| 摘要 |
Procedure for manufacturing a high-pressure gas tank, especially for helium, with at least one aperture (4) through which it is filled and emptied, comprises: (1) making an inner skin (2) of a plastic material by extrusion and blowing; (2) fitting metal insert(s) (7.1, 7.2); (3) covering it with a reinforcing winding (3) of fibres; and (4) polymerisation and fitting with the necessary ducts and control valves. Procedure for manufacturing a high-pressure gas tank, especially for helium, with at least one aperture (4) through which it is filled and emptied, comprises: (1) making an inner skin (2) of a plastic material by extrusion and blowing; (2) fitting at least one metal insert (7.1, 7.2) over zones of reduced thickness; (3) covering it with a reinforcing winding (3) of fibres, preferably carbon fibres and resin; and (4) polymerisation and fitting with the necessary ducts and control valves. The extrusion and blowing stages are carried out using a mould with a joining plane corresponding to the equatorial line of the tank. This producing zones of extra thickness (6.1, 6.2) connecting its two poles, where the inserts are located. The inner skin is subjected to an internal pressure while the reinforcing layer is applied, using a resin with a high reciprocal value of modulus of elasticity, preferably over 8 per cent. Polymerisation is carried out slowly,at a temperature range of 80 - 120 degrees C over several hours, followed by slow cooling. |
