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brazing paste additives

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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
..., 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 and the specific powder properties and characteristics they require. References...
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
... or temperature through use of a deoxidizing additive 565–925 1050–1700 All brazeable ferrous and nonferrous metal, except those with aluminum or magnesium as a constituent. Also used to braze carbides FB3-D Paste BAg, BCu, BNi, BAu, and RBCuZn Borates, fluorides Similar to 3-C, but with a higher active...
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
... with aluminum or magnesium as a constituent. Also used to braze carbides FB3-C Paste BAg and BCuP Borates, fluorides, boron Similar to 3-A, but with capability for extended heating times or temperature through use of a deoxidizing additive 1050–1700 565–925 All brazeable ferrous and nonferrous metal...
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
..., distortion, and joint structure must be considered. Table 1 compares the characteristics of the most commonly employed brazing/heating methods. Additional selection guidelines for these processes are given below. More detailed information on these brazing methods is given in the articles that follow...
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
..., the brazing filler metal, which can be in the form of a foil, a paste, or a powder that has been consolidated into a sheet using a polymer carrier, is inserted between the plate and fin, and a multiple stack of plate, brazing foil, and fin is fixtured for brazing in a furnace. This complex assembly requires...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001455
EISBN: 978-1-62708-173-3
... brazing, the flux acts as a heat transfer medium, in addition to its fluxing action, to bring the aluminum parts to final temperature for brazing. Powdered fluxes are mixed with liquids and powders to form pastes. Pastes can be mixed in the brazing operation or they can be bought premixed from several...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001344
EISBN: 978-1-62708-173-3
... of the parts to be joined is heated to a temperature of at least 450 °C (840 °F). The assembled parts and brazing filler metal reach a temperature high enough to melt the filler metal (foil, wire, paste, platings, etc.) but not the parts. The molten filler metal, held in the joint by surface tension...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006529
EISBN: 978-1-62708-207-5
... from flat wire, foil, and flux-coated brazing filler metal foil. Their geometry is adapted to the shape of the joint to be brazed. Paste is a ready-to-use blend of flux and powder filler metal together with a binder to enable automated dispensing. No additional fluxing is required. Another broadly...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001450
EISBN: 978-1-62708-173-3
... in the compound form of paste; plastic-bonded tape (brazing filler metals); and rosin-core wire. Conventional paste forms of joining alloys, which consist of a filler-metal powder, fluxing agent, and a binder/solvent, are applied at externally accessible locations of the clearance between the base-material...
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
... temperature, °C (°F) 1175 ± 5 (2150 ± 10) Brazing temperature, °C (°F) 1120 ± 5 (2050 ± 10) Hydrogen dew points, °C (°F) −75 (−100) (c) ; −60 (−75) (d) Hydrogen flow rate, m 3 /h (ft 3 /h) 11 (400) Filler metal (e) BCu-1 wire, BCu-2 paste Conveyor travel speed, m/h (ft/h) 6 (20) Time...
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
... engine oil cooler manufactured with clad brazing materials In a typical heat-exchanger assembly operation, the components are formed, cleaned, assembled, and fixtured prior to furnace brazing. During the assembly process, the brazing filler metal, which is often in the form of a wire, foil, paste...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001451
EISBN: 978-1-62708-173-3
... component, in order to ensure that the finished part will withstand the intended service conditions. The brazed joint design is another factor in filler-metal selection. Most filler metals are available in either wrought forms (wire, strip, or preformed part) or as a paste (powdered metal in a binder...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006119
EISBN: 978-1-62708-175-7
... Ancorbraze 72 braze powder 40 41 15 1.8 1.5 1.0 max 899 1650 982 1800 … … Cubond SB C-458 braze paste 35–43 bal 11–18 1.5–2.5 0.5–1.5 … … … … … 1120 2050 Source: Ref 4 , 5 Maximum solubility of slag-forming elements in ferrite and austenite Table 2 Maximum...
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
... condition, vapor degreasing may be sufficient to remove machining oils, handling oils, and liquid penetrant fluids to yield a sound, clean surface for brazing. If, on the other hand, one or both of the surfaces to be brazed is not a machined surface, then additional chemical cleanings should be employed...
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
... metal needed, and a preformed ring, slug, or shim should be designed to provide the correct amount of filler metal. A paste form of filler metal also can be used. Fixtures may be necessary to hold parts in the proper alignment during brazing. They should be lightweight and should not hinder...
Book Chapter

By Daryl D. Peter
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001388
EISBN: 978-1-62708-173-3
... are cleaned. The process technician must work closely with the designer to ensure that the part design will not trap flux or air during brazing. In addition, the process technician is typically responsible for the choice of materials used in fixturing (ensuring that they are compatible with the material...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0009239
EISBN: 978-1-62708-173-3
... alloy having lower liquidus temperature. Use double-step thermal cycle with short holding time for brazing. Use additional diffusion treatment after brazing. Erosion of base metal (especially in the fillet area) Use Ti-Zr-Cu-Ni brazing alloy instead of Ti-Cu-Ni. Decrease quantity of brazing...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003056
EISBN: 978-1-62708-200-6
...-state bonding (and possibly additional heat treatment). Source: Ref 57 Fig. 14 Relationship between the joint strength and the primary brazing variables for structural ceramics joined by active filler metals Fig. 16 Schematic of SQ brazing process, in which constituents are set...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001457
EISBN: 978-1-62708-173-3
... and its purity. In addition, many structural ceramics have little or no open porosity, whereas many carbon materials have significant amounts of open porosity. Such porosity complicates the brazing process by wicking filler materials away from a joint. On the other hand, carbon materials have higher...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006108
EISBN: 978-1-62708-175-7
... an E70S filler wire. Fig. 7 High-strength gas metal arc weldment between an FN-0205 steering gear (6.9 g/cm 3 ) and an AISI 1035 steel shaft using an E70S-type filler wire Materials containing sulfur additions should be avoided for welding and brazing applications. The sulfur can migrate...