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Cooling coils

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Published: 01 December 2006
Fig. 35 Stainless steel nitrator cooling coil weld joint. Failure was caused by improper design of a backing ring that was not consumed during welding and left a crevice. Source: Ref 19 More
Image
Published: 01 December 2015
Fig. 19 Stainless steel nitrator cooling coil weld joint. Failure was caused by improper design of the backing ring, which was not consumed during welding and left a crevice. Source: Ref 8 More
Image
Published: 01 June 1988
Fig. 8.20 Water-cooled flux “robbers” inserted between adjacent coils in a multizone camshaft-hardening machine Source: American Induction Heating Corp. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220077
EISBN: 978-1-62708-341-6
...Abstract Abstract This chapter describes two types of auxiliary equipment required in most induction heating installations: cooling systems and device timers. Water- and vapor-based systems used for cooling the power supply and the induction coil are described. The chapter concludes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050317
EISBN: 978-1-62708-311-9
... after soldering. Any surface flux is hard to mechanically remove after cooling. Soaking and flushing the area with hot water (as close to boiling as possible) will remove the flux. After the flux is removed, the coils should be checked for leaks. Finally, light glass bead cleaning will remove any oxides...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
... power supplies). Most maintenance for induction heat-treating systems is centered on the cooling water systems, the high-frequency electrical output connections from the heat station, the induction coil, any mechanical fixturing, and the quench system, because the power supplies and heat stations have...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220185
EISBN: 978-1-62708-341-6
... (0.13-in.) square tubing on a small bore, utilizing 60 kW of power. Because of the high currents utilized during the heating cycle as well as the heat radiated from the workpiece surface, more cooling than can be obtained using the normal coil water supply is required here. In a case of this nature...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050139
EISBN: 978-1-62708-311-9
... and then indexed into a spray quench. The workpiece is quenched in place from the coil after heating by a spray quench ( Fig. 6.10b ). In this case the coil has two different cooling passages: one on the outside diameter for cooling the coil, with the cooling water on all the time, and the second admitting...
Image
Published: 01 August 2018
Fig. 13.12 Longitudinal cross section of the same steel from Fig. 13.11 . (a) and (b) Hot rolled, cooled 7 °C/s (13 °F/s) and coiled at 650 °C (1200 °F), followed by cold rolling. (c) and (d) Hot rolled, cooled at 60 °C/s (110 °F/s) and coiled at 500 °C (930 °F), followed by cold rolling More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
... for cooling the electrical components, power supply, heat station, work-handling fixture, controls, work coil, and quench system. Depending on the power supply and processing requirements, these elements may be furnished either separately or unitized. The power supply is the component that receives the line...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050335
EISBN: 978-1-62708-311-9
... and placed outside the coil where the flux field intensity is low. Hose clamps (including the screw) and quick connects should be made from nonmagnetic materials if they heat from the coil’s magnetic flux field. Quench Cooling System Design The quenchant must be selected for the characteristics...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050057
EISBN: 978-1-62708-311-9
... that they are rigid and do not move when power is applied. The coils must be designed so that they do not overheat during use and do not develop stress fractures during use. As a rule, lower-frequency coils generally operate with higher-power inputs, so they require more rigidity and better cooling. All coils...
Image
Published: 01 August 1999
Fig. 4.13 (Part 1) Low-carbon strip for vitreous enameling. (a) to (d) Enameling sheet (same batch of material as that shown in Fig. 4.12 ). 0.03C-0.005Si-0.04Mn-0.02S-0.01P (wt%). (a) Cold rolled 50% heated at 970 °C for 10 min, air cooled. 105 HV. 3% nital. 100×. (b) Cold rolled 50 More
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Published: 01 November 2013
Fig. 13 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. Source: Ref 5 More
Image
Published: 01 November 2013
Fig. 12 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
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... or similar types of apparatus. In these instances, a stainless steel forming die is fabricated with internal channels for water cooling ( Fig. 11.3 ). In operation, the die is heated by an induction coil on an automatic forming machine. When the die is raised to the forming temperature of the plastic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560039
EISBN: 978-1-62708-291-4
.... After leaving the finishing stand, the strip passes over a runout table, where it is cooled by water sprays from above and below, and is then coiled. The temperature at which it enters the coil (the coiling temperature) is the second important controlling parameter. The coiling temperature is related...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220241
EISBN: 978-1-62708-341-6
... densities, there is some loss generated as heat within their structures. Generally, the laminations in the coil area are cooled by virtue of the fact that they are in contact with the coil. In high-power-density situations, it is important therefore that the coil water-cooling system be designed to handle...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220253
EISBN: 978-1-62708-341-6
.... Because the electromagnetic field extends beyond the coil, fixtures made of electrically conducting materials (e.g., steel) may be heated also, leading to a costly loss of energy. For this reason, fixture materials such as aluminum, which heats less readily and which is easy to cool, and nonconducting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.9781627083119
EISBN: 978-1-62708-311-9