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salt bath furnaces

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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 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...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005776
EISBN: 978-1-62708-165-8
..., subclassifications, operating procedures, and maintenance procedures, as well as the equipment used (salt bath furnaces) and safety precautions to be undertaken during the liquid nitriding process. It describes the different types of liquid nitriding process, namely, liquid pressure nitriding, aerated bath nitriding...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005815
EISBN: 978-1-62708-165-8
... stability of steel. The article discusses the embrittlement problems associated with tempering. Four types of equipment are used for tempering, namely, convection furnaces, salt bath furnaces, oil bath equipment and molten metal baths. Special procedures for tempering are briefly reviewed. References...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005929
EISBN: 978-1-62708-166-5
... hardening externally heated furnaces heat treatment immersed-electrode furnaces isothermal quenching furnaces salt baths salt quenching steel submerged-electrode furnaces SALT BATHS are used commercially in a wide variety of heat treating operations including neutral hardening, tempering...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003198
EISBN: 978-1-62708-199-3
.... (d) Fluidized bed. (e) Resistance elements. (f) Intake for fluidizing gas (air or nitrogen). (g) Parts to be treated Fig. 3 Externally heated salt bath furnaces for liquid carburizing Fig. 4 Internally heated salt bath furnace with immersed electrodes and ceramic tiles Fig...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006276
EISBN: 978-1-62708-169-6
... Salt Baths Aging and Stress-Relieving Operations Example 1: Comparison of Atmosphere Furnaces and Salt Bath Treatment Protective Atmospheres Sampling and Testing Effect of Pretreatment Effect of Time Oxidation Effect of Lubricants Hydrogen Embrittlement Impurities...
Book Chapter

By Daryl D. Peter
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001388
EISBN: 978-1-62708-173-3
...Abstract Abstract This article describes the dip brazing process and the principal types of furnaces used for molten-salt-bath dip-brazing applications. It provides information on equipment maintenance, which is divided into temperature control, control of the liquid, and maintenance...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006256
EISBN: 978-1-62708-169-6
..., focusing on the three basic furnace designs used for heating or heat treating of unalloyed uranium: molten salt baths, inert-atmosphere furnaces, and vacuum furnaces. Finally, it presents procedures that are examples of heat treatment used to meet certain specifications of ultimate tensile strength, yield...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001452
EISBN: 978-1-62708-173-3
... corresponding furnace atmosphere for brazing different grades of stainless steel. The types of brazing processes include torch brazing, furnace brazing in different atmospheres (dissociated ammonia, dry hydrogen, and vacuum atmosphere), dip brazing in salt bath, and high-energy-beam brazing. A complete list...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006302
EISBN: 978-1-62708-179-5
... Schematic of a cross section of a part with a buried ring of brazing filler metal prior to brazing. Source: Ref 8 Fig. 3 Gray iron cylinder liners furnace brazed to a steel deck plate for a gasoline engine, after being cleaned in an electrolytic salt bath ( Example 1 ). Source: Ref 10...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005957
EISBN: 978-1-62708-166-5
... safety requirements of these furnaces. batch-type furnaces ceramic fibers continuous-type furnaces fluidized-bed furnaces heat exchangers heat treating furnaces salt bath furnaces FURNACES ARE ONE OF THE MOST VERSATILE TYPES of industrial appliances that span many different areas of use...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001225
EISBN: 978-1-62708-170-2
... Fig. 3 Schematic of an enclosed molten salt bath cleaning line Fig. 4 Fused salt cleaning system that is completely enclosed by a hood to comply with Occupational Safety and Health Administration guidelines Fig. 2 Cutaway view of a salt bath furnace incorporating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003197
EISBN: 978-1-62708-199-3
... that consists of a solid solution of nitrogen in the base iron. Depth of nitrogen diffusion in 1015 steel as a function of nitriding time at 565 °C (1050 °F) is shown in Fig. 16 . The outer compound layer provides wear resistance, while the diffusion zone improves fatigue strength. Salt bath furnaces used...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005802
EISBN: 978-1-62708-165-8
... piece, kg (lb) 1.1 (2.5) Pieces per fixture 14 Production per hour:  Number of loaded fixtures 10.7  Number of pieces 150  Weight of pieces, kg (lb) 170 (375) Equipment requirements Martempering furnace Steel salt pot with resistance immersion heaters (70 kW) Size...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003196
EISBN: 978-1-62708-199-3
... Type of equipment Temperature range Service conditions °C °F Convection furnace 50 to 750 120 to 1380 For large volumes of nearly common parts; variable loads make control of temperature more difficult Salt bath 160 to 750 320 to 1380 Rapid, uniform heating; low to medium volume...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003210
EISBN: 978-1-62708-199-3
..., furnace (atmosphere or vacuum) heating, induction heating, molten salt bath (molten flux) heating, and electrical resistance heating. The size and value of individual assemblies, the numbers required, and the required rate of production will influence the selection of heating method. Other factors...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005778
EISBN: 978-1-62708-165-8
... baths Table 1 Operating compositions of liquid carburizing baths Constituent Composition of bath, % Light case, low temperature 845–900 °C (1550–1650 °F) Deep case, high temperature 900–955 °C (1650–1750 °F) Sodium cyanide 10–23 6–16 Barium chloride … 30–55 (a) Salts...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003210
EISBN: 978-1-62708-199-3
.... Heating methods available for brazing include torch (flame) heating, furnace (atmosphere or vacuum) heating, induction heating, molten salt bath (molten flux) heating, and electrical resistance heating. The size and value of individual assemblies, the numbers required, and the required rate of production...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005946
EISBN: 978-1-62708-168-9
... steps: the first at approximately 650 °C (1200 °F) and the second right below the critical temperature, for example, 850 °C (1560 °F) for H13 steel. In salt bath furnaces, more steps can be used, especially for high temperatures of austenitization, such as for high-speed steels, when usually one...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005773
EISBN: 978-1-62708-165-8
... coating operation would be almost impossible with conventional external salt bath furnaces, and coating higher than 1100 °C (2010 °F) was done in salt baths prepared in a small heat-resisting alloy pot that was dipped into conventional internal-heating salt baths. Active CFEs/NFEs can be produced...