IT1230889B - Procedimento per realizzare, per coestrusione, un tubo alleggerito e filiera per la sua realizzazione. - Google Patents
Procedimento per realizzare, per coestrusione, un tubo alleggerito e filiera per la sua realizzazione.Info
- Publication number
- IT1230889B IT1230889B IT8920940A IT2094089A IT1230889B IT 1230889 B IT1230889 B IT 1230889B IT 8920940 A IT8920940 A IT 8920940A IT 2094089 A IT2094089 A IT 2094089A IT 1230889 B IT1230889 B IT 1230889B
- Authority
- IT
- Italy
- Prior art keywords
- lightened
- coextrusion
- realization
- create
- procedure
- Prior art date
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
- B29C44/507—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 an annular die
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8809125A FR2633554B1 (fr) | 1988-07-04 | 1988-07-04 | Procede pour realiser, par coextrusion, un tuyau allege et filiere pour sa realisation |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8920940A0 IT8920940A0 (it) | 1989-06-21 |
IT1230889B true IT1230889B (it) | 1991-11-08 |
Family
ID=9368123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8920940A IT1230889B (it) | 1988-07-04 | 1989-06-21 | Procedimento per realizzare, per coestrusione, un tubo alleggerito e filiera per la sua realizzazione. |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT403778B (it) |
BE (1) | BE1006667A3 (it) |
CH (1) | CH680659A5 (it) |
DE (1) | DE3921853C2 (it) |
ES (1) | ES2015163A6 (it) |
FR (1) | FR2633554B1 (it) |
GB (1) | GB2220165B (it) |
IT (1) | IT1230889B (it) |
NL (1) | NL195010C (it) |
PT (1) | PT91013B (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6827888B2 (en) | 2001-01-23 | 2004-12-07 | Genpak Llc | Polymeric foam sheet using ambient gas blowing agent via controlled expansion |
CN102001173B (zh) * | 2010-12-02 | 2013-06-05 | 铜陵三佳科技股份有限公司 | 挤出具有共挤面异型材的共挤模头 |
CN102922723A (zh) * | 2012-11-08 | 2013-02-13 | 苏州金纬机械制造有限公司 | 一种成型管分流模具 |
CN106827449B (zh) * | 2017-01-20 | 2022-11-25 | 广东科志达机械科技有限公司 | 一种吹膜机的吹膜装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL106764C (it) * | 1956-03-22 | 1900-01-01 | ||
GB1128809A (en) * | 1965-10-28 | 1968-10-02 | Monsanto Chemicals | Foamed resins |
US3497915A (en) * | 1967-03-16 | 1970-03-03 | Cupples Container Co | Extrusion die |
CH469550A (de) * | 1967-07-12 | 1969-03-15 | Basf Ag | Ringdüse für Extruder, insbesondere Blaskopf zur Herstellung von Schlauchfolien aus expandierbaren thermoplastischen Kunststoffen |
GB1211860A (en) * | 1967-10-03 | 1970-11-11 | Ici Ltd | A process for the production of pipe |
DE2126976A1 (en) * | 1970-05-29 | 1972-01-20 | Armosig | Extrusion press - with section of constant diameter to allow foaming action to stabilise |
FR2130735A5 (it) * | 1970-05-29 | 1972-11-10 | Armosig | |
FR2139626B3 (it) * | 1971-05-26 | 1973-05-25 | Armosig | |
US3899276A (en) * | 1973-05-29 | 1975-08-12 | Beloit Corp | Annular extrusion die with back pressure control |
US4057610A (en) * | 1975-07-25 | 1977-11-08 | Monsanto Company | Hose reinforced with discontinuous fibers oriented in the radial direction |
DE2610972C2 (de) * | 1976-03-16 | 1984-04-12 | Erich 7326 Heiningen Oprach | Vorrichtung zur Herstellung von Rohren o.ä. Hohlsträngen aus thermoplastischem Kunststoff |
FR2427897A1 (fr) * | 1978-06-09 | 1980-01-04 | Pont A Mousson | Procede d'extrusion et filiere chaude pour sa mise en oeuvre |
FR2455972A1 (fr) * | 1979-05-10 | 1980-12-05 | Sogecan Ste Gle Canalisations | Procede et appareillage pour l'extrusion de tubes plastiques a parois composites |
FR2494180A1 (fr) * | 1980-11-19 | 1982-05-21 | Comp Generale Electricite | Procede de fabrication de tubes ou profiles curvilignes ou feuilles de materiau plastique a conductibilite thermique elevee anisotrope |
DE3233250A1 (de) * | 1982-09-08 | 1984-03-08 | Basf Ag, 6700 Ludwigshafen | Vorrichtung zum strangpressen von thermoplastischen kunststoffen |
-
1988
- 1988-07-04 FR FR8809125A patent/FR2633554B1/fr not_active Expired - Fee Related
-
1989
- 1989-06-16 CH CH2259/89A patent/CH680659A5/fr not_active IP Right Cessation
- 1989-06-19 AT AT0149589A patent/AT403778B/de not_active IP Right Cessation
- 1989-06-21 IT IT8920940A patent/IT1230889B/it active
- 1989-06-26 GB GB8914629A patent/GB2220165B/en not_active Expired - Fee Related
- 1989-06-28 BE BE8900711A patent/BE1006667A3/fr not_active IP Right Cessation
- 1989-06-29 PT PT91013A patent/PT91013B/pt not_active IP Right Cessation
- 1989-07-03 NL NL8901687A patent/NL195010C/nl not_active IP Right Cessation
- 1989-07-03 DE DE3921853A patent/DE3921853C2/de not_active Expired - Fee Related
- 1989-07-03 ES ES8902346A patent/ES2015163A6/es not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2220165A (en) | 1990-01-04 |
PT91013A (pt) | 1990-02-08 |
BE1006667A3 (fr) | 1994-11-16 |
DE3921853A1 (de) | 1990-01-11 |
ES2015163A6 (es) | 1990-08-01 |
IT8920940A0 (it) | 1989-06-21 |
CH680659A5 (it) | 1992-10-15 |
AT403778B (de) | 1998-05-25 |
NL8901687A (nl) | 1990-02-01 |
PT91013B (pt) | 1994-06-30 |
FR2633554B1 (fr) | 1990-10-19 |
ATA149589A (de) | 1997-10-15 |
GB2220165B (en) | 1992-07-01 |
FR2633554A1 (fr) | 1990-01-05 |
GB8914629D0 (en) | 1989-08-16 |
NL195010C (nl) | 2003-06-10 |
DE3921853C2 (de) | 1999-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970919 |