Infusion
Fiberglass façade: GRP shapes modernize hotel in Spain
The exterior of the Vista Riviera hotel in Benidorm, Spain, has been transformed with a modern twist, thanks to the fiberglass expertise of Miraplas SL (Monforte del Cid, Spain).
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3-D preforms: Fast, efficient blade-root manufacture
To expedite the blade root manufacturing process for wind turbine blade manufacturers, 3TEX Inc. (Cary, N.C.) has developed RapidRoot, a 3-D preform.
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Heavy-duty infusion: Scaling up for scrubbers
Infused 3-D woven fabric preforms best steel in beams and unitized deck structures built for the caustic confines of massive flue gas desulfurization systems.
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Single bagging can do the job
Mechnical engineer Peter Schwarzel (CarbonWorks, Coombabah, Queensland, Australia) comments on the “Engineering Insights” article in the CT December 2010 issue, titled “Double-bag infusion: 70 percent fiber volume?”
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Double-bag infusion: Thickness gradient and pressure
Cliff Walker (Vacmobiles, Auckland, New Zealand), explains how the large pressure changes during infusion result in laminate compression and thickness variations across the part.
Read MoreAbsolute vacuum gauge
The following is an excerpt from Issue 12 of The Composites Letter, published by www.vacmobiles.com (reposted here by permission) that outlines the importance of using an absolute vacuum gauge to measure pressure levels during double-bad infusion:“Often called a precision vacuum gauge, an absolute gauge actually works the opposite way to a conventional dial type vacuum gauge.
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Double-bag infusion: 70% fiber volume?
A double vacuum-bag system and tight process control enable repeatable fiber volumes of 60 to 70 percent and improves consistency of infused laminates.
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Besting Big Ben: A Marvel in Makkah
Composite design makes possible the world’s largest clock and tallest clock tower.
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