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molten metal processing

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Published: 30 June 2023
Fig. 4.1 Process flow diagram for molten metal processing and casting More
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340063
EISBN: 978-1-62708-427-7
... Abstract The manufacture of all aluminum wrought products begins with an ingot or a continuous strip solidified from the liquid state. During molten metal processing (MMP), aluminum undergoes a series of operations that are described in this chapter including melting and alloying, recycling...
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Published: 01 December 1995
Fig. 25-5 Elements of the submerged arc process. The arc and the molten weld metal are buried in the layer of flux, which protects the weld metal from contamination and concentrates the heat into the joint. The molten flux rises through the pool, deoxidizing and cleansing the molten metal More
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Published: 30 June 2023
Fig. 4.5 Degassing. (a) Degassing process used for hydrogen removal during molten metal processing. (b) Adsorption of hydrogen by gas bubbles during degassing More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
.... The relatively attractive engineering properties of aluminum—low melting point and castability—quickly led to the adoption of existing casting processes and to developments that broadened the means by which engineered shapes could be produced from molten metal. Iron or steel dies had been used in casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... torches can be used with minimum modification to the existing ladle design. Prior to their integration into steel ladle metallurgy stations, plasma torches had been used primarily for scrap melting and heat-loss compensation before and during continuous casting. 5.4 Molten Metal Processing Molten...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200173
EISBN: 978-1-62708-354-6
... foundries holding the patent or license to use the process. The first process uses a refractory tube, which is attached to a shell or no-bake mold. The mold is placed in a metal container. The exposed end of the tube is submerged into the molten steel bath. A vacuum is applied to the container...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340083
EISBN: 978-1-62708-427-7
... for a detailed description of the process. Green-sand casting uses sand bonded by clay and water; the moisture dries out when molten metal is poured into the mold. Another method is to use resin-coated sands for bonding. This is referred to as shell casting , and it provides better dimensional control than...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
... of superalloys is governed, as is the solidification of all metals, by the laws of the phase diagram. However, the kinetics of the solidification process determine the microstructure that actually is formed. When solidification occurs, solvent-lean alloy forms first and then grows, usually by dendritic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
..., die casting and permanent mold casting are the most important. Sand Casting Sand casting is the oldest known casting process. The molten metal is poured into a cavity shaped inside a body of sand and allowed to solidify. Advantages of sand casting are low equipment costs, design flexibility...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230001
EISBN: 978-1-62708-351-5
... bonds between the filler and the respective components. In these processes, the original surfaces of the components are “eroded” by virtue of the reaction occurring between the molten filler metal and the solid components, but the extent of this “erosion” is usually at the microscopic level (<100 μm...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290023
EISBN: 978-1-62708-306-5
... process that joins metals together by heating them with an electric arc that is established between a consumable electrode (wire) and the workpiece. An externally supplied gas or gas mixture acts to shield the arc and molten weld pool. The GMAW process can be operated in semiautomatic and automatic modes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.9781627083355
EISBN: 978-1-62708-335-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.9781627083515
EISBN: 978-1-62708-351-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080423
EISBN: 978-1-62708-304-1
... included. 16.2 Corrosion Process Molten metal corrosion of a containment metal is most often related to its solubility in the molten metal. This type of corrosion is simply a dissolution-type attack. A containment metal with higher solubility in the molten metal generally exhibits a higher corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310155
EISBN: 978-1-62708-286-0
... not achieve cleaner steel as some believe. In both processes, after nal carbon content has been achieved ferrosilicon is added to reduce the chromium in the slag and have it return to the molten steel. The excellent mixing of the slag and metal in the AOD permits this to be done efficiently. The silicon plus...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440001
EISBN: 978-1-62708-352-2
... Soldering and Brazing Soldering and brazing involve using a molten filler metal to wet the mating surfaces of a joint, with or without the aid of a fluxing agent, leading to the formation of metallurgical bonds between the filler and the respective components. In these processes, the original surfaces...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290165
EISBN: 978-1-62708-306-5
... Abstract Brazing and soldering processes use a molten filler metal to wet the mating surfaces of a joint, with or without the aid of a fluxing agent, leading to the formation of a metallurgical bond between the filler and the respective components. This chapter discusses the characteristics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220281
EISBN: 978-1-62708-341-6
... and fabrication. This chapter summarizes some of the special applications of induction heating, including those in the plastics, packaging, electronics, glass, chemical, and metal-finishing industries. The chapter concludes with a discussion of the application of induction heating for vacuum processes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230221
EISBN: 978-1-62708-351-5
... to have a linear dependence on temperature. Appropriate adjustment of the two variables, process temperature and time, therefore, permits some degree of control over wetting and spreading by the molten filler metal and the thickness of the reaction layer. The strength of bonds produced by chemical...