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Book Chapter

By Weimin Gao, Lingxue Kong, Peter Hodgson
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005794
EISBN: 978-1-62708-165-8
... Abstract The fluidized bed provides a means for exchanging heat between a metal part, the solid particles, and the fluidizing gas and which is viable for quenching. This article briefly considers the design aspects of the gas distributor, plenum, container, immersed cooling tubes and surface...
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Published: 01 August 2013
Fig. 13 Cooling curves for fluidized-bed quenching of a 430 kg (946 lb) H13 hot-work steel die casting tool. T/C, thermocouple. Source Ref 3 More
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Published: 01 February 2024
Fig. 49 Typical data from fluidized-bed quenching experiment. U mff , minimum fluid flow rate More
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Published: 01 February 2024
Fig. 56 Cooling curves for fluidized-bed quenching of a 430 kg (946 lb) H13 hot work steel die casting tool. T/C, thermocouple More
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0007014
EISBN: 978-1-62708-450-5
... heat-transfer rates for various quench media Table 1 Comparison of typical heat-transfer rates for various quench media Quenching medium Heat-transfer rate, W/m 2 · K Still air 50–80 Nitrogen, 1 bar 100–150 Salt bath or fluidized bed 350–500 Nitrogen, 10 bar 400–500...
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Published: 01 August 2013
Fig. 1 Schematic representation of quenching fluidized bed More
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Published: 01 August 2013
Fig. 4 Guide to the range of heat-transfer coefficients for various quench media against fluidized-bed quenching. Source: Ref 2 More
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Published: 30 November 2018
Fig. 27 Comparison of heat-transfer coefficient for water, forced-air, and fluidized-bed quenching More
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Published: 01 June 2016
Fig. 34 Comparison of heat-transfer coefficient for water, forced-air, and fluidized-bed quenching More
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005927
EISBN: 978-1-62708-166-5
..., are also discussed. Finally, the article reviews the principles and applications of fluidized-bed heat treatment. carbonitriding carburizing decarburization fluidized-bed furnaces fluidized-bed quenching gas-fluidized beds hardening heat treatment heat-transfer coefficient nitriding...
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Published: 01 August 2013
Fig. 14 Three-zone fluidized-bed arrangement and quench-temperature ranges. Source Ref 12 More
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Published: 01 February 2024
Fig. 57 Three-zone, fluidized-bed arrangement and quench temperature ranges More
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005958
EISBN: 978-1-62708-168-9
... Abstract This article provides a detailed discussion on the heating equipment used for austenitizing, quenching, and tempering tool steels. These include salt bath furnaces, controlled atmosphere furnaces, fluidized-bed furnaces, and vacuum furnaces. The article discusses the types of nitriding...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003198
EISBN: 978-1-62708-199-3
... of Fluidized-Bed Furnaces Applications of fluidized-bed furnaces to heat treatment of metals include continuous units for all types of wire and strip processing (such as patenting, austenitizing, annealing, tempering, and quenching); continuous rotary types for fasteners, bearings and other small parts...
Book Chapter

By Sujoy Krishna Chaudhury
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005230
EISBN: 978-1-62708-187-0
... to avoid distortion and excessive residual stress. This can be achieved by using water at temperatures between 70 and 85 °C (160 and 185 °F), boiling water, polyalkylene glycol, fluidized beds, forced air, and so on. The most common approach is to add polyalkylene glycol to the quench medium in varying...
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Published: 01 August 2013
Fig. 5 Cooling curve measured at the centerline of an AISI 4140 cylindrical probe quenched in a fluidized bed (alumina plus air at room temperature) and with a fluidization number of 1.4. Source Ref 31 More
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Published: 01 December 2009
Fig. 38 Measured and calculated temperature history during quenching of small box-shaped dies in a fluidized bed More
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Published: 01 February 2024
Fig. 54 Guide to the range of heat-transfer coefficients for various alternative media against fluidized-bed (F/B) quenching More
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Published: 01 February 2024
Fig. 51 Effect of alumina grain size on cooling-rate curves for 50 × 100 mm (2 × 4 in.) 90MnCrV8 steel samples quenched into an ambient-temperature fluidized bed More
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Published: 01 August 2013
Fig. 5 Effect of alumina grain size on cooling rates for 50 mm (2 in.) diameter and 100 mm (4 in.) length steel samples quenched in an ambient-temperature fluidized bed. Source: Ref 1 More