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liquid quenchants

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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
... for polyalkalene glycol (PAG) polymer quenchant compared to oil quenchants. Source: Ref 12.25 There are problems with both oil and polymer quenchants related to aging of the bath. Immersion of very hot steel can lead to oxidation of the liquid components, and the continual removal of the steel pieces can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440001
EISBN: 978-1-62708-262-4
... depends on the hardenability of the steel, the section thickness and shape involved, and the cooling rates needed to get the desired microstructure. Typically, quenchants are liquids or gases. Common liquid quenchants are: Oil that may contain a variety of additives Water Aqueous polymer...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310055
EISBN: 978-1-62708-326-3
... to remain relatively unaffected by the quenching medium. This can be accomplished by insulating the area to be protected or by allowing the quenchant to contact only those areas of the part that are to be quenched. Spray quenching: Streams of quenching liquid are directed at high pressure, up to 825...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240177
EISBN: 978-1-62708-251-8
... extraction rates are achieved that are associated with nucleate boiling of the quenchant on the metal surface. Heat is rapidly removed from the surface as liquid quenchant contacts the metal surface and is vaporized. The liquid cooling stage begins when the temperature of the metal surface is reduced below...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130255
EISBN: 978-1-62708-284-6
... International , 1997 , p 423 – 441 30. Owaku S. , Quench Distortion of Steel Parts , Netsu Shori (J. Jpn. Soc. Heat Treat. ), Vol 32 ( No. 4 ), 1992 , p 198 – 202 31. Von Bergen R.T. , The Effects of Quenchant Media Selection on the Distortion of Engineered Steel Parts...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... from the surface as liquid quenchant contacts the metal surface and is vaporized. The liquid cooling stage begins when the temperature of the metal surface is reduced below the boiling point of the quenching liquid. Below this temperature, boiling stops and cooling takes place by conduction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... involves austenitizing thin sections of steel and then quenching them in a liquid quench bath held at the desired isothermal temperature. Because the steel is thin, it will cool to the quench bath temperature throughout its volume before any of the austenite has decomposed. The steel is held in the molten...
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
... Abstract This chapter discusses the quenching process and its adaptation to induction heat treating. It describes the three stages of quenching, the cooling characteristics of various types of quenchants, and the details of nearly a dozen compatible quenching methods. It also explains how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
... transferred in the form of heat to the cooling water. Except for small radiation losses and residual heat left after quenching, even the heat produced in the workpiece is absorbed by the quenchant, which in turn needs to be cooled through a heat exchanger. If the heat input into the workpiece is 50 kW...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500317
EISBN: 978-1-62708-317-1
...; and liquid quenchant, such as water or oil. Additional tempers can be performed. Because only a small case depth (thickness) is heated, surface hardening takes much less time than through hardening ( Ref 16.38 , 16.39 ). In flame hardening, heating is applied by an oxyfuel torch, followed by immediate...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... transforming to pearlite. This condition is illustrated in Fig. 2(a) , where, for that particular grade of steel, the first transformation to pearlite takes place at approximately 760 °C (1400 °F) after approximately 15 minutes. With steels of this type, rapid cooling in liquid quenchants to avoid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130177
EISBN: 978-1-62708-284-6
... 10.31399/asm.hb.v11.a0003510 34. Boyer H.E. , Ed., Chapter 4—Liquid Case-Hardening Methods , Case Hardening of Steel , ASM International , 1987 , p 103 – 140 35. Totten G.E. , Przylecka M. , and Gestwa W. , Use of Aqueous Polymer Quenchants for Hardening...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220273
EISBN: 978-1-62708-259-4
... . ASM International, 1998 36. DeCanale L.C.F. , Totten G.E. , Blackwood R.R. , Jarvis L.M. , and Hoffman D.G. , An overwiew of non-quench related problems often attributed to the quenchant and quenching process , In: 59 Congresso Anual da Associação Brasileira de...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... is relatively large, liquid quenching is not required to develop full hardness. Air blast cooling may achieve the same effects. Almost any new flame-hardening operation requires developmental work (cut and try) to arrive at the optimum procedure for a specific workpiece. Past experience with similar...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050245
EISBN: 978-1-62708-311-9
... that the information being supplied from them is accurate, timely, and germane. One of the greatest problems of nondestructive inspection has been misapplication, which usually means that the wrong information was supplied. Louis Cartz, in the ASM book Nondestructive Testing ( Ref 4 ), cites that liquid penetrant...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770077
EISBN: 978-1-62708-337-9
... is from 450 to 200 °C, whereas a high-carbon material typical of a case-hardened surface has a martensite transformation range from 200 °C down to about –100 °C. If, on quenching, part of the martensite transformation range lies below the temperature of the quenchant, the transformation of austenite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
..., with the hot pin then placed into the centers. The pin is rotated and quenched uniformly with a polymer quenchant. During quenching the gantry moves back to pick up the next hot pin and deposits the quenched pin on a ramp for acceptance into the tempering furnace. After leaving the tempering furnace, the pins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410335
EISBN: 978-1-62708-265-5
... Liquids , Trans. AIME , Vol 62 , 1920 , p 665 16.21 Melloy G.F. , Hardness and Hardenability , Harvey P.D. , Ed., Metals Engineering Institute , Metals Park, OH , 1977 16.22 Grossmann M.A. and Asimov M. , Hardenability and Quenching , Iron Age , Vol 145...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... a perfect homogeneous product include: Fast shrinkage as the molten metal cools (roughly 5% in volume for steel) Gaseous products that are trapped by the solidifying metal as they try to escape from the liquid and semisolid metal Small crevices in the mold walls, which cause the metal to tear...