IT953330B - Procedimento e dispositivo per fabbricare componenti di schiu ma dura da miscugli di materia artificiale - Google Patents

Procedimento e dispositivo per fabbricare componenti di schiu ma dura da miscugli di materia artificiale

Info

Publication number
IT953330B
IT953330B IT732972A IT732972A IT953330B IT 953330 B IT953330 B IT 953330B IT 732972 A IT732972 A IT 732972A IT 732972 A IT732972 A IT 732972A IT 953330 B IT953330 B IT 953330B
Authority
IT
Italy
Prior art keywords
schiu
mixtures
hard
procedure
artificial material
Prior art date
Application number
IT732972A
Other languages
English (en)
Italian (it)
Original Assignee
Messerschmitt Boelkow Blohm
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 Boelkow Blohm filed Critical Messerschmitt Boelkow Blohm
Application granted granted Critical
Publication of IT953330B publication Critical patent/IT953330B/it

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
IT732972A 1971-04-23 1972-04-21 Procedimento e dispositivo per fabbricare componenti di schiu ma dura da miscugli di materia artificiale IT953330B (it)

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 (1)

Publication Number Publication Date
IT953330B true IT953330B (it) 1973-08-10

Family

ID=5805679

Family Applications (1)

Application Number Title Priority Date Filing Date
IT732972A IT953330B (it) 1971-04-23 1972-04-21 Procedimento e dispositivo per fabbricare componenti di schiu ma dura da miscugli di materia artificiale

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
FR2134412B1 (OSRAM) 1975-06-20
DE2119875C3 (de) 1974-01-17
DE2119875B2 (de) 1973-06-14
FR2134412A1 (en) 1972-12-08
DE2119875A1 (de) 1972-11-02

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