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resin-injection molding

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003413
EISBN: 978-1-62708-195-5
...Abstract Abstract Resin transfer molding and structural reaction injection molding belong to a family, sometimes denoted as liquid composite molding. This article provides information on the characteristics and automotive and aerospace applications of liquid composite molding. It reviews...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003020
EISBN: 978-1-62708-200-6
...Abstract Abstract Resin transfer molding (RTM) and structural reaction injection molding (SRIM) are two similar processes that are well suited to the manufacture of large, complex, and high-performance structures. This article discusses the similarities and differences of RTM and SRIM processes...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002492
EISBN: 978-1-62708-194-8
... including contact molding, compression-type molding, resin-injection molding, and pultrusion are described. The article also discusses the various factors to be considered in designing for composite manufacturing. ceramic matrix composites composite manufacture compression-type molding contact...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003370
EISBN: 978-1-62708-195-5
... thermoset bulk molding compounds injection molding compounds continuous-belt machines beltless machines resin paste mixing techniques MOLDING COMPOUNDS are plastic materials in varying stages of pellets or granulation that consist of resin, filler, pigments, reinforcement, plasticizers, and other...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003414
EISBN: 978-1-62708-195-5
...Abstract Abstract Vacuum infusion is a resin injection technique derived from resin transfer molding. This article discusses the characteristics of the technique and its applications. It presents the theory and background of the technique and provides an illustration of how parts are made...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003014
EISBN: 978-1-62708-200-6
... (50 to 500 psi) counterpressure. Thus, the process should be considered as a tooling modification rather than one that requires specialized molding equipment. The steps in the process are as follows: clamping the mold, pressurizing the cavity, injecting the resin, depressurizing, and ejecting...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003409
EISBN: 978-1-62708-195-5
... for low-surface-area parts with extreme lay-up complexity. Very successful examples where resin injection molding of dry preformed fabrics have been developed for propeller-blade molding by Dowty aerospace propellers in England; for sine wave spars and engine-intake ducts for fighter aircraft by Dow–UT...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... (grade A ingot) 1.36 2.38 Magnesium (ingot) 0.29 0.51 Brass (ingot) 1.25 2.18 Mild steel (sheet) 0.27 0.47 Amino resin thermoset 0.85 1.49 Nylon 6/6 0.25 0.44 Aluminum (ingot) 0.78 1.37 Aluminum (ingot) 0.21 0.37 Phenolic thermoset 0.75 1.31 PMMA 0.19 0.33 Silicon...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003367
EISBN: 978-1-62708-195-5
..., adhesive systems, and syntactic core materials. They can be consolidated using autoclave, vacuum bag, press, pultrusion, RTM, Seemans composite resin injection molding process, or vacuum-assisted resin transfer molding methods. Curing of CE resins and prepregs is generally performed at elevated...
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.a0006864
EISBN: 978-1-62708-395-9
... modes tend to be by delamination at high temperature if the resin softens. Filament winding or thermoplastic pultrusion can be used as a precursor to stamping or compression molding as a way of producing preforms with the glass accurately oriented. Filament winding is perhaps the best automatic process...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002491
EISBN: 978-1-62708-194-8
... reaction 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 below in the section “Casting” in this article. Reaction Injection Molding...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003008
EISBN: 978-1-62708-200-6
..., translucent, and opaque colors. Cast sheets of acrylic may be obtained by several casting methods. However, this discussion focuses on products produced by molding or extrusion. Resin Grades Pellets for molding and extrusion are made either in bulk (continuous solution polymerization), followed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
... waviness and improves appearance. A technique for obtaining better surface finish that is currently being used in many automotive applications is called in-mold coating. To apply an in-mold coating, a thermoset resin is injected into the mold after the SMC component is partially cured. To provide...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003402
EISBN: 978-1-62708-195-5
... of flow expected in these processing methods. Fig. 1 Schematic of types of flows expected in composites processing. (a) Short-fiber suspension manufacturing methods: flow of resin-fiber suspension in a mold or through a die. Examples are injection molding, compression molding, and extrusion. (b...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002477
EISBN: 978-1-62708-194-8
... Estimation The ability to manufacture plastic parts using the injection-molding process is governed by the material behavior, part geometry, and processing conditions. Estimating the flow length of the resin into a mold of a given thickness is an important manufacturing consideration for the design...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
...-performance resins, which would include fluoropolymers, ionomers, polybenzimidazole, and ultrahigh molecular weight polyethylenes. Most fluoropolymers are not melt processed, even though most other thermoplastics, including engineering grades, are typically melt processed by injection molding, extrusion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
.... It is especially important to inspect the vents on a regular basis to be certain that they remain clear of resin products that could clog the vents. Complex core geometries may be formed by gluing two or more cores together before they are placed in the mold. Alternatively, one core may be injected around...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
... are prone to environmental stress cracking. Molded-in stresses are commonly imparted through the forming process, especially injection molding and thermoforming. Molded-in stress is observed in amorphous resins as a marked expansion in the sample dimension at temperatures approaching the T g...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005255
EISBN: 978-1-62708-187-0
... in using resins in pattern waxes. Fillers The solidification shrinkage of waxes can also be reduced by mixing in powdered solid materials called fillers. These are insoluble in, and higher melting than, the base wax, and they produce an injectable suspension when the mixture is molten. Because...