1-20 of 186 Search Results for

no-bake molding

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
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
... Abstract No-bake sand molds are based on the curing of inorganic or organic binders with either gaseous catalysts or liquid catalysts. This article reviews the major aspects of no-bake sand bonding in terms of coremaking, molding methods, and sand processing. It discusses the points to be noted...
Image
Published: 01 December 2008
Fig. 1 No-bake molding More
Image
Published: 31 August 2017
Fig. 34 Two views of complex gas porosity resulting from the mold (no-bake, phenolic, urethane)-metal and wet refractory reactions. Used with permission from Ref 13 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
..., are discussed. The article describes the methods of sand bonding with inorganic compounds. It provides a description of resin-bonded sand systems: no-bake binder systems, heat-cured binder systems, and cold box binder systems. The article concludes with a discussion on the media used for expendable molds...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
..., dry sand molds, resin-bonded sand molds, and sodium silicate bonded sand. The article describes the casting processes that use these molds, including the no-bake process, cold box process, hot box process, the CO2 process, lost foam casting process and vacuum molding process. The casting processes...
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
..., and additives used in coremaking. It discusses the curing of compacted cores by core baking and the hot box processes. The article provides an overview of the core coatings, assembling and core setting, coring of tortuous passages, and cores in permanent mold castings and investment castings. It also discusses...
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
... are not discussed in this article. Self-Setting Systems Self-setting, or no-bake, chemically bonded systems are a mixture of sand, bonding agent, and a liquid hardening chemical (catalyst). They are used primarily for mold-making purposes in larger iron castings, but the production of simple, medium-sized...
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
... finish (see the section “Mold Stabilization” in this article). Baking Baking is the final stage of processing. All remaining volatiles are removed, and the colloidal silica left by the hydrolyzed ethyl silicate binder forms a high-temperature bond of SiO 2 that is stable nearly to its melting...
Image
Published: 01 December 2008
Fig. 17 Effect of air drying time on (a) green strength and (b) baked strength of graphite molds More
Image
Published: 01 December 2008
Fig. 4 A comparison of maximum recommended core length versus core diameter for baked sand cores positioned in the mold (a) at the parting line and firmly anchored at both ends, (b) at the parting line but anchored at one end only, and (c) vertical to the parting line and anchored at both ends More
Image
Published: 01 December 2008
Fig. 11 Comparison of maximum recommended core length versus core diameter for baked sand cores positioned in the mold (a) at the parting line and firmly anchored at both ends, (b) at the parting line but anchored at one end only, and (c) vertical to the parting line and anchored at both ends More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009019
EISBN: 978-1-62708-187-0
... of the problems entailed in molding a core. At the top of each illustration, the core box is shown in section after ram-up; in the lower part, the core box has been inverted onto a plate upon which the core rests preparatory to being baked. Fig. 1 Basic principles of core molding. Figure 1...
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
.... 240 molds/h) is delivered to United Danish Iron Foundries in Frederiksvaerk, Denmark. Early adopters report man-hour per ton improvements on the order of 50%. 1965—Oil urethane no-bake binder systems are used for cores and molds. General Electric's Jim Henzel and Jack Keverian predict freezing...
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
... are shell molding and no-bake molding. The shell and no-bake methods are discussed in subsequent articles in this Volume. The base aggregates and types of binders are discussed in the article “Aggregates and Binders for Expendable Molds” in this Volume. Some advantages of green sand molding include...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009018
EISBN: 978-1-62708-187-0
... Abstract This article begins with a schematic illustration of basic principles of sand molding. It discusses the general design factors, such as parting lines, location of radii, bosses and undercuts, and rib locations, of sand molding. The article schematically demonstrates alternative design...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005287
EISBN: 978-1-62708-187-0
... rotating a mold or a number of molds filled with molten metal about an axis. Baked sand, plaster, or graphite molds have been used, but iron and steel dies are most common. Centrifugal castings are generally, but not always, denser than conventionally poured castings and offer the advantage of greater...
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
... silicate-carbon dioxide systems, and phosphate-bonded molds. Organically bonded systems include no-bake binders, heat-cured binders, and cold box binders. However, some molding processes do not use binders. Instead, the sand or mold aggregates are held together during pouring by the pattern itself...
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
... patterns. The methods include: Molding of sand with clay, inorganic binders, or organic resins Shell molding of sand with a thin resin-bonded shell that is baked No-bond vacuum molding of sand Plaster-mold casting Ceramic-mold casting Rammed graphite molding Magnetic (no-bond...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
... operations and significantly reduce the hand finishing required for SMCs. Class A surfaces can be obtained with a minimum number of paint pops after baking. Research is currently being done to apply in-mold coating to deep sections, such as fender extensions. Present technology extends to shapes...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006298
EISBN: 978-1-62708-179-5
... composition and mixture molecular weight of the gas evolved within 2 min after pouring metal into phenolic urethane cold box (PUCB) and phenolic urethane no-bake (PUNB) bonded sand molds, as shown in Table 1 . The results in Table 1 show that the binder gas generated during pouring of different alloys...