Division 3.7.2.1 Composite filament winding

When composite containers are fabricated from a liner over-wrapped with continuous filament windings, the filament winding operations shall be computer or mechanically controlled. During winding the principal parameters shall be monitored and kept within specified tolerances, and documented in a winding record. The principal parameters are:

1. (a)

   Fibre type including tex value and sizing;

2. (b)

   Number of fibre tows per bandwidth;

3. (c)

   Type of resin and resin components mix ratio;

4. (d)

   Manner of impregnation, weight or volume fraction of resin or fibre;

5. (e)

   Winding program reference and winding angle;

6. (f)

   Number of winding rotations hoop;

7. (g)

   Number of windings cycles helical (type 3 and 4 containers only);

8. (h)

   Band width;

9. (i)

   Winding tension;

10. (j)

    Winding speed,

11. (k)

    Temperature of the resin.