FR1190773A - Improvements in the manufacture of blown plastic ducts - Google Patents

Improvements in the manufacture of blown plastic ducts

Info

Publication number
FR1190773A
FR1190773A FR1190773DA FR1190773A FR 1190773 A FR1190773 A FR 1190773A FR 1190773D A FR1190773D A FR 1190773DA FR 1190773 A FR1190773 A FR 1190773A
Authority
FR
France
Prior art keywords
manufacture
blown plastic
plastic ducts
ducts
blown
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
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.)
SALPA FRANCAISE SOC
Original Assignee
SALPA FRANCAISE SOC
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 SALPA FRANCAISE SOC filed Critical SALPA FRANCAISE SOC
Application granted granted Critical
Publication of FR1190773A publication Critical patent/FR1190773A/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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
FR1190773D 1958-01-23 1958-01-23 Improvements in the manufacture of blown plastic ducts Expired FR1190773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1190773T 1958-01-23

Publications (1)

Publication Number Publication Date
FR1190773A true FR1190773A (en) 1959-10-15

Family

ID=9666477

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1190773D Expired FR1190773A (en) 1958-01-23 1958-01-23 Improvements in the manufacture of blown plastic ducts

Country Status (1)

Country Link
FR (1) FR1190773A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170011A (en) * 1962-02-14 1965-02-16 Dow Chemical Co Method and apparatus for making film
FR2334487A2 (en) * 1975-12-11 1977-07-08 Windmoeller & Hoelscher COOLING DEVICE FOR SHEATH PLASTIC SHEETS MANUFACTURED BY MEANS OF A BLOWING HEAD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170011A (en) * 1962-02-14 1965-02-16 Dow Chemical Co Method and apparatus for making film
FR2334487A2 (en) * 1975-12-11 1977-07-08 Windmoeller & Hoelscher COOLING DEVICE FOR SHEATH PLASTIC SHEETS MANUFACTURED BY MEANS OF A BLOWING HEAD

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