Method for moulding thermoplastics objects

B - Operations – Transporting – 29 – C

Patent

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18/538

B29C 17/07 (1980.01)

Patent

CA 1089612

METHOD FOR MOULDING THERMOPLASTICS OBJECTS ABSTRACT OF THE DISCLOSURE.- This invention relates to a method for the single-piece moulding of thermoplastics objects with an internally hollow structure connected to the out- side through at least one relatively small aperture. The method according to the invention comprises the following steps : preparing a cylindrical preform open at one flanged end and closed by a base wall at the opposite end, locating the preform in a mould having an internal shape corresponding precisely to the shape of the object to be obtained; connecting a pipe head to the flanged end of the preform; feeding a hot aeriform fluid through the pipe to accomplish blow moulding.

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