RO73029B - Process and device for the extrusion of expandable plastics - Google Patents

Process and device for the extrusion of expandable plastics

Info

Publication number
RO73029B
RO73029B RO64758A RO6475870A RO73029B RO 73029 B RO73029 B RO 73029B RO 64758 A RO64758 A RO 64758A RO 6475870 A RO6475870 A RO 6475870A RO 73029 B RO73029 B RO 73029B
Authority
RO
Romania
Prior art keywords
extrusion
expandable plastics
cavity
extruding
expandable
Prior art date
Application number
RO64758A
Other languages
Romanian (ro)
Other versions
RO73029A (en
Inventor
Pierre Emile Boutillier
Lucien Chaudot
Original Assignee
Societe Anonyme Ugine Kuhlmann
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 Societe Anonyme Ugine Kuhlmann filed Critical Societe Anonyme Ugine Kuhlmann
Publication of RO73029A publication Critical patent/RO73029A/en
Publication of RO73029B publication Critical patent/RO73029B/en

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
    • 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
    • B29C44/505—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 extruding the compound through a flat die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/043—Skinned foam

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Inventia se refera la un procedeu pentru extruderea unor materiale plastice extensibile, cel putin într-o stare partial neexpandabila, într-un formator prelung deschis la ambele capete, dispus coaxial cu matrita si avînd o sectiune de intrare egala cu aceea a matritei si o sectiune de evacuare identica cu aceea a produsului necesar, putîndu-se prevede o cavitate în interiorul materialului în timpul extruderii prinmatrita, prin aceasta materialul extrudat se expandeaza spre interior, astfel încîtsa umple cel putin cavitatea.The invention relates to a process for extruding expandable plastics materials, at least in a partially unusable state, into a long open molding on both ends, coaxially arranged with the mold and having an input section equal to that of the die and a section the outlet of which is identical to that of the required product, and a cavity may be provided inside the material during the extrusion, thereby extruding the extrudate to the inside so as to fill at least the cavity.

RO64758A 1969-10-22 1970-10-22 Process and device for the extrusion of expandable plastics RO73029B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6936308A FR2063589A6 (en) 1969-10-22 1969-10-22

Publications (2)

Publication Number Publication Date
RO73029A RO73029A (en) 1984-10-31
RO73029B true RO73029B (en) 1984-11-30

Family

ID=9041938

Family Applications (1)

Application Number Title Priority Date Filing Date
RO64758A RO73029B (en) 1969-10-22 1970-10-22 Process and device for the extrusion of expandable plastics

Country Status (24)

Country Link
JP (1) JPS4812423B1 (en)
AT (1) AT331501B (en)
BE (1) BE757510R (en)
BR (1) BR7023259D0 (en)
CA (1) CA981861A (en)
CH (1) CH532463A (en)
CS (1) CS216179B2 (en)
DE (1) DE2050550C3 (en)
DK (1) DK135526B (en)
ES (1) ES384742A2 (en)
FI (1) FI52043C (en)
FR (1) FR2063589A6 (en)
GB (1) GB1318608A (en)
HU (1) HU163120B (en)
IE (1) IE34595B1 (en)
IT (1) IT941015B (en)
LU (1) LU61898A1 (en)
NL (1) NL167891C (en)
NO (1) NO132417C (en)
OA (1) OA152E (en)
PL (1) PL84474B3 (en)
RO (1) RO73029B (en)
SE (1) SE365981B (en)
ZA (1) ZA707038B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931379A (en) * 1973-07-17 1976-01-06 Cosden Oil & Chemical Company Foamed profile extrusion process
US3954929A (en) * 1973-10-11 1976-05-04 The Dow Chemical Company Method and apparatus for the extrusion of foamable thermoplastic materials
US3978182A (en) * 1973-12-26 1976-08-31 Mobil Oil Corporation Method for extruding a polystyrene foam with variations in mass concentration across the sheet and thermoforming the sheet
IT1074365B (en) * 1977-03-22 1985-04-20 Montedison Spa EXTRUSION PROCEDURE OF SEMI-EXPANDED PLASTIC PROFILES AND RELATED EQUIPMENT
NO154220C (en) * 1979-04-20 1986-08-20 Sentralinst For Ind Forskning WALL CONSTRUCTION AND PROCEDURE FOR ITS MANUFACTURING.
DE3418506C2 (en) * 1984-05-18 1987-02-12 Fa. Carl Freudenberg, 6940 Weinheim Process for producing foams with high heat resistance
FR2580542B1 (en) * 1985-04-23 1987-07-17 Atochem PROCESS FOR EXTRUDING EXPANDABLE PLASTICS
DE102007045900A1 (en) * 2007-09-26 2009-04-09 Rehau Ag + Co Composite body and method for its production
CN109016314A (en) * 2017-06-09 2018-12-18 南京法宁格节能科技股份有限公司 The double methods opened of XPS profile shapes ornamental strip mold and mould therefor
CN116587567B (en) * 2023-04-21 2025-11-25 江苏上上电缆集团有限公司 An extrusion die head for a double-layer co-extruded cable insulation layer with inner multi-color stripes
CN117685688B (en) * 2024-01-19 2024-09-24 小米科技(武汉)有限公司 Electronic expansion valve, control method, device, air conditioner, electronic equipment and medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154264B (en) * 1956-11-20 1963-09-12 Reifenhaeuser Kg Device for the continuous extrusion of molded bodies with a foam core and a shell made of thermoplastic material
NL254014A (en) * 1959-07-22 1900-01-01
FR1255499A (en) * 1960-01-28 1961-03-10 Ets Kuhlmann Lightweight material resistant to pressure and stress, its manufacture and applications
DE1235566B (en) * 1962-04-30 1967-03-02 Huels Chemische Werke Ag Device for extrusion of foam profiles
FR1428652A (en) * 1964-03-03 1966-02-18 Haveg Industries Inc Thermoplastic polymer foam stretched then heat contracted
FR1434808A (en) * 1964-05-29 1966-04-08 Basf Ag Method and device for the manufacture of foamed plastic strips
US3461496A (en) * 1965-11-08 1969-08-19 Thomas W Winstead Apparatus for extruding a skin covered,foamed thermoplastic
FR1498620A (en) * 1966-09-07 1967-10-20 Kuhlmann Ets Method and device for the extrusion of expandable plastics

Also Published As

Publication number Publication date
DK135526C (en) 1977-10-24
GB1318608A (en) 1973-05-31
CH532463A (en) 1973-01-15
NL167891C (en) 1987-04-16
FR2063589A6 (en) 1971-07-09
ATA944370A (en) 1975-11-15
IE34595L (en) 1971-04-22
IT941015B (en) 1973-03-01
DE2050550C3 (en) 1984-11-08
LU61898A1 (en) 1971-08-10
JPS4812423B1 (en) 1973-04-20
BE757510R (en) 1971-04-14
NO132417B (en) 1975-08-04
DE2050550A1 (en) 1971-04-29
DK135526B (en) 1977-05-16
DE2050550B2 (en) 1979-11-29
PL84474B3 (en) 1976-04-30
NO132417C (en) 1975-11-12
FI52043B (en) 1977-02-28
SE365981B (en) 1974-04-08
FI52043C (en) 1977-06-10
NL167891B (en) 1981-09-16
ES384742A2 (en) 1973-09-01
AT331501B (en) 1976-08-25
CA981861A (en) 1976-01-20
ZA707038B (en) 1971-08-25
IE34595B1 (en) 1975-06-25
CS216179B2 (en) 1982-10-29
NL7015500A (en) 1971-04-26
OA152E (en) 1971-12-24
BR7023259D0 (en) 1973-04-05
HU163120B (en) 1973-06-28
RO73029A (en) 1984-10-31

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