| 摘要 |
<p>1,039,011. Blow-moulding. V. FLAX. Jan. 7, 1964 [Jan. 10, 1963], No. 687/64. Heading B5A. In a blow moulding process an extruded thermoplastic tube is secured in a vertically reciprocable mould comprising a tubular body with end closure members at least one of which has a small bore passage connected to a source of fluid pressure. The jet of fluid pierces the tube and then inflates it to the shape of the mould cavity.</p> |
