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GB942048A - Improvements in or relating to extrusion dies - Google Patents

Improvements in or relating to extrusion dies

Info

Publication number
GB942048A
GB942048A GB5116/60A GB511660A GB942048A GB 942048 A GB942048 A GB 942048A GB 5116/60 A GB5116/60 A GB 5116/60A GB 511660 A GB511660 A GB 511660A GB 942048 A GB942048 A GB 942048A
Authority
GB
United Kingdom
Prior art keywords
extrusion
section
passage
feb
extruded
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
GB5116/60A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB942048A publication Critical patent/GB942048A/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/69—Filters or screens for the moulding material
    • B29C48/694—Cylindrical or conical filters
    • 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
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/695—Flow dividers, e.g. breaker plates

Landscapes

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

Abstract

942,048. Extrusion dies. FARBWERKE HOECHST A.G. Feb. 12, 1960 [Feb. 18, 1959], No. 5116/60. Heading B5A. An extrusion die comprises an elongated hollow body 14 closed at one end and having a plurality of apertures 18 along a section 15 which connect the interior of the body with an extrusion passage 23 so as to bring about a double change in direction in the flow of material being extruded, as indicated by the arrow 27. In the embodiment illustrated, the extrusion passage 23 is formed between the body 14 and a discharge tube 19 and its cross-sectional area increases in the direction of flow in the region adjacent section 15. The end wall 16 of the body 14 has an inwardly directed conical portion 17 co-extensive with section 15, and a hollow mandrel 22 is secured to this end wall by a bolt 21 which has a central passage 26 in communication with a pipe 24. When thin-walled tubes are extruded, they may be supported immediately after extrusion by compressed air introduced through pipe 24. In another embodiment, oversized apertures 18 are employed in conjunction with a removable apertured screen and changes of effective aperture size and/or number involve merely a change of screen.
GB5116/60A 1959-02-18 1960-02-12 Improvements in or relating to extrusion dies Expired GB942048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF27736A DE1182420B (en) 1959-02-18 1959-02-18 Extruder head with mandrel

Publications (1)

Publication Number Publication Date
GB942048A true GB942048A (en) 1963-11-20

Family

ID=7092581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5116/60A Expired GB942048A (en) 1959-02-18 1960-02-12 Improvements in or relating to extrusion dies

Country Status (3)

Country Link
DE (1) DE1182420B (en)
FR (1) FR1248899A (en)
GB (1) GB942048A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186202B (en) * 1961-01-30 1965-01-28 Heinrich Klein Dr Ing Method and device for manufacturing pipes and hoses made of thermoplastic material with reinforcement inserts
DE8707265U1 (en) * 1987-05-20 1987-08-06 Ruhrchemie Ag, 4200 Oberhausen Extruder for the production of pipes and hollow profiles
DE10315906B4 (en) * 2003-04-08 2006-09-28 Battenfeld Extrusionstechnik Gmbh Device for distributing plastic plastic material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750626A (en) * 1954-10-06 1956-06-19 Western Electric Co Apparatus for plasticizing and straining organic plastic compounds
BE550501A (en) * 1955-08-23 1900-01-01

Also Published As

Publication number Publication date
FR1248899A (en) 1960-12-23
DE1182420B (en) 1964-11-26

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