IT1167096B -
METHOD AND APPARATUS TO PRINT AN OBJECT ELONGATED FROM A PLASTIC MATERIAL
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METHOD AND APPARATUS TO PRINT AN OBJECT ELONGATED FROM A PLASTIC MATERIAL
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Publication number
IT1167096B
IT1167096BIT48112/83AIT4811283AIT1167096BIT 1167096 BIT1167096 BIT 1167096BIT 48112/83 AIT48112/83 AIT 48112/83AIT 4811283 AIT4811283 AIT 4811283AIT 1167096 BIT1167096 BIT 1167096B
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Application filed by Wolfgang Ernst SchedelfiledCriticalWolfgang Ernst Schedel
Priority to IT48112/83ApriorityCriticalpatent/IT1167096B/en
Publication of IT8348112A0publicationCriticalpatent/IT8348112A0/en
Publication of IT8348112A1publicationCriticalpatent/IT8348112A1/en
Application grantedgrantedCritical
Publication of IT1167096BpublicationCriticalpatent/IT1167096B/en
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products
(AREA)
Moulds For Moulding Plastics Or The Like
(AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General
(AREA)
Abstract
Method comprises introducing the material into a mould, expanding it so that the material in one end is not fully expanded, introducing fresh material in contact with the partially expanded material, then fully expanding the fresh and partially expanded material in the contact zone. Esp. for prodn. of items from polystyrene moulding beads which only become fully welded when fully expanded in the mould. Lengths of expanded polystyrene cannot be welded together by steam because the steam causes fully expanded beads to partially collapse. (Provisional Basic previously advised in Week 8408)
IT48112/83A1983-04-151983-04-15
METHOD AND APPARATUS TO PRINT AN OBJECT ELONGATED FROM A PLASTIC MATERIAL
IT1167096B
(en)