CARBON BUNDLE SPREADING APPARATUS Russian patent published in 2011 - IPC D02J1/18 D01F9/12 

FIELD: chemistry.

SUBSTANCE: apparatus for spreading a carbon bundle has series-arranged coiling unit 1, a pair of feed rolls 2, a unit for controlling 3 and regulating tension in the processed bundle, a unit for spreading 4 the carbon bundle with an air stream, a pair of receiving rolls 5, as well as a unit for winding 6 the spread bundle. The unit for spreading 4 the carbon bundle with an air stream is in form of two supporting rolls 11, 12 and a nozzle 13 which is installed between and under the supporting rolls with inclination angle of 30°-70° to the displacement surface of the bundle, and is made with a flat slotted opening 14 with possibility of feeding compressed air through said opening. The slotted opening 14 of the nozzle 13 of the unit for spreading 4 the carbon bundle can be made with partitions 15. The nozzle can be fitted with possibility of regulating its inclination angle depending on the thickness of the bundle.

EFFECT: high speed of the stream of compressed air results in efficient splitting of the carbon bundle into monofilaments and obtaining a belt of carbon fibres with lower surface density.

3 cl, 6 dwg