FR2140530A1 - Thermoplast tube extrusion head - with uniform annular distribution of flow from extruder to head - Google Patents
Thermoplast tube extrusion head - with uniform annular distribution of flow from extruder to headInfo
- Publication number
- FR2140530A1 FR2140530A1 FR7220472A FR7220472A FR2140530A1 FR 2140530 A1 FR2140530 A1 FR 2140530A1 FR 7220472 A FR7220472 A FR 7220472A FR 7220472 A FR7220472 A FR 7220472A FR 2140530 A1 FR2140530 A1 FR 2140530A1
- Authority
- FR
- France
- Prior art keywords
- head
- storage chamber
- annular
- extrusion head
- extruder
- 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.)
- Withdrawn
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
- 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
- B29C48/25—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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2128610A DE2128610A1 (de) | 1971-06-09 | 1971-06-09 | Spritzkopf zur herstellung eines schlauchfoermigen stranges aus thermoplastischem kunststoff |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2140530A1 true FR2140530A1 (en) | 1973-01-19 |
Family
ID=5810279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7220472A Withdrawn FR2140530A1 (en) | 1971-06-09 | 1972-06-07 | Thermoplast tube extrusion head - with uniform annular distribution of flow from extruder to head |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2128610A1 (fr) |
FR (1) | FR2140530A1 (fr) |
IT (1) | IT956401B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468260A2 (fr) * | 1990-07-24 | 1992-01-29 | Bridgestone/Firestone, Inc. | Dispositif de coextrusion et procédé utilisant une filière rigide pour faire varier le profil extérieur d'un extrudat tubulaire |
-
1971
- 1971-06-09 DE DE2128610A patent/DE2128610A1/de active Pending
-
1972
- 1972-06-07 IT IT25322/72A patent/IT956401B/it active
- 1972-06-07 FR FR7220472A patent/FR2140530A1/fr not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0468260A2 (fr) * | 1990-07-24 | 1992-01-29 | Bridgestone/Firestone, Inc. | Dispositif de coextrusion et procédé utilisant une filière rigide pour faire varier le profil extérieur d'un extrudat tubulaire |
EP0468260A3 (en) * | 1990-07-24 | 1992-04-29 | Bridgestone/Firestone, Inc. | Coextrusion apparatus and method using a rigid die for varying the outer profile of a tubular extrudate |
Also Published As
Publication number | Publication date |
---|---|
IT956401B (it) | 1973-10-10 |
DE2128610A1 (de) | 1973-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |