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hot-wall pulsed dc technology

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Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005791
EISBN: 978-1-62708-165-8
... the work load. Today (2013), external resistance heaters in hot-walled furnaces are normally used to bring the load to nitriding temperatures (375 to 650 °C, or 700 to 1200 °F) with or without the help of glow discharge. Some general process differences between cold-walled and hot-walled (pulsed-dc...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001370
EISBN: 978-1-62708-173-3
... metals, thermocapillary flow drives the hot metal to the cold side ( Fig. 3 ), but the addition of sulfur changes the sign of the temperature dependence function of the surface tension and drives the liquid metal to the center of the pool. Fig. 3 Schematic showing effect of convection on LBW melt...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006460
EISBN: 978-1-62708-190-0
... of hot steel tubing in production, and the measurement and characterization of thin layers in microelectronics by two different approaches. Technological aspects, such as interferometer design, detection lasers, and others also are discussed, as well as digital processing and imaging methods adapted...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005590
EISBN: 978-1-62708-174-0
... metal is normally added cold. Filler metal may also be added by hot wire addition with automatic applications ( Fig. 22 ). Fig. 21 Typical manual electrode feeding Fig. 22 Schematic of gas tungsten arc welding (GTAW) with hot wire feed. ac, alternating current; dc, direct current...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0005663
EISBN: 978-1-62708-173-3
... sociation hcp hexagonal close-packed LME liquid-metal embrittlement NIST National Institute of Standards and HHC hot-hollow cathode LMP Larson-Miller parameter HIC hydrogen-induced cracking In natural logarithm (base e) Technology HIP hot isostatic pressing LNG liquefied natural gas nm nanometer HK Knoop...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005958
EISBN: 978-1-62708-168-9
... furnaces ( Fig. 14 ). Inside a double-walled pressure vessel construction, a well-isolated hot zone (heating chamber) is fixed. Between the two walls, water circulates to achieve efficient cooling of the vessel. The well-isolated heating chamber (cylindrical or rectangular) carries the load and the heating...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005717
EISBN: 978-1-62708-171-9
... and component to be coated. The effluent from most thermal spray processes is a hot, high-velocity stream of particulates, fumes, gas, and by-products of combustion and ionization. To protect personnel and the environment, the effluent must be captured and contained. High-temperature gases of the spray jet mix...
Book Chapter

By S.L. Rohde
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001288
EISBN: 978-1-62708-170-2
... the electrode can be coupled though an impedance ( Ref 35 ). The coupled electrode must be much smaller than the direct electrode in order to effectively sputter only the insulating or coupled electrode; this is usually accomplished by connecting the rf generator directly to the grounded chamber walls...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005127
EISBN: 978-1-62708-186-3
... distortion. A more advanced example of this is shown in the examples portion of this article. Fig. 6 Example of a 6061-T6 32 mm (1.25 in.) diameter, 1 mm (0.04 in.) wall thickness tube electromagnetically crimped onto four nuts using four electromagnetic discharges and a coil similar to that shown...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.9781627081733
EISBN: 978-1-62708-173-3
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006515
EISBN: 978-1-62708-207-5
... Gas tungsten arc robotic welding head with cold wire-feed device. Courtesy of Lincoln Electric Company Fig. 13 Schematic of gas tungsten arc welding (GTAW) with hot wire feed. ac, alternating current; dc, direct current As with any open-arc welding process, a skilled welder can easily...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
... of material, also magnetized to saturation, may have the summation of its magnetic moments point in another direction. Where two such volumes meet (with differing alignments), a domain boundary wall must exist. The total magnetization of a sample of material is the net vector summation of all the individual...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... (carburizing, nitriding, and boriding) surface modifications, electrochemical treatments (electroplating, and anodizing), chemical treatments (electroless plating, phosphating, and hot dip coating), hardfacing, and thermal spray processes. It provides information on chemical and physical vapor deposition...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.9781627081849
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004225
EISBN: 978-1-62708-184-9
... ESCC electrical resistance HV Rockwell C hardness) kilopascal ETFE potential in the reverse scan of a Health and Safety Executive LMC EVD HVAC (U.K.) LME liquid exp cyclic polarization curve for high-temperature hot corrosion LMIE liter f which the current density HWC Vickers (diamond pyramid) pound F...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006641
EISBN: 978-1-62708-213-6
... be analyzed at least two times under both hot- and cold-plasma conditions to obtain the concentration of all elements. This analysis arrangement reduces analysis throughput and lowers instrument productivity. Furthermore, the reduced RF power makes the plasma susceptible to matrix effects when analyzing...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006457
EISBN: 978-1-62708-190-0
... Typical configuration of bonded honeycomb assembly. (a) Trailing edge. (b) Leading edge Water in Core Cells Upon completion of the bonded assembly, some manufacturers perform a hot-water leak test to determine if the assembly is leakproof. If the assembly emits bubbles during the leak test...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005626
EISBN: 978-1-62708-174-0
...-Projection Welding Embossed-projection welding is generally a sheet-to-sheet joining process in which a projection is stamped onto one of the sheets to be joined. Then, resistance welding is conducted on a stack of sheets. Initially, weld current is concentrated at the contact point and within the walls...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
... may include, but is not limited to: Date of installation Piping material grade Diameter and wall thickness Seam weld type (if any) Coating type Cathodic protection information Previous hydrotest results (including dates, pressures, and times) In-line inspection results...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009011
EISBN: 978-1-62708-185-6
.... Even small amounts of buckling can noticeably affect the magnitude of the plastic properties deduced from the hot torsion test ( Ref 34 ). Typical dimensions for thin-wall specimens are 12.5 mm (0.50 in.) outer diameter, 11 mm (0.44 in.) inner diameter, and a gage length of 2.5 mm (0.10...