| 摘要 |
A method comprises forming a preform (51) of plastic matter, expanding said preform (51) to obtain a container (4), said forming comprising compression- forming said preform (51) in that mould means (2) in which said expanding occurs; a method comprises expanding a preform (51) in mould means (2) to obtain a container (4), before said expanding it being provided to form a do se of plastic material (55) in a paste state in said mould means (2) to obtain said preform (51); an apparatus comprises forming mould means (2), punch mea ns (40) for expanding a preform (51) in said mould means (2), abutting means (3 0) cooperating with said punch means (40), said punch means (40) and said abutting means (30) identifying a configuration in which said punch means (4 0) and said abutting means (30) cooperate to define a forming unit for compression~forming a semifinished product of plastic material (50; 53; 55) to obtain said preform (51) and a further configuration in which said punch mea ns (40) and said abutting means (30) cooperate to define an expansion unit of said preform to obtain a container.
|
