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roll-welded heat exchangers

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Book Chapter

Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001380
EISBN: 978-1-62708-173-3
..., including pack rolling. It describes a patented roll welding process for fabrication of heat exchangers. The article presents a table showing the typical properties of common roll welded clad laminates. The relative weldability of selected dissimilar metals and alloys roll welded into clad-laminate form...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005620
EISBN: 978-1-62708-174-0
... on the laser roll welding of dissimilar metals. deformation dissimilar-metal sheets lap joint laser roll welding one-sided laser heating plates roll welding roller heating roll-welded heat exchangers sheet joining sheet rolling solid-state welds thin-melting interface DISSIMILAR METALS...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003132
EISBN: 978-1-62708-199-3
... the periphery. In rotary piercing, one end of a heated cylindrical billet is fed between rotating work rolls that lie in a horizontal plane and are inclined at an angle to the axis of the billet ( Fig. 1 ). Guide rolls beneath the billet prevent it from dropping from between the work rolls. Because the work...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001458
EISBN: 978-1-62708-173-3
... brazing sheet example, many combinations of clad brazing materials are manufactured by cold roll bonding, a process that does not involve the explicit heating of the materials prior to the bonding operation. This material system is an economical solution for the fabrication of many high-volume, furnace...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001392
EISBN: 978-1-62708-173-3
... filler metal is located at any given location every time. To fabricate clad brazing materials, the brazing filler metal must be ductile enough to be roll bonded to the base metal. The roll bonding technique is described in the article “Roll Welding” in this Volume and in Ref 4 and 5 . A nickel...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006812
EISBN: 978-1-62708-329-4
.... Original magnification: 180× Welding Problems In the fabrication of pressure vessels, welding problems, such as brittle cracking in the heat-affected zone (HAZ), often result from the use of steels containing excessive amounts of residual alloy elements that increase hardenability...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006689
EISBN: 978-1-62708-210-5
..., 3004 Foil EN 546 3003, 3005, 3103 Forgings, hand forgings, and rolled ring forgings B247-15 3003 Rivet and cold-heading wire and rods B316/B316M 3003 Rolled or cold finished bar, rod, and wire B211 3003 Seamless condenser and heat-exchanger tubes with integral fins B404/B404M...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001065
EISBN: 978-1-62708-162-7
..., swaging, bending, machining, blanking, roll threading. Uses: electrical connectors, light-duty current-carrying springs, inorganic insulated wire, thermocouple wire, lead wire, resistance welding electrodes for aluminum, heat sinks C15720 Excellent cold workability. Fabricated by extrusion, drawing...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003702
EISBN: 978-1-62708-182-5
... insert ring. Similar attack has occurred in stainless shell and tube heat exchangers at the rolled tube-to-tubesheet joints and has been solved by seal welding the joints with appropriate weld filler metal and process parameters. In many cases, crevices are either too costly or impossible to design...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001066
EISBN: 978-1-62708-162-7
...). Fig. 12 Anisotropic stress-relaxation behavior in bending for highly cold-worked C51000 strip. Data are for 5% Sn phosphor bronze cold rolled 93% (reduction in area) to 0.25 mm (0.01 in.) and heat treated 2 h at 260 °C (500 °F). Graphs at left are for stress relaxation transverse to the rolling...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003834
EISBN: 978-1-62708-183-2
... in the amount of deformation and heat used to form the bond and in the method of bringing the metals into intimate contact. Cold and hot roll bonding apply primarily to sheet (less than 5 mm, or 0.2 in., thick), but explosion bonding is usually restricted to thicker gages (up to several inches). Most...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... residual stresses. Tubes rarely fail within the tube sheet, but failure behind the tube sheet because of overrolling is relatively common. The tube-expander cage must be properly located and the rolling process must be controlled to minimize overrolling. All heat-exchanger tubes purchased to ASTM...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005583
EISBN: 978-1-62708-174-0
... ( Table 1 ) has served as the basis for the modern high-speed pipe and tube welding systems in current use. In this continuous process, high-frequency current is concentrated in the formed strip edges and generates rapid heating in a small volume of metal at the weld interface. Pressure rolls...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006516
EISBN: 978-1-62708-210-5
..., and extrusions; drill pipe; automotive pistons; screw- machine stock, aluminum can bodies; closures; cookware; house siding; tubing 3 xxx Heat exchangers 4 xxx Brazing sheet, weld wire, forged pistons 5 xxx Aluminum can ends, automobile panels, tanker sheet, marine structures, railroad cars...
Book Chapter

By K. Sampath
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002488
EISBN: 978-1-62708-194-8
... pass by SMAW, and the remainder by SAW. (a) With high-frequency start, and slope control. (b) Weld head on boom-type manipulator, workpiece supported on power and idler rolls for turning. (c) In furnace. 1 h per 25 mm (1 in.) of section To reduce the cost, the joint design...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001020
EISBN: 978-1-62708-161-0
.... Welding is effected by the application of pressure and heat generated by induction or by an electric current through the seam. The welding pressure is generated by constricting rolls and the electromagnetic effects of the high welding current. Electric resistance welded tubular products having...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006813
EISBN: 978-1-62708-329-4
... heat-exchanger shell that failed due to hot shortness. (a) Longitudinal section of weld; dotted line indicates how the sample was sectioned for microexamination. Original magnification: ~2½×. (b) Micrograph of section from weld. Hot shortness resulted in intergranular cracking along the large columnar...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004202
EISBN: 978-1-62708-184-9
... sheet Table 3 Surface finishes on stainless steel sheet Finish Surface description No. 1 Hot-rolled, annealed, and descaled No. 2B Cold-rolled, annealed, and descaled plus light planishing pass between polished rolls (bright finish) No. 2D Cold-rolled, annealed, and descaled...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006449
EISBN: 978-1-62708-190-0
... … … … … … … … … … … … Weld open seam (full) X … … X … X X X … X … X Weld open seam (partial) … … … X … … X X … X … X Circumferential crack … … … X … … X X X X … X Ovality X X … X X … … X … … … … Eccentricity X X … … … … X … … X … X Rolled...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001046
EISBN: 978-1-62708-161-0
... and securing the desired surface characteristics and mechanical properties. Hot-Rolled Hot-rolled stainless steel strip is a semifinished product obtained by hot-rolling slabs or billets and is produced for conversion to finished strip by cold rolling. Heat Treatment Strip of all types...