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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
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900111
EISBN: 978-1-62708-350-8
... to another (e.g., from nitriding to ferritic nitrocarburizing, or from carburizing to carbonitriding) ( Ref 2 ). The one major disadvantage is that it requires a fairly high volume of reactive gas to complete the process. Temperature control is exactly the same as for a conventional heat treating furnace...
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
... at the time of this investigation. To expedite the program further, a standard shaper cutter was used to cut the teeth. The racks were then heat treated. Heat Treatment of Racks Some preliminary experiments were conducted to select a suitable heat treat furnace. The following furnaces were considered...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.htgpge.t67320021
EISBN: 978-1-62708-347-8
... Treatment of Racks Some preliminary experiments were conducted to select a suitable heat treat furnace. The following furnaces were considered: Partial vacuum furnace Full vacuum furnace Air furnace Heat treatment in the air furnace was not acceptable due to: Oxidation of racks...
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 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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220001
EISBN: 978-1-62708-341-6
... Abstract Electromagnetic induction, or simply "induction," is a method of heating electrically conductive materials such as metals. It is commonly used for heating workpieces prior to metalworking and in heat treating, welding, and melting. This technique also lends itself to various other...