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sand mullers

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Published: 01 December 2008
Fig. 3 Two-muller system for resin coating of shell sand by the hot process. See text for discussion of hot coating. More
Book Chapter

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
.... This includes the sand muller or mixer, sand cooling equipment, magnetic separation and/or screening, and dust collection equipment. The coating action and strength development is controlled by the condition of the mixing and/or the muller equipment. Failure to monitor the equipment and to maintain it adds...
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
... High viscosity, which can cause problems in handling Require special equipment to introduce hot air or hot sand into the muller Flake and lump resins Fastest coating cycle Excellent strength properties Minimum caking tendency (a) Contain wax, which eliminates addition of wax...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... the molding operation. Usually, a foundry will prepare a mix of both Southern and Western bentonites to achieve a sand that is optimized for the castings it makes. The sand, water, and clay are mixed in a muller for a period of one to two minutes; during this time the clay/water mixture coats the sand. Water...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005354
EISBN: 978-1-62708-187-0
... (crusting). Molds or cores can be produced from the prepared x with mechanized equipment or manual methods. Mixing and Handling The sand, sodium silicate, and additives for carbon dioxide molds and cores are mixed in conventional mullers. Because the viscosity of sodium silicate increases...
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
... its ability to draw deep pockets. However, use of cereals makes shakeout more difficult, and excessive quantities make the sand tough and can cause the sand to form balls in the muller. Because cereals are volatile, they can cause gas defects in castings if used improperly. Sand Properties...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005244
EISBN: 978-1-62708-187-0
... the molding-sand system and may well be a significant portion of the system sand. Under these conditions, a sand suitable for both molds and cores is desirable. Sand Mixing Sand mixing is easily accomplished for all of the processes except the oven-bake and shell processes. Special mullers are required...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005186
EISBN: 978-1-62708-187-0
...., Easton, Pa. 1912—The first muller with individually mounted revolving mullers of varying weights is marketed by Peter L. Simpson. Sand slinger is invented by E.O. Beardsley & W.F. Piper, Oregon Works. 1915—Experimentation begins with bentonite, a colloidal clay of unusually high green and dry...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006533
EISBN: 978-1-62708-207-5
... Abstract Sand casting processes are typically classified according to the type of binder present in the molding sand mixture. This article discusses common sand casting processes and design considerations related to shape, gating, feeding, and pattern making methods. It describes...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006571
EISBN: 978-1-62708-290-7
... exist globally. Currently, foundry sand is the most prominent category of BJAM ceramic, which has been adopted for broad applications in real-world manufacturing. Sand-printing BJAM systems tend to have larger build envelopes, with maximum dimensions up to 4000 mm (160 in.) in some current systems...
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
...) Green sand is the earliest and probably the most widely known material for producing a sand mold, mainly for iron castings. To make a green sand mold, it is necessary to have the following materials: molding aggregate, clay, water, and additives. Green sand usually is mixed in muller-type continuous...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005327
EISBN: 978-1-62708-187-0
...) Class Type Designation Mechanical requirements (e) Hardness, HB Typical section thickness, max Sand cast, min Chill cast, min Hardened, min Softened, max in mm I A Ni-Cr-HC 550 600 600 … 8 200 B Ni-Cr-LC 550 600 600 … 8 200 I C Ni-Cr-GB 550 600 600 400 3...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005249
EISBN: 978-1-62708-187-0
...-integrity parts too large to be investment cast. Plaster Molding PLASTER MOLD CASTING is a specialized casting process used to produce nonferrous castings that have greater dimensional accuracy, smoother surfaces, and more finely reproduced detail than can be obtained in sand molds or coated...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006328
EISBN: 978-1-62708-179-5
... engagement depth (1.2 times diameter instead of 1.5 times diameter) and therefore shorter bolts Ability to use fracture-splitting ( Ref 1 , 2 ) Reduced oxidation rate at elevated temperatures Less sand burn-in due to higher surface tension In comparison to ductile iron, CGI provides...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0007019
EISBN: 978-1-62708-439-0
... technologies that is available for these other components is binder jetting. Manufacturing sand casting molds for large components is now possible. Although the dimensions for new designs are increasing every day, there are already printers on the market that could produce these components. Further development...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006341
EISBN: 978-1-62708-179-5
... greater toughness. A special grade, class I type C, has been developed for producing grinding balls and slugs. Here, the nickel-chromium alloy composition has been adapted for chill casting and specialized sand casting processes. The class I type D (Ni-Hard 4) alloy is a modified nickel-chromium iron...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.9781627081627
EISBN: 978-1-62708-162-7
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006386
EISBN: 978-1-62708-192-4
... plowshares with various hardness under soil moisture content of 8% and 11%. Adapted from Ref 14 Bobobee and Kumi ( Ref 15 ) simulated the wear of tillage tools in soil obtained from five different places in Ghana on a test rig. The soil samples varied in sand and clay content as shown in Table 1...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... angle. Surface Preparation Parts must be thoroughly cleaned before spraying or dipping. Oily spots prevent adherence of the coating and cause blistering or spalling during firing. When sand blasting is used, the abrasive must be free of contaminants. Sharp workpiece edges should be rounded...