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magnetic cores

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Published: 01 June 1988
Fig. 9.1 Concentrating effect of a permeable core on a magnetic flux field More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370021
EISBN: 978-1-62708-447-5
... units; magnetic separators; lump breakers and core crushers; screens; sand coolers; sand reclamation systems; and sand hoppers. core sand mixers sand aerators sand coolers sand mullers sand reclaimers shakeout units MOLD QUALITY is an extremely important factor with regards to casting...
Image
Published: 01 June 1983
Figure 13.7 Representation of a vortex lattice in a Type II superconductor. The normal cores are represented by dots; the screening currents, by circles. The side view shows the distortion of an applied uniform magnetic field as it is channeled through each vortex core by the screening More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
... materials: soft and hard magnets. Soft magnets are used for applications where the material must be easily magnetized and demagnetized, such as for cores of transformers and stator and rotor materials for motors and generators. Hard magnets retain their magnetization and are not easily demagnetized...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
..., but rather are sold based upon controlled magnetic properties, particularly ac core losses. Table 2 lists maximum allowable core losses for various silicon (electrical) steels. Core loss values for flat-rolled electrical steels Table 2 Core loss values for flat-rolled electrical steels AISI...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050009
EISBN: 978-1-62708-311-9
... Abstract This chapter discusses the basic principles of induction heating and related engineering considerations. It describes the design and operation of induction coils, the magnitude and distribution of magnetic fields, and the forces that generate eddy currents in metals. It explains how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
... larger eddy currents in the workpiece. Fig. 9.1 Concentrating effect of a permeable core on a magnetic flux field Materials for Flux Concentrators Materials for flux concentrators are of two basic types: (1) packages of laminated silicon steel punchings used at frequencies below 10 kHz...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730051
EISBN: 978-1-62708-283-9
... of the system is lower when a domain wall passes through an inclusion than when the boundary has separated from the inclusion. Uses of soft magnetic materials include transformers, motor and generator cores, solenoids, relays, magnetic shielding, and electromagnets for handling scrap. Many...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420185
EISBN: 978-1-62708-452-9
... was heat treated by through hardening, then quenched and tempered to 42-47 HRC. The surface hardness was 46 HRC, and the core hardness (½ radius) 46 HRC. In conclusion, the shaft met the metallurgical requirements and should have withstood normal operating conditions. The mode of failure was torsional...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370013
EISBN: 978-1-62708-447-5
... foundries) Refractories (furnace lining materials and tiles) Nonmetallic materials — smaller packages Bentonite Coal dust or sea coal Dextrin Core binders (resins and furan) Sodium silicate Mold coatings In addition, foundries receive molding flasks, pattern plates, mold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
... plate A second bottom board on which molds are opened. Bainite . . . In steel, an acicular aggregate of ferrite and carbide, resulting from an isothermal transformation of austenite at a temperature below the pearlitic range and above Ms. Baked Core . . . A core which has been heated for a sufficient...
Book Chapter

By J. W. Ekin
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860465
EISBN: 978-1-62708-348-5
... Representation of a vortex lattice in a Type II superconductor. The normal cores are represented by dots; the screening currents, by circles. The side view shows the distortion of an applied uniform magnetic field as it is channeled through each vortex core by the screening currents, leaving most...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000131
EISBN: 978-1-62708-312-6
... with the smallest possible H . Hysteresis loss is kept low by selecting materials that have narrow and tall hysteresis loops. Soft magnetic materials are used in applications such as transformers and motor cores, where the primary requirement is large power-handling capacity with low energy losses. In addition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860203
EISBN: 978-1-62708-348-5
... magnet materials of which the inverse is true. Soft materials are used in electromagnets, transformer cores, shielding of magnetic fields, inductors for ac circuits, overlay patterns for the manipulation of magnetic bubbles, and ferrite cores. A complete treatment of the physical and metallurgical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860081
EISBN: 978-1-62708-338-6
...-supercolliding magnet support post Figure 7.11 is a picture of a magnet core, superconducting quantum interference device, which is used in a quantum interference detector. This unit uses a filament-wound, ±45° copper wire core to eliminate the magnetic field that would be generated by rotation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... is one of the oldest methods of producing a part with a hard surface and a relatively soft core without altering composition, is involved with each of these surface hardening methods. Although the part is heated throughout the section, a low-hardenability steel transforms to the austenitic state from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220143
EISBN: 978-1-62708-341-6
... by controlling the magnetic field in its iron core. This is done by impressing the temperature-control current across the control windings. If this current is low (i.e., if the temperature deviation from the setpoint is low), the core is not saturated, the inductance of the main winding is high, and a large...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110587
EISBN: 978-1-62708-247-1
... wire. The core is ferrite, pressed metal powder, or laminated metal ribbon. Insulation coated copper wire is used for winding. The ends of the wound wire are used as the connecting terminals. CMCC’s electric performance depends on the permeability of the magnetic material, core size, and number...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
... the temperature at which grain growth occurs, allowing for more preferential grain orientation in the core material. Magnetically hard materials for use as permanent magnets are also ferromagnetic materials, but are those that are capable by themselves of producing and maintaining relatively high magnetic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... inspection. Casting defects including porosity, oxide films, inclusions, hot tears, metal penetration, and surface defects are reviewed. Liquid penetrant inspection, magnetic particle inspection, eddy current inspection, radiographic inspection, ultrasonic inspection, and leak testing for castings...