| 摘要 |
2086622 9219441 PCTABS00017 A method of moulding polymeric foam wherein the foam is moulded into a bun in a longitudinally-extending, channel-shaped mould (10) by a mobile vessel (12) and fall plate (11) which are progressively transported from one end to the other of the mould to lay down partially-expanded foam over the bottom of the mould. The improvement includes the step of moving the mould from a moulding position (16) to a curing position (18) remote from the moulding position after the mould has been charged with foam wherein the foam bun cures. An apparatus is provided for moulding a polymeric foam into a bun in a longitudinally-extending, channel shaped mould by a mobile vessel and fall plate which are progressively transported from one end to the other of the mould to lay down partially-expanded foam over the bottom of the mould. The apparatus includes a mould for receiving a polymeric foam and including a longitudinally-extending, channel-shaped enclosed mould through which a mobile vessel and fall plate are progressively transported from one end to the other of the mould to lay down partially-expanded foam over the bottom of the mould while the mould is in a moulding position. Gas is vented from the interior of the mould and the mould is moved from the moulding position to a curing position remote from the moulding position where the bun cures in the mould.
|
