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induction coils

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130417
EISBN: 978-1-62708-284-6
... an engineer, by simply adapting the shape of the induction coil, to ensure the desired shape of the hardened profile of the surface layer. Likewise, the engineer can surface harden only that part of the surface (local hardening) on which a certain increased level of hardness and wear resistance are...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... imparts some degree of toughness to the hard case. Any electrically conducting material can be heated by electromagnetic induction. As alternating current flows through the inductor, or work coil (which does not contact the workpiece), a highly concentrated, rapidly alternating magnetic field is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110587
EISBN: 978-1-62708-247-1
..., namely, common mode choke coil and surface mount powder choke coil. capacitors failure analysis failure modes inductors General construction of Tantalum, Aluminum electrolytic, Multi-layer Ceramics, Film, and Super capacitors and Common Mode Choke and Surface Mount inductors are explained...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740001
EISBN: 978-1-62708-308-9
... high-speed vacuum system ( Fig. 6 ). The heart of the furnace is the crucible ( Fig. 7 ) with heating and cooling coils and refractory lining. Heating is done by electric current that passes through a set of induction coils. The coils are made from copper tubing that is cooled by water flowing through...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... by application of current to the induction coils surrounding the refractory crucible. When the virgin material has been completely melted (all molten), it out-gasses. The outgassing is monitored until it is complete. At that point, the reactive and revert additions may be made, bringing the charge to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440207
EISBN: 978-1-62708-262-4
... warrant the relatively high equipment cost and the need for special induction coils. Considerable variation in the hardness of the cast irons may be expected because of a variation in the combined carbon content. A minimum combined carbon content of 0.40 to 0.50% C (as pearlite) is recommended for...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... Abstract This chapter covers the practices and procedures used for shape casting metals and alloys. It begins with a review of the factors that influence solidification and contribute to the formation of casting defects. It then describes basic melting methods, including induction, cupola...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740271
EISBN: 978-1-62708-308-9
... distortion or warpage. It is often used where small quantities of parts require hardening, the part is large and bulky, or the heat treating facilities are limited. In induction hardening, heat is supplied by surrounding the part with an inductor coil carrying a high-frequency current in the range of 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310127
EISBN: 978-1-62708-326-3
... addition, the chapter includes information on processes involved in induction heating of steel. annealing decarburization furnace equipment microstructure normalizing scaling ANNEALING is a generic term denoting a treatment, consisting of heating and holding at a suitable temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310163
EISBN: 978-1-62708-326-3
... tempering temperature without heating the remainder of the part to this temperature. Induction heating coils, flame heads, and immersion in salt baths are employed to achieve this selective heating. Induction and flame techniques generally are used in high-volume production applications and are easiest to...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
..., and laws of friction are introduced as a group of subjects that have been considered in the case studies. Added factors that were evaluated in the case studies are: Crankshaft underfill: induction coil inside diameter and stock diameter, equivalent current depth and subsequent time for...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... how an impedance bridge is balanced that is important, but rather how it is unbalanced by the effects of a flaw. Another type of 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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
... brazing process heating methods Method Characteristics Capital cost Running cost Basic output Flux required Versatility Operator skill required Torch (flame) L/M M/H L Yes H Yes Electrical resistance M M M/H Yes L No Induction M/H M M/H Y/N M No Furnace...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... magnet. A longitudinal section of one type of eddy current coil assembly is shown in Fig. 8 , and a more detailed drawing of the rotating coil setup is shown in Table 4 . Fig. 8 Coil assembly for the inspection of steel bars by the eddy current system. Dimensions in inches. Source: Ref 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... surface. In high-frequency induction welding, heating current is induced in the work through an external induction coil, and no physical or electrical contact between the workpiece and the power supply is needed ( Fig. 4.9 ). Fig. 4.9 Joining a tube seam by high-frequency induction welding. Source...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... of a metallic susceptor produces superior joint strengths. A typical induction setup uses an induction coil to generate an electromagnetic field that results in heating due to eddy currents in the conductive susceptor and/or hysteresis losses in the susceptor. Susceptor materials that have been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... component specification. Examples are DC-DC-converters, inductive coupling devices (sometimes replacing optocouplers) and relay coils. Table 1 shows typical inductances of components frequently used in electronic circuitry. Table 1 Typical inductances in automotive electronic circuitry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140189
EISBN: 978-1-62708-264-8
... coil used and with this frequency, the skin depth is calculated to vary as shown in Fig. 17.4 . Fig. 17.4 Induction heating skin depths for ferrite at 20 and 700 °C (70 and 1290 °F) and for austenite and ferrite at 800 °C (1470 °F) as a function of the current through the work coil The...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... oxygen precipitates as oxides in the solid state. Vacuum induction melting (VIM) is another method of melting stainless steels. This is a nearly slag-free process, and little refining is possible. Melt purity is largely controlled by the purity of the starting material, and use of AOD master melt...