GB794498A - Improvements in or relating to hydraulic extrusion apparatus - Google Patents

Improvements in or relating to hydraulic extrusion apparatus

Info

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
Application number
GB19360/54A
Inventor
Reginald Victor Rowles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fielding and Platt Ltd
WT Henleys Telegraph Works Co Ltd
Original Assignee
Fielding and Platt Ltd
WT Henleys Telegraph Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fielding and Platt Ltd, WT Henleys Telegraph Works Co Ltd filed Critical Fielding and Platt Ltd
Priority to GB19360/54A priority Critical patent/GB794498A/en
Publication of GB794498A publication Critical patent/GB794498A/en
Expired legal-status Critical Current

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.
GB19360/54A 1954-07-01 1954-07-01 Improvements in or relating to hydraulic extrusion apparatus Expired GB794498A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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