FR2446169A1 - Adjustable nozzle for extruding various flat sections - convex section nozzle has slit externally divided by adjustable cross:webs - Google Patents
Adjustable nozzle for extruding various flat sections - convex section nozzle has slit externally divided by adjustable cross:websInfo
- Publication number
- FR2446169A1 FR2446169A1 FR8000541A FR8000541A FR2446169A1 FR 2446169 A1 FR2446169 A1 FR 2446169A1 FR 8000541 A FR8000541 A FR 8000541A FR 8000541 A FR8000541 A FR 8000541A FR 2446169 A1 FR2446169 A1 FR 2446169A1
- Authority
- FR
- France
- Prior art keywords
- nozzle
- slit
- adjustable
- flat sections
- webs
- 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.)
- Granted
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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
-
- 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
- B29C48/06—Rod-shaped
-
- 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
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Flat sections, strip or films, of plastic materials are extruded, using a straight outlet passage to a slit nozzle; on the feed side the slit has convex attenuating faces with a rectangular section, the outlet side of the slit is divided by >=1 cross web stretching across its width. System can produce a variety of e.g., rectangular flat sections from various materials at the same speed without changing the nozzle head, i.e. the section can be easily changed, high output rate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2900858A DE2900858C2 (en) | 1979-01-11 | 1979-01-11 | Device for extruding flat plastic strands |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2446169A1 true FR2446169A1 (en) | 1980-08-08 |
FR2446169B1 FR2446169B1 (en) | 1984-01-20 |
Family
ID=6060346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8000541A Granted FR2446169A1 (en) | 1979-01-11 | 1980-01-11 | Adjustable nozzle for extruding various flat sections - convex section nozzle has slit externally divided by adjustable cross:webs |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2900858C2 (en) |
ES (1) | ES487587A1 (en) |
FR (1) | FR2446169A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007235C1 (en) * | 1990-03-07 | 1991-05-23 | W. Doellken & Co. Gmbh, 4300 Essen, De | |
EP0776297B1 (en) * | 1994-08-19 | 1998-08-05 | W.L. Gore & Associates, Inc. | Vented vial for freeze-drying and method of minimizing contamination of freeze-dried products |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3865665A (en) * | 1972-02-04 | 1975-02-11 | George J Marion | Method of producing multi-layer flat film |
US4015926A (en) * | 1976-01-20 | 1977-04-05 | The B. F. Goodrich Company | Multiple strand die head |
FR2353385A1 (en) * | 1976-06-04 | 1977-12-30 | Cellophane Sa | Extrusion die with mouth wedges to subdivide the extrudate - providing different tape profiles from a common die |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2720679A (en) * | 1950-08-31 | 1955-10-18 | Vern C Ratliff | Universal die for forming tire tread |
DE1204568B (en) * | 1961-02-09 | 1965-11-04 | Great Lakes Carbon Corp | Extrusion die for an extrusion press with rectangular inlet and outlet openings |
-
1979
- 1979-01-11 DE DE2900858A patent/DE2900858C2/en not_active Expired
-
1980
- 1980-01-10 ES ES487587A patent/ES487587A1/en not_active Expired
- 1980-01-11 FR FR8000541A patent/FR2446169A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3865665A (en) * | 1972-02-04 | 1975-02-11 | George J Marion | Method of producing multi-layer flat film |
US4015926A (en) * | 1976-01-20 | 1977-04-05 | The B. F. Goodrich Company | Multiple strand die head |
FR2353385A1 (en) * | 1976-06-04 | 1977-12-30 | Cellophane Sa | Extrusion die with mouth wedges to subdivide the extrudate - providing different tape profiles from a common die |
Also Published As
Publication number | Publication date |
---|---|
ES487587A1 (en) | 1980-06-16 |
FR2446169B1 (en) | 1984-01-20 |
DE2900858A1 (en) | 1980-07-24 |
DE2900858C2 (en) | 1986-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |