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Coils (windings)

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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
..., and brazing and fabricating the copper coil winding for heating billets, bars, and slabs. The article describes refractory selection criteria and the methods of mounting and securing the induction coil winding, and presents general refractory installation guidelines for induction heating applications...
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Published: 09 June 2014
Fig. 12 Low-frequency coil design in which the induction coil winding is compressed between end plates using long rods with threads and nuts. Courtesy of Ajax Tocco Magnethermic More
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Published: 09 June 2014
Fig. 13 Low-frequency coil design in which the induction coil winding is compressed between end plates More
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Published: 01 January 2006
Fig. 3 Corrosion failure site in bottom layer of relay-coil winding More
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Published: 09 June 2014
Fig. 11 Typical components of a fluidized-bed system used to powder coat the coil windings to provide a high-dielectric insulation on the winding More
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Published: 01 December 1998
Fig. 19 Mechanism for winding springs that have coils of varying diameters More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004160
EISBN: 978-1-62708-184-9
... to the stator winding and stator core can also occur, often requiring a stator rewind and core repair. The problem occurs specifically at a brazed connection at the end of the stator coil. The braze material, which joins the copper clip or sleeve to the hollow strand bundle, is relatively porous in nature...
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
... transformer uses a toroidal-shaped core construction that is much like a doughnut formed by using thin permeable steel strip that is wound into the desired height and thickness. The coil then is wound on the core using round copper tubing to form the primary and secondary windings. It is water cooled...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005849
EISBN: 978-1-62708-167-2
... while leaving the previously loaded billets stationary in the heat coils. While the billets remain stationary in the coils, some of the billets may rest in an area between coil windings, resulting in an unheated area occurring in the billet. This unheated area is called banding and causes a bigger...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004173
EISBN: 978-1-62708-184-9
... into the coil winding. As suggested in Fig. 2 , the most critical locations are near grounded metallic structures, that is, inside surfaces of the coil-bobbin flanges and the bottom layer of the winding. If an insulation pinhole is present at one of these critical locations, then corrosion of the wire...
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
.... During a recipe recall, each zone power level is selected and the feedback is monitored. Further control can be done through the use of infrared pyrometers aimed through the coil windings into each zone coil for the expected temperature. The temperature data is analyzed against the program values...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001400
EISBN: 978-1-62708-173-3
... be caused by movement of the coil windings through forces generated by the magnetic field. Water contacting the hot part produces an immediate, violent steam explosion. To prevent this occurrence, adequate clearance should be maintained between the coil and the part (typical minimum spacing is 6.4 to 13 mm...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001111
EISBN: 978-1-62708-162-7
..., Teledyne Wah Chang Albany React and Wind The decision to react the wire before or after coil winding is governed by such factors as coil size, insulation, and complexity of winding. Though the wire is brittle, it may be bent so long as the maximum bending strain is kept below the irreversible...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005897
EISBN: 978-1-62708-167-2
... but not limited to the coil-to-workpiece radial gap (electromagnetic proximity effect), physical properties of the heated metal, presence of magnetic flux concentrators and Faraday rings, specifics of copper turn winding, length of the coil, electromagnetic end and edge effects, and applied frequency...
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Published: 01 January 1990
Fig. 22 Schematic representation and close-up photo of a 23-strand transposed Rutherford cable for the superconducting supercollider. Polyamide (Kapton) film wrap allows slippage with low friction as the coils are energized, reducing thermal transients in the conductor. Widely spaced More
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
...; some may be two or even three turns. Taps will be taken from the primary winding and brought to link-connected terminals. The windings are water cooled, and the core may have some water-cooled heat sinks stacked in the core. The high ratios are used to work into single-turn inductors or coils of only...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009152
EISBN: 978-1-62708-186-3
... generated at the two secondary windings is the same. Thus, the differential voltage between the two secondary windings is zero. If the core is moved closer to one of the two secondary windings, the voltage generated in that coil is larger than that developed in the other coil, resulting in a differential...
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
.... Electrotechnically, an induction furnace can be thought of as a transformer. Figure 8 shows the equivalent circuit diagram. The induction coil is the primary winding , and the crucible wall isolates it from the neighboring melt, which is the short-circuited secondary coil, or winding. The coil has an effect...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001337
EISBN: 978-1-62708-173-3
... form, conversion to the lower voltage and selection of current are incorporated into a single, special welding transformer. Movable coils (varying the coupling between primary and secondary windings) and moving iron shunts provide stepless adjustment of the output ( Fig. 2a ). Saturable Reactors...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006467
EISBN: 978-1-62708-190-0
... to the long axis of the bar being inspected, a solenoid winding or encircling coil is used. For longitudinal-type flaws, circumferential magnetization is used; an electric current flowing through the bar sets up a magnetic field at right angles to the long axis of the bar. To protect the bar from arc burns...