 4721533 (1988-01-01), Phillippi et al.
patent: 4746534 (1988-05-01), Phillippi et al.
patent: 4748915 (1988-06-01), Hastings et al.
patent: 4749416 (1988-06-01), Greenspan
Patent Abstracts of Japan; vol. 10, No. 53; (P-433) (2110); Mar. 4, 1986; & JP-A-60-198 423 (Kawasaki Seitetsu) Oct. 7, 1985.

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