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BG41349A1 - Method and device for manufacture of items with dense skin and foamed core made of thermoplastics - Google Patents

Method and device for manufacture of items with dense skin and foamed core made of thermoplastics

Info

Publication number
BG41349A1
BG41349A1 BG8047886A BG4788680A BG41349A1 BG 41349 A1 BG41349 A1 BG 41349A1 BG 8047886 A BG8047886 A BG 8047886A BG 4788680 A BG4788680 A BG 4788680A BG 41349 A1 BG41349 A1 BG 41349A1
Authority
BG
Bulgaria
Prior art keywords
thermoplastics
items
manufacture
core made
foamed core
Prior art date
Application number
BG8047886A
Other languages
English (en)
Inventor
Wetzel
Lange
Anz
Lehmann
Reinholz
Original Assignee
Warnke Umformtech Veb K
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 Warnke Umformtech Veb K filed Critical Warnke Umformtech Veb K
Publication of BG41349A1 publication Critical patent/BG41349A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
BG8047886A 1979-06-14 1980-05-23 Method and device for manufacture of items with dense skin and foamed core made of thermoplastics BG41349A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD79213607A DD143229A1 (de) 1979-06-14 1979-06-14 Verfahren und vorrichtung zur herstellung geschaeumter kunststoffprofile

Publications (1)

Publication Number Publication Date
BG41349A1 true BG41349A1 (en) 1987-06-15

Family

ID=5518685

Family Applications (1)

Application Number Title Priority Date Filing Date
BG8047886A BG41349A1 (en) 1979-06-14 1980-05-23 Method and device for manufacture of items with dense skin and foamed core made of thermoplastics

Country Status (5)

Country Link
BG (1) BG41349A1 (xx)
CS (1) CS224480B1 (xx)
DD (1) DD143229A1 (xx)
DE (1) DE3017120A1 (xx)
FR (1) FR2459122A1 (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580542B1 (fr) * 1985-04-23 1987-07-17 Atochem Procede d'extrusion de matieres plastiques expansibles

Also Published As

Publication number Publication date
DD143229A1 (de) 1980-08-13
FR2459122A1 (fr) 1981-01-09
FR2459122B3 (xx) 1982-05-07
CS224480B1 (en) 1984-01-16
DE3017120A1 (de) 1981-01-08

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