GB1161507A - Improvements in or relating to Continuous Extrusion Machines - Google Patents

Improvements in or relating to Continuous Extrusion Machines

Info

Publication number
GB1161507A
GB1161507A GB41303/66A GB4130366A GB1161507A GB 1161507 A GB1161507 A GB 1161507A GB 41303/66 A GB41303/66 A GB 41303/66A GB 4130366 A GB4130366 A GB 4130366A GB 1161507 A GB1161507 A GB 1161507A
Authority
GB
United Kingdom
Prior art keywords
ring
groove
rib
metal
screw
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
GB41303/66A
Inventor
Geoffrey Lord
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB41303/66A priority Critical patent/GB1161507A/en
Publication of GB1161507A publication Critical patent/GB1161507A/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
    • B29C48/25—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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,161,507. Extruding. BRITISH INSULATED CALLENDER'S CABLES Ltd. 14 Sept., 1967 [15 Sept., 1966], No. 41303/66. Heading B3P. A metal extrusion press has a feed screw 2 mounted at its rear end in bearings 8, (9), Fig. 1 (not shown), the front bearing 8 having its inner race retained by a first ring 23 and its outer race by a second ring 26, one of the rings having an annular rib 25 entering with a running fit in an annular groove 31 of the other ring. The rib and groove provide a seal to prevent back flow of extrusion metal into the bearings. A helical or spiral groove may be provided in one of the surfaces of the rib or groove to assist in driving back the extrusion metal. A cooling and lubricating oil is circulated through pipe 29 and chamber 27. Molten metal such as lead or leadbased alloys is fed to both the inside and outside of the screw 2 through port 19 and passage 20. Annular sealing grooves 21 are also provided in the screw and in an inner tubular member 15, and vents 22 prevent a build-up of pressure in the accumulated lead. Ring 23 is of mild steel and ring 26 of phosphor bronze. The invention is used for sheathing cables or making lead pipes.
GB41303/66A 1966-09-15 1966-09-15 Improvements in or relating to Continuous Extrusion Machines Expired GB1161507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB41303/66A GB1161507A (en) 1966-09-15 1966-09-15 Improvements in or relating to Continuous Extrusion Machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41303/66A GB1161507A (en) 1966-09-15 1966-09-15 Improvements in or relating to Continuous Extrusion Machines

Publications (1)

Publication Number Publication Date
GB1161507A true GB1161507A (en) 1969-08-13

Family

ID=10419064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41303/66A Expired GB1161507A (en) 1966-09-15 1966-09-15 Improvements in or relating to Continuous Extrusion Machines

Country Status (1)

Country Link
GB (1) GB1161507A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492297A1 (en) * 1990-12-20 1992-07-01 Paul Troester Maschinenfabrik Extrusion head for sheathing elongated articles
CN111730871A (en) * 2020-07-05 2020-10-02 武汉市新洲三角塑料制品有限公司 Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492297A1 (en) * 1990-12-20 1992-07-01 Paul Troester Maschinenfabrik Extrusion head for sheathing elongated articles
CN111730871A (en) * 2020-07-05 2020-10-02 武汉市新洲三角塑料制品有限公司 Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees