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vacuum-assisted resin transfer molding

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... for producing symmetrical parts requiring very high strength in one direction, such as pressure tubes, or for wrapping pressure vessels. The process is also useful for producing continuous oriented-fiber preforms for use in compression molding or resin transfer molding, probably in combination with other...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006916
EISBN: 978-1-62708-395-9
... applications, two-part systems are used. For example, in resin transfer molding (RTM), reaction injection molding (RIM), and vacuum assisted resin transfer molding (VARTM), a meter mixer is used to precisely mix parts A and B prior to injecting it into the mold cavity. If the mix ratio is not carefully...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
.... This is difficult to achieve with processes that flow the polymers and reinforcement to fill the tool. The reinforcing fibers must be placed using a process such as filament winding, resin transfer molding, or hand lay-up and vacuum bagging. Reinforcement Limitations The ability of the various processes...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006927
EISBN: 978-1-62708-395-9
..., especially interior corners. Resin Casting Casting is one of the most basic low-pressure molding processes and utilizes hollow tools or molds, sometimes with a vacuum assist to ensure complete filling of the mold. The low molding pressures allow for the use of low-cost tools, but this can also result...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006924
EISBN: 978-1-62708-395-9
... Abstract This article discusses the most common thermal analysis methods for thermosetting resins. These include differential scanning calorimetry, thermomechanical analysis, thermogravimetric analysis, and dynamic mechanical analysis. The article also discusses the characterization of uncured...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
... ). The term engineering resin or engineering plastic usually refers only to thermoplastics, which can be molded and remolded to shape, and excludes thermosets such as epoxy resins that cure into an infusible solid. Some rubbers (e.g., polyurethanes) that are cured or vulcanized are nevertheless classed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... specific to the metal group and progress from melting to solidification, casting processing, and finally how the removal of the mold material can affect performance. aluminum casting defects castings copper ductile iron failure analysis gray iron melting solidification steel Introduction...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006943
EISBN: 978-1-62708-395-9
... filaments. Both types of the hexaboride-type emitters require better vacuum than tungsten filament. The field-emission types used in SEM instruments are the Schottky emitter and cold-cathode emitter, both manufactured with a sharp tip. The Schottky emitter is made of a tungsten single crystal (100) coated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1
... iron, gray cast iron, malleable irons, ductile iron, low-alloy steel castings, austenitic steels, corrosion-resistant castings, and cast aluminum alloys are the materials discussed. The article describes the general types of discontinuities or imperfections for traditional casting with sand molds...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4