FR2314047A1 - Extrusion dies for balancing flow orientation - causing radial divergence to counter longitudinal orientation - Google Patents
Extrusion dies for balancing flow orientation - causing radial divergence to counter longitudinal orientationInfo
- Publication number
- FR2314047A1 FR2314047A1 FR7518480A FR7518480A FR2314047A1 FR 2314047 A1 FR2314047 A1 FR 2314047A1 FR 7518480 A FR7518480 A FR 7518480A FR 7518480 A FR7518480 A FR 7518480A FR 2314047 A1 FR2314047 A1 FR 2314047A1
- Authority
- FR
- France
- Prior art keywords
- orientation
- radial divergence
- longitudinal orientation
- longitudinal
- compsns
- 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
- B29C48/32—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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- 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
- B29C48/06—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
- B29C48/03—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
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- 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
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/08—Glass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Profile extrusion die head with internal passage profiles constricted to allow radial divergence of the flow path just prior to developing the outlet profile form, is esp. useful for extruding material prone to longitudinal orientation during extrusion, i.e. fibre filled compsns., crystallisable polyolefin or elastomeric compsns. etc. e.g. fibre reinforced rubber hose or sheet. Radial divergence of the flow path after passing through the focal zone for longitudinal orientation deranges the melt structure to obtain a more balanced or random distribution of longitudinal and radial or lateral orientation of material in the prod. cross-section. This for e.g. pipes, increases their burst strength and flexibility by comparison with hose of longitudinally oriented material.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518480A FR2314047A1 (en) | 1975-06-12 | 1975-06-12 | Extrusion dies for balancing flow orientation - causing radial divergence to counter longitudinal orientation |
BE167852A BE842865A (en) | 1975-06-12 | 1976-06-11 | PROCESS AND DEVICE FOR MANUFACTURING PROFILES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7518480A FR2314047A1 (en) | 1975-06-12 | 1975-06-12 | Extrusion dies for balancing flow orientation - causing radial divergence to counter longitudinal orientation |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2314047A1 true FR2314047A1 (en) | 1977-01-07 |
FR2314047B1 FR2314047B1 (en) | 1977-12-09 |
Family
ID=9156465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7518480A Granted FR2314047A1 (en) | 1975-06-12 | 1975-06-12 | Extrusion dies for balancing flow orientation - causing radial divergence to counter longitudinal orientation |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE842865A (en) |
FR (1) | FR2314047A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0627295A1 (en) * | 1993-06-04 | 1994-12-07 | SOLVAY (Société Anonyme) | Method for the continuous extrusion of bioriental tubular structures of crystallizable polymers |
EP0657272A1 (en) * | 1990-07-12 | 1995-06-14 | Bando Chemical Industries, Limited | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
-
1975
- 1975-06-12 FR FR7518480A patent/FR2314047A1/en active Granted
-
1976
- 1976-06-11 BE BE167852A patent/BE842865A/en unknown
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0657272A1 (en) * | 1990-07-12 | 1995-06-14 | Bando Chemical Industries, Limited | Method for manufacturing fiber reinforced elastic sheet, apparatus for manufacturing the same and mold to be used |
EP0627295A1 (en) * | 1993-06-04 | 1994-12-07 | SOLVAY (Société Anonyme) | Method for the continuous extrusion of bioriental tubular structures of crystallizable polymers |
BE1007045A3 (en) * | 1993-06-04 | 1995-02-28 | Solvay | PROCESS FOR THE DIRECT AND CONTINUOUS EXTRUSION OF BIORIENTED TUBULAR STRUCTURES IN CRYSTALLIZABLE POLYMERS. |
Also Published As
Publication number | Publication date |
---|---|
FR2314047B1 (en) | 1977-12-09 |
BE842865A (en) | 1976-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |