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centrifugal atomization

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Published: 12 September 2022
Fig. 2 Schematics of various atomization processes. (a) Plasma-melting inert gas atomization. (b) Electrode induction-melting inert gas atomization. (c) Centrifugal atomization. Adapted from Ref 8 More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006084
EISBN: 978-1-62708-175-7
... and research methods. This article describes the key process variables and production factors for the industrial methods: two-fluid, centrifugal, vacuum or soluble-gas, and ultrasonic atomization. It also reviews the effect of atomization methods and process variables on key powder characteristics...
Image
Published: 30 September 2015
Fig. 8 Flow chart showing the relationship between the powder making process and available process routes. Powder making processes such as gas atomization, centrifugal atomization, and plasma rotating electrode process (PREP) produce near-spherical powder that fills volume efficiently, making More
Series: ASM Handbook
Volume: 23A
Publisher: ASM International
Published: 12 September 2022
DOI: 10.31399/asm.hb.v23A.a0006907
EISBN: 978-1-62708-392-8
... induction-melting inert gas atomization. (c) Centrifugal atomization. Adapted from Ref 8 Fig. 3 Schematic of levitation melting and gas atomization. Source: Ref 9 Water Atomization Figure 4 shows a typical schematic of the water atomization process ( Ref 11 ). High-pressure water...
Book Chapter

By G. Keough
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005203
EISBN: 978-1-62708-187-0
... superheat (compared to vacuum arc skull casting). Induction skull melting is also used in atomization of melts for powder production of reactive metals such as titanium. Vacuum Arc Skull Melting Although the possibility of titanium skull melting was considered as early as 1948 and 1949, the first...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005731
EISBN: 978-1-62708-171-9
..., and atomic absorption spectrometry are also discussed. chemical methods crystal structure particle size powder testing sieve method thermal spray coating X-ray diffraction THE RAW MATERIALS used in thermal spray processes are a critical parameter in the finished coating. Lot-to-lot...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006567
EISBN: 978-1-62708-290-7
... of images of the particles, usually taken from an SEM. Particles in typical powder feedstock for additive manufacturing can take on a variety of shapes depending on the process used to make them. Centrifugal atomization processes, such as the plasma rotating electrode process, result in highly spherical...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006042
EISBN: 978-1-62708-175-7
... HIP PM processing route ( Fig. 8 ). Powders near spherical in shape, such as those produced by the plasma rotating electrode process (PREP), inert-gas atomization, and centrifugal atomization ( Fig. 9a ), cannot be compacted using standard die compaction and CIP, but they are excellent candidates...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
... method for producing metal powders for P/M use. There are several variants of this method ( Fig. 11 ), but atomization with high pressure water or gas are the two most common. The use of centrifugal force to break up a liquid metal stream is known as centrifugal atomization; atomization into a vacuum...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006052
EISBN: 978-1-62708-175-7
... is performed after milling to remove the solvent, producing free-flowing granules. Spray drying ( Fig 4 ) is used to dry milled slurries. Drying configurations include atomizing using a pressure nozzle in fountain mode and centrifugal mode. Slurries containing organic solvent require a closed system spray...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005338
EISBN: 978-1-62708-187-0
..., and vacuum induction melting. Various casting processes, such as rammed graphite casting, static and centrifugal casting, and investment casting are reviewed. The article also provides information on the mechanical and chemical properties of zirconium castings. zirconium castings casting casting...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006065
EISBN: 978-1-62708-175-7
... and centrifugal atomization, ultrasonic or pulsed atomization, melt spinning with attrition, and mechanically alloying. Gas atomization is used for several applications. In gas atomization, a high-velocity gas jet disintegrates molten aluminum into droplets that solidify to form the powder. In the Alcoa...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007021
EISBN: 978-1-62708-439-0
.... Source: Carpenter Additive Alternative Chemical and Physical Powder Production Approaches Other approaches include centrifugal atomization, in which a molten stream of alloy is poured onto a rapidly spinning cooled cup or disk, and the plasma rotating electrode process (PREP). In PREP, the tip...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001086
EISBN: 978-1-62708-162-7
... this material have been equal or superior to those made with comparable mechanically comminuted material. Centrifugal atomization, as represented by the plasma rotating-electrode process and the rapid solidification technique is in a less-advanced stage of application development. Powder Consolidation Methods...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006488
EISBN: 978-1-62708-207-5
... main methods of MMC solidification processing. It describes the MCC casting methods, such as sand and permanent mold casting, centrifugal casting, compocasting, and high-pressure die casting. The article discusses the MMC infiltration processes in terms of pressure infiltration casting and liquid metal...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006068
EISBN: 978-1-62708-175-7
..., the fine powder particles suspended in the powder-water slurry in the atomizing tank are allowed to settle so that excess water can be decanted. Removal f the remaining water is accomplished by centrifuging, filtrating, vacuum or heat drying, or combinations of these. The dried powder is then screened...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001069
EISBN: 978-1-62708-162-7
...<break />97.2Cu-2Be-0.5Co-0.25Si Commercial Names Previous Trade Name Beryllium-copper 20C, CA825 Common Name Standard beryllium-copper casting alloy Specifications AMS Investment castings: 4890 Government Sand castings: QQ-C-390, MIL-C-19464 (class 2); centrifugal castings: QQ...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006094
EISBN: 978-1-62708-175-7
... and through a powder drain into a collection container. This method is considered equivalent to vacuum melt gas atomization offered by Homogenous Metals Corp., Clayville, New York. Superalloy powder is also produced using the plasma rotating electrode process (PREP) and the centrifugal atomization process...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006297
EISBN: 978-1-62708-179-5
... in the clay-water bond. Bentonite is the most commonly used bonding clay. Smaller amounts of fireclay (kaolinite) also are marketed to foundries to blend with bentonite. The main ingredient of bentonite is the mineral called montmorillonite. It is built up of alternating tetrahedra of silicon atoms surrounded...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005339
EISBN: 978-1-62708-187-0
... Company, 1965 The initial work on small-sized engines at the Associated Engineering Company demonstrated that aluminum-graphite liners were able to run against aluminum pistons without seizing in the Alpha Romeo and the Ferrari automobiles used in Formula One races. Figure 5 shows a centrifugally...