GB934393A - Improvements in the manufacture of reinforced plastic tubes - Google Patents
Improvements in the manufacture of reinforced plastic tubesInfo
- Publication number
- GB934393A GB934393A GB15910/62A GB1591062A GB934393A GB 934393 A GB934393 A GB 934393A GB 15910/62 A GB15910/62 A GB 15910/62A GB 1591062 A GB1591062 A GB 1591062A GB 934393 A GB934393 A GB 934393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- tubes
- shell
- split
- mould
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
-
- 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)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
934,393. Moulding reinforced plastic tubes. S. PAVICEVIC. April 26, 1962 [April 28, 1961], No. 15910/62. Class 87(2). A mould, for producing reinforced plastic tubes, comprises a rigid tubular shell 1, end plates 10, 11, and an expansible core, Fig. 3, comprising two longitudinally split resilient tubes 2, 3 fitted one inside the other, the two splits being angularly dislpaced from each other. The outer split tube 3 is chamfered, adjacent to the split, so as to merge smoothly into the contour of the inner tube 2. The angular separation of the splits is maintained by pegs 2a. When the mould is assembled the volume enclosed by the core and end plates is rendered vacuum tight by resilient end seals 15 and by seals 8, 9 between the two split tubes. The shell and end plates are similarly sealed by end seals 16. One embodiment, Fig. 5 (not shown), comprises a divided shell with chambers 17, 18 for the passage of steam or coolant. The shell and core may be shaped as in Figs. 6, 7 (not shown), if tubes having wide or narrow end sections are required. In operation, glass fibre impregnated with liquid plastic is wound on to the core. The mould is assembled, and by means of ports 13, 14, the space between the core and shell, containing the plastic, is evacuated, while pressure is applied inside the core.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP27068A DE1145785B (en) | 1961-04-28 | 1961-04-28 | Mold for the production of pipes from plastic reinforced with fiberglass fabric |
Publications (1)
Publication Number | Publication Date |
---|---|
GB934393A true GB934393A (en) | 1963-08-21 |
Family
ID=7370681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15910/62A Expired GB934393A (en) | 1961-04-28 | 1962-04-26 | Improvements in the manufacture of reinforced plastic tubes |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1145785B (en) |
GB (1) | GB934393A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141953A (en) | 1975-08-05 | 1979-02-27 | Societe Chimique Des Charbonnages Cdf Chimie | Method for accelerating the transformation of the crystalline form of isotactic polybutene pipe |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1213904A (en) * | 1958-11-05 | 1960-04-05 | Babbitt Pipe Co | Reinforced plastic ducts |
-
1961
- 1961-04-28 DE DEP27068A patent/DE1145785B/en active Pending
-
1962
- 1962-04-26 GB GB15910/62A patent/GB934393A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141953A (en) | 1975-08-05 | 1979-02-27 | Societe Chimique Des Charbonnages Cdf Chimie | Method for accelerating the transformation of the crystalline form of isotactic polybutene pipe |
Also Published As
Publication number | Publication date |
---|---|
DE1145785B (en) | 1963-03-21 |
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