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spray molding

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003406
EISBN: 978-1-62708-195-5
... process and spray-up process. Workmanship for hand lay-up and spray-up processes is reviewed. The article provides information on the matrix-resin materials used for open molding, including unsaturated polyester resins, epoxy vinyl ester resins, and reinforcements. It explains the component design...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003036
EISBN: 978-1-62708-200-6
...Abstract Abstract Wet lay-up using hand or spray techniques is one of the simplest methods of combining a fiber reinforcement with a solidifying resin to form a composite structure. This article describes several wet lay-up processes - including contact molding, spray molding, vacuum bag...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005971
EISBN: 978-1-62708-168-9
... Abstract Abstract Powder metallurgy (PM) processes include press and sinter hardening, metal injection molding, powder forging, hot isostatic pressing, powder rolling, and spray forming. This article provides an overview of PM processing methods and general considerations of heat treatment of PM parts...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005745
EISBN: 978-1-62708-171-9
... and mold coatings. Glass-Contact Coatings Mold Coatings Polymer powders are specified by their chemistry, morphology, molecular weight distribution or melt-flow index, and particle size distribution. Spray parameters must be selected to accommodate each particular polymer formulation. A narrow...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... and 370 °C (400 and 700 °F). A light mist of water (or mild water/surfactant solution) is sprayed on the mold surface. This slightly oxidizes the mold surface and provides a better anchor for subsequent layers to adhere. Coating preparation for spraying can easily be done in the foundry...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005296
EISBN: 978-1-62708-187-0
... to solidify the liquid core of the casting by water spraying beyond the mold Cutting to length and removing the cast sections The main components of continuous casting machines are presented in Fig. 1 . Molten steel in a ladle is delivered to a reservoir above the continuous casting machine, called...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005742
EISBN: 978-1-62708-171-9
... industrial standard has been electroplated Ni and Cr, which offers wear resistance without sacrificing thermal conductivity of the mold. Thermal spray alternative solution—wear resistance, thermal conductivity, thermal fatigue HVOF and, in some cases, plasma/combustion processes WC-Co wear coatings using...
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
... to the threat of environmental legislation. The main impetus for the development has always been the elimination of styrene emission. The technology was developed as an alternative to open-mold manufacturing processes like hand lay-up and spray-up. Vacuum infusion was considered as a low-cost alternative...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003428
EISBN: 978-1-62708-195-5
... spray seal process. The spray is applied approximately halfway up a spar web and 50 to 100 mm (2–4 in.) out onto the inner mold line of the skin. Fig. 7 Sealant overcoat of fasteners. Source: Ref 3 Butt Joint Sealing and FIP Seals Butt joint sealing and FIP seals are the last sealing...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005257
EISBN: 978-1-62708-187-0
... solid bars, or horizontal two-speed pouring). Figure 3 in the article “Vertical Centrifugal Casting” in this Volume provides a convenient chart to check the centrifugal force against casting diameters and spinning speeds. Fig. 3 Patented automatic mold wash spray assembly. Courtesy...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004024
EISBN: 978-1-62708-185-6
... and performance. The process is relatively cheap and fast. Indirect rapid tooling technologies use a two-step process to create tooling. First, they create a master geometry from the computer model. This master is used as a mold to cast, spray, or free form the actual tooling. In the second step, they can use...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005308
EISBN: 978-1-62708-187-0
... than other plated coatings and therefore may require more finishing and polishing. Metal spraying can also be used to coat a negative mold (usually epoxy coated with a release agent), which is then backed up with cast epoxy. The metallized epoxy pattern is then removed from the negative mold. Pattern...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003420
EISBN: 978-1-62708-195-5
... of graphite/epoxy, in which components are molded in an open-faced tool. The mold in this case is a self-heating, slip cast ceramic tool that contains the profile of the finished part. A plasma-sprayed aluminum preform is laid into the mold, heated to near molten aluminum temperature, and pressure...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006488
EISBN: 978-1-62708-207-5
... process is analogous to the autoclave molding of graphite/epoxy, in which components are molded in an open-faced tool. The mold in this case is a self-heating, slip cast ceramic tool that contains the profile of the finished part. A plasma-sprayed aluminum preform is laid into the mold, heated to near...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005259
EISBN: 978-1-62708-187-0
... is recommended before use: Preheat mold to 205 to 260 °C (400 to 500 °F). Spray with a coating of mold wash approximately 0.8 mm ( 1 32 in.) thick. Brush out mold wash and repeat spray procedure. The mold should then be brushed out and resprayed a third time. The mold is ready for use...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003022
EISBN: 978-1-62708-200-6
.... It also discusses the selection of plastics for plating. This article also describes metallizing techniques, including plating (electrolytic or electroplating), vacuum metallizing and thermal spraying, and environmental considerations. The article discusses the quality assurance procedures for metallized...
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
... and extrusion are widely employed. Composites based on thermosetting plastics are processed using specially developed methods, including: Contact molding, which employs single-surface molds, as in hand lay-up, spray-up, and filament winding Compression-type molding, as in sheet molding, bulk molding...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002465
EISBN: 978-1-62708-194-8
... to mold surfaces Low Low Miscellaneous Foam molding Liquid resin plus blowing agent Short fibers Yes Yes Yes Parallel to mold surfaces Low/medium Low Lost-core molding Liquid resin, molten wax, ceramic spray Powder, whiskers Yes Yes No Parallel to mold surfaces Low Medium/very...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005307
EISBN: 978-1-62708-187-0
... alloys. It also reviews other casting processes for zinc alloys, such as sand casting, permanent mold casting, plaster mold casting, squeeze casting, and semisolid casting. alloy composition casting die casting furnaces hot chamber die casting inclusions permanent mold casting plaster mold...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003020
EISBN: 978-1-62708-200-6
.... In this case, a piece of oriented glass fabric is placed on top of the sprayed-up preform prior to mold closing and resin additions. Filament winding, or other robotic fiber placement, is one of the possible techniques for accurately positioning reinforcement where it is needed in a preform. An approach...