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graphite molds

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Published: 01 December 2008
Fig. 2 Wood pattern to produce a rammed graphite mold. Source. Ref 2 More
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Published: 01 December 2008
Fig. 16 Graphite mold mixture resembling green sand in appearance More
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Published: 01 December 2004
Fig. 9 Zn-0.025Fe alloy, hot graphite mold, slow cooling. Zeta-phase intermetallic compounds. Electrolytic polish. Electrolytic etch: etchant 6, Table 1 (short time). 200× 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
... resins; shell molding of sand with a thin resin-bonded shell; no-bond vacuum molding of sand; plaster-mold casting; ceramic-mold casting; rammed graphite molding; and magnetic (no-bond) molding of ferrous shot. The article tabulates a general comparison of casting methods and discusses the basic...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001082
EISBN: 978-1-62708-162-7
.... It discusses the various types of molding methods, namely, rammed graphite molding, and lost-wax investment molding. The article provides information on the casting design, melting, and pouring practices, and describes the microstructure, hot isostatic pressing, heat treatment, and mechanical properties of Ti...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005187
EISBN: 978-1-62708-187-0
... Abstract This article discusses the categories and subcategories of shape casting processes. These include single-use processes such as sand, plaster, ceramic, and graphite molding; essentially unpressurized multiuse processes, such as permanent mold; and high-pressure metal mold methods...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005337
EISBN: 978-1-62708-187-0
.... It discusses the types of molding methods, such as rammed graphite molding and lost-wax investment molding. The article provides information on the casting design, melting, postcasting, and pouring practices. It describes the microstructure and mechanical properties of Ti-6AI-4V alloy. The article examines...
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
... sand molds to reduce or minimize mold erosion from the molten metal. Excessive mold erosion generally does not occur, because of the relatively slow spinning speeds used. Permanent Molds Two basic types of permanent molds are in use: metal molds and graphite or carbon molds. Because...
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
... covers primarily the rammed graphite process because it is the most widely used process for zirconium cast parts. Processes discussed include mold preparation, melting techniques, static and centrifugal casting, final evaluation, and testing processes, in addition to information on the mechanical...
Image
Published: 01 December 2008
Fig. 5 Comparison of simulated mold-filling patterns with x-ray observation at reduced pressure of 8 kPa and reducing pressure rate of 4.2 kPa/s. A and B, lower and upper part of the casting. Graphite mold and Al-7Si-0.4Mg melt. Source: Ref 11 More
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Published: 01 December 2008
Fig. 18 Effect of firing temperature on the (a) hardness and (b) strength of graphite molds More
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Published: 01 December 2008
Fig. 17 Effect of air drying time on (a) green strength and (b) baked strength of graphite molds More
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Published: 30 September 2015
Fig. 3 Infiltration process for carbide-infiltrated bit head. Key components include graphite mold (16, 22), tungsten carbide powder (28), tungsten powder (30), steel blank (24), and sand components (18). More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005306
EISBN: 978-1-62708-187-0
... <xref rid="a0005306-ref3" ref-type="bibr">(Ref 3)</xref> Titanium castings have been cast in machined graphite molds, rammed-graphite molds, and proprietary investments used for precision investment casting. The principal technology that allowed the proliferation of titanium castings in the aerospace market was the investment casting...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002123
EISBN: 978-1-62708-188-7
... of temperature. Source: Ref 1 Processing, Properties, and Applications Processing Cast cobalt alloys are produced by electric or induction melting under a protective atmosphere, and for cutting tool applications they are preferably cast in permanent graphite molds. However, they can be cast...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005288
EISBN: 978-1-62708-187-0
... assembly, and some of the various design details of the dies and cooling assemblies are described in Ref 1 . Typically, the molds (dies) are fabricated from copper alloy components that may or may not be sleeved with high-quality graphite inserts. When sleeves are used, precise machining and polishing...
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
... explains the sand casting and permanent mold casting of steel. The process design and casting of thin sections are also discussed. thin-wall steel castings castability graphite molds induction melting permanent mold castings sand mold castings steels solidification characteristics melting...
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
...) and the phenolic (novolac) of the shell process (see the article “Shell Molding and Shell Coremaking” in this Volume). Rammed graphite for casting highly reactive metals such as titanium or zirconium Of these, the three most important sand molding methods are shell molding, no-bake molding (phenolic...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006313
EISBN: 978-1-62708-179-5
... surface exhibits some roughness, which depends on the molding materials used in the casting process. The article describes the effects of the casting skin in spheroidal graphite (SG) and compact graphite (CG) irons, as well as the mechanism of casting skin formation. It discusses the physics of liquid...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005258
EISBN: 978-1-62708-187-0
... surface. Permanent Molds The most common materials for permanent molds are steel, copper, and graphite. Steel Molds Steel molds are used to cast large quantities and r some casting alloys that require specific solidification conditions. Steel molds are sensitive to thermal shock; alumina...