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cover fluxes

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005300
EISBN: 978-1-62708-187-0
.... It reviews the classification of solid fluxes depending on their use and function at the foundry operation. These include cover fluxes, drossing fluxes, cleaning fluxes, and furnace wall cleaner fluxes. The article also examines the operational practices and applications of the flux injection...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006535
EISBN: 978-1-62708-207-5
... Abstract There are a wide variety of furnace types and designs for melting aluminum. This article discusses the various types of furnaces, including gas reverberatory furnaces, crucible furnaces, and induction melting furnaces. It describes the classification of solid fluxes: cover fluxes...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005303
EISBN: 978-1-62708-187-0
... when an inert, floating, cover flux is used and charges of ingot, clean remelt, and clean and dry turnings are added periodically. Fig. 3 Cutaway drawing of a twin-channel induction melting furnace Coreless Type This furnace has become the most popular melting unit in the copper alloy...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005285
EISBN: 978-1-62708-187-0
... cost. Table 1 lists several important chemical constituents that are included in many fluxes. The specific kinds of chemical fluxes include: Cover fluxes Wall-cleaning fluxes Drossing fluxes The three are commonly employed in the industry and vary in application, depending...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005306
EISBN: 978-1-62708-187-0
... simple cover fluxes such as graphite or vermiculite are sometimes used. However, oxidation is relatively minor unless temperatures are excessive. In the terne plating industry, where lead-tin coatings are applied by hot dipping steel articles, principally for use in fuel systems, a cover flux...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001353
EISBN: 978-1-62708-173-3
... Abstract Shielded metal arc welding (SMAW), commonly called stick or covered electrode welding, is a manual welding process whereby an arc is generated between a flux-covered consumable electrode and a workpiece. This article discusses the advantages and limitations and applications of the SMAW...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005307
EISBN: 978-1-62708-187-0
... easier. Fluxing of Zinc Alloys In the melting of clean, pure zinc and zinc alloys, there is little need for cover fluxes to protect the melt because zinc does not oxidize appreciably or absorb hydrogen at normal melting temperatures. However, chloride-containing fluxes that form fluid slag covers...
Image
Published: 01 January 1993
Fig. 11 Selected electrodes and guides (nozzles) used in electroslag welding. (a) Single flux-covered tube. (b) Cluster of rods taped together. (c) Flux-covered wing nozzle. (d) Flux-covered wing or web nozzle with two tubes More
Image
Published: 31 October 2011
Fig. 15 Selected electrodes and guides (nozzles) used in electroslag welding. (a) Single flux-covered tube. (b) Cluster of rods taped together. (c) Flux-covered wing nozzle. (d) Flux-covered wing or web nozzle with two tubes More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001339
EISBN: 978-1-62708-173-3
... and thus different weld metal properties ( Ref 3 , 4 ). The slag that forms during welding covers the hot weld metal and protects it from the atmosphere. Welding slag consists of the glass-forming components of the flux, as well as inclusions that form in the weld pool, coalesce, rise, and become...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005571
EISBN: 978-1-62708-174-0
... and fume The slag that forms during welding covers the hot weld metal and protects it from the atmosphere. Welding slag consists of the glass-forming components of the flux, as well as inclusions that form in the weld pool, coalesce, rise, and become incorporated into the slag. The need...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005570
EISBN: 978-1-62708-174-0
... that have different compositions of core wire and a variety of flux-covering types and weights. It includes information on gravity and firecracker welding and discusses dry and wet types of underwater welding. Finally, the article reviews the safety considerations to be followed during SMAW...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005580
EISBN: 978-1-62708-174-0
..., such as the use of vapor-generating and/or slag-forming coverings on filler-metal-type electrodes, the covering of the arc and molten pool with a separately applied inert gas, or a granular flux. The use of materials within the core of tubular electrodes also generates shielding vapors and slag. Whatever...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001273
EISBN: 978-1-62708-170-2
... layer or cover on the top of the molten tin bath As a solution, paste, or admixture to tin powder that is applied to the surface of the work prior to wipe tinning The material compositions of two aqueous flux solutions are given in Table 3 . Compositions of flux solutions used in hot dip...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005352
EISBN: 978-1-62708-187-0
... in controlling dross formation and removing oxides from aluminum melts and melting furances. The basic types of aluminum fluxes are: Cover fluxes designed to barrier “blanket” on the surface of molten aluminum Drossing fluxes with wetting action that promotes coalescence of aluminum Melt-cleaning...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005601
EISBN: 978-1-62708-174-0
... , 1 16 , and 0.045 in.) diameters. In the early 1970s, formulations were developed to allow welding in all positions, such as vertical up and overhead. This allowed flux cored wires to be used in applications formerly limited to covered electrodes and the shielded metal arc welding (SMAW...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001355
EISBN: 978-1-62708-173-3
... the classification of electrodes that are not covered by any of the other classifications. Usability type designators for flux-cored electrodes Table 2 Usability type designators for flux-cored electrodes Type Shielding (a) Single or multipass (b) Transfer Impact toughness requirement Polarity (c...
Book Chapter

By Paul T. Vianco
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001401
EISBN: 978-1-62708-173-3
... on process parameters, which can be divided into three groups: the fluxing operation, solder wave properties, and process schedule. It provides information on various solder defects. printed circuit boards solder defects surface-mount technology through-hole technology wave soldering WAVE...
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 precise fit of multiple components and the use of a flux, which allows the filler metal to “wet” the surfaces to be joined. To reduce part count and thereby simplify the assembly operation, the brazing filler metal can be clad to the plate material by a roll bonding technique. This article focuses...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004173
EISBN: 978-1-62708-184-9
... on electronic and electrical components are illustrated by actual field-failure examples. Corrosion and related phenomena cause a variety of failures in electronic and electrical passive components. Although the most pervasive factor in corrosion-related failures is solder-flux residue, environmental...