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green sand molding

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Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005243
EISBN: 978-1-62708-187-0
... Abstract Green sand molding and chemically bonded sand molding are considered to be the most basic and widely used mold-making processes. This article describes the sand system formulation, preparation, mulling, mold fabrication, and handling of green sand molds. It lists the advantages...
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Published: 01 December 2008
Fig. 28 Cost of shell molding versus green sand molding for production of a chair seat bracket in ascending quantities. Pattern costs not included More
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Published: 01 December 2008
Fig. 30 Cast section of crankshaft from green sand molding and shell-mold casting More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... Abstract This article discusses classification of foundry processes based on the molding medium, such as sand molds, ceramic molds, and metallic molds. Sand molds can be briefly classified into two types: bonded sand molds, and unbonded sand molds. Bonded sand molds include green sand molds...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005252
EISBN: 978-1-62708-187-0
... molding and green sand molding. casting dimensional accuracy green sand molding shell molding tensile strength mold cracking soft molds peelback mold shift shell coremaking sand reclamation resin-sand properties mold defects mold patterns THE SHELL PROCESS was first developed...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005334
EISBN: 978-1-62708-187-0
.... The article discusses the flux process and fluxless process for the melting and pouring of magnesium alloys. It describes the advantages and disadvantages of green sand molding and tabulates typical compositions and properties of magnesium molding sands. The article provides information on the machining...
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Published: 01 December 2008
Fig. 32 Valve plate that did not require machining of slots when it was cast in a shell mold instead of a green sand mold More
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Published: 01 December 2008
Fig. 27 Cost of a conduit elbow produced in various quantities in shell molds and in green sand molds. Pattern and core equipment costs not included More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005242
EISBN: 978-1-62708-187-0
... Abstract This article reviews the basic types of mold aggregates and bonding methods for expendable molds and coremaking. It provides an overview of mold media and the basic types of sands and their properties. The most significant clays used in green sand operations, such as bentonites...
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Published: 01 December 2008
Fig. 31 Pump casting produced with minimum draft in a shell mold When casting had been poured in a green sand mold, shaft portion required a draft angle of 1° 30 min and had to be machined. More
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Published: 01 December 2008
Fig. 6 Comparison of volume shrinkage and dimensional change for flake graphite (FG), compacted graphite (CG), and spheroidal graphite (SG) poured into green sand molds. A 76.4 mm (3 in.) diameter mold was used. Source: Ref 3 More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005259
EISBN: 978-1-62708-187-0
... practices. Pads, auxiliary gates, chills, or blind heads can be used. However, a casting of nonuniform section thickness may require such elaborate mold methods that molding and cleaning costs become too high. Sand Molds When sand molds are used, particularly green sand, it is usually necessary...
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Published: 01 December 2004
Fig. 27 Microstructures of A356 alloy solidified at different cooling rates. (a) Cast in metallic mold (high cooling rate), fine dendrites and network of interdendritic eutectic form. (b) Cast in green sand mold (low cooling rate), coarse dendrites and discontinuous network of interdendritic More
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Published: 31 August 2017
Fig. 1 Comparison of shrinkage behavior in gray, compacted, and ductile iron castings in green sand molds. Source: Ref 5 More
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Published: 01 December 2008
Fig. 29 Cost per pound (top chart) and per casting (bottom chart) for shell versus green sand molding for production of two different castings in ascending quantities More
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Published: 01 January 1990
Fig. 2 Variations from design dimensions for a typical red brass casting. Parts were cast in green sand molds made using the same pattern. All dimensions in inches More
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Published: 01 December 1998
Fig. 2 Variations from design dimensions for a typical red brass casting. Parts were cast in green sand molds made using the same pattern. All dimensions are given in inches. More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005241
EISBN: 978-1-62708-187-0
... for Expendable Molds” in this Volume). Green sand molding is perhaps the most popular molding process. Green sand molds (which are usually never green in color, but black) use natural or synthetic clays with other additives to bond the sand grains together. Green sand molding may be done ther with flasks...
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
... and permanent mold processes. casting clays gravity pouring green sand inorganic binders molding organic resins sand casting THE PROCESSES USED for giving shape to molten iron have a long history. Different types of molding and casting techniques have shown up, been used, or even vanished...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005251
EISBN: 978-1-62708-187-0
... plastic film SAND MOLDING PROCESSES are classified according to the way in which the sand is held (bonded). Most sand casting employs green sand molds, which are made of sand, clay, and additives. Binders are also used to strengthen the cores, which are the most fragile part of a mold assembly...