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ASM Handbook

Steel Heat Treating Technologies

Edited by
Jon L. Dossett
Jon L. Dossett
Consultant
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George E. Totten
George E. Totten
Portland State University
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ASM International
Volume
4B
ISBN electronic:
978-1-62708-166-5
Publication date:
2014
Book Chapter

Temperature Control in Heat Treating[1]

By
Peter Sherwin
Peter Sherwin
Invensys Eurotherm
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Published:
2014
Page range:
152 - 169
Publication history
August 31, 2014

Abstract

Temperature control in heat treating is of paramount importance in maintaining the quality and achieving the desired metallurgical results. This article provides a detailed account of the factors affecting temperature control in heat treating furnaces, with information on temperature control systems, including contact sensors, noncontact sensors, controllers, energy-flow regulators, measurement instruments, and set-point programmers. Common contact sensors include temperature scales, thermocouples, and resistance temperature detectors, whereas optical pyrometers and on-line radiation thermometers fall under the noncontact type. The article describes two types of instrumentation used in heat treating: field test instruments for temperature-uniformity surveys and system-accuracy tests; and controlling, monitoring, and recording instruments for digital instrumentation.

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Peter Sherwin, 2014. "Temperature Control in Heat Treating", Steel Heat Treating Technologies, Jon L. Dossett, George E. Totten

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