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vacuum-assisted resin injection

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
...-rate commercial process used primarily to make long fiberglass/polyester parts of constant cross section. Liquid molding includes resin transfer molding, vacuum-assisted resin transfer molding, and resin film infusion. These processes use a dry preform that is then injected with a liquid resin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780064
EISBN: 978-1-62708-281-5
... n n n y y     Prepreg 0.5–5 0.07–0.75 30 3370 6.0 65 y n n y n n n n y y     Vacuum bag 0.1 0.015 n/a n/a … … n n y y n y n n n y Hand lay-up 0 0 n/a n/a … … n n y y n y n n n y Injection     Powder 100 14.5 10 1120 0.1 1.1 y...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
...%), and MoS 2 (up to 15%). Phenolics Phenolics are injection molded resins compounded with various mineral and glass fillers, glass fibers, and lubricants such as PTFE and graphite. Phenolics are used in applications requiring dimensional stability improved heat resistance. Laminated Phenolic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
...-strength material. High-modulus materials are also considerably more expensive than the standard-modulus materials. In addition, more expensive cyanate ester resins are often specified, because they absorb less moisture and are thus more dimensionally stable and less prone to outgassing in the near-vacuum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
.... Since this is a matched-die process, it is capable of holding very tight dimensional tolerances. The die can contain internal heaters or be placed in a heated platen press for cure. Other variations of this process include vacuum-assisted resin transfer molding (VARTM), in which a single-sided tool...
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
..., crucible, and vacuum melting, and common casting techniques such as sand casting, plaster and shell casting, evaporative pattern casting, investment casting, permanent mold casting, cold and hot chamber die casting, squeeze casting, semisolid metal processing, and centrifugal casting. casting...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000167
EISBN: 978-1-62708-312-6
... Abstract This chapter describes secondary processes employed in the production of powder-metal stainless steel parts, including various machining operations, welding, brazing, sinter bonding, resin impregnation, re-pressing and sizing, and surface finishing. It also discusses the factors...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040030
EISBN: 978-1-62708-428-4
... witness coupon may be impregnated with a low viscosity resin under vacuum. For later observation of pore and void features, a fluorescent dye can be added to the transparent epoxy, which adds contrast under UV illumination, effectively highlighting those features for optical observation. The vacuum...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870235
EISBN: 978-1-62708-314-0
... any gross organic contaminants. In cases where a peel ply is not used, some type of light abrasion followed by a dry wipe (or vacuuming) is required to break the glazed finish on the matrix resin surface. The use of solvents to remove residue after hand sanding or grit blasting is discouraged due...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780028
EISBN: 978-1-62708-281-5
... Fig. 13 Representative structures of thermoset plastics. Ref 8 Normally thermoplastic resins, such as PE, can also be cross linked after the shaping operation. Cross linking of PE does not introduce many cross links because PE is quite unreactive. The few cross links that form actually...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290067
EISBN: 978-1-62708-319-5
... is true for binder formulations. The binder designed for slip casting is significantly different from the binder designed for powder extrusion, which is also different from the binder applied in powder injection molding. The desired response determines the formulation for each shaping approach. A few...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the use of thermoset and thermoplastic resins in polymer matrix composites. It begins by explaining how the two classes of polymer differ and how it impacts their use as matrix materials. It then goes on to describe the characteristics of polyester, vinyl ester...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... before pyrolysis. Resin transfer molding, vacuum impregnation, fiber placement, and filament winding have all been used to impregnate and form preceramic preforms. The composite part is initially autoclave cured at 300 to 500 °F (150 to 260 °C) and 50 to 100 psi. The part is then put through the first...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.9781627084284
EISBN: 978-1-62708-428-4
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030200
EISBN: 978-1-62708-282-2
... Abstract This chapter provides a detailed account of corrosion inhibitors for oil and gas production. It begins by discussing some of the demands of competitive industry on inhibitor formulations. It then describes the varying characteristics of oil wells, gas wells, water injection systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... brines such as calcium chloride (CaCl 2 ), calcium bromide (CaBr 2 ), and zinc bromide (ZnBr 2 ); various aqueous solutions including seawater or reinjected water separated from oil and gas production; alternating water, steam and/or CO 2 injected for secondary oil recovery; and strong inorganic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000059
EISBN: 978-1-62708-312-6
... , as a result of carbon-assisted vacuum sintering ( section 5.2.5 in this chapter), had very low oxygen contents, comparable to wrought stainless steels. Also, corrosion-resistance/density curves for 317L, a somewhat more corrosion-resistant material because of higher chromium and molybdenum contents, appear...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290035
EISBN: 978-1-62708-319-5
..., or natural polymers, such as palm oil, carnauba wax, or beeswax. Formulations are customized to the shaping process and may employ the addition of water, solvents, and surfactants. For example, in the case of powder injection molding, the binders are thermoplastic polymeric materials (relying on a mixture...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... 2 ). For example, process temperatures can be decreased, hydrocarbon streams dried up, or additives such as inhibitors or neutralizers injected in order to reduce potential corrosion problems with carbon steel ( Ref 3 ). In refineries, fractionation towers, separator drums, heat-exchanger shells...