Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1976-04-22
1977-05-24
Woodiel, Donald O.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73355R, 164 4, G01K 100
Patent
active
040247643
ABSTRACT:
Strand surface temperature is measured accurately at multiple stations in spray cooling region of a continuous metal caster where environmental conditions are severe. Each station includes a pyrometer having a light pipe with a tip aimed at the strand and provided with both air and water wash streams. Control devices, operating in response to sequence timers, periodically resets measuring circuits, interrupts each strand cooling spray and light pipe wash water stream, and turns on the air wash stream, all during a short temperature sampling period. Selection of sampling period is governed by light pipe location, pyrometer response time, and strand reheat properties when spray is off. The peak temperature measured at each station is stored as the true strand temperature for that location. Thereafter strand and light pipe cooling are restored while the air wash is interrupted. Stored temperature signals may be recorded and analyzed to define caster operating parameters and cooling practices.
REFERENCES:
patent: 3478808 (1969-11-01), Adams
Gilles Herbert L.
Shipman Johnson
Bethlehem Steel Corporation
Dower George G.
Iverson John I.
O'Keefe Joseph J.
Woodiel Donald O.
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