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Plungers

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Image
Published: 01 August 2013
Fig. 2 Typical glass-mold plungers coated with NiCrBSiC/WC alloys More
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Published: 01 December 2008
Fig. 6 Phases of a shot described by curves for (a) plunger travel versus time and (b) plunger pressure versus time More
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Published: 30 November 2018
Fig. 5 Phases of a shot described by curves for (a) plunger travel versus time and (b) plunger pressure versus time. Source: Ref 4 More
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Published: 01 January 1987
Fig. 756 Brittle in-service failure of diesel engine injector plunger. The part was made of AISI D2 bar. Heat treatment: air cool from 995 °C (1825 °F), cool to −75 °C (−100 °F), doubled temper at 175 °C (350 °F). Microstructure consists of carbides of various sizes dispersed in a martensitic More
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Published: 15 June 2020
Fig. 13 A syringe pump pushes on the plunger of a syringe to extrude viscous material, such as a paste or gel, through the syringe orifice or a dull (pointless) needle. Source: Ref 16 More
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Published: 15 June 2020
Fig. 4 Positive displacement dispensing. The plunger is controlled by a motor to start and stop the material flow. More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005268
EISBN: 978-1-62708-187-0
.... The shot end includes the cold chamber, plunger rod, and plunger tip ( Fig. 2 ). The primary mechanical requirement of the shot end is to provide good alignment so that proper clearance is maintained between the plunger tip and cold chamber. Misalignment will result in a drag, which will affect plunger...
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Published: 01 December 2008
Fig. 3 Operating sequence for the hot chamber die casting process. (a) Die is closed, and hot chamber (i.e., gooseneck) is filled with molten metal. (b) Plunger pushes molten metal through gooseneck and nozzle and into the die cavity. Metal is held under pressure until it solidifies. (c More
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Published: 01 January 1987
Fig. 739 High-cycle fatigue fracture of the end cap for a high-pressure compressor used in a polyethylene process. The forging was made of Armco 15-5PH (UNS S15500), quenched and tempered to the H1075 condition. The end cap was located between the crosshead and plunger of the compressor, where More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001104
EISBN: 978-1-62708-162-7
.... Almost 50% of the total production of cemented carbides is used for nonmetal cutting applications. Their properties also make them appropriate materials for structural components, including plungers, boring bars, powder compacting dies and punches, high-pressure dies and punches, and pulverizing hammers...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
...-overload fractures, impact fractures, microstructure, quench cracking, brittle-in-service failure, hydrogen embrittlement, stress-corrosion cracking, and grain-boundary cracking of tool steel components. These components include diesel engine injector plungers, rivet-heading tools, circular saw blades...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005267
EISBN: 978-1-62708-187-0
... Abstract This article describes the melting process of casting metals used in hot chamber die casting. It discusses the design and capabilities of injection components, such as gooseneck, plunger, and cylinder. The article reviews the distinctions between hot and cold chamber processes...
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Published: 01 November 1995
Fig. 12 Cross-sectional side views of injection molding machines. (a) Screw-type. (b) Plunger-type More
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Published: 01 December 2008
Fig. 3 Shot trace from machine control panel. Process variables monitored are plunger position and velocity and cylinder rod and shot cylinder head pressure. More
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Published: 30 November 2018
Fig. 6 Shot trace from machine control panel. Process variables monitored are plunger position and velocity and cylinder rod and shot cylinder head pressure. Source: Ref 5 More
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Published: 15 June 2020
Fig. 1 Schematics of two extrusion-deposition methods for ceramic feedstock. (a) Paste feedstock extruded using a plunger-syringe mechanism. Source: Ref 64 . (b) Filament feedstock extruded using a squeezing-gear mechanism. Adapted from Ref 65 with permission from Jonathan Odom, Autodesk More
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Published: 01 January 2000
and, through leverage action, causes drag and jamming of plunger rod, producing inaccurate readings. When testing, the specimen must be pressed rigidly on the anvil by the pressure of the minor load. Because of this, only short or lightweight material may be permitted much overhang. More
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006525
EISBN: 978-1-62708-207-5
...-chamber die casting machine. The shot end injects the molten metal (the shot) into the die. This injection must be done at a controlled velocity and pressure. The shot end includes the cold chamber, plunger rod, and plunger tip. The primary mechanical requirement of the shot end is to provide good...
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Published: 01 January 2006
that spring plunger holds strip against top of center form. (d) Cutoff tool cuts part off against cutoff die. At the same time, stock clamp descends farther to form workpiece into shaped cavity at top of center form. (e) As top tool descends, its right- and left-hand lobes bend ends of part straight down More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005239
EISBN: 978-1-62708-187-0
...-pressure die casting, the inlet melt velocity is typically defined by the plunger velocity. However, it is sometimes necessary to consider the flow in the plunger sleeve, requiring a simulation of flow in the plunger sleeve because too much air in the plunger sleeve can affect the melt flow. Furthermore...