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Heat treating furnaces

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440055
EISBN: 978-1-62708-262-4
... Abstract This chapter, a detailed account of furnaces and related equipment for heat treating, begins by describing three basic modes of heat transmission, namely conduction, convection, and radiation, followed by a discussion on the working principle, applications, advantages...
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Published: 01 January 1998
Fig. 6-16 Schematic of an indirectly heated fluidized-bed heat-treating furnace. The gas enters the furnace from the Supply line on bottom left. Source: Ref 8 More
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Published: 01 March 2006
Fig. 6 Rotary hearth forging or heat treating furnace. Source: Ref 3 More
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Published: 01 December 1995
Fig. 15-10 Car bottom heat-treating furnace with miscellaneous castings More
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Published: 01 December 1995
Fig. 15-11 Continuous heat-treating furnace with water quench-tank in left foreground. Conveyor at right returns heat-treating tray and castings for unloading. More
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Published: 01 January 1998
Fig. 6-3 Process designs for automated salt bath furnaces for heat treating of high-speed tool steels. Installations can be custom designed to meet specific customer requests. (a) Does not include a wash and rinse operation. (b) Similar to (a) but includes a wash and rinse operation More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
... on hardenability and tempering response. It discusses the significance of critical temperatures, the use of transformation diagrams, and types of annealing treatments. It also provides information on heat treating furnaces, the effect of heating rate on transformation temperatures, quench and temper procedures...
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Published: 01 December 1995
Fig. 11-3 Grand Coulee Francis runner. Picture shows runner being taken to the heat-treat furnace built at the site. More
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Published: 01 March 2006
Fig. 13 Typical heat treat alloy carburizing furnace trays. Dimensions given in inches. Source: Ref 10 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900109
EISBN: 978-1-62708-358-4
... attention must be paid to these requirements in the design, construction, and operation of furnaces used to heat treat tool steels, especially those used for hardening, where metallurgical factors become all-important. Attempting to reduce production costs by bypassing heat treatment steps will yield an end...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080005
EISBN: 978-1-62708-304-1
... Abstract Many metallic components, such as retorts in heat treat furnaces, furnace heater tubes and coils in chemical and petrochemical plants, waterwalls and reheater tubes in boilers, and combustors and transition ducts in gas turbines, are subject to oxidation. This chapter explains how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900111
EISBN: 978-1-62708-350-8
...) fluidized bed; (5) resistance elements; (6) intake for fluidized gas (air or nitrogen); (7) parts to be treated. (b) Recirculation of fluidizing gas in a fluidized-bed externally heated by electrical resistance. Source: Ref 1 Fig. 4 Fluidized-bed furnace with internal heating by electrical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
... their mechanical properties. These special requirements should be part of the purchasing agreement and require involvement of the casting metallurgist. Equipment used for heat treating steel castings involves a great variety of furnace configurations, handling methods, and energy sources. Car-bottom...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050301
EISBN: 978-1-62708-311-9
... with no other alloying elements. carburizing. A process in which a heat-­treating furnace is used to produce a layer of iron carbide on the surface of a steel part. When quenched the layer is very hard. The case depth may be from 0.127 to 2.54 mm (0.005 to 0.100 in Steel parts can be first carburized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250155
EISBN: 978-1-62708-345-4
... AGMA class 7 after heat treatment. Some preliminary experiments were conducted to select a suitable heat treat furnace. The following furnaces were considered: Heat treatment in the air furnace was not acceptable due to: Although published literature indicated distortion of maraging C-250...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320021
EISBN: 978-1-62708-347-8
... Test Results Test results are shown in Tables 4.5 and 4.6 . Analysis of the results indicates: Both full and partial vacuum furnaces produced oxidation-free racks. Racks met the required quality level (AGMA class 9). In this case, the modified cutter and superior heat treat facilities...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440085
EISBN: 978-1-62708-262-4
... consist of three separate functions: material movement, the application of energy, and the supervision of process conditions. In a typical heat treating operation, work is moved into a furnace, heated according to a time-temperature program while exposed to defined surrounding conditions; cooled...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
... treated. The second factor is far more difficult to control in commercial heat treatment than the first because of the existence of numerous variables that alter the heat transfer and heat distribution patterns in a given furnace. For example, an empty furnace with forced circulation and conventional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320017
EISBN: 978-1-62708-347-8
... Fig. 3.1 Relation of maximum attainable hardness of quenched steels to carbon content. Courtesy Darle W. Dudley, Handbook of Practical Gear Design , Technomic Publishing Company, Inc., 1994 Abstract This chapter introduces the fundamental considerations involved in heat treating...