FR1289838A - A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps - Google Patents

A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps

Info

Publication number
FR1289838A
FR1289838A FR861653A FR861653A FR1289838A FR 1289838 A FR1289838 A FR 1289838A FR 861653 A FR861653 A FR 861653A FR 861653 A FR861653 A FR 861653A FR 1289838 A FR1289838 A FR 1289838A
Authority
FR
France
Prior art keywords
extrusion
varies
tube
manufacturing
steps
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
FR861653A
Other languages
French (fr)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to FR861653A priority Critical patent/FR1289838A/en
Application granted granted Critical
Publication of FR1289838A publication Critical patent/FR1289838A/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
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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)
  • Manufacturing & Machinery (AREA)
FR861653A 1961-05-12 1961-05-12 A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps Expired FR1289838A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR861653A FR1289838A (en) 1961-05-12 1961-05-12 A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR861653A FR1289838A (en) 1961-05-12 1961-05-12 A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps

Publications (1)

Publication Number Publication Date
FR1289838A true FR1289838A (en) 1962-04-06

Family

ID=8755069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR861653A Expired FR1289838A (en) 1961-05-12 1961-05-12 A method of manufacturing by extrusion of a tube having a wall thickness which varies in steps

Country Status (1)

Country Link
FR (1) FR1289838A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1366884A1 (en) * 2002-05-31 2003-12-03 NDH Medical Inc. Apparatus and method of extruding tubing having a variable wall thickness
CN112893644A (en) * 2021-01-29 2021-06-04 无锡鹏德汽车配件有限公司 Punch structure for fine punching and extruding composite forming of metal plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1366884A1 (en) * 2002-05-31 2003-12-03 NDH Medical Inc. Apparatus and method of extruding tubing having a variable wall thickness
US6926509B2 (en) 2002-05-31 2005-08-09 Ndh Medical, Inc. Apparatus for extruding tubing having a variable wall thickness
CN112893644A (en) * 2021-01-29 2021-06-04 无锡鹏德汽车配件有限公司 Punch structure for fine punching and extruding composite forming of metal plate
CN112893644B (en) * 2021-01-29 2024-04-09 江苏鹏德工业科技有限公司 Punch structure for metal plate fine punching extrusion composite forming

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