CH525769A - Extrudeuse à têtes multiples - Google Patents

Extrudeuse à têtes multiples

Info

Publication number
CH525769A
CH525769A CH51471A CH51471A CH525769A CH 525769 A CH525769 A CH 525769A CH 51471 A CH51471 A CH 51471A CH 51471 A CH51471 A CH 51471A CH 525769 A CH525769 A CH 525769A
Authority
CH
Switzerland
Prior art keywords
head extruder
extruder
head
Prior art date
Application number
CH51471A
Other languages
English (en)
French (fr)
Inventor
Lazzarini Henri
Original Assignee
Saint Gobain
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 Saint Gobain filed Critical Saint Gobain
Publication of CH525769A publication Critical patent/CH525769A/fr

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
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered 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
    • 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
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
CH51471A 1970-01-14 1971-01-13 Extrudeuse à têtes multiples CH525769A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7001236A FR2076414A5 (show.php) 1970-01-14 1970-01-14

Publications (1)

Publication Number Publication Date
CH525769A true CH525769A (fr) 1972-07-31

Family

ID=9049012

Family Applications (1)

Application Number Title Priority Date Filing Date
CH51471A CH525769A (fr) 1970-01-14 1971-01-13 Extrudeuse à têtes multiples

Country Status (11)

Country Link
AT (1) AT318898B (show.php)
BE (1) BE761603A (show.php)
CH (1) CH525769A (show.php)
DE (1) DE2101443A1 (show.php)
ES (1) ES194409Y (show.php)
FR (1) FR2076414A5 (show.php)
GB (1) GB1336504A (show.php)
IE (1) IE35603B1 (show.php)
LU (1) LU62415A1 (show.php)
NL (1) NL7100304A (show.php)
ZA (1) ZA71192B (show.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024057177A1 (en) * 2022-09-13 2024-03-21 Magic Mp S.P.A. Parison forming head group with variable interaxial distance

Also Published As

Publication number Publication date
FR2076414A5 (show.php) 1971-10-15
ZA71192B (en) 1972-04-26
BE761603A (fr) 1971-07-14
GB1336504A (en) 1973-11-07
AT318898B (de) 1974-11-25
ES194409Y (es) 1975-03-16
NL7100304A (show.php) 1971-07-16
IE35603L (en) 1971-07-14
LU62415A1 (show.php) 1971-08-04
DE2101443A1 (de) 1971-07-22
IE35603B1 (en) 1976-03-31
ES194409U (es) 1974-12-01

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Legal Events

Date Code Title Description
PL Patent ceased