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resin-bonded sand systems

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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
..., such as bentonites, 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...
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
... Resin and Curing Sand Mixing Mold/Core Making Sand Reclamation and Reuse Wet Reclamation Systems Dry Reclamation Systems Effect of Baking Segregation Additives Washes Combustibles Temperature No-Bake Sand Processing Refractory Coatings for Chemically Bonded Sands...
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
... 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 aggregates, clays, water, and additives in green sand, chemically bonded organic resins, and inorganic binders in self-setting, thermosetting...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... Sand Handling Systems Dry sand molding is sometimes used to make large castings, although resin-bonded molds have largely taken over for this process. In dry sand molding, the water is removed from the mold prior to pouring. The bond is created both by using bentonites, and also through the use...
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
... the resin and MDI, forming urethane bonds that rapidly set the mixture. The catalyst controls the speed of setting. In phenolic-ester-cured systems, the binder is a low-viscosity, highly alkaline phenolic resole resin, and the hardener is a liquid organic ester, which controls the speed of setting. Sand...
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
... in the resin bond allows the use of a finer grain size for a given casting weight than is possible in sand casting. Except for aluminum castings, best results are obtained with sand having a narrow screen distribution, as is suggested by the sieve analyses for the sands given in Table 1 . For aluminum...
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
...-time use or permanent molds for reuse many times. This article lists the various methods used to fabricate expendable molds from permanent patterns. The methods include molding of sand with clay, inorganic binders, or organic resins; shell molding of sand with a thin resin-bonded shell; no-bond vacuum...
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
...-formaldehyde cores are baked at 165 to 175 °C (325 to 350 °F). Fig. 8 Baking speeds of phenolic-resin-bonded versus oil-bonded sand cores Sand Grain Shape, Fineness, and Permeability The shape of the sand grains (angular, subangular, or rounded) influences the flowability of the sand...
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
... Levels and Factors , AFS Trans. , Vol 97 , 1993 , p 297 – 303 2. Lytle C.A. , “Analysis of Volatiles from Foundry Resin Binder Systems,” Master’s thesis, University of Alabama , Tuscaloosa, AL , 1997 3. McKinley M.D. , Final Project Report, University of Alabama...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003459
EISBN: 978-1-62708-195-5
...Types of repair materials for making fiber reinforced polymer-matrix composites repairs Table 1 Types of repair materials for making fiber reinforced polymer-matrix composites repairs Matrix resin systems (a) Wet lay-up Prepreg Low temperature High temperature...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003467
EISBN: 978-1-62708-195-5
... to the sanding operation exhibited smooth, glossy surfaces, intact fibers, and silicon contamination, as well as rounded globules indicative of resin swelling. By comparison, sanded paddles exhibited a dull, whitish surface finish, fiber damage, resin deformation, and no evidence of silicon contamination...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005355
EISBN: 978-1-62708-187-0
... solidification and cooling of castings in sand molds, the casting must be removed from the sand mold. In the case of green sand or resin-bonded sand molds, a considerable amount of energy is required to remove castings and break up lumps of sand still strongly bonded together. In contrast, unbonded sand systems...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003489
EISBN: 978-1-62708-195-5
... in liquid phenolic, polyester, or polyimide resin to achieve the final density, although other resin systems can be used. There are three basic cell configurations: hexagonal, overexpanded, and flexible. For a more in-depth discussion of honeycomb core and its properties, refer to the article “Lightweight...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001466
EISBN: 978-1-62708-173-3
... imprint of the peel ply and failure to bond over most of the surface. A small piece of resin adhered and is identified by the imprint of the fibers. 27× Fig. 5 Examples of good and bad adhesive fillets Fig. 10 Surface of a carbon-epoxy composite after 120 grit abrasive surface...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005308
EISBN: 978-1-62708-187-0
... pattern or a reverse plaster mold made from a master pattern (usually wood). A sealer and a release agent applied to the negative pattern or negative mold surface to prevent the resin from bonding to the mold. The resin system (usually two-part or three-part) is poured into the mold and allowed to harden...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003434
EISBN: 978-1-62708-195-5
... that reduce detectability are: thin materials are less detectable than thicker materials, materials that absorb prepreg resin or bond well to resin are less detectable than those that do not, and all foreign materials are more difficult to detect when porosity (even at acceptable levels) is present...
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
... assembly. Bonded sand molds can be based on inorganic binders, such as clay or cement, or organic resin-based binders. Inorganic binders, which have long been used in the production of foundry molds and cores, include such processes as green sand molding, dry sand molding, skin-dried molds, loam molding...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006335
EISBN: 978-1-62708-179-5
..., good; F, fair; P, poor. Source: Ref 9 Dry resin polymers applied by fusion bonding often are a desirable alternative to the use of liquid organic coatings and are used for many of the same applications as liquid organic coatings. The advantages of the process include the use of resins...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003395
EISBN: 978-1-62708-195-5
... that are assembled with mechanical fasteners. Composite repair requires significant surface preparation. The damaged material is first removed, and the surrounding area is scarfed. A filler or a partially staged or cured bonded preform and a surface patch of several plies of fabric/resin prepreg is applied to return...
Book Chapter

By Don Smith
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006553
EISBN: 978-1-62708-290-7
... Systems, Inc. , 2018 4. “ Photopolymer Resin for Form 1+ and Form 2: Material Data Sheet ,” Formlabs , prepared Sept 18 , 2018 ; revision 06.01.22.2019 5. “ Document 103213, Revision D ,” Technical Data Sheet, Carbon 3D 6. “ Document 107172, Revision B ,” Technical Data Sheet, Carbon...