GB1326031A - Double barrel extrusion dies - Google Patents

Double barrel extrusion dies

Info

Publication number
GB1326031A
GB1326031A GB1031070A GB1326031DA GB1326031A GB 1326031 A GB1326031 A GB 1326031A GB 1031070 A GB1031070 A GB 1031070A GB 1326031D A GB1326031D A GB 1326031DA GB 1326031 A GB1326031 A GB 1326031A
Authority
GB
United Kingdom
Prior art keywords
bore
bodies
pellets
wear resistant
resistant material
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
GB1031070A
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.)
BROOKES OLDBURY Ltd
Original Assignee
BROOKES OLDBURY 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 BROOKES OLDBURY Ltd filed Critical BROOKES OLDBURY Ltd
Publication of GB1326031A publication Critical patent/GB1326031A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • 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
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6801—Barrels or cylinders characterised by the material or their manufacturing process
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1326031 Extruding; making extruding dies; casting composite tubes BROOKES (OLDBURY) Ltd 19 April 1971 [4 March 1970] 10310/70 Headings B3A B3F and B3P A method of manufacturing a double-barrel extruder 10 comprises the steps of providing a layer of wear resistant material 13 of non- uniform thickness in the bore of each of two tubular bodies, e.g. 14, Fig. 2, by centrifugal casting, removing a portion of each body so as to form a slot 19, and connecting the bodies together, Fig. 1. The bore of each body is produced by boring along an eccentric axis 11, pellets of the wear resistant material are inserted into the bore and with the ends blanked off, the body is placed in a furnace until the pellets are molten whereupon the body is removed and rotated at a high speed about an axis 12 thus forming a non-uniform layer of material. Each body is milled so as to provide slots 19, and the bodies are then welded together.
GB1031070A 1971-04-19 1971-04-19 Double barrel extrusion dies Expired GB1326031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1031070 1971-04-19

Publications (1)

Publication Number Publication Date
GB1326031A true GB1326031A (en) 1973-08-08

Family

ID=9965518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1031070A Expired GB1326031A (en) 1971-04-19 1971-04-19 Double barrel extrusion dies

Country Status (1)

Country Link
GB (1) GB1326031A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614502A1 (en) * 2004-07-08 2006-01-11 Theysohn Extrusionstechnik Gesellschaft m.b.H. Housing for a twin screw extruder and manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1614502A1 (en) * 2004-07-08 2006-01-11 Theysohn Extrusionstechnik Gesellschaft m.b.H. Housing for a twin screw extruder and manufacturing method
US7513039B2 (en) 2004-07-08 2009-04-07 Theysohn Extrusionstechnik Gesellschaft M.B.H. Method of making a double-screw extruder

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee