GB756045A - Tubular extruded products of thermoplastic film-forming material - Google Patents
Tubular extruded products of thermoplastic film-forming materialInfo
- Publication number
- GB756045A GB756045A GB14177/53A GB1417753A GB756045A GB 756045 A GB756045 A GB 756045A GB 14177/53 A GB14177/53 A GB 14177/53A GB 1417753 A GB1417753 A GB 1417753A GB 756045 A GB756045 A GB 756045A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- air
- extruded
- adaptor
- aperture
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
- B28B3/2654—Means for heating or cooling the die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
- B28B3/269—For multi-channeled structures, e.g. honeycomb structures
-
- 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
- B29C48/03—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
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
756,045. Extruding tubes from thermoplastic material. BRITISH CELANESE, Ltd. May 19, 1954 [May 20, 1953], No. 14177/53. Class 87(2) Thermoplastic film forming material is extruded in a heat fluidized condition in such a way as to form a product comprising a plurality of parallel tubes, the walls of which are integral with one another. The die head comprises an adaptor 10, which may be bolted to the front end 11 of an extruder, with a conical passage 12 which registers with the outlet and leads to a rectangular passage 14. A die-core assembly, fits in a slot 16 in the adaptor in such a manner that the direction of movement of the material changes through 90 degrees becoming vertically downwards instead of horiontal. Hexagonal cores 21, of gradually increasing section towards the outlet and spaced to form passages 26, are welded to a plug 22 which is flanged at 23 to seat on the upper face 28 of the adaptor. A cover plate 30 rests on the flanges and has an inlet pipe 32 which admits air to a recess 31, from which it passes to holes 27 in the cores. A die-plate 19 is bolted to the lower face of the adaptor and has an aperture 20 shaped to fit round the outside perimeter of the cover to give the honeycomb pattern of die apertures shown in Fig. 2, which shows three rows of aperture as an example. The material is soft as it leaves the die apertures and stretches slightly due to its weight, acquiring a thickness 10-25 per cent less than the width of the aperture and of the order of 3-12 mils. Air is supplied through the bores 27 to the interior of the extruded tubes at a pressure regulated to prevent collapse and avoid undue inflation. Alternatively, the -material may change direction in the horizontal plane and leave the die horizontally, in which case it is stretched by draw-rollers profiled to give an opening corresponding to the aperture 20. A ring of air jets cools the material as it leaves the die. Alternatively, it may be sprayed with cooling water, as extruded into a cooling bath, or in some cases the atmosphere is sufficient. Beyond the draw rollers (where used), the tubing may be cut into lengths, e.g. 6-8 feet. Internal support for the extruded tubes may also be provided by a mandrel, as described in Specification 691,125. This is a hollow ex-' pansion hexagonal in section of a tubular stem which projects from each core and which provides a passage for air which passes into the space between the extended tube and the stem to keep the tube out of contact with the mandrel until it reaches the expansion, the air then passing through suitable outlets into the hollow expansion. Also an arrangement similar to that described in Specification 702,176 may be used to support the extruded tube, employing a series of hexagonal discs in a staggered arrangement, each having part of its edge meeting the inside of the tube, the remainder of the edge being out of contact. In some cases the internal air support may be dispensed with and solid cores used. Suitable materials are cellulose acetate plasticized with diethyl phthalate and triphenyl phosphate, or with other plastiizers e.g. as mentioned in the Specification; cellulose propionate and other thermoplastic cellulose derivatives; polyvinyl compounds; acrylic acid derivatives, and thermoplastic linear condensation polymers. An example is given with dimensions and physical conditions of extruding cellulose acetate. The products are suitable for thermal insulation or, when containing, e.g. colouring agents, for decorative purposes
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14177/53A GB756045A (en) | 1953-05-20 | 1953-05-20 | Tubular extruded products of thermoplastic film-forming material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14177/53A GB756045A (en) | 1953-05-20 | 1953-05-20 | Tubular extruded products of thermoplastic film-forming material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB756045A true GB756045A (en) | 1956-08-29 |
Family
ID=10036396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14177/53A Expired GB756045A (en) | 1953-05-20 | 1953-05-20 | Tubular extruded products of thermoplastic film-forming material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB756045A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1277550B (en) * | 1965-04-15 | 1968-09-12 | Schneider & Co | Device for the production of bodies from plastic with continuous channels running parallel to one another in the direction of the material emerging from the device |
DE1504444B1 (en) * | 1963-03-04 | 1972-03-16 | Yuzo Kawamura | METHOD FOR CONTINUOUS MANUFACTURING OF PLASTIC PANELS WITH VACUUMS EXTENDING IN THE MANUFACTURING DIRECTION AND DEVICE FOR CARRYING OUT THE PROCESS |
FR2159368A1 (en) * | 1971-11-09 | 1973-06-22 | Corning Glass Works | |
US3932081A (en) * | 1972-12-22 | 1976-01-13 | Tamag/Basel Ag | Extruder nozzle for shaping a pulp to form smokable strands or fibers |
DE3142876A1 (en) * | 1980-10-30 | 1982-06-16 | Indumat S.A., 91320 Wissous | DEVICE FOR PRODUCING MATERIAL WITH CELL STRUCTURE |
GB2186836A (en) * | 1986-02-06 | 1987-08-26 | Cadbury Ltd | Extruding an internally supported hollow article |
DE4314861A1 (en) * | 1993-05-05 | 1994-11-10 | Tubus Bauer Gmbh | Process for producing a honeycomb body and honeycomb body |
DE4335583C1 (en) * | 1993-10-19 | 1995-03-02 | Dahm Reinhard | Process for producing composite materials from individual elements from filling phases incorporated in a structural phase |
WO1995011123A1 (en) * | 1993-10-19 | 1995-04-27 | Reinhard Dahm | Method of producing composites consisting of individual filler-material bodies embedded in a matrix structure |
WO2013013770A1 (en) * | 2011-07-28 | 2013-01-31 | J.S. Staedtler Gmbh & Co.Kg | Honeycomb body and method for the production thereof |
-
1953
- 1953-05-20 GB GB14177/53A patent/GB756045A/en not_active Expired
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1504444B1 (en) * | 1963-03-04 | 1972-03-16 | Yuzo Kawamura | METHOD FOR CONTINUOUS MANUFACTURING OF PLASTIC PANELS WITH VACUUMS EXTENDING IN THE MANUFACTURING DIRECTION AND DEVICE FOR CARRYING OUT THE PROCESS |
DE1277550B (en) * | 1965-04-15 | 1968-09-12 | Schneider & Co | Device for the production of bodies from plastic with continuous channels running parallel to one another in the direction of the material emerging from the device |
FR2159368A1 (en) * | 1971-11-09 | 1973-06-22 | Corning Glass Works | |
US3932081A (en) * | 1972-12-22 | 1976-01-13 | Tamag/Basel Ag | Extruder nozzle for shaping a pulp to form smokable strands or fibers |
DE3142876A1 (en) * | 1980-10-30 | 1982-06-16 | Indumat S.A., 91320 Wissous | DEVICE FOR PRODUCING MATERIAL WITH CELL STRUCTURE |
US4834635A (en) * | 1986-02-06 | 1989-05-30 | Cadbury Limited | Extrusion die for extruded product |
GB2186836A (en) * | 1986-02-06 | 1987-08-26 | Cadbury Ltd | Extruding an internally supported hollow article |
GB2186836B (en) * | 1986-02-06 | 1989-11-01 | Cadbury Ltd | Extrusion die |
AU601965B2 (en) * | 1986-02-06 | 1990-09-27 | Cadbury Ltd. | Extrusion die |
DE4314861A1 (en) * | 1993-05-05 | 1994-11-10 | Tubus Bauer Gmbh | Process for producing a honeycomb body and honeycomb body |
US5683782A (en) * | 1993-05-05 | 1997-11-04 | Tubus Bauer Gmbh | Process for producing of a honeycomb structure and honeycomb structure so produced |
DE4335583C1 (en) * | 1993-10-19 | 1995-03-02 | Dahm Reinhard | Process for producing composite materials from individual elements from filling phases incorporated in a structural phase |
WO1995011123A1 (en) * | 1993-10-19 | 1995-04-27 | Reinhard Dahm | Method of producing composites consisting of individual filler-material bodies embedded in a matrix structure |
DE4433778C1 (en) * | 1993-10-19 | 1995-07-20 | Dahm Reinhard | Process for the production of composites from single bodies from filling phases stored in a framework phase |
WO2013013770A1 (en) * | 2011-07-28 | 2013-01-31 | J.S. Staedtler Gmbh & Co.Kg | Honeycomb body and method for the production thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1099867A (en) | Tubular film extrusion with shape imposition | |
US2423260A (en) | Extrusion of tubing | |
CA1047722A (en) | Method and apparatus for the extrusion of tubular thermoplastic film | |
GB756045A (en) | Tubular extruded products of thermoplastic film-forming material | |
US4022558A (en) | Apparatus for the extrusion of tubular thermo-plastic film | |
JPS5824253B2 (en) | Method and apparatus for producing double-walled plastic tubes having an outer wall with annular or helical folds | |
US2177633A (en) | Method and apparatus for making thermoplastic sheeting | |
GB1190472A (en) | Method and apparatus for the production of Tubular Film | |
US3385917A (en) | Method and apparatus for extruding plastics | |
US3577488A (en) | Manufacture of plastic tubular film | |
US4373273A (en) | Air ring having a circular array of a large multiplicity of substantially parallel cell-like passages in the air flow path leading to the outlet | |
GB2143770A (en) | Apparatus for vacuum sizing extruded plastics sections | |
US3867083A (en) | Shape imposition apparatus for the extrusion of tubular thermoplastic film | |
GB1478549A (en) | Apparatus and method for the internal calibration and/or shaping of hollow sections made from thermoplastic synthetic material | |
US4174932A (en) | Apparatus for extruding tubular thermoplastic film | |
JPS6358692B2 (en) | ||
GB1444107A (en) | Cooling apparatus for plastic tubular film made by a blow-head | |
US4995800A (en) | Extrusion die assembly | |
US2952874A (en) | Air ring for use in the manufacture of thermoplastic tubing | |
US3270371A (en) | Axial extruder head with mandrel for extruding hollow profiles | |
US4176155A (en) | Method and apparatus for making film | |
US3784345A (en) | Apparatus for the extrusion of hollow articles | |
GB1128809A (en) | Foamed resins | |
US3618169A (en) | Manufacture of plastic film | |
US3064905A (en) | Manifold for producing endless sheet of a gaseous medium at uniform volumetric flow rate |