| 摘要 |
Manufacture of moulded objects of plastic. Moulded objects of plastic are moulded by the placing of a sheet, or a layer of plasticified material by suction against the outline-forming outside of a mould which is permeable to let a gaseous working medium influence the material through the material of the mould. Prior to this influence a mould is manufactured which at least for the outline-forming part of the mould consists of a particular composite material, whose particles are bound together for the creation of a form-stable exterior structure having air passages extending to the outside of the mould. The suction is then carried out on the mould thus created.
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