Apparatus for making tubes out of composite material having high

Details Apparatus for making tubes out of composite material having high Apparatus for making tubes out of composite material having high

1997-04-15

1999-08-10

Aftergut, Jeff H.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156446, 156494, 156499, B65H 8100

Patent

active

059353783

ABSTRACT:
A method of manufacturing a composite material in the form of an annular tube by winding on a mandrel both a reinforcing fiber fabric and a sheet of matrix material, comprising the following steps: 1) preheating the mandrel to a predetermined temperature; 2) fixing the reinforcing fiber fabric and the sheet of matrix material to the mandrel; 3) causing the mandrel to rotate at a nominal speed to wind the fabric and the sheet simultaneously, the fabric and the sheet being subjected to a nominal tension; 4) actuating heating means for heating the material and cooling means for cooling the mandrel; 5) when the tube reaches the desired diameter, stopping both the heating means and the rotation of the mandrel; 6) after a determined duration that is sufficient for bringing the temperature of the mandrel to the predetermined preheating temperature, stopping the cooling means; and 7) dismounting the mandrel. The present invention also relates to the composite material obtained by the method and to a machine for manufacturing the material in application of the method.

REFERENCES:
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patent: 4380523 (1983-04-01), Lind et al.
patent: 4464216 (1984-08-01), Gardiner
patent: 5160568 (1992-11-01), Gruber
"Processing of Advanced Thermoplastic Composites", J.D. Muzzy, ASME Symposium of Manufacturing Science of Composites, Apr. 1998, pp. 27-39.

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