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Radio Frequency Co., Inc.

A new preheating system for plastic sheet molding compound (SMC) that uses radiofrequency heating technology is being introduced by Radio Frequency Co., Inc., of Millis, Massachusetts, USA. This system is reported to enhance the distribution of reinforcement fibers in the molding process, which enhances product quality and strength, reduces press cure time by 50%, and is especially effective for thicker bosses and structures, the company says. "The Macrowave SMC Preheater provides uniform heating throughout the entire thickness of the sheet molding compound instantly, without requiring any temperature differential to force heat by conduction from the surface to the center," the company says, adding: "Facilitating the movement and distribution of fibers throughout molded parts, improving their strength and surface finish, this RF preheater reduces press cure time which enables a 100% increase in productivity for an existing press." Capable of preheating SMC loads up to 50 inches wide x 84 inches long in under one minute, the device's PLC controls the heat cycle time, power level, and conveyor movement to synchronize with the press operation, Radio Frequency Co. reports. www.radiofrequency.com.

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Title Annotation:industry NEWS and NOTES
Publication:Plastics Engineering
Date:Jun 1, 2011
Words:183
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