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exothermic brazing

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Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001391
EISBN: 978-1-62708-173-3
... Abstract Exothermic brazing is a process that utilizes the heat produced in a solid-state chemical reaction to melt a conventional filler metal or to produce molten filler metal as a product of the reaction. This article provides the pros and cons of exothermic brazing, describes procedure...
Image
Published: 01 January 1993
Fig. 1 Typical arrangement for exothermic brazing of tube. Source: Ref 2 More
Image
Published: 01 January 1993
Fig. 2 Heating versus time characteristics for exothermic brazing. Larger masses require longer times to heat up and achieve lower maximum temperatures for a fixed amount of exothermic compound. Source: Ref 2 , 6 More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001345
EISBN: 978-1-62708-173-3
..., temperature and time, rate and source of heating, and protection by an atmosphere or flux. The article explains the different types of brazing processes: manual torch brazing, furnace brazing, induction brazing, dip brazing, resistance brazing, infrared (quartz) brazing, exothermic brazing, electron-beam...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003210
EISBN: 978-1-62708-199-3
... such as diffusion and exothermic brazing. The article explains joint design, filler materials, fuel gases, equipment, and fluxes in the brazing methods. The article also describes the brazing of steels, stainless steels, cast irons, heat-resistant alloys, aluminum alloys, copper and copper alloys, and titanium...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005983
EISBN: 978-1-62708-166-5
... Lean exothermic Oxide coating of steel 86.8 1.5 10.5 1.2 … 102 Rich exothermic Bright annealing; copper brazing; sintering 71.5 10.5 5.0 12.5 0.5 201 Lean prepared nitrogen Neutral heating 97.1 1.7 … 1.2 … 202 Rich prepared nitrogen Annealing, brazing stainless steel...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005848
EISBN: 978-1-62708-167-2
... endothermic Gas carburizing 39.8 20.7 … 38.7 0.8 402 Charcoal Carburizing 64.1 34.7 … 1.2 … 501 Lean exothermic-endothermic Clean hardening 63.0 17.0 … 20.0 … 502 Rich exothermic-endothermic Gas carburizing 60.0 19.0 … 21.0 … 601 Dissociated ammonia Brazing, sintering...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005647
EISBN: 978-1-62708-174-0
... eV electron volt EXB exothermic brazing exp base of the natural logarithm EXW explosion welding f frequency FCAW flux cored arc welding fcc face-centered cubic fct face-centered tetragonal FEA finite-element analysis FEM finite-element method Fig. figure...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005552
EISBN: 978-1-62708-174-0
... The second way in which chemical reactions can be used to produce heat for welding or brazing is best known as thermit welding but which actually includes a wide variety of so-called aluminothermic reactions and, more recently, a variety of similar highly exothermic chemical reactions known as combustion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003199
EISBN: 978-1-62708-199-3
... CO 2 H 2 CH 4 101 Lean exothermic Oxide coating of steel 86.8 1.5 10.5 1.2 … 102 Rich exothermic Bright annealing; copper brazing; sintering 71.5 10.5 5.0 12.5 0.5 201 Lean prepared nitrogen Neutral heating 97.1 1.7 … 1.2 … 202 Rich prepared nitrogen...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005926
EISBN: 978-1-62708-166-5
... Exothermic 70–100 0–16 0–11 Nitrogen-hydrogen 90–100 0–10 … … Nitrogen-methanol 91–100 0–6 0–3 … Dissociated ammonia 25 75 … Nitrogen-hydrogen 60–90 10–40 … … Reactive Brazing Exothermic 70–80 10–16 8–11 Nitrogen-hydrogen 95 5 … … Dissociated ammonia 25 75...
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
... expansion EXB exothermic brazing AFM atomic force microscopy CTOD crack tip opening displacement exp base of the natural logarithm CVD chemical vapor deposition EXW explosion welding AI artificial intelligence CVN Charpy V-notch (impact test or speci- f frequency AISC American Institute of Steel Construc...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003831
EISBN: 978-1-62708-183-2
... atmosphere. Thus, most common brazing processes include furnace brazing (with atmospheres of hydrogen, nitrogen, argon, exothermic, endothermic, or dissociated ammonia), vacuum brazing, induction brazing, and torch brazing. The choice of brazing process depends on the base material, part size, part geometry...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001454
EISBN: 978-1-62708-173-3
... of exothermic or endothermic gases or in the form of dissociated ammonia. Because the torch brazing of tough-pitch coppers also can cause problems with embrittlement, it generally should be avoided. Copper metals that have been deoxidized by phosphorus or other elements and oxygen-free coppers can...
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: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001453
EISBN: 978-1-62708-173-3
... of metal fixturing because many of these brazements are made at lower temperatures. Atmospheres and Fluxes Low-alloy steels and tool steels can be brazed in air, vacuum, hydrogen, nitrogen or endothermic or exothermic atmospheres. Components can also be torch or induction brazed in air using fluxes...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001373
EISBN: 978-1-62708-173-3
... between a metal oxide and aluminum acts as the filler metal. This exothermic process was discovered in 1898, in Germany, by Dr. Hans Goldschmidt of Goldschmidt AG. In the United States, this process was used in the early 1920s to join trolley car track. In 1933, thermite welding was used...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006302
EISBN: 978-1-62708-179-5
... for each liner. The assembly was then brazed by the following procedure. The assembly, on its carbon block and tray, was pushed into the vestibule of a 330 kW multiple-zone roller hearth furnace. The assembly then entered the heating zone under an exothermic atmosphere at 700 °C (1300 °F), where...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001452
EISBN: 978-1-62708-173-3
... of stainless steel are dry hydrogen and dissociated ammonia. These atmospheres are effective in reducing oxides, protecting the base metal, and promoting the flow of brazing filler metal. The low-cost exothermic atmospheres that are widely used in furnace brazing of low-carbon steel are not suitable...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006079
EISBN: 978-1-62708-175-7
... Abstract Metals and alloy powders are used in welding, hardfacing, brazing, and soldering applications, which include hardface coatings, the manufacturing of welding stick electrodes and flux-cored wires, and additives in brazing pastes or creams. This article reviews these applications...