Membrane-assisted preforming of plastic semi-finished product
AssigneeCompagnie Plastic Omnium
InventorsDamien BOISSON, Emillien HUMMER
Life of this patent
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Abstract
Method for preforming a plastic semi-finished product, wherein: at least one anti-adhesive membrane is positioned facing a wall of a preforming mould; the plastic semi-finished product is positioned facing the anti-adhesive membrane so that the anti-adhesive membrane is positioned between the semi-finished product and the wall; pressure is applied to press the semi-finished product against the wall of the preforming mould, in order to give a shape to the semi-finished product; pressure is removed and the preformed part is ejected from the wall; and the preformed part is removed from the mould.
Claims12
Method for preforming a plastic semi-finished product, wherein:
- at least one anti-adhesive membrane is positioned facing a wall of a preforming mould;
- the plastic semi-finished product is positioned facing the anti-adhesive membrane so that the anti-adhesive membrane is positioned between the semi-finished product and the wall;
- pressure is applied to press the semi-finished product against the wall of the preforming mould, in order to give a shape to the semi-finished product;
- pressure is removed and a preformed part is ejected from the wall;
- and
- the preformed part is removed from the mould.
Dependencies are inferred from the claim text.