1-20 of 114 Search Results for

molten-metal filtration

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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
... the factors that influence the formation of inclusions. The article describes the three basic methods of mechanically removing or separating inclusions from molten metal. The methods include sedimentation, flotation, and positive filtration. The article provides a discussion on the types of molten-metal...
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
... Abstract This article discusses various molten-metal treatments, namely fluxing, degassing, and molten-metal filtration. It focuses on various molten-metal handling systems for transporting, holding, or delivering molten metal to the mold/die system. These include launders, tundishes, holding...
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
... by partial pressure diffusion. Rotary degassers provide the finest dispersion and intermixing of metal and fluxes for these purposes. Molten metal filtration for the removal of particulate contamination, introduced in the 1950s, also has grown in importance and application. Specific elements...
Image
Published: 01 December 2008
Fig. 14 Typical pressure filtration curves representing metal cleanliness values as a function of different fluxing treatments. Dirtiest molten metal is given by curve 5 (rotary degassing without any flux usage). Cleanest metal is given by curve 8 (rotary flux injection). 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
... Aluminum: Mechanical, Electromagnetic, and Acoustic Techniques , AFS Trans. , Vol 107 , 1999 , p 727 – 736 4. Enright P.G. , Hughes J.R. , and Pickering J. , “Characterization of Molten Metal Quality Using the Pressure Filtration Technique,” Paper No. 03–086, American Foundry...
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
... Abstract Aluminum fluxing is a step in obtaining clean molten metal by preventing excessive oxide formation, removing nonmetallic inclusions from the melt, and preventing and/or removing oxide buildup on furnace walls. This article discusses the solid fluxes and gas fluxes used in foundries...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006099
EISBN: 978-1-62708-175-7
... for metal infiltration include dip infiltration, contact filtration, gravity-feed infiltration, and external-pressure infiltration. In dip infiltration ( Fig. 1 ), the skeleton body is partly immersed into a molten metal bath contained in a crucible, where it functions as a wick. Liquid is drawn...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001225
EISBN: 978-1-62708-170-2
... to 1200 °F), substrates to be cleaned are restricted to those materials that are compatible with the operating temperatures of the various processes. Because these baths are also chemically active, the substrate must also be chemically compatible with the various molten salt systems. While most metals...
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
...-ram baler, which is more commonly used for processing metal scrap than single-ram units. Improvements in recent years include better wear resistance, improved control systems that minimize the need for an operator, and flooded suction pumps and sturdier filtration systems for better hydraulics...
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
... in premature freezing, producing surface defects (for example, cold laps) or incompletely filled sections (misruns). Superheating of the molten metal will increase fluidity and retard freezing, but excessive superheat can increase problems of gas pickup by the molten metal and exaggerate the thermal...
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
... the various factors for improving and maintaining furnace efficiencies. It explains the benefits of circulating molten metal in reverberatory furnaces and circulation methods. aluminum metal casting dry hearth reverberatory furnace reverberatory furnace stack furnace wet hearth reverberatory furnace...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005286
EISBN: 978-1-62708-187-0
... Abstract Ingot casting is the vital conduit between molten metal provided by primary production and recycling and the manufacture of aluminum and aluminum alloy products. A number of ingot casting processes have been developed to ensure the soundness, integrity, and homogeneity required...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006485
EISBN: 978-1-62708-207-5
... Abstract Ingot casting is the vital conduit between molten metal provided by primary production and recycling, and the manufacture of aluminum and aluminum alloy products. This article discusses various ingot forms, such as remelt ingot, billets, ingots for rolling, fabricating ingot...
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
... furnaces tilting movable furnaces CRUCIBLES, in the form of well-fired clay pots, were present at the dawn of the metals industry, some 6000 years ago, and gave early metal workers the ability to melt metal in a durable container that could then be used to pour the molten material into a mold. Few...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004158
EISBN: 978-1-62708-184-9
... and 1700 °F). High-temperature hot corrosion is caused by the formation of alkali metal salts, such as sodium sulfate (Na 2 SO 4 ) and potassium sulfate (K 2 SO 4 ), which melt and form a liquid on the surface. This molten salt attacks the oxide scale, destroying the protection normally afforded...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005287
EISBN: 978-1-62708-187-0
... inclusions. Reductions in dissolved hydrogen content and in suspended included matter are normally accomplished through treatment of the melt before pouring, as discussed in the following articles in this Volume: “Degassing” “Molten-Metal Filtration” “Aluminum Fluxes and Fluxing Practice...
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
... solubility induction furnaces fluxing metal refining grain refining filtration copper casting alloys open-flame furnaces ALL COPPER ALLOYS can be successfully cast in sand. Sand casting allows the greatest flexibility in casting size and shape and is the most economical casting method if only...
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
...: Exogenous: those derived from external causes Indigenous: those that are native, innate, or inherent in the molten metal treatment process Exogenous Inclusions Slag, dross, entrapped mold materials, and refractories are examples of inclusions that would be classified as exogenous. In most cases...
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
... Abstract The International Committee of Foundry Technical Associations has identified seven basic categories of casting defects: metallic projections, cavities, discontinuities, defective surfaces, incomplete casting, incorrect dimension, and inclusions or structural anomalies. This article...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006078
EISBN: 978-1-62708-175-7
... metal or titanium alloys in a molten salt (CaCl) ( Fig. 13 ). Fig. 13 The FFC-Cambridge process. Source: Ref 14 The FFC process was developed by Prof. Derek Fray, Dr. Tom W. Farthing, and Dr. George Zheng Chen at the University of Cambridge. It works by placing a metal oxide electrode...