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bulk molding compounds

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... consisting of chopped strands of glass fiber in combination with a resin, in either sheet form (sheet molding compound) or bulk form (bulk molding compound). A “charge” of these compounds is placed in a matched metal mold and cured under heat and pressure. During cure the material flows to fill the mold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.9781627082815
EISBN: 978-1-62708-281-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780433
EISBN: 978-1-62708-281-5
... length critical crack length initial crack size acrylonitrile-butadiene-styrene acetals Auger electron spectroscopy aramid ber American National Standards Institute ammonium polyphosphate American Society for Testing and Materials alumina trihydrate thickness butadiene bulk molding compound Building...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780064
EISBN: 978-1-62708-281-5
... y y y n n y n y y     Bulk molding compound 30 4.5 30 3370 1.0 11 y y y y n n y n y y     ZMC 30 4.5 30 3370 1.0 11 y y y y n n y n y y Stamping 3 0.45 30 3370 6.0 65 y n n y n n n n y n Reaction injection molding 1 0.15 10 1120...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060155
EISBN: 978-1-62708-355-3
... their ideal levels simultaneously. For instance, tensile strength may reach a maximum following some particular curing cycle, whereas elongation at that point is well along a steeply decreasing curve. Thus, the optimum curing cycle for molding of a given compound must be determined through various means...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... matrix, usually consisting of E-glass fiber in either a polyester or vinyl ester resin. The material is available either as rolls or as precut sheets. Bulk molding compounds (BMCs) are also short, randomly oriented preimpregnated materials; however, the fibers are normally only 1 8 to 1 1...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... competitors Material Processes Generalized plastics competitive position Primary Secondary Sheet steel Stamped Welded fabrication Sheet molding compound (SMC) or thermoplastic. SMCs offer 30% weight savings at similar room-temperature performance. Cost comparison depends on steel complexity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030001
EISBN: 978-1-62708-349-2
... of prepreg materials, automated tape lay-up of prepreg materials, resin transfer molding, vacuum-assisted resin transfer molding, resin film infusion, wet lay-up, filament winding, pultrusion, and compression molding of sheet molding or bulk molding compound. While these processes are general in description...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.9781627083492
EISBN: 978-1-62708-349-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... or compression molding and fiberglass/polyester made by compression molding. Recreational vehicles have long used glass fibers, mostly for its durability and weight savings over metal. The product form is typically fiberglass sheet molding compound made by compression molding. For high-performance Formula 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
.... Roving —A number of strands or tows collected into a parallel bundle without twisting. Rovings can be chopped into short fiber segments for sheet molding compound, bulk molding compound or injection molding. Yarn —A number of strands or tows collected into a parallel bundle with twisting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780003
EISBN: 978-1-62708-281-5
... (propionate) CPVC Chlorinated polyvinyl chloride CPE Chlorinated polyethylene CS Casein CTA Cellulose triacetate (triacetate) CTFE Polymonochlorotrifluoroethylene DAP Poly(diallyl phthalate) DMC Dough molding compound (usually polyester) EC Ethyl cellulose...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420015
EISBN: 978-1-62708-310-2
..., the only solute atoms small enough to fit into the interstices of metal crystals are hydrogen, nitrogen, carbon, and boron. The other small-diameter atoms, such as oxygen, tend to form compounds with metals rather than dissolve in them. When both small and large solute atoms are present, the solid solution...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290251
EISBN: 978-1-62708-319-5
... Composites , J. Appl. Polym. Sci. , Vol 121 , 2011 , p 2500 – 2511 10.1002/app.33961 • Bayer M. , Pyka P. , and Wagner H. , Process and Molding Compound for Producing Inorganic Sintered Products by Injection Molding , U.S. Patent 5,417,756 , May 23 , 1995 • Bose...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780115
EISBN: 978-1-62708-281-5
.... Plastics with seeds contain a higher crystalline fraction with small domains. Crystallinity is also affected by the temperature gradient in processing. A high mold temperature reduces temperature gradients and the amount of crystallization, whereas a low mold temperature increases the crystallization rate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.9781627082839
EISBN: 978-1-62708-283-9
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290085
EISBN: 978-1-62708-319-5
...) to large, continuous twin-screw compounding stations (1000 kg, or 2200 lb, per day). Feedstock quality testing starts with density and viscosity checks. For dry mixing of powders with binders, thermal effusivity can be used as a measure of proper mixing. Homogeneity is an important attribute that helps...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200437
EISBN: 978-1-62708-354-6
... The process of melting out the expendable wax pattern from an investment mold by the application of heat, usually at temperatures less than 250 °F (121 °C). Dextrin . . . Soluble gummy carbohydrate formed by the decomposition of starch by heat, acids, or enzymes; it is used in core compounds, mold compounds...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000223
EISBN: 978-1-62708-312-6
... by forging other compound without melting. of an unsintered, presintered, or sintered preform. reduction of oxide. The process of converting a metal oxide to metal by applying sufficient powder injection molding (PIM). See metal heat in the presence of a solid or gaseous injection molding. material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460209
EISBN: 978-1-62708-285-3
... up to bulk scale with advanced mechanical properties (e.g., high density, high strength, high hardness) and without oxidation, phase transformation, or decomposition of feedstock materials, there have been a number of studies on the application of the cold spray process to various industrial fields...