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autoclaving

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870101
EISBN: 978-1-62708-314-0
... Potential thermal contraction issues Fig. 4.7 Eggcrate structures for bond tools. Photo Source: The Boeing Company Fig. 4.8 Tools used for autoclave heat-up tests. NC, numerical control. Source: Ref 5 Fig. 4.9 First autoclave heat-up rate test. NC, numerical control. Source...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... Possible reactions for an epoxy cured with a primary amine. Source: Ref 2 Fig. 7.7 Typical viscosity curve for an epoxy resin Fig. 7.8 Effect of catalyst content on viscosity. Source: Ref 1 Fig. 7.9 Gas flow velocity turbulence near autoclave door Fig. 7.10...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... process Lower labor intensity and skill levels Considerable design flexibility: reinforcements, lay-up sequence, core materials, and mixed materials Mechanical properties comparable to autoclave part (void content <1%) Part size range and complexity make RTM appealling Smooth finish...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... for secondarily bonded or cocured sandwich panels with both flat and complex curved geometries. Polymethacrylimide foam (Rohacell) 2–18.7 250–400 Expensive high-performance closed-cell foam that can be thermoformed. High-temperature grades (WF) can be autoclaved at 350 °F/100 psi. Used for secondarily...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... J.M. , Campbell F.C. , and Mallow A.R. , “ Effect of Tool Design on Autoclave Heat-Up Rates ,” Composites in Manufacturing 7 Conference and Exposition , Society of Manufacturing Engineers, 1987 • Grimshaw M.N. , Automated Tape Laying , Composites , Vol 21 , ASM Handbook...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
..., is given in Fig. 6.18 . Note that adhesive bonding yields lower joint strengths than fusion bonding techniques and is very dependent on the surface preparation method used. Autoclave coconsolidated (melt fusion) joint strengths approach virgin autoclave molded strengths. Typically, resistance...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
... by an autoclave, an oven, heat blankets, or heat lamps, depending on where and how the repair is performed. Autoclaves and ovens provide the best temperature control. As previously discussed, if a heat blanket is used, it is advisable to conduct a trial run to make sure that there is sufficient power...
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
... or ovens are frequently used. When heat lamps are used, caution is necessary to ensure that the part does not get locally overheated. If the contour is complex, it may be necessary to bag the part and employ the isostatic pressure of an autoclave. Instead of using the positive pressure of a vented bag...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... providing better support to the fibers and thus higher compression strengths. To date, most high-performance carbon/epoxy structures have been fabricated using prepreg that is autoclave cured at either 250° or 350 °F (120° or 175 °C). In the early 1990s, work began on the development of lower...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
... Technique for Autoclave Curing of Filament Wound Thin-Walled Tubes , Mater. Manuf. Process. , Vol 10 ( No. 1 ), 1995 , p 1 – 10 10.1080/10426919508934993 8.24 Swanson W.R. , Toombes G.R. , and Beckwith S.W. , In-Plane Shear Properties of Composites Using Torsion Tests of Thin...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280079
EISBN: 978-1-62708-267-9
... spurious grains. The ceramic shell must be prepared for the casting operation. After dipping, any support fixtures used for dipping are removed. The shell is then dewaxed by using a high-pressure steam autoclave, which rapidly flashes out the wax. The shell is then fired at high temperature to sinter...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... and impregnated with furfural alcohol. It is then autoclave cured at 300 °F (150 °C) for two hours and postcured at 400 °F (205 °C) for 32 hours. Another pyrolysis cycle is then conducted at 1500 °F (815 °C) for 70 hours. After three infiltration/pyrolysis cycles, the material is designated RCC-3, with a flexural...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... and autoclave processing, the manufacturing costs are relatively high. Prepreg lay-up is a process in which individual layers of prepreg are laid up on a tool, in the required directions and to the correct thickness. A vacuum bag is then placed over the lay-up, and the air is evacuated to draw out air between...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140055
EISBN: 978-1-62708-335-5
... place in an autoclave in which parts are exposed under pressure at elevated temperatures in a controlled atmosphere. Various production castings and powder metallurgical products are routinely HIPped in large commercial facilities. Densification (HIP) to various extents generally enhances tensile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030200
EISBN: 978-1-62708-282-2
... be predictive of field performance, but there still remains only a rough correlation between laboratory and field performance of corrosion inhibitors. Therefore, field corrosion monitoring remains an important consideration. Static Test Wheel Test Kettle Tests Flow Loop Tests Autoclave Tests...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... be simple geometric shapes or complex near-net shapes. The containers are placed in an autoclave that is subsequently heated and pressurized. Generally, components with maximum diameters to about 4 ft (1.3 m) are able to be inserted into an autoclave. Superalloys are normally HIPed to full density...
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
... prepregs are processed in a manner similar to that of thermoset composite parts but at much higher pressures and temperatures. The prepregs can be layed up, bagged, and autoclave processed. The processing cycles are necessarily long, and high temperatures such as 650 to 700 °F or (345 to 370 °C...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820125
EISBN: 978-1-62708-339-3
... N10665). Sample was a welded coupon placed in a chemical plant process stream for approximately 1 year. Hydrochloric and chromic acid etch. 75× Fig. 4 Metallographic cross sections of the corroded surface of weld deposits on alloy B-2 (UNS N10665) after testing in an autoclave at 150 °C (300 °F...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870179
EISBN: 978-1-62708-299-0
...-reinforced aluminum MMCs can be produced by hot molding, a low-pressure, hot-pressing process designed to fabricate parts at significantly lower cost than is possible with a diffusion-bonding/solid-state process. The hot-molding process is analogous to the autoclave molding of graphiteepoxy, in which...