Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1979-05-09
1981-01-06
Andrews, R. L.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148156, 148153, 432 8, 432 12, 432 24, C21D 126
Patent
active
042434416
ABSTRACT:
Method and apparatus are disclosed for accurately controlling the temperature of a moving metal strip in a continuous heat treating operation. A plurality of temperature sensors are located at fixed intervals along the path of the metal strip through the heat treating apparatus, e.g., the cooling tunnel following an annealing oven, employed to control the application or extraction of heat and thereby the rate of temperature change of the strip. Errors in sensor readings are compensated by secondary averaging of adjacent temperature differential measurements to provide a more accurate temperature control.
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Andrews R. L.
National Steel Corporation
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