GB683217A - Improvements in or relating to extrusion dies for making tubes from rubber, plastic materials and the like - Google Patents
Improvements in or relating to extrusion dies for making tubes from rubber, plastic materials and the likeInfo
- Publication number
- GB683217A GB683217A GB357/50A GB35750A GB683217A GB 683217 A GB683217 A GB 683217A GB 357/50 A GB357/50 A GB 357/50A GB 35750 A GB35750 A GB 35750A GB 683217 A GB683217 A GB 683217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- rubber
- plastic materials
- relating
- chamber
- 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.)
- Expired
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
- B29C48/03—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
<PICT:0683217/IV (a)/1> A machine for extruding tubes from rubber, plastic materials, &c. has a die assembly comprising an external die 14 and an internal die 13. Between the two dies is formed an expansion chamber 15 which provides a reservoir of compressed material, and this chamber has a volume per unit length of flow of the material that is substantially greater than the volume per unit length of flow at either the outlet from the chamber or the inlet thereto. Die 13 is secured to torpedo 12 and die 14 to cylinder 11. A screw (not shown) feeds material to the die. An axial hole 17 may supply compressed air to the extruded tube and may inflate it. A taper 16 is formed at the outer end of die 14.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB357/50A GB683217A (en) | 1950-01-06 | 1950-01-06 | Improvements in or relating to extrusion dies for making tubes from rubber, plastic materials and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB357/50A GB683217A (en) | 1950-01-06 | 1950-01-06 | Improvements in or relating to extrusion dies for making tubes from rubber, plastic materials and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB683217A true GB683217A (en) | 1952-11-26 |
Family
ID=9702965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB357/50A Expired GB683217A (en) | 1950-01-06 | 1950-01-06 | Improvements in or relating to extrusion dies for making tubes from rubber, plastic materials and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB683217A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2221866A (en) * | 1988-08-16 | 1990-02-21 | Solvay | Extrusion of thermoplastic pipes |
-
1950
- 1950-01-06 GB GB357/50A patent/GB683217A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2221866A (en) * | 1988-08-16 | 1990-02-21 | Solvay | Extrusion of thermoplastic pipes |
GB2221866B (en) * | 1988-08-16 | 1992-07-01 | Solvay | Extrusion of thermoplastic pipes |
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