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casting resins

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030023
EISBN: 978-1-62708-349-2
... discontinuous or continuous fibers. The sample preparation methods cover documentation and labeling of samples, sectioning the composite, clamp-mounting composite samples, mounting composite samples in casting resins, and the addition of contrast dyes to casting resins. Information on the molds used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030245
EISBN: 978-1-62708-349-2
... for creating an artifact-free specimen is to first impregnate the strike area under vacuum using an epoxy casting resin, followed by the application of pressure during the cure. This encapsulated area will allow sectioning through the center of the strike and thus hold the fragile material in place, minimizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030193
EISBN: 978-1-62708-349-2
... the sample is that the fragile fracture areas may be further damaged during sample preparation and may potentially cause artifacts. Details of the fracture may also be difficult to observe if the sample is not mounted. When mounting the sample using a casting resin, it is necessary to add a dye...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030223
EISBN: 978-1-62708-349-2
... sandwich composites for analysis, the sample must be carefully sectioned and then impregnated with an epoxy casting resin. If the sample is not mounted, the subsequent grinding and polishing steps can cause damage to the honeycomb, and information will be lost. Most of these sections can be mounted without...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030159
EISBN: 978-1-62708-349-2
... impact loading, the composite may need to be mounted to preserve all of the damage features. In this case, a contrast dye should be added to the casting resin, as described in Chapter 2, “Sample Preparation and Mounting,” in this book. Most analysis of microcracks in composites can be performed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... stress. The chapter also includes a section on the uses of thermoplastic and thermosetting resins and provides information on fabrication processes and fastening and joining methods. engineering plastics joining thermal properties AN ENGINEERING PLASTIC can be defined as a synthetic polymer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780064
EISBN: 978-1-62708-281-5
... injection molding (SRIM), resin transfer molding (RTM), matched metal molding, filament winding, and pultrusion. Some of these processes are also used for noncomposite materials; casting is described separately in the section “ Casting ” in this article. Reaction Injection Molding Reaction injection...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030115
EISBN: 978-1-62708-349-2
... in.). A hard epoxy casting resin should be used for making the mount. The procedure is described and illustrated in Chapter 2, “Sample Preparation and Mounting,” in this book. Backing pieces are necessary on the outside edges of the sample(s) of interest. As with all mounts, it is best if the backing pieces...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
... dyes is not necessary, and color contrast without fluorescing provides the required detail. Fig. 5.12 Composite part that was impact damaged. The composite sample was impregnated with epoxy casting resin that was dyed with Rhodamine B to reveal the details of the microcracks. (a) Slightly...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060183
EISBN: 978-1-62708-355-3
... of the filaments. ASTM D 4018 method I test specimens require a special cast-resin end tab and grip design to prevent grip slippage under high loads. Alternative methods of specimen mounting to end tabs are acceptable, provided that test specimens maintain axial alignment on the test machine centerline...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... in this chapter. The techniques have been used to prepare many types of steels and cast irons and are proven to be effective. Special “metallographic tips” are added to give the reader special instructions that may be helpful in difficult situations. Further details on technique can be found in the Selected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2022
DOI: 10.31399/asm.tb.isceg.t59320011
EISBN: 978-1-62708-332-4
.... Medium- to large-sized castings may need more rigid molds to withstand the weight of the metal poured and also the weight of the cores. Furan resin–based self-setting or air-setting systems that use a catalyst are good choices in such cases. The ability to mold-wash air-set molds with a refractory...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780185
EISBN: 978-1-62708-281-5
... PF, macerated fabric filler 25–65 (4–9) 0.4–0.6 6–9 (0.87–1) 100–160 (15–24) 60–100 (9–15) 95–120 HRM PF, cast, no filler 40–65 (6–9) 1.5–2.0 3 (0.43) 85–115(12–17) 75–115 (11–17) 93–120 HRM Polyester, glass-fiber filler 35–65 (5–9) … 11–14 (1.6–2.0) 140–175 (20–25) 95–115 (14...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060273
EISBN: 978-1-62708-355-3
... resins, 20-30% glass reinforced 117 17 100 14.5 Iron P/M parts; as-sinteredPolyamide-imide 117 17 92 13.3 Polystyrene, 30% glass reinforced 97 14 . . . . . . Zinc die-casting alloys 96 14 . . . . . . Polyimides, unreinforced 90 13 52 7.5 Nylons, general purpose 87...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740047
EISBN: 978-1-62708-308-9
... Conditions Eutectic Phases Pure Metals Alloys Gating Risering Sand Casting Bonded Sand Molds Dry Sand Molds Resin-Bonded Sand Molds Shell Molding Plaster Casting Evaporative Pattern Casting Investment Casting Permanent Mold Casting Die Casting Squeeze Casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... of a continuous-fiber composite. In reality, it is extremely difficult to control the orientation in discontinuous-fiber composites. During processing, resin flow fronts push the fibers around, causing misorientation. In addition, some processes, such as injection molding, mechanically fracture the fibers...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... resins do have definite shelf lives, which if surpassed, influences casting quality. The odor from many of these resins is obnoxious, and therefore, mounting under a ventilation hood is preferred. Some of these resins produce skin damage if contact is frequent. Figure 2-9 Some cold-mounting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410029
EISBN: 978-1-62708-280-8
... impregnated with resins under vacuum to seal the pores. Limitations The limitations of die casting include: Sand cores cannot be used to address pockets or surfaces that do not permit a straight pull of the metal cores (or pins) to create the hollow shape. This limits the design flexibility...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200164
EISBN: 978-1-62708-354-6
... lined dies have a shorter life as they cannot dissipate the heat as rapidly as aluminum. The investment casting method is described in greater detail in Chapter 13 . Shell Molding In the shell process, also referred to as the Croning process, sand grains coated with phenolic novolac resins...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... thermoplastic composites THERMOPLASTIC COMPOSITE FABRICATION PROCESSES are discussed in this chapter. The three main areas covered are consolidation, thermoforming, and joining. The basics of thermoplastic composite materials were discussed in Chapter 3, “Matrix Resin Systems.” 6.1 Thermoplastic...