METHOD OF SEPARATING FIBER TOWS
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United States of America Patent
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Mar 21, 2016
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Mar 21, 2016
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Methods and systems for separating fiber tows (e.g., carbon tows) are disclosed. The system may include a chamber defining first and second openings and a hollow interior therebetween. The first opening may be configured to receive a fiber tow and the second opening may be wider than the first opening. A vacuum source communicating with the chamber may be configured to reduce an air pressure in the hollow interior and expand the fiber tow. The method may include pulling a fiber tow having an initial width into a first chamber opening, through a hollow chamber interior, and out of a second chamber opening. Air pressure within the hollow chamber interior may be reduced to separate the fiber tow residing in the hollow chamber interior into an expanded fiber tow having a width greater than the initial width. The disclosed methods may separate the tow more gently than mechanical methods.
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