1-20 of 418 Search Results for

liquid metal pouring

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
Image
Published: 31 August 2017
Fig. 10 The depth of liquid metal in the pouring basin pressurizes the whole filling system and thus must never be allowed to fall below the minimum fill level. The sprue diameter and taper depend on this depth, and the areas A 1 and A 2 can be calculated from it. More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005292
EISBN: 978-1-62708-187-0
... Abstract High-pressure die casting is a fast method for the net shape manufacturing of parts from nonferrous alloys. This article reviews the automation technologies for the different stages or steps of the process. These steps include liquid metal pouring, injection, solidification, die open...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003171
EISBN: 978-1-62708-199-3
.... Fig. 6 Isoconcentration profile lines in an Fe-25Cr-20Ni columnar dendrite showing that the chemical concentration of elements is not constant within the dendrite. When metal is poured into a mold, the liquid has a velocity from the pouring operation. In addition, as the metal cools...
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
... Abstract Aggregate molding, or sand casting, is the gravity pouring of liquid metal into a mold that is made of a mixture molded against a permanent pattern. This article summarizes the most important materials in the process of sand casting of cast iron, including different types of molding...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006303
EISBN: 978-1-62708-179-5
..., a damage-limitation exercise. The requirement of limiting the speed of the liquid is usually impossible to meet because the normal pouring of liquid from any height over approximately 10 mm (0.4 in.) results in the rapid acceleration of the metal to speeds well above the danger speed of 0.5 m/s (20...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006508
EISBN: 978-1-62708-207-5
... have proprietary additives, and they can be made by different processes. They decompose differently and at different rates when molten metal is poured through the resultant molded foam segments. As a result, the probability of trapping liquid styrene in the casting is also different. Use a filling...
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
..., where the metal can then solidify to form the desired casting shape. The basic components of a simple gating system for a horizontally parted mold are shown in Fig. 1 . A pouring cup or a pouring basin provides an opening for the introduction of metal from a pouring device. A sprue carries the liquid...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.9781627082075
EISBN: 978-1-62708-207-5
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005254
EISBN: 978-1-62708-187-0
..., when compaction is complete, the flash can be transferred to open pressure vessels where molten metal is poured into the sprue cup. During this filling event, it is possible to pull a slight vacuum from the plenum in the bottom of the flashes, if so designed, to more effectively remove the liquid...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003170
EISBN: 978-1-62708-199-3
... Abstract Metal casting is the manufacturing method in which a metal or an alloy is melted, poured into a mold, and allowed to solidify. Typical uses of castings include municipal hardware, water distribution systems (pipes, pumps, and valves), automotive components (engine blocks, brakes...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... out of the mold at the parting line. Weights are placed on the mold before pouring to prevent the cope from floating on the liquid metal when the casting is poured. Cores are used to make the hollow parts of castings, such as the holes of a pipe fitting or the air path in an automotive intake...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005220
EISBN: 978-1-62708-187-0
... bifilms occur mainly during turbulence involved in the pouring of liquid metals, they similarly can be avoided by avoiding turbulence. Although the effects of bifilms can be reduced (but often not eliminated) by expensive postcasting operations such as hot isostatic pressing or working, the major future...
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
... by regulating the metal pour rate from the ladle. The height of the liquid head in the tundish makes the flow (pour rate) out of the tundish nozzle a fixed rate. For special-quality steels or other melts with stringent surface and cleanliness requirements, shrouding is commonly employed to protect the steel...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
... are the essential variables to be controlled when pouring gray iron. Removal of slag and dross from the liquid iron surface reduces the possibility of inclusion-type defects. A variety of metal-pouring techniques are employed in the gray iron foundry. Each technique should enable the operator to maintain a constant...
Image
Published: 31 August 2017
Fig. 2 Entrainment of at least 50% of air into the liquid metal from a bottom-teemed ladle, contrasted with zero air and zero oxide intake for contact pouring More
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
.... Castability of Steel Castability of an alloy is influenced by four parameters: Liquid metal fluid life (typically compared as fluidity from spiral tests) Solidification shrinkage Slag/dross formation tendency Pouring temperature These parameters may be interrelated in various ways...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003175
EISBN: 978-1-62708-199-3
... in the casting requires that the metal enter the mold cavity in a non-turbulent manner. As this is not possible using gravity pouring methods for most castings, because the head height of sprues accelerates the metal to speeds where turbulent flow takes place, counter-gravity or liquid-level mold filling...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005277
EISBN: 978-1-62708-187-0
... of pouring. No downhill flow (either falling or sliding) No horizontal flow (of any significant extent) The liquid metal front must continue to advance at all points on its surface. If it stops, a thick surface film has the opportunity to form and thus resist the restarting of the flow at some later...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003784
EISBN: 978-1-62708-177-1
... occurs in the bulk of the liquid. Nucleating agents added to the melt will promote nucleation at many sites to produce a fine grain structure. If the mold shape is intricate, it may be necessary to pour the liquid metal at a high temperature to prevent blockage of some of the channels by freezing...
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
... in their effect on castability and the properties of the casting. Aluminum oxide is present in virtually all aspects of aluminum alloy casting production, because aluminum has a high oxidation potential. Prime metal in either liquid or solid form, alloy additions, and so on will always have an aluminum oxide...