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induction coil

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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...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005200
EISBN: 978-1-62708-187-0
... induction coils. The coils are made from copper tubing that is cooled by water flowing through the tubing. The passage of current through the coils creates a magnetic field that induces a current in the charge inside the refractory. When the heating of the charge material is sufficient that the charge has...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... the electrical circuit, with the surrounding copper coil being the primary. In a coreless furnace, the entire metal content of the crucible is the secondary. Fig. 1 Components of a coreless-type induction furnace. (a) Operational elements. (b) Cross section showing water-cooled copper induction...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006450
EISBN: 978-1-62708-190-0
..., bridge unbalance system, induction bridge system, and through transmission system. The article concludes with a discussion on the inspection of aircraft structural and engine components. aircraft structures bridge unbalance system coil impedance eddy-current inspection electrical conductivity...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003234
EISBN: 978-1-62708-199-3
... bridge system is an induction bridge, in which the power signal is transformer coupled into an inspection coil and a reference coil. In addition, the entire inductance-balance system is placed in the probe, as shown in Fig. 12 . The probe consists of a large transmitter (or driver) coil and two small...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003200
EISBN: 978-1-62708-199-3
... frequency, power, duration of heating, and coil design for induction hardening. The article also discusses the scope, application, methods, and operation of flame hardening. electron-beam heat treating flame hardening induction hardening induction tempering laser surface hardening...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006641
EISBN: 978-1-62708-213-6
... inductively by radio-frequency (RF) energy in a stream of inert gas. It consists of an assembly of three concentric quartz tubes (plasma torch) surrounded by a copper induction coil connected to a free-running or crystal-controlled RF generator, typically operated at 27 or 40 MHz with an output power of 1 to...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006647
EISBN: 978-1-62708-213-6
... induction coil at a radio-frequency (RF) electromagnetic field (27 or 40 MHz). The high-frequency current of up to 100 A flows in the water-cooled copper induction coils, generates oscillating magnetic fields oriented axially inside the quartz tube, and follows closed elliptical paths outside the tubes. The...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005199
EISBN: 978-1-62708-187-0
.... Fig. 2 Schematic cross section of a typical electric arc furnace showing the application of different refractories The high-frequency induction furnace is essentially an air transformer in which the primary is a coil of water-cooled copper tubing and the secondary is the metal charge. The...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005338
EISBN: 978-1-62708-187-0
... inside the crucible. Without the metal segments, the induction coil would serve only to melt the copper crucible. With the segments, the magnetic field supplied by the induction coil passes through the crucible segments and couples with the metal inside the crucible. When the charge is melted, a thin...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003173
EISBN: 978-1-62708-199-3
... induction furnaces ( Fig. 1 ), a small channel of molten metal surrounds the inductor coil. Only the small amount of metal in the inductor channel receives enough energy to be heated, and it is pumped out of the channel by electromagnetic forces into the remainder of the bath, which it heats by mixing...
Book Chapter

By G. Keough
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005203
EISBN: 978-1-62708-187-0
.... The key design elements of a reliable ISM crucible include effective water cooling and a segmented crucible that allows the field from the induction coil to couple to the load. Modern ISM crucibles use narrow gap technology to minimize the risk of liquid metal penetrating in between the segments and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003091
EISBN: 978-1-62708-199-3
..., and rotor steels have higher quality requirements and tighter composition control than plain carbon or ordinary low-alloy steels. The production of special-quality steels requires vacuum-based induction or electric remelting and refining capabilities. The article explores the types and characteristics...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006651
EISBN: 978-1-62708-213-6
... ionization source (components are not scaled in relation to each other). RF, radio frequency A typical ICP-MS instrument includes a peristaltic pump, nebulizer, spray chamber, torch/injector, RF coil, ion source (plasma), cones, and collision/reaction cells ( Fig. 3...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005303
EISBN: 978-1-62708-187-0
... into position within the coils by hydraulic cylinders. Fig. 6 Foundry installation of high-frequency induction lift swing furnaces A coreless induction furnace comprises a water-cooled copper coil in a furnace box made of steel or Transite. The metal is contained in a crucible or in a...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003021
EISBN: 978-1-62708-200-6
... desired. The welding equipment comprises a high-frequency induction generator, a water-cooled copper working coil, and press fixtures, which hold the polymer component so that it can be heated and loaded. Heating results from eddy currents that are induced in the thermoplastic tape containing the...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006678
EISBN: 978-1-62708-213-6
... sample housed inside a specimen chamber, typically below the electron-optics column. Electromagnetic lenses below the electron gun focus the electron beam to a small probe at the sample surface. Scanning coils deflect the electron probe across the sample surface, and detectors housed either in the...
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
... automatic process. INDUCTION BRAZING is a process in which the surfaces of components to be joined are selectively heated to brazing temperature by electrical energy transmitted to the workpiece by induction, rather than by a direct electrical connection, using an inductor or work coil...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001228
EISBN: 978-1-62708-170-2
... machines equipped with proper supporting and conveying devices are used for continuous blast cleaning of steel strip, coil, and wire. These machines are also used to clean castings and forgings at a high production rate, making use of flat face or skew rolls, monorails, and other continuous work-handling...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
... coil is rammed with grain refractory. The furnace chamber may be a refractory crucible or a rammed and sintered lining. General practice is to use ganister rammed around a steel shell that melts down with the first heat, leaving a sintered lining. Basic linings are often preferred; a rammed lining of...