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GB994567A - Double-wall tube and die for extruding the same - Google Patents

Double-wall tube and die for extruding the same

Info

Publication number
GB994567A
GB994567A GB17948/64A GB1794864A GB994567A GB 994567 A GB994567 A GB 994567A GB 17948/64 A GB17948/64 A GB 17948/64A GB 1794864 A GB1794864 A GB 1794864A GB 994567 A GB994567 A GB 994567A
Authority
GB
United Kingdom
Prior art keywords
bushing
die
tube
mandrel
extrusion
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
GB17948/64A
Inventor
Jakov Juljevich Zolota Revsky
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.)
GNII PLASTICHESKYKH MASS
Original Assignee
GNII PLASTICHESKYKH MASS
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 GNII PLASTICHESKYKH MASS filed Critical GNII PLASTICHESKYKH MASS
Priority to GB17948/64A priority Critical patent/GB994567A/en
Publication of GB994567A publication Critical patent/GB994567A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
    • 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
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-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
    • B29C48/25—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
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/71—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows for layer multiplication
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Landscapes

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

Abstract

994,567. Extension dies. GOSUDARSTVENNY NAUCHNO ISSLEDOVATELSKY INSTITUTE PLASTIC-HESKYKH MASS. April 30, 1964, No. 17948/64. Heading B5A. [Also in Division F2] A double-walled tube of plastics material having substantially concentric internal and external walls connected by four symmetrical bridges running the length of the tube is produced by extrusion through a die comprising a two-part axial mandrel 4, 5 a surrounding coaxial bushing 3 and a housing 2 surrounding the bushing, annular channels of decreasing cross-sectional area in the direction of extrusion being defined between the mandrel 4 and bushing 3, and the bushing 3 and housing 2, the mouth of the bushing having a cylindrical portion with axial slots therein to provide for the formation of said bridges during simultaneous plastics extrusion down both of said annular channels. Material to be extruded passes through filter screens 11 and grate 12 from the extruder to the cross-head die. The wall thickness of the outer tubing is controlled by an adjustable outer die member plate 7 and of the inner tubing by adjusting the axial position of the mandrel 5. Cooling means 17, 18 for the inner tube are provided, the outer tube being cooled and sized in the conventional manner.
GB17948/64A 1964-04-30 1964-04-30 Double-wall tube and die for extruding the same Expired GB994567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB17948/64A GB994567A (en) 1964-04-30 1964-04-30 Double-wall tube and die for extruding the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17948/64A GB994567A (en) 1964-04-30 1964-04-30 Double-wall tube and die for extruding the same

Publications (1)

Publication Number Publication Date
GB994567A true GB994567A (en) 1965-06-10

Family

ID=10104049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17948/64A Expired GB994567A (en) 1964-04-30 1964-04-30 Double-wall tube and die for extruding the same

Country Status (1)

Country Link
GB (1) GB994567A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409941A (en) * 1966-09-06 1968-11-12 Phillips Petroleum Co Apparatus for producing plastic articles
DE2536851A1 (en) * 1975-08-12 1977-02-17 Toppan Printing Co Ltd EXTRUSION FORMING MACHINE FOR MANUFACTURING MULTI-LAYER BLOW MOLDING BLOWS
FR2367599A1 (en) * 1976-05-27 1978-05-12 Tokan Kogyo Co Ltd MANUFACTURING PROCESS OF A MULTI-WALL PIPE IN THERMOPLASTIC MATERIAL
DE2911833A1 (en) * 1978-03-30 1979-10-04 Cincinnati Milacron Austria SPRAY HEAD ARRANGEMENT
EP0243516A1 (en) * 1986-04-28 1987-11-04 UNICOR GmbH Rahn Plastmaschinen Apparatus for the extrusion of a double-wall plastic pipe
GB2290848A (en) * 1994-07-01 1996-01-10 Draftex Ind Ltd Multi channel pipes
EP0825149A1 (en) 1996-08-23 1998-02-25 Scheidt & Bachmann Gmbh Method and apparatus for dispensing kinds of fuel from one petrol pump
EP1215032A1 (en) * 2000-12-15 2002-06-19 FRÄNKISCHE ROHRWERKE GEBR. KIRCHNER GmbH & Co KG Nozzle assembly for coextrusion

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409941A (en) * 1966-09-06 1968-11-12 Phillips Petroleum Co Apparatus for producing plastic articles
DE2536851A1 (en) * 1975-08-12 1977-02-17 Toppan Printing Co Ltd EXTRUSION FORMING MACHINE FOR MANUFACTURING MULTI-LAYER BLOW MOLDING BLOWS
FR2367599A1 (en) * 1976-05-27 1978-05-12 Tokan Kogyo Co Ltd MANUFACTURING PROCESS OF A MULTI-WALL PIPE IN THERMOPLASTIC MATERIAL
DE2911833A1 (en) * 1978-03-30 1979-10-04 Cincinnati Milacron Austria SPRAY HEAD ARRANGEMENT
EP0243516A1 (en) * 1986-04-28 1987-11-04 UNICOR GmbH Rahn Plastmaschinen Apparatus for the extrusion of a double-wall plastic pipe
GB2290848A (en) * 1994-07-01 1996-01-10 Draftex Ind Ltd Multi channel pipes
EP0825149A1 (en) 1996-08-23 1998-02-25 Scheidt & Bachmann Gmbh Method and apparatus for dispensing kinds of fuel from one petrol pump
EP0825149B1 (en) * 1996-08-23 2002-09-04 Scheidt & Bachmann Gmbh Method and apparatus for dispensing kinds of fuel from one petrol pump
EP1215032A1 (en) * 2000-12-15 2002-06-19 FRÄNKISCHE ROHRWERKE GEBR. KIRCHNER GmbH & Co KG Nozzle assembly for coextrusion
US6793475B2 (en) 2000-12-15 2004-09-21 Frankische Rohrwerke Gebr. Kirchner Gmbh & Co. Kg Coextrusion nozzle arrangement
DE10062590B4 (en) * 2000-12-15 2005-12-29 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Nozzle arrangement for coextrusion

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