DE2119875C3 - Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen - Google Patents

Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen

Info

Publication number
DE2119875C3
DE2119875C3 DE19712119875 DE2119875A DE2119875C3 DE 2119875 C3 DE2119875 C3 DE 2119875C3 DE 19712119875 DE19712119875 DE 19712119875 DE 2119875 A DE2119875 A DE 2119875A DE 2119875 C3 DE2119875 C3 DE 2119875C3
Authority
DE
Germany
Prior art keywords
foam
foaming
mold
hollow body
foaming process
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE19712119875
Other languages
German (de)
English (en)
Other versions
DE2119875B2 (de
DE2119875A1 (de
Inventor
Josef 8850 Donauwoerth Mueller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Priority to DE19712119875 priority Critical patent/DE2119875C3/de
Priority to FR7214273A priority patent/FR2134412A1/fr
Priority to IT732972A priority patent/IT953330B/it
Publication of DE2119875A1 publication Critical patent/DE2119875A1/de
Publication of DE2119875B2 publication Critical patent/DE2119875B2/de
Application granted granted Critical
Publication of DE2119875C3 publication Critical patent/DE2119875C3/de
Expired legal-status Critical Current

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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0446—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by increasing the density locally by compressing part of the foam while still in the mould
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/005—Compensating volume or shape change during moulding, in general

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
DE19712119875 1971-04-23 1971-04-23 Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen Expired DE2119875C3 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19712119875 DE2119875C3 (de) 1971-04-23 1971-04-23 Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen
FR7214273A FR2134412A1 (en) 1971-04-23 1972-04-21 Hard foam prodn - with variable volume core to regulate foaming pressure
IT732972A IT953330B (it) 1971-04-23 1972-04-21 Procedimento e dispositivo per fabbricare componenti di schiu ma dura da miscugli di materia artificiale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712119875 DE2119875C3 (de) 1971-04-23 1971-04-23 Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen

Publications (3)

Publication Number Publication Date
DE2119875A1 DE2119875A1 (de) 1972-11-02
DE2119875B2 DE2119875B2 (de) 1973-06-14
DE2119875C3 true DE2119875C3 (de) 1974-01-17

Family

ID=5805679

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712119875 Expired DE2119875C3 (de) 1971-04-23 1971-04-23 Verfahren und Vorrichtung zum Regulieren des Schäumvorganges beim Herstellen von Hartschaumstoffbauteilen

Country Status (3)

Country Link
DE (1) DE2119875C3 (OSRAM)
FR (1) FR2134412A1 (OSRAM)
IT (1) IT953330B (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889480B1 (fr) 2005-08-05 2008-11-21 Allibert Buckhorn Europ Soc Pa Procede de rotomoulage de pieces creuses, et ossature de structure porteuse

Also Published As

Publication number Publication date
IT953330B (it) 1973-08-10
FR2134412B1 (OSRAM) 1975-06-20
DE2119875B2 (de) 1973-06-14
FR2134412A1 (en) 1972-12-08
DE2119875A1 (de) 1972-11-02

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee