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temperature-control devices

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220077
EISBN: 978-1-62708-341-6
... discussion of timers, with emphasis on open-loop timing systems. induction heating power-timing devices temperature-control devices vapor-coolant systems water-cooling systems Besides the power supply, other auxiliary pieces of equipment are required in most induction heating installations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220143
EISBN: 978-1-62708-341-6
... be correlated to the temperature or heating pattern in the induction heated workpiece, such as measurement of coil impedance or of coil voltage and current. A controller for comparing the temperature of the workpiece to a preset desired temperature. A power-control device for regulating the power...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440085
EISBN: 978-1-62708-262-4
... to view target surfaces as small as 0.0254 mm (0.001 in.) in diameter and may be used to monitor and/or control furnace temperatures or the surface temperatures for induction, laser, or electron beam hardening. Radiometers and pyrometers are rugged, low-cost devices that can be used in an industrial...
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
... system, the induction generator frequency is generally either in the radio-frequency range (approximately 500,000 Hz) for shallow cases or about 3000 to 10,000 Hz for deeper cases. In either instance, a temperature controller automatically senses if the part has been heated to too high or to too low...
Image
Published: 30 April 2020
Fig. 5.25 Sketches of various mixing geometries. Each device has a small clearance area where shear induces the binder to smear over the particles. Usually, the mixer is temperature controlled. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780153
EISBN: 978-1-62708-281-5
... of a plastic to chalking. This device is equipped with temperature and humidity controls, as well as a water spray, to simulate outdoor conditions. The use of the sunshine carbon arc weatherometer is discussed in ASTM G 23-81 ( Ref 3 ). Twin Enclosed Carbon Arc The twin enclosed carbon arc weatherometer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110513
EISBN: 978-1-62708-247-1
... control unit, a mixed signal device controlling a throttle unit was failing. The device clearly exhibited EOS (electrical overstress). At first, failure anamnesis indicated that the returns were coming from countries without speed limit and after the engine control unit was changed, the failure never re...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110666
EISBN: 978-1-62708-247-1
... levels, equipment flow rates, temperatures, deposition rate(s), etch rate(s), alignment tolerances, critical dimensions of structures, and many more. Figure 1 is an example of a statistical process control chart. Note that this example chart summarizes the deposition rate mean and standard deviation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060065
EISBN: 978-1-62708-355-3
... is suitable. Nickel-base superalloys are adequate for testing in air at up to 1100 °C (2010 °F). Above 1100 °C, ceramics are used in reactive atmospheres, whereas refractory metals are adequate for inert environments. Environmental chambers contain automated systems for temperature control and can also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110209
EISBN: 978-1-62708-247-1
... in Fig. 7 , a supply voltage was permanently applied to an intact step motor controller, and the lock-in trigger was fed to a control input of the controller. In this arrangement, there are heat sources in the device that are not affected by the trigger signal. The heat dissipation of these heat sources...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110144
EISBN: 978-1-62708-247-1
... plastic from bond wires or leadframe. Anisotropic ablation leaves minimal undercut. Pocket depth can be somewhat controlled by focal depth of the laser. Disadvantages: Cannot expose die without damage requiring an alternative method to clear die. Discretes such as ceramic capacitors...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140201
EISBN: 978-1-62708-264-8
... Abstract Temperature is a critical process parameter in the heat treatment and forging of steel and must be accurately measured to properly control it. This appendix discusses the operating principles of thermocouples and infrared pyrometers, describing the various types as well as advantages...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050025
EISBN: 978-1-62708-311-9
... supplies is due to the continued technology advances in the ability of silicon-controlled rectifiers (SCRs, or thyristors) and transistors to operate at higher voltages, faster switching speeds, and higher temperatures with better operating characteristics. Newer induction systems are more efficient, more...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110499
EISBN: 978-1-62708-247-1
... analysis is a three step process of electrical test and diagnosis, localization and physical failure analysis. Device internal electrical measurements are controlled by the DRAM command interface. Diagnosis results for memory array failures are classified by bitmapping techniques that also provide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260245
EISBN: 978-1-62708-336-2
... innovations. The major trend of research is in the advancement of productivity and quality. To satisfy these two areas, technology is advancing toward the development of more controls in press equipment to finally control the exit temperature and speed to optimize production. Technology is also advancing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110180
EISBN: 978-1-62708-247-1
... by strong unstable current conditions and eventually device breakdown which may be destructive if not controlled carefully. Fig. 5 shows how strong light emission of the type F-PE occurs, plus some occasional R-PE events. Breakdowns of highly doped pn junctions may not always have an avalanche character...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060239
EISBN: 978-1-62708-355-3
... tests. It covers the parameters and standards related to low-temperature tensile testing. The chapter discusses the factors involved in controlling test temperature. Finally, the chapter discusses the safety issues concerning the use of cooled methanol, liquid-nitrogen, and liquid helium. References...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
.... Many nonferrous elements do double duty as important alloying agents for both steels and nonferrous metals. For example, virtually all steels contain small amounts of manganese , which is used mainly to control (and in some cases counteract) the undesirable effects of sulfur and to aid in achieving...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260055
EISBN: 978-1-62708-336-2
... of large capacity presses, the inside temperature of the liner is difficult to maintain with conventional wraparound container heating elements. For better control of extrusion temperature, especially in aerospace extrusions, multizone temperature control for proper heating of the container was developed...
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
... mechanical devices. Maintenance requirements should be determined with a preventive maintenance program established according to the needs of the system. Table 14.1 , presented in Chapter 14, “Quality Control,” in this book, provides a model for maintenance requirements. Radio frequency power supplies...