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induction coil cooling

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Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005839
EISBN: 978-1-62708-167-2
... checking, silver plating, and electrical parameter measurement. electrical contacts frequency induction coil cooling induction coils induction heat treating magnetic flux concentrators quenching silver plating sintered ferrite spindles FOR INDUCTION MELTING AND MASS HEATING, the early...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
..., including cooling systems, power supplies, heat stations, work handling fixtures, induction or work coils, and quench systems. The article discusses the influence of system elements on induction heat treating system design. It also deals with the general theory, types, and applications of induction coils...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005911
EISBN: 978-1-62708-167-2
... related to glass melting, but that used induction heating, was authored by Jean Reboux in 1969. He used an induction coil surrounding a series of longitudinal tubular elements that were electrically insulated from each other and water cooled ( Ref 11 ). These elements made up a cylinder...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005840
EISBN: 978-1-62708-167-2
... or bar is inserted and rolls through the induction coil via gravity with the help of an end-pusher device, and then is ejected from the coil via a water-cooled eject device mounted on the end of a pneumatic cylinder. Fig. 2 Wide oval coil used to heat bar ends. Courtesy of Ajax Tocco Magnethermic...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005846
EISBN: 978-1-62708-167-2
.... The article also describes the benefits of the flux controllers for induction heat treating processes such as single-shot and scanning. channel type furnaces continuous induction tube welding cooling crucible furnaces induction coils induction melting inductor crucible cold furnaces magnetic flux...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005899
EISBN: 978-1-62708-167-2
... of the coil and the refractory, noise emissions, and cooling tasks ( Ref 8 ). An example for coil design is the demonstration piece for a high-power, large-scale furnace coil depicted in Fig. 9 ( Ref 9 ). Here, the induction coil is made up of a hollow copper profile through which cooling water flows...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005842
EISBN: 978-1-62708-167-2
... Abstract This article focuses on the frequently encountered causes of induction coil failures and typical failure modes in fabrication of hardening inductors, tooth-by-tooth gear-hardening inductors, clamshell inductors, contactless inductors, split-return inductors, butterfly inductors...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005841
EISBN: 978-1-62708-167-2
... to an induction coil, care should be taken to make sure excessive heating of the hardware does not occur due to induced currents. When additional cooling circuits are added to an inductor to prevent overheating of the inductor, connections commonly are made with either brass connections or push-on polymer...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005909
EISBN: 978-1-62708-167-2
...: charging wet or ice-containing material into liquid metal, and a metal runthrough that melts down the copper tube of the water-cooled induction or cooling coil. The first problem can and should be avoided by preheating the scrap (charge material) and by working in accordance with the instructions...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005850
EISBN: 978-1-62708-167-2
..., computer systems, water cooling systems, fixtures and machines, air-operated or pneumatic devices, coils, and quench systems. It also presents simple rules that need to be applied while moving the equipment from one location to another. fixtures hardness test equipment hardness testing induction...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005900
EISBN: 978-1-62708-167-2
... should have no air pockets or pores, which lead to insulation failure: mechanically by glow discharges inside the pores, and thermally by disturbing equal heat flow from the crucible to coil/cooling water. Fig. 5 Insulation technique for the induction coil of vacuum induction furnaces. Courtesy...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005843
EISBN: 978-1-62708-167-2
... induction heating system. The heating coil is designed to achieve the desired temperature profile, cooling rate, and metallurgical pattern without much thought as to the type of power supply that ultimately will be used on the final system. When this occurs, a flexible interface is required to match...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005913
EISBN: 978-1-62708-167-2
.... This power supply unit converts regular line frequency (50 or 60 Hz) to a high-frequency signal, typically operating between 10 and 400 kHz. This high-oscillating signal is then fed to a tank circuit that feeds the water-cooled induction heating coil. The high-frequency signal generates a high-frequency...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005908
EISBN: 978-1-62708-167-2
... the losses in the coil are much higher than for cast iron, and the total efficiency of the process is only approximately 53%. Fig. 6 Energy flow for melting of copper in an induction crucible furnace Therefore, for the melting of copper and other nonferrous metals such as brass, aluminum...
Image
Published: 01 December 1998
Fig. 2 A cross section of a coreless-type induction furnace showing water-cooled copper induction coil and key structural components. The entire molten metal bath (which serves as the secondary) is surrounded by the coil (the primary) that encircles the working lining. More
Image
Published: 01 December 2008
Fig. 1 Components of a coreless-type induction furnace. (a) Operational elements. (b) Cross section showing water-cooled copper induction coil and key structural components. The entire molten metal bath (which serves as the secondary) is surrounded by the coil (the primary) that encircles More
Image
Published: 01 December 1998
Fig. 1 A cross section of a channel-type induction furnace showing the water-cooled copper induction coil that is located inside of a 360° loop formed by the throat and channel portion of the molten metal vessel. It is the channel portion of the loop that serves as the secondary More
Image
Published: 01 December 2008
Fig. 2 A cross section of a channel-type induction furnace showing the water-cooled copper induction coil, which is located inside of a 360° loop formed by the throat and channel portion of the molten metal vessel. It is the channel portion of the loop that serves as the secondary More
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005862
EISBN: 978-1-62708-167-2
... must be sufficient to cool below the surface ensuring it does not reheat from the core and temper the part. A second quench ring below the quench area can be added to provide sufficient cooling. Fig. 13 Coil for vertical scanning induction hardening with integral quench oriented at an angle...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005854
EISBN: 978-1-62708-167-2
... Abstract Induction heating system control is straightforward after the design and application of the coil and power supply required for the job. This article provides an overview of the basic components of an induction heating system, including a machine controller (computer or programmable...