IT1244307B - Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface - Google Patents

Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface

Info

Publication number
IT1244307B
IT1244307B IT02142890A IT2142890A IT1244307B IT 1244307 B IT1244307 B IT 1244307B IT 02142890 A IT02142890 A IT 02142890A IT 2142890 A IT2142890 A IT 2142890A IT 1244307 B IT1244307 B IT 1244307B
Authority
IT
Italy
Prior art keywords
expanded
mould
polystyrene
plastic material
moulding articles
Prior art date
Application number
IT02142890A
Other languages
Italian (it)
Other versions
IT9021428A0 (en
IT9021428A1 (en
Inventor
Mario Vismara
Original Assignee
Devi Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Devi Spa filed Critical Devi Spa
Priority to IT02142890A priority Critical patent/IT1244307B/en
Publication of IT9021428A0 publication Critical patent/IT9021428A0/en
Publication of IT9021428A1 publication Critical patent/IT9021428A1/en
Application granted granted Critical
Publication of IT1244307B publication Critical patent/IT1244307B/en

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

To produce an article from expanded polystyrene with a hardened, smooth and impervious outer surface in a single moulding step, it is proposed that the polystyrene be superfluously melted by supplying heat through that portion of the mould which defines this surface, while the polystyrene is sintered in the mould, and that the mould be cooled by introducing a pause during which the polystyrene particles are maintained in a state of pressure which keeps them in contact with the heated mould surface which causes the melting. <IMAGE>
IT02142890A 1990-09-11 1990-09-11 Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface IT1244307B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT02142890A IT1244307B (en) 1990-09-11 1990-09-11 Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02142890A IT1244307B (en) 1990-09-11 1990-09-11 Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface

Publications (3)

Publication Number Publication Date
IT9021428A0 IT9021428A0 (en) 1990-09-11
IT9021428A1 IT9021428A1 (en) 1992-03-11
IT1244307B true IT1244307B (en) 1994-07-08

Family

ID=11181654

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02142890A IT1244307B (en) 1990-09-11 1990-09-11 Method and apparatus for moulding articles in expanded plastic material with non-expanded outer surface

Country Status (1)

Country Link
IT (1) IT1244307B (en)

Also Published As

Publication number Publication date
IT9021428A0 (en) 1990-09-11
IT9021428A1 (en) 1992-03-11

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960919