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ceramic foam filters

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Published: 01 December 2008
Fig. 6 In-mold ceramic foam filters More
Image
Published: 30 November 2018
Fig. 23 (a) Ceramic foam filter. (b) Bonded-particle filter. Courtesy of Pyrotek More
Image
Published: 01 December 2008
Fig. 9 Ceramic foam filter, convergent flow More
Image
Published: 01 December 2008
Fig. 12 Two crankshafts produced using a ceramic foam filter positioned vertically in the drag just downstream of the sprue. Casting yield is 91%. More
Image
Published: 01 December 2008
Fig. 15 Cross section through a runner bar containing a ceramic foam filter. Particle capture occurs at the front face (top) and inside the filter. The alloy is aluminum-base LM25. More
Image
Published: 30 November 2018
Fig. 20 Ceramic foam filter shapes used in gating systems in foundry casting. Courtesy of Selee Corp. 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
... filters, including bonded-particle filters, cartridge filters, and ceramic foam filters. It lists the factors that are important in achieving optimum performance of any in-furnace filtering application. The article concludes with information on filtered metal quality and the methods of evaluation...
Image
Published: 01 December 2008
Fig. 14 Several common filtration and flow modification devices (from left to right): strainer core, extruded ceramic filter, ceramic foam filter, mica screen, and woven fabric screen. The two types of ceramic filters are by far the most widely used. More
Image
Published: 30 November 2018
Fig. 19 Pressed, foamed, and extruded ceramic filters. Courtesy of Selee Corp. More
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
... ceramic material and are more easily handled/replaced than in the larger in-line vessel degassers ( Fig. 9 ). Hydrogen-removal results with this system are similar to those achieved with the larger and more complex degassing vessels. A salt-flux feed system, Salt-ACD (Rio Tinto Alcan), has been...
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
.... Machine tool life can be increased. Machine stock allowances can be reduced. Casting physical properties can be increased. Casting surface finish can be improved. Reliability of the casting process can be increased. Fig. 12 Two crankshafts produced using a ceramic foam filter...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005193
EISBN: 978-1-62708-187-0
... to separate from the charge returns. Ceramic foam filters with consistent pore size and structural integrity are being increasingly used for those alloys from which definite cost benefits can be derived ( Ref 3 , 4 , 5 ). Gating Methods Gating and pouring practice has been known to create...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005221
EISBN: 978-1-62708-187-0
..., as described by Cox and coworkers ( Ref 7 ). The valve in this case consisted of a thin sheet of ceramic paper that was supported on a ceramic foam filter. After the sprue was filled, the ceramic paper was lifted clear by raising a wire hook attached to the edge of the paper. The use of a sheet steel slide...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006495
EISBN: 978-1-62708-207-5
... widespread use in everyday life for cushioning, insulating, damping, constructing, and filtering purposes and in many other applications. Such materials are known to have interesting property combinations, for example, high stiffness in conjunction with a very low specific weight ( Ref 1 ). Cellular or foam...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006093
EISBN: 978-1-62708-175-7
... mechanical properties metallic foams open- pore metal foams solidified metal foams syntactic metal foams FOAMS AND OTHER HIGHLY POROUS MATERIALS with cellular structure find widespread use in everyday life for cushioning, insulating, damping, constructing, and filtering purposes and in many other...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005200
EISBN: 978-1-62708-187-0
... to cleanliness is the pouring of the melt. Ceramic foam filters are used in some master metal operations to remove relatively large melt inclusions by means of entrapment. Foam filters are most effective where extremely high pour rate conditions and gross cleanliness problems prevail. Filter performance often...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001324
EISBN: 978-1-62708-170-2
... by cartridge or bag filters. These pumps deliver solution to a manifold that feeds an array of nozzles located near the tank walls. These nozzles should be oriented to maximize solution flow past the parts. Air sparging is not acceptable with many aqueous solutions due to the potential for foaming. When air...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002128
EISBN: 978-1-62708-188-7
...; ceramic tooling is particularly sensitive in this regard The cooling from cutting fluids is generally related to their thermal properties. In general, cooling efficiency is less for an oil than for an emulsion and is greatest with a water solution. Frictional effects, however, may complicate...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006134
EISBN: 978-1-62708-175-7
... fibers, foam, perforated sheet, or sintered woven wire screen may be selected as alternatives to porous PM materials depending on the application ( Ref 2 ). Metal fiber/screen composites, screen/powder composites, and fiber/powder composites are also sintered to form porous media ( Ref 3 , 4 , 5...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... have been commonly used for filtration and reduction of metal velocity. However, reticulated ceramic foam filters have proven to be much more effective in not only entrapping potential inclusions but also in reducing metal velocity and pouring turbulence. When properly applied, gating system filters...