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phenolic no-bake resins

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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
...-setting organic binders, namely, furan no-bake resins, phenolic no-bake resins, and urethanes. The article provides an overview of gas-cured organic binders. It also illustrates the three commercial systems for sand reclamation: wet reclamation systems, dry reclamation systems, and thermal reclamation...
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
... obsolete) Organic no-bake molding with binders based on acid-cured resins of furan or resoles (phenolic), alkaline phenolic (phenolic ester), acrylic epoxies, and phenolic urethane, which is probably the most significant in North America Thermally cured organic binders such as alkyd oil (also known...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006046
EISBN: 978-1-62708-172-6
... resol resins can be further reacted with phenolic novolac resins to form combinations that are designed for baked-on coatings used as interior can and drum linings, metal primers, and pipe coatings. These coatings have excellent resistance to solvents, acids, and salt solutions. They can be used...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003692
EISBN: 978-1-62708-182-5
... superstructures above the waterline, and in baking formulations as coatings for containers, appliances, and machinery and equipment housings. Alkyd Modification Alkyds are amenable to modification with a variety of other different resins to improve specific properties, such as drying time, color retention...
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
... in production ovens at temperatures of 220 to 260 °C (425 to 500 °F). Different procedures are required for baking cores made with thermosetting resin binders that can be diluted with and are dispersible in water. Combinations of phenolic resin and cereal are frequently used in steel foundries; the cereal...
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
... ( Ref 11 ). Phenolic No-Bake Systems Phenolic no-bake systems are either acid or ester cured. They became popular as alternatives to the furan system in the late 1970s, because they contain low or zero nitrogen levels, eliminating nitrogen damage. In contrast, organic phenolic resins have...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... Chromite sand Zircon sand Heat-cured resin binder processes Shell process (Croning process) Furan hot box Phenolic hot box Warm box (furfuryl/catalyst) Oven bake (core oil) Cold box resin binder processes Phenolic urethane Furan/SO 2 Free radical cure (acrylic/epoxy...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001277
EISBN: 978-1-62708-170-2
... for conventional solvent paints unless the coatings are baked. Powder Paint Powder paint consists of plastic resins, color pigments, and additives. In a mixing and grinding unit, the ingredients are combined in a homogeneous mixture that is heated to the melting point. The molten material is extruded...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006071
EISBN: 978-1-62708-172-6
... on January 29, 1927, stating that the “object of my invention was to produce resins of the polyhydric alcohol-polybasic acid class that can be fully hardened or set at ordinary room temperatures; that is, without baking, which will have greater hardness and elasticity and in general have more advantageous...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006051
EISBN: 978-1-62708-172-6
... be applied by electrostatic spray or by passing the preheated pieces through a fluidized bed of the powder suspended in air. After the powder is applied, the coated pieces are baked. If the resin is a thermoplastic, the particles melt together to form a film. If the resin is a thermoset, the particles...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006077
EISBN: 978-1-62708-172-6
... color; low cost High-temperature cure; formaldehyde emission Fast-bake enamels; stove primers; can and drum coatings Phenol-formaldehyde resols Stable one-component systems; excellent chemical resistance High-temperature cure; brittle; gold color Baked enamels; can, drum, and pail coatings; high...
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
.... The process, known today as lost-foam casting (using loose, unbonded sand), is patented a short time later. Phenolic and furan acid-catalyzed no-bake binder systems are introduced. Ductile iron desulfurization via shaking ladles is developed in Sweden. 1959—General Electric uses the transient heat-transfer...
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
.... The measured average 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...
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
.... Some of the major systems include shell, phenolic urethane no bake, furan SO 2 , warm box, and epoxy SO 2 as the most common organic binders, while silicate and phosphate are the common inorganic binders used for aluminum. In chemical binder molding, clean, dry sand is mixed with the binder...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006006
EISBN: 978-1-62708-172-6
... phenolic (Momentive Specialty Chemicals Inc.) was first invented, several parties saw that this high-baking material could be made into a coating and used inside tanks. The hot-air method of curing it became instantly embraced by the tank-lining industry, and the direct-fired gas furnace with high-capacity...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006009
EISBN: 978-1-62708-172-6
... linear polyesters primarily are used in baking enamels for highly flexible coatings, such as those for coils and cans, with amino resins or other suitable hydroxyl-reactive cross linkers, but also may be used as physically drying binder components in paints. By reacting the terminal groups...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003786
EISBN: 978-1-62708-177-1
... also must not interfere with the etching process itself. Films of a plastic material can also be used. A rather similar result is achieved if the surfaces of the specimen are precoated with a thick layer of phenolic or epoxy resin lacquer, particularly if the assembly is clamped up before the resin...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003362
EISBN: 978-1-62708-195-5
... (N-AEP). Even though these amines will cure at room temperature, T g and subsequent-use temperature are often improved by an elevated-temperature cure or postcure. The enhanced T g of these baked materials however, will always be 10 to 20 °C (20 to 35 °F) below cure temperature...
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
... than molds made from green sand or baked sand, as shown by the following comparison for small steel castings (up to 2.3 kg, or 5 lb, weight) made by three processes: Process Surface finish μm μin. Shell mold 3–6 125–250 Baked sand mold 6–12 250–500 Green sand mold 12.5–25 500...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001278
EISBN: 978-1-62708-170-2
... temperature below 120 °C (250 °F), it is necessary to support the part during the painting and baking process. Another disadvantage of melamine cross-linked systems is susceptibility to environmental etching (i.e., spotting from acid rain), which has become a concern in recent years. It is not the purpose...