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in-furnace filtration

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Published: 30 November 2018
Fig. 29 Example of porous disc filtration apparatus results with in-furnace filtration of alloy 380. Courtesy of Pyrotek More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
... Abstract In the handling of molten aluminum, it is fairly common to use filters as a part of the melting unit and in the gating and/or riser system. This article describes the methods of in-furnace and in-mold filtration, with an emphasis on the filtration of molten aluminum. It discusses...
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
..., drossing fluxes, cleaning fluxes, and furnace wall cleaner fluxes. The article reviews the basic considerations in proper flux selection and fluxing practices. It explains the basic principles of degassing and discusses the degassing of wrought aluminum alloys. The article describes filtration in wrought...
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
..., deoxidation, grain refining, and filtration. The article provides a discussion on these melt treatments for group I to III alloys. It describes the three categories of furnaces for melting copper casting alloys: crucible furnaces, open-flame furnaces, and induction furnaces. The article explains the important...
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
... furnaces or transport crucibles, molten-metal transfer pumps, teeming ladles, and dosing and pouring furnaces. degassing pouring furnaces molten-metal treatments fluxing molten-metal filtration launders tundishes holding furnaces transport crucibles molten-metal transfer pumps teeming...
Image
Published: 01 December 2008
Fig. 22 Porous disc filtration analysis results on 380 die cast alloy. Flux injection in transfer ladle followed by settling and filtration in casting furnace More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005340
EISBN: 978-1-62708-187-0
... % ( C i − C o / C i ) where C i and C o are the concentrations of the specific element at inlet of the filter and after filtration, respectively. Detection methods (sample weight ranging from 0.5 to 30 g) based on the above principle and types of impurities (all sizes...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005923
EISBN: 978-1-62708-166-5
... measurement methods, temperature control, materials handling, and filtration processes during the agitation process. The maintenance of quenching installations is also discussed. agitators computational fluid dynamics fixtures quench tank design quenchants quenching safety precautions MUCH...
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
... used by aluminum foundries to remove and separate inclusions from the molten aluminum alloy prior to casting. These include various methods of fluxing, degassing, and filtration in the furnaces and the gating systems ( Ref 3 , 6 , 7 , 8 , 9 , 10 , 11 ). Any of these techniques will have...
Series: ASM Handbook
Volume: 4F
Publisher: ASM International
Published: 01 February 2024
DOI: 10.31399/asm.hb.v4F.a0007006
EISBN: 978-1-62708-450-5
... described. Much effort is placed on the proper design of the furnace for temperature and atmosphere uniformity, proper temperature control, and exact carbon potential. However, the design of the quench tank can have a drastic effect on the overall system performance, with proper design ensuring proper...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006484
EISBN: 978-1-62708-207-5
... furnaces used for melting aluminum. aluminum casting dross metal recycling metallic scrap refining melting thermal processing ALUMINUM RECYCLING started less than 20 years after the commercialization of the Hall-Héroult process in 1888, driven by the high value and several unique...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005198
EISBN: 978-1-62708-187-0
...-processing operations include in-line filtration, fluxing, and hydrogen gas content control. Crucible Advantages Crucible melting is a simple and flexible process. Crucible furnaces can generally be started or shut down at a moment's notice. With their unique ability to melt, hold, and transfer metal...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005344
EISBN: 978-1-62708-187-0
... be minimized by allowing settling time after furnace cleaning, using degassing and filtration techniques, and avoiding excessive melt temperature. Case Study 2 Figures 4 and 5 are examples of wrinkled oxide skins (aluminum foil near dip well and/or from ladles) and refractory material entrapped...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005350
EISBN: 978-1-62708-187-0
... Abstract This article illustrates the basic components of dry and wet hearth reverberatory furnaces. It discusses stack melters that are used for aluminum metal casting, as they are efficient in sealing the furnace and using the flue gases to preheat the charge materials. The article describes...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005907
EISBN: 978-1-62708-167-2
... Abstract This article provides an overview of the models of two induction heating devices, namely, induction crucible furnace (ICF) and induction furnace with slits, or segmented and water-cooled induction furnace with cold crucible (IFCC). These devices are used for melting with skull...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005932
EISBN: 978-1-62708-166-5
... of agitation, temperature, or pressure. These factors are illustrated in Fig. 1 for a furnace-heated gear that is quenched edgewise in a quiescent volatile liquid. Fig. 1 Temperature gradients and other major factors affecting the quenching of a gear. A, flow of heat from hot core of gear; B...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003119
EISBN: 978-1-62708-199-3
... various exhaust system components. Hardware (e.g., lock components and fasteners), electrical and electronic components (e.g., switches and magnetic clutches), and controlled porosity components for filtration and metering of gases and liquids also consume substantial quantities of P/M stainless steels...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005928
EISBN: 978-1-62708-166-5
... Abstract The atmosphere within a furnace chamber is a basic factor in achieving the desired chemical reactions with metals during heat treating. This article presents the fundamentals of heat treating atmospheres, and describes two groups of atmosphere control, namely, furnace atmosphere...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009017
EISBN: 978-1-62708-187-0
... the mold surface (thus enlarging the mold cavity) and by entraining the dislodged particles of the mold to produce inclusions in the casting. Removing Slag, Dross, and Inclusions This factor includes materials that may be introduced from outside the mold (for example, furnace slags and ladle...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001739
EISBN: 978-1-62708-178-8
... of gravimetric analysis is the quantitative removal of the pure precipitate from the reaction medium for weighing. This is usually accomplished by filtration, followed by drying or ignition to a more stable form. For example, one common problem is coprecipitation, in which foreign ions from the sample solution...