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thermocouple wires

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Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003158
EISBN: 978-1-62708-199-3
...-molybdenum, platinel, and tungsten-rhenium thermocouples. This article discusses the basic principles, classification, and properties of thermocouples, and the techniques for insulating and protecting thermocouple wires from the operating environment. electrical insulation environmental protection...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006283
EISBN: 978-1-62708-169-6
... for creating preferential grain orientations with isotropic mechanical properties. It includes warm/cold deformation processes such as forging, rolling, extrusion, and wire and tube drawing. Most thermomechanical processing is done to minimize texture effects. The heat treatment method incorporated...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005925
EISBN: 978-1-62708-166-5
... prepared new tables of thermocouple electromotive force (emf) values ( Ref 5 ) for ITS-90. Of the various sensors used to measure temperature in heat treating furnaces, the most common is thermocouples. Thermocouples consist of two dissimilar wires joined at one end, forming a measuring, or hot, junction...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005931
EISBN: 978-1-62708-166-5
... monitoring and control of motion and position of various mechanical components with the help of mechanical limit switches, proximity sensors, and distance- and position-measuring devices. Using inputs from both flow meters and sensors, such as thermocouples and oxygen sensors, flow measurement control...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003239
EISBN: 978-1-62708-199-3
... inspection devices include bolometers, thermocouples, thermopiles, and meltable substances, whereas radiometers and pyrometers come under the noncontact category. contact thermographic inspection contact thermometric inspection noncontact thermographic inspection noncontact thermometric inspection...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005922
EISBN: 978-1-62708-166-5
... transformation on heating and/or cooling. To investigate the cooling characteristics and the transformation behavior of the steel to be tested, a steel wire probe was designed ( Ref 16 ) with a built-in thermocouple located at the geometric center, as shown in Fig. 1 . When the wire probe was quenched from...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003015
EISBN: 978-1-62708-200-6
... extrusion, chill-roll film extrusion, pipe or tube extrusion, wire and cable coverings, extrusion coating, and profile extrusion, and provides some discussion on multiple-screw extruders. The article describes the dimensional accuracy of extrusion products, and lists common defects that occur frequently in...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005928
EISBN: 978-1-62708-166-5
..., chromatographs, oxygen probes, Orsat analyzers, infrared analyzers, dewpoint analyzers, and hot-wire analyzers. Finally, it discusses the advantages, disadvantages, and limitations of these analyzers. atmosphere control carbon potential dew point gas chromatography heat treating furnaces heat...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005968
EISBN: 978-1-62708-166-5
...? Care must be taken to ensure that thermocouple wire size and type are appropriate for their intended use and are not used outside of their recommended upper temperature limit. Guidance on these limitations can be found in current revisions of publications such as ASTM E 230 ( Table 4 , Ref 15 ), ASTM...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003151
EISBN: 978-1-62708-199-3
... temperature (DBTT) for the material. The most common alloys contain 5, 41, and 50% (actually 47.5%) Re. The 5Re and 41Re alloys are used for thermocouple wire and for structural applications in the aerospace market. The W-50Re alloy is typically specified for high-temperature structural components. One...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005423
EISBN: 978-1-62708-196-2
... minimize error in the temperature measurement and variability in the casting trials. Once thermocouple data are collected, the calibration-curve method is a simple, robust method for determining values of h ( T ) from thermocouple data for different interface types. The process of collecting T ( t...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006259
EISBN: 978-1-62708-169-6
... devices Pt-5%Ru 1000 1830 Air, preferably nitrogen or argon Not necessary Jewelry Pt-6%Rh, Pt-10%Rh, Pt-13%Rh 800–1000 1470–1830 Air, preferably nitrogen or argon Not necessary Thermocouple wire Pt-20%Rh 1000–1150 1830–2100 Air, preferably nitrogen or argon Preferred, to maintain...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003199
EISBN: 978-1-62708-199-3
... periodically to ensure that they are in good working condition. Thermocouples consist of two dissimilar wires that are metallurgically homogeneous. They are joined at one end, called the measuring, or hot, junction. The other end, which is connected to the copper wire of the measuring instrument...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005436
EISBN: 978-1-62708-196-2
... a specific quench tank? Will the number and placement of the thermocouples influence the conditions of flow within the quench tank and act as a “trip wire,” causing early nucleate boiling initiation? Many of these issues are practical ones, such as the availability of a limited number of...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009010
EISBN: 978-1-62708-185-6
... the specimen according to a programmed cycle. Therefore, a specimen can be tested under time and temperature conditions that simulate hot-working sequences. Fig. 1 Gleeble test unit used for hot-tension and hot-compression testing. (a) Specimen in grips showing attached thermocouple wires and...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... tension and compression testing. (a) Specimen in grips showing attached thermocouple wires and liner variable differential transformer for measuring strain. (b) Closeup of a compression test specimen. Courtesy of Dynamics Systems, Inc. The specimen is loaded by a pneumatic-hydraulic system. The load...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006674
EISBN: 978-1-62708-213-6
... ferromagnetic core inside the LVDT conductive coil generates an electric signal by Faraday’s law of induction that is calibrated to microscopic displacement. A thermocouple parallel to the pushrod reports the temperature of the specimen. Water cooling is often used to maintain the LVDT at a reference...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003150
EISBN: 978-1-62708-199-3
... with a purity of at least 99.9% is required for alloying, laboratory ware, and contacts. Platinum of even higher purity, sometimes with controlled impurities, is used for other specialized applications such as thermocouples and resistance thermometers. The present U.S. thermometric standard platinum...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005955
EISBN: 978-1-62708-166-5
... temperature measurement is normally accomplished with thermocouples located in the vicinity of the heating elements. Usually a minimum of two thermocouples are employed, one for the furnace control and a second for over-temperature protection. In practice, the size of the hot zone may dictate multiple zone...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003156
EISBN: 978-1-62708-199-3
... thermoelectric potential versus copper, which is the material normally used for the connecting conductor. Temperature differentials may exist among various junctions between a resistance wire and a connecting wire, resulting in a network of thermocouples that can cause parasitic electromotive forces in the...