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spray quenching

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Published: 01 September 2008
Fig. 32 Individual phases in induction heating and spray quenching in the workpiece surface layer and corresponding temperature-diameter diagrams. Source: Ref 15 , 27 More
Image
Published: 01 March 2000
Fig. 27 Special water-spray quench system for profiles. Source: Ref 14 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... to verify whether a quenchant can cool a workpiece fast enough to achieve martensitic transformation without cracking or distortion. induction heat treating quenchants quenching WHEN INDUCTION HARDENING, the workpieces are cooled by surrounding, spraying, or immersing the part in a quenchant...
Image
Published: 01 March 2006
Fig. 6 Induction hardening of a gear. The heating coils are surrounded by the spray quenching head. A thin surface layer of the gear will be heated, power turned off, and the spray turned on, resulting in a thin hard case. Source: Ref 1 More
Image
Published: 01 September 2008
Fig. 13 Gap-by-gap gear wheel induction surface heating by moving the induction coil for heating and moving or installing spray quenching More
Image
Published: 01 September 2008
Fig. 12 Tooth-by-tooth induction surface heating process of installing the induction coil around the gear wheel tooth for heating, followed by shifting spray quenching More
Image
Published: 01 August 2015
Fig. 5.24 Complex pattern of residual stresses forms in a carbon steel cylinder after induction heating and spray quenching. One of the goals of tempering is to relieve the subsurface tensile stresses that can cause cracking in service. Surface compressive stresses are beneficial. Stresses More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... polymer solution is used for spray quenching following flame heating. This is done for two reasons: spraying of oil presents a fire hazard, and the amount of water or polymer used can be closely controlled so that the workpiece is not fully quenched until it is completely cold. As mentioned in Chapter 2...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050335
EISBN: 978-1-62708-311-9
... THIS APPENDIX DISCUSSES the design of the actual quench devices or outlets and the design of cooling systems. Chapter 6, “Quenching,” in this book covers the basics of quenching theory, including the selection of quenchants, their temperature control, and applications. Quench outlets include spray-type quench...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260245
EISBN: 978-1-62708-336-2
...-spray quench. Improvements have also been made in developing multichamber die ovens to maintain each die at a precise temperature in a controlled atmosphere to improve expensive die life and to finally improve the surface finish of extrusion. Further improvements continue. Tooling and Die Technology...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.9781627084567
EISBN: 978-1-62708-456-7
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380235
EISBN: 978-1-62708-456-7
... below the lower critical temperature. liquid spray quench Same as spray quenching. localized precipitation Precipitation from a supersaturated solid solution similar to continuous precipitation, except that the precipitate particles form at preferred locations, such as along slip planes, grain...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... operation. The rate of heat extraction attributable to a quenching medium is greatly modified by the manner or condition in which the quenching medium is used. These modifications have resulted in assigning specific names to various quenching methods, such as direct, time, selective, spray, fog, gas, press...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440001
EISBN: 978-1-62708-262-4
... are inert gases, including helium, argon, and nitrogen. They are sometimes used after austenitizing in a vacuum. A number of other quenching media and methods are available, including fogs, sprays, quenching in dry dies, and fluidized beds. In addition, some processes, such as electron-beam hardening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050263
EISBN: 978-1-62708-311-9
..., are based upon immersion quenching. Polymer quenchants, as used for induction, generally involve the use of spray quenching. Spraying polymer on the surface of a workpiece being quenched tends to decrease the thickness of the polymer layer. Therefore, it is not unusual to need to test the range...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240395
EISBN: 978-1-62708-251-8
...-carbon steel with a carbon content of 0.35 to 0.50 wt% is usually selected. Initially, the part is hardened by conventional quenching and tempering to produce the desired core hardness. Sometimes, normalizing will produce the desired core hardness. The surface is then reheated into the austenitization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130417
EISBN: 978-1-62708-284-6
... to perform, contributing to short surface-hardening times. In progressive induction hardening, a spray coil is located directly below the inductor and quenches the heated surface. In single-shot hardening, the inductor is designed to perform the function of heating as well as quenching. The coil around...
Image
Published: 01 June 1988
Fig. 8.30 Double-chamber coil for use in induction scanning; perforations are for quench spray from the quench chamber Source: American Induction Heating Corp. More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380085
EISBN: 978-1-62708-456-7
... by introducing a water spray or other suitable quenching fluid through the spaces between the inductor coil or by dropping the workpiece from its heating position in the coil into a quenching tank. The depth of hardness penetration is controlled by the power input, frequency used, and time in the inductor...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050001
EISBN: 978-1-62708-311-9
... company. A 20 kW induction heater was used with a remotely mounted transformer. The transformer was indexed into the tooth for tooth-by-tooth hardening. After austenitizing when the transformer and coil quickly moved back, the gear was indexed into an oil spray quench. An entire tooth was skipped during...