Probe and a system for detecting wear of refractory wall

Details Probe and a system for detecting wear of refractory wall Probe and a system for detecting wear of refractory wall

1982-03-01

1984-04-17

Swisher, S. Clement

Measuring and testing

Embrittlement or erosion

266 99, G01N 1700

Patent

active

044427069

ABSTRACT:
A probe for detecting wear of a refractory wall, including plural sheathed probe elements of different lengths each consisting of a pair of high melting point wires disposed in parallel and insulated from each other except at least the fore end portions of the wires which form a normally closed or normally open sensing point, a sheath enclosure accommodating the probe elements such that the sensing points of the respective probe elements are located at different positions along the length of the sheath enclosure and holding the probe elements in parallel relation and out of contact with each other, and a number of dummy elements formed of a material similar to the probe elements and connected to the fore ends thereof in a manner to complement the lengths of the shorter of the probe elements. There is also disclosed a detection circuit for monitoring wear of a refractory wall in a molten metal processing apparatus in a simple and accurate manner by the use of the probe.

REFERENCES:
patent: 3236096 (1966-02-01), Macatician et al.
patent: 3357237 (1967-12-01), Le Bel
patent: 3367175 (1968-02-01), Morreal et al.
patent: 3553577 (1971-01-01), Stromberg et al.
patent: 3610601 (1971-10-01), Bishop
patent: 4158806 (1979-06-01), Kotylev et al.
patent: 4248809 (1981-02-01), Sakai et al.
patent: 4358953 (1982-11-01), Horiuchi

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