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thermocouples

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
...Abstract Abstract Temperature is a critical process parameter in the heat treatment and forging of steel and must be accurately measured to properly control it. This appendix discusses the operating principles of thermocouples and infrared pyrometers, describing the various types as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
..., corrosion-resistance alloys, superalloys, refractory metals, low-melting-point metals, reactive metals, precious metals, rare earth metals, and metalloids or semimetals. It also provides a brief summary on special-purpose materials, including uranium, vanadium, magnetic alloys, and thermocouple materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440085
EISBN: 978-1-62708-262-4
...) Thermocouples Temperature Measurement Temperature Control Noncontact Temperature Instruments The purpose of atmosphere control is to maintain consistent levels of the various atmosphere constituents and to determine whether changes in those levels are required in order to produce a desired result...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220143
EISBN: 978-1-62708-341-6
...Extension wires for common thermocouples. Table 7.1 Extension wires for common thermocouples. From Manual on the Use of Thermocouples in Temperature Measurement , ASTM STP 470, R. P. Benedict, ed., American Society for Testing and Materials, Philadelphia, 1970 ( Ref 2 ) Thermocouple...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
.... ASME, J. Eng. Ind. , Vol 109A , Aug 1987 , p 49 – 57 . 10.1115/1.3187094 [SFTC, 2002] Scientific Forming Technologies Corporation , DEFORM 7.2 User Manual , Columbus, OH , 2002 . [Vigor et al., 1961] Vigor C.W. , Hornaday J.W. , “ A Thermocouple for Measurement...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... to provide accurate temperature measurements. These probes are subjected to high temperatures, constant oxidation, and subsequent tip wear. Other issues affecting the accuracy of the probe-type thermocouples surface when the probe is not properly seated on the billet surface (both induction- and gas-fired...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
.... In all cases, an ample number of thermocouples should be strategically placed so that the hottest and coldest areas are monitored. The cure temperature should be governed by the hottest thermocouple, and the cure time should be governed by the lagging or coldest thermocouple. After the patch has been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410215
EISBN: 978-1-62708-280-8
..., reaches face core control thermocouple 13 … … 15 Start side core chills cooling (air + water) 2000 40 Start sprue air cooling 250 50 Stop side core chills cooling (air + water) … 51 Start side core chills air cooling 250 100 Start hub and spreader air cooling 250 165 Stop...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140009
EISBN: 978-1-62708-264-8
... of 1018 steel and a thermocouple secured in the hole. The output of the thermocouple was measured with a digital voltmeter every 2 s and sent to a computer, where it was converted to a file of temperature versus time. The sample was placed in a small resistance furnace and heated to 870 °C (1600 °F...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... where the length is at least four times the diameter (a so-called infinite cylinder that minimizes end-cooling effects). Cooling curves are generated by inserting thermocouples into the desired locations of the test specimens. Two common thermocouple configurations are test probes with thermocouples...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250047
EISBN: 978-1-62708-287-7
... thereafter, a new technique for measuring high temperatures was developed by Henri Le Chatelier of France with the use of platinum-platinum/rhodium thermocouples. Osmond, who worked with Le Chatelier for many years at the Sorbonne, immediately put the new thermocouple to use in measuring the so-called...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... position for each batch. The same production autoclave was used for all three batches. After the tools were vacuum bagged and leak checked, they were nested in the autoclave using the positions shown in Fig. 4.9 to 4.11 . Additional thermocouples were then placed above the tool surfaces to measure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110196
EISBN: 978-1-62708-247-1
... by temperature gradients at junctions composed of two different materials (e.g. aluminum-tungsten) [10] . The Seebeck voltage induced when one side of a thermocouple is heated is given by: (4) Δ V = ( Q 1 − Q 2 ) Δ T = Q 1 − 2 Δ T where Q 1 , Q 2 are the respective...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140117
EISBN: 978-1-62708-264-8
... Treat. Met. , Vol 12 , 1986 . 2 , p 34 – 38 12.27. Foreman R.W. , Salt Bath Quenching , Conf. Proc. Quenching and Distortion Control , Totten G.E. , Ed., ASM International , 1992 , p 87 – 94 By inserting a thermocouple into a piece of steel, one can measure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080359
EISBN: 978-1-62708-304-1
... cladding in coextruded floor tubes. In many boilers, cracking had occurred within 2 m of the rear (spout) wall. Keiser et al. ( Ref 22 ) installed 25 thermocouples on the floor and recorded the temperature spikes over a 6-month period, showing an average of about one thermal spike per thermocouple per day...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420239
EISBN: 978-1-62708-310-2
... of construction that have been derived by thermodynamic reasoning. If violations of these rules are encountered, it may be concluded with assurance that the experimental observations or their interpretation are at fault. Cooling curves using simple thermocouple arrangements or other pyrometric methods were...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170308
EISBN: 978-1-62708-297-6
... cold-working reduction steps. Primary working is done by rolling, swaging, or forging. Platinum-rhenium reforming catalysts are the major rhenium end-use products and account for about 85% of rhenium consumption. Rhenium is also used for heating elements, electrical contacts, thermocouples...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... loaded with bulky castings that alter the heat transfer pattern and interfere with air circulation, may suffer serious impairment in the uniformity of temperature distribution. When the furnace control thermocouple reaches the desired temperature without adequate heat distribution, castings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820077
EISBN: 978-1-62708-339-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780343
EISBN: 978-1-62708-281-5
..., with the thermocouple sensors below the pans. Differential scanning calorimetry measurements can be made in two ways: by measuring the electrical energy provided to heaters below the pans necessary to maintain the two pans at the same temperature (power compensation), or by measuring the heat flow (differential...