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Heat distributing units

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Published: 01 March 2006
Fig. 18 Schematic of a typical installation for high-volume batch quenching of carburized or hardened parts on trays. Directional vanes in the oil stream distribute the oil flow uniformly. Unit contains combined heating and cooling elements and provision for blanketing the surface of the oil More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260029
EISBN: 978-1-62708-336-2
... is a complex one, and it becomes difficult, if not impossible, to get a complete analytical solution of the differential equation of heat transfer. The temperature increase and temperature distribution during extrusion have been investigated by many researchers ( Ref 1 – 5 ) since 1960. Approximate but useful...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.tm.t52320013
EISBN: 978-1-62708-357-7
... according to heating at (b) constant pressure and (c) constant volume. Fig. 2.3 Enthalpy according to grain-boundary or interface tension, peculiar to microstructures. Because the force (N) = the momentum change per unit time (kg · m/s 2 ) according to particle dynamics, the pressure ( P...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370145
EISBN: 978-1-62708-447-5
... this furnace with degassing and filtration units attached. These furnaces are designed with low hearth depths; they are large in length and width, and the shallow roof generates a significant amount of heat due to radiation from the burners located on the low roofs. Reverbs are classified into gas-fired...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370167
EISBN: 978-1-62708-447-5
... is distributed to the individual casting machine holders using a distribution ladle mounted on a tow motor. Installations with heated launders are also common. Some die cast operations use a monorail with a ladle for metal distribution. The metal distribution method influences the layout of the cells...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1996
DOI: 10.31399/asm.tb.phtpclas.t64560001
EISBN: 978-1-62708-353-9
..., plates) are presented. This information, coupled with the hardenability information, allows estimating the hardness distribution which is developed by the hardening heat treatment. Tempering is reviewed since most steels require subsequent tempering (mainly for improved toughness). Austenitizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2023
DOI: 10.31399/asm.tb.ceeg.t59370115
EISBN: 978-1-62708-447-5
... used for combustion Preheated hot air blast — using a separate heating chamber where a natural gas burner heats a maze of refractory brickwork. Air for combustion is heated as it passes through the heated brickwork before it enters the wind box. 6.2.2.1 Recuperative Hot Blast Units...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460173
EISBN: 978-1-62708-285-3
... furnace with controlled atmosphere, an atomizing chamber, and a powder-collection system ( Fig. 6.1 ). All the parts must be vacuum tight. Fig. 6.1 Inert gas atomizer for induction heating with ceramic or graphite crucible. Courtesy of Impact Innovations GmbH Melting of the feedstock can...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560427
EISBN: 978-1-62708-291-4
... in the joint by capillary attraction. brazing. A group of welding processes that join solid materials together by heating them to a suitable temperature and using a filler metal having a liquidus above 450 °C (840 OF) and below the solidus of the base materials. The filler metal is distributed between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220009
EISBN: 978-1-62708-341-6
... reviews the mechanistic basis for induction heating and provides an example of eddy-current distribution in a solid bar. The chapter defines two important concepts in the technology of induction heating: equivalent resistance and electrical efficiency. The chapter concludes with a discussion of methods...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410017
EISBN: 978-1-62708-265-5
... microstructure solid solutions steel STEEL CAN BE processed to produce a great variety of microstructures and properties. Desired results are accomplished by heating in temperature ranges where a phase or combination of phases is stable (thus producing changes in the microstructure or distribution...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030209
EISBN: 978-1-62708-282-2
.... Crude Unit The crude unit is the initial processing unit in most refineries. The raw crude oil enters the unit and after being heated somewhat, it enters the desalting phase. After desalting, the crude oil continues to be heated by exchangers and direct fired furnaces, normally reaching...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000223
EISBN: 978-1-62708-312-6
..., by addition of a substance to the annealed powder. A powder that is heat treated powder or by changing sintering conditions. to render it soft and compactible. activation. The enlargement of the surface free anodic polarization. The change of the elec energy or lattice binding energy of a solid. trode...
Book Chapter

By L. L. Sparks
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860047
EISBN: 978-1-62708-348-5
... of specific heat at low temperatures. electron distribution heat capacity lattice vibration spectrum phase transitions thermodynamics specific heat 2.1 Introduction Specific heat is a fundamental property that relates the total heat per unit mass added to a system to the resultant...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220143
EISBN: 978-1-62708-341-6
... controllers and heat-regulating devices. Integration of control functions is illustrated with examples related to heating of steel slabs, surface hardening of steel parts, vacuum induction melting for casting operations, and process optimization for electric-demand control. Distributed control within larger...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290261
EISBN: 978-1-62708-319-5
... where suf cient nickel is employed to stabilize the nonmagnetic phase at room temperature. 262 / Binder and Polymer Assisted Powder Processing B barrel. The heated portion of the feedstock ow path before the nozzle. The barrel holds the feedstock under pressure while providing heat to melt the binder...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.9781627083195
EISBN: 978-1-62708-319-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240303
EISBN: 978-1-62708-251-8
... coefficient of thermal expansion is a material property that indicates the extent to which a material expands on heating and has units of reciprocal temperature, such as K −1 or μm/m · K. The coefficient of thermal expansion increases as the temperature increases. In general, coefficient of thermal expansion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
... only at temperatures above 230 °F (110 °C). Compressive Strength (Yield The maximum stress in compression that can be withstood without plastic deformation or failure. Conductivity (Thermal) . . . The quantity of heat that flows through a material measured in heat units per unit time per unit of cross...