GB794498A - Improvements in or relating to hydraulic extrusion apparatus - Google Patents
Improvements in or relating to hydraulic extrusion apparatusInfo
- Publication number
- GB794498A GB794498A GB19360/54A GB1936054A GB794498A GB 794498 A GB794498 A GB 794498A GB 19360/54 A GB19360/54 A GB 19360/54A GB 1936054 A GB1936054 A GB 1936054A GB 794498 A GB794498 A GB 794498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rams
- extrusion
- flow
- container
- passages
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/22—Making metal-coated products; Making products from two or more metals
- B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
- B21C23/26—Applying metal coats to cables, e.g. to insulated electric cables
- B21C23/30—Applying metal coats to cables, e.g. to insulated electric cables on continuously-operating extrusion presses
-
- 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
- B29C48/05—Filamentary, e.g. strands
-
- 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
- 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
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
- B29C48/48—Two or more rams or pistons
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
794,498. Extrusion-machines. FIELDING & PLATT, Ltd., and HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T. Nov. 22, 1955 [July 1, 1954], No. 19360/54. Class 87(2). [Also in Group XXII] A method of extruding metals or synthetic resins to form tubes, rods or cable sheaths comprises forcing the extrudable material through the die by at least two pairs of opposed hydraulic plungers 6, the individual rams of each pair being operated simultaneously and the pairs being operated in succession to produce continuity of flow through the die. The press used for sheathing cables comprises four hydraulic rams 2-5 mounted on a yoke 1 with the horizontal rams 2, 4 working alternately with the vertical rams 3, 5. These rams are preferably controlled as described and claimed in Specifications 695,012 or 770,871 to provide uniformity of flow. The container bore 7 in the extrusion head 8, Fig. 2, communicates through conical passages 20 with a common mixing chamber 10 from which a plurality of passages 14 lead to the extrusion gap. The conical passages 20 tend to resist back-flow of extrusion material into the container bores when the corresponding rams are withdrawn for re-charging. To further resist back-flow a substantial residue of billet material is left in the containers after extrusion therefrom and/or the container bores are of tapering cross-section as described and claimed in Specification 770,872.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19360/54A GB794498A (en) | 1954-07-01 | 1954-07-01 | Improvements in or relating to hydraulic extrusion apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19360/54A GB794498A (en) | 1954-07-01 | 1954-07-01 | Improvements in or relating to hydraulic extrusion apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB794498A true GB794498A (en) | 1958-05-07 |
Family
ID=10128046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19360/54A Expired GB794498A (en) | 1954-07-01 | 1954-07-01 | Improvements in or relating to hydraulic extrusion apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB794498A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001150A1 (en) * | 1978-12-06 | 1980-06-12 | Polymatt Kunststoffe | Process and device for the extrusion of a thermo-hardenable mouldable material |
CN111775424A (en) * | 2020-07-02 | 2020-10-16 | 淮南文峰航天电缆有限公司 | Special-shaped cable sheath extruder head for remote terminal detection diagnosis control system |
-
1954
- 1954-07-01 GB GB19360/54A patent/GB794498A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980001150A1 (en) * | 1978-12-06 | 1980-06-12 | Polymatt Kunststoffe | Process and device for the extrusion of a thermo-hardenable mouldable material |
CN111775424A (en) * | 2020-07-02 | 2020-10-16 | 淮南文峰航天电缆有限公司 | Special-shaped cable sheath extruder head for remote terminal detection diagnosis control system |
CN111775424B (en) * | 2020-07-02 | 2021-12-10 | 淮南文峰航天电缆有限公司 | Special-shaped cable sheath extruder head for remote terminal detection diagnosis control system |
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