Hydraulically-assisted compression molding material and process development

Book · Fri Nov 01 04:00:00 EST 1996

OSTI ID:392383

Collister, J E; Butler, K I; Rinz, J E ^[1]

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1. Premix, Inc., North Kingsville, OH (United States)

The Sheet Molding Compound (SMC) industry has recently seen an introduction of novel materials which are claimed to allow molders of SMC parts to alter their process to mold at substantially lower molding pressures. Although this is viewed as a major advantage for SMC molders, little description of molding processes has been given which take full advantage of these novel materials. The work reported in this paper describes one possible alternative process which will enable molders to capture the low-cost potential of reducing the required molding pressures. This process involves the use of low-cost mold construction, and the use of a novel method of applying molding pressure that obviates the need for a high-cost compression press, which causes the authors to apply a new name to this process; Hydraulic-Assisted Compression Molding. Molding results are presented for SMC which was designed to be molded at reduced pressures and temperatures (6.9 bar and 100 C).

• OSTI ID: 392383
• Report Number(s): CONF-9602107--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
CASTING MOLDS
COMPOSITE MATERIALS
EFFICIENCY
EXPERIMENTAL DATA
MECHANICAL PROPERTIES
MOLDING
MOLDING MATERIALS
PERFORMANCE
PRESSURE DEPENDENCE
TEMPERATURE DEPENDENCE