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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001317
EISBN: 978-1-62708-170-2
...Industrial processes and relevant catalysts Table 1 Industrial processes and relevant catalysts Application Reaction Active catalytic component Chemicals Steam reforming (H 2 production) CH 4 + H 2 O → 3H 2 + CO Ni/Al 2 O 3 (pellet) Methanol synthesis 2H 2 + CO → CH...
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
... 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 in handling sand-resin mixtures for no-bake molds...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003035
EISBN: 978-1-62708-200-6
... physical and mechanical properties, including catalyst, fillers, thickeners, pigments, thermoplastic polymers, flame retardants, and ultraviolet absorbers. It talks about the mixing techniques available for SMC resin pastes, including batch, batch/continuous, and continuous mixing. The article also...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003432
EISBN: 978-1-62708-195-5
...Abstract Abstract This article focuses on epoxy because this resin category has widespread use and because it is tested using quality control measures typical of most resin systems. It explains that a typical resin system will consist of one or more epoxy resins, a curing agent, and a catalyst...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003797
EISBN: 978-1-62708-177-1
... Electrode which has a value of 0.0000 V. Reactions with more than one voltage indicate that results have not been reconciled. Parenthetical materials not needed to balance reactions are catalysts. electrochemical series potential value standard hydrogen electrode CEMENTED CARBIDES belong...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001265
EISBN: 978-1-62708-170-2
...-on-Plastic Cleaning (Optional) Catalyst Promotion (Conditioning) Microetching Catalyst Predip Catalyzation (Sensitization) Acceleration (Activation) Gross Surface Preparation Immediate Preparation for Plating Printed Wiring Boards Decorative Plating-on-Plastic Molded...
Book Chapter

By Mark C. Williams
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003602
EISBN: 978-1-62708-182-5
...) 650 (1200) 600–1000 (1110–1830) Charge carrier H + OH − H + CO 3 2 − O 2− External reformer for CH 4 Yes Yes Yes No No Prime cell components Carbon-base Carbon-base Graphite-base Stainless-base Ceramic Catalyst Platinum Platinum Platinum Nickel...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003366
EISBN: 978-1-62708-195-5
... burned at 822 °C (1510 °F). Lower values indicate greater toxicity. Phenolic resins for composites Table 3 Phenolic resins for composites Composites manufacturing process Resin type (solvent) (a) Viscosity at 25 °C (77 °F) Catalyst Cure temperature Pa · s cP °C °F Filament...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
...) Conventional sulfate bath (a) 25 1 1:05 0:40 0:25 50 2 2:05 1:20 0:55 125 5 5:20 3:20 2:20 Mixed catalyst bath (b) 25 1 0:50 0:30 0:20 50 2 1:40 1:00 0:40 125 5 4:05 2:25 1:45 Fluoride-free bath (c) 25 1 0:40 0:27 0:17 50 2 1:25 0:53 0:37...
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
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... 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) Phenolic ester No-bake...
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
... binders can be heat, catalyst liquid, or gases. The systems are classified in two, based on the basic mechanism as self-hardening or trigger hardened. Self-hardening mixtures (also known as no bake and self-set) use a hardening chemical that is mixed with the sand and binder. The binder and hardener start...
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
... anhydride. In the 1930s, it was discovered that unsaturated polyesters, although possessing reactive double-bond unsaturation, were slow to react with themselves, or homopolymerize. Although responsive to catalysis with peroxide catalysts, a complete curing reaction could be obtained only...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003367
EISBN: 978-1-62708-195-5
... or prepolymers, their approximate cost, and the applications for each of the resin types. Materials suppliers formulate these basic components into proprietary systems by combining different CE resins or blending them with other thermosets or thermoplastics, or by adding catalysts, fillers, and flow...
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
... in Fig. 4 . Fig. 4 Structure of formaldehyde The nature of the resin is greatly dependent on the type of catalyst and the mole ratio of the reactants. The four major reaction steps in phenolic resin chemistry are as follows: The formation of addition compounds from the reaction...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003036
EISBN: 978-1-62708-200-6
..., and the mixture is blown from the gun. Airless pressure pot: The resin and catalyst streams are forced from separate pressure vessels by the internal pressure of the vessel. There are many variants of these chopped-fiber spray guns because the process is so widely used and because several companies...
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
... and warm box applications. Aluminum can be used in prototype tooling together with resistance heating. Diluted silicone emulsions are necessary to provide easy stripping. In gas-cured systems, venting of the pattern must be ensured to evacuate excess catalyst. Core boxes usually consist of a stationary...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003150
EISBN: 978-1-62708-199-3
... obvious, but equally pervasive, are the use of platinum-group metals as catalysts in automotive pollution-control equipment and for making the spinnerettes used in the manufacture of synthetic fibers for clothing; the use of silver for photographic processes; the use of gold, palladium, and their alloys...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005926
EISBN: 978-1-62708-166-5
... carbon concentrations Ammonia Vapor Ammonia dissociates in the endothermic reaction: (Eq 23) 2 NH 3 → N 2 + 3 H 2 with the dissociated ammonia containing 75% hydrogen and 25% nitrogen. Dissociation occurs when ammonia vapor is heated and passed over the proper catalyst...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001244
EISBN: 978-1-62708-170-2
... plating until grounds are clear. Put dummy cathodes in tanks and electrolyze solutions at maximum voltage for 15 to 30 min at start of each day. Check hull cell. Weekly Boil down the save-rinse solution. Check auxiliary catalyst; make additions as necessary. Monthly Check solution...