GB1359583A - Extrusion heads - Google Patents

Extrusion heads

Info

Publication number
GB1359583A
GB1359583A GB152472A GB152472A GB1359583A GB 1359583 A GB1359583 A GB 1359583A GB 152472 A GB152472 A GB 152472A GB 152472 A GB152472 A GB 152472A GB 1359583 A GB1359583 A GB 1359583A
Authority
GB
United Kingdom
Prior art keywords
die
passages
porous
jan
release agent
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
GB152472A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1359583A publication Critical patent/GB1359583A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/03—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
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/20—Inserts
    • 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
    • B29L2009/00—Layered products
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables

Landscapes

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

Abstract

1359583 Extruding strippable core sheathing SIEMENS AG 12 Jan 1972 [12 Jan 1971] 1524/72 Heading B5A [Also in Division H1] In the simultaneous extrusion from die passages 10, 11 of inner and outer thermoplastics, elastomeric, or rubber sheaths on to an electric cable or a tube passing through a tubular die mandrel 7, subsequent mechanically stripping of the outer sheath from the inner, e.g. for effecting electrical connections is facilitated by preventing adhesion between the sheath by a release agent applied through a porous die wall, e.g. 13, 14, respectively to the inner surface of the outer, and/or the outer surface of the inner layer of sheathing material passing through the die passages 11, 10. The release agent may comprise silicon containing oils, pastes, talcum powder, or mica powder, and may be supplied to the porous die wall via axial and circumferential passages 17, 16, or via radial, axial, and circumferential passages 19, 18 and 15. The porosity of the die wall may be effected by fine bores, or by a porous material, e.g. ceramic, or polyletrafluoroethylene, or sintered bronze. A plurality of the porous die walls may be arranged in the extrusion direction.
GB152472A 1971-01-12 1972-01-12 Extrusion heads Expired GB1359583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712103497 DE2103497A1 (en) 1971-01-12 1971-01-12 Extruder with multiple injection heads

Publications (1)

Publication Number Publication Date
GB1359583A true GB1359583A (en) 1974-07-10

Family

ID=5796908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB152472A Expired GB1359583A (en) 1971-01-12 1972-01-12 Extrusion heads

Country Status (5)

Country Link
AT (1) AT309562B (en)
DE (1) DE2103497A1 (en)
FR (1) FR2121569B1 (en)
GB (1) GB1359583A (en)
IT (1) IT946314B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114799176A (en) * 2022-04-11 2022-07-29 中国地质科学院探矿工艺研究所 Die for pressureless sintering diamond reamer of intermediate frequency furnace

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144337A1 (en) * 1981-11-07 1983-05-19 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Electric power cable or line with a rubber or plastic insulation
DE102006027287B4 (en) * 2005-06-16 2009-08-27 Leoni Kabel Holding Gmbh & Co. Kg electric wire
FI20055641A (en) * 2005-12-02 2007-06-03 Maillefer Sa Method in the extrusion process, extrusion process and equipment for the extrusion process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1345761A (en) * 1962-11-02 1963-12-13 Trefimetaux Improvements to machines for extruding elastomers and plastics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114799176A (en) * 2022-04-11 2022-07-29 中国地质科学院探矿工艺研究所 Die for pressureless sintering diamond reamer of intermediate frequency furnace

Also Published As

Publication number Publication date
IT946314B (en) 1973-05-21
AT309562B (en) 1973-08-27
DE2103497A1 (en) 1972-07-27
FR2121569A1 (en) 1972-08-25
FR2121569B1 (en) 1976-06-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees