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single-pass impregnation

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009080
EISBN: 978-1-62708-177-1
... Abstract This article describes the dispersed-phase toughening of thermoset matrices by the development of multiphase-structure thermosetting matrices using rubber and/or thermoplastic materials. It discusses two main methods for manufacturing prepregs, namely, single-pass impregnation and...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003416
EISBN: 978-1-62708-195-5
... and ceramic guides. Courtesy of Texkimp, Ltd. Guidelines for spreading the fiber: Moving the fiber over a rolling surface does not increase spreading nearly as much as passing it over static surfaces. However, in either case, the surface should be polished to a surface roughness of 16 root...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003425
EISBN: 978-1-62708-195-5
... plates as it passes under the rolls to ensure consistent pressure application and to avoid fiber distortion. In most cases, since the material will be subsequently thermoformed, only partial compaction is required, and rates of 1.5 to 3 m/min (5 to 10 ft/min) are achievable (rates are limited by how fast...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003789
EISBN: 978-1-62708-177-1
.... This allows the mount to pass smoothly over the subsequent polishing cloths and prevents the plowing aside of abrasives by a sharp edge. Failure to use a bevel slows polishing on long-nap cloths. Following grinding, the specimen is flat to the edges, and the pores are almost completely smeared ( Fig...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009085
EISBN: 978-1-62708-177-1
... readily pass through to ground. The high electrical current of the lightning arc can cause remelting and rapid quenching of the metal alloy, resulting in changes in microstructure and properties. Composite conductivity, however, is not as homogeneous as in metals. In carbon-fiber-reinforced composites...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002161
EISBN: 978-1-62708-188-7
... electrochemical grinding. The maximum depth of cut for a single ECG wheel pass is usually considered to be about 2.5 mm (0.100 in.). In surface grinding, the area of the electrode gap varies with wheel diameter and depth of cut ( Fig. 5 ). Therefore, maximum current and material removal is achieved at the maximum...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003421
EISBN: 978-1-62708-195-5
... binder is burned out prior to consolidation. Wetting agents may be added to ease the infiltration of the fiber tow or preform. The fiber tow or fiber preform is impregnated with the matrix slurry by passing it through a slurry tank. The impregnated fiber tow or preform sheets are similar to the prepregs...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002141
EISBN: 978-1-62708-188-7
... depends on the type of wheel and the accuracy required. In general, threads of 12 or 14 per 25 mm (1 in.) and finer can be ground in one pass of a single-edge wheel unless the unwrapped thread length is much greater than normal. The unwrapped length is approximately equal to the pitch circumference...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001747
EISBN: 978-1-62708-178-8
... ) 2 section and the detection section. Inert gas fusion often involves use of gas chromatography in separation of gases. The molecular density of gases as they are transferred through a chromatographic column causes gases with lower density to pass more rapidly through the columns than the higher...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003039
EISBN: 978-1-62708-200-6
...-specific and, in most cases, have been circumvented by innovative design and tow placement machines. Fabricators of large rocket motors have been using water-soluble sand mandrels or plaster mandrels that can be stripped, reduced in size, and passed out through relatively small ports. Reverse curvature can...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006104
EISBN: 978-1-62708-175-7
.... Table 1 Influence of liquid coolant and oil impregnation on flank wear Material Composition Flank wear, mm Oil impregnated Cutting fluid Dry 40 passes 90 passes 40 passes 90 passes 40 passes 90 passes Distaloy AE 0.5% C 0.046 0.098 0.1335 0.739 0.075 0.321 ASC100.29...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003415
EISBN: 978-1-62708-195-5
... site to complete the operations. Alternatively the part is passed on to a tier 1 supplier who further integrates the part into a module assembly that is supplied to the OEM, who is often able to eliminate many detailed, complex process steps. Such operations include: Application of soft-touch foam...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003360
EISBN: 978-1-62708-195-5
... can be applied to the fabric either by using prefilmed substrate paper, a “knife over roll,” or a similar coating mechanism. Solvent coating is typically accomplished by immersing the fabric into a bath containing 20 to 50% of a solvent and resin mixture and then drying the fabric in a one-pass or...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003464
EISBN: 978-1-62708-195-5
... microcracks. With dark field, the light path is blocked from the objective center and is directed to the specimen at an oblique angle. This eliminates the reflected image in favor of the image formed as light passes through the sample subsurface. Using bright field, microcracks in CFRP composites are easily...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006336
EISBN: 978-1-62708-179-5
... both with the proper equipment. Longitudinal flux lines are typically produced by a yoke or external coil, do not require direct electrical contact, and are easy to generate. Circular flux lines are typically created by passing current directly through the part or, if the part is hollow, passing...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003133
EISBN: 978-1-62708-199-3
... lubricant, and the wire is drawn through hardened steel or tungsten carbide dies. In some instances, multiple-draft tandem bull blocks (in sets of 3 or 5 passes) are used instead of single-draft machines. Tandem drawing machines having 10 to 12 dies for each machine are used for break-down of hot-rolled...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.9781627081955
EISBN: 978-1-62708-195-5
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001228
EISBN: 978-1-62708-170-2
... with an airwash separator, as shown in Fig. 5 . Spent abrasive and contaminants are fed by a belt and bucket elevator to the helicoid conveyor. The abrasive is screened in the rotary screen, falls in a vertical curtain, and passes under a swinging baffle. The abrasive is then subjected to a controlled...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003417
EISBN: 978-1-62708-195-5
... structural shapes to provide corrosion resistance, structural function, and personnel protection. In many buses, the luggage rack is pultruded. Hollow sections within the rack allow air to be passed for heating or cooling. Because of its continuous nature, the pultrusion process produces the rack in one...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003038
EISBN: 978-1-62708-200-6
... are the structural Z sections between the inner and outer walls of a refrigerated truck trailer. In many buses, the luggage rack is pultruded. Hollow sections within the rack allow air to be passed for heating or cooling. Because of its continuous nature, the process produces the rack in one piece...