SE8107529L - EXTRUDES FOR PLASTIC MANUFACTURING - Google Patents

EXTRUDES FOR PLASTIC MANUFACTURING

Info

Publication number
SE8107529L
SE8107529L SE8107529A SE8107529A SE8107529L SE 8107529 L SE8107529 L SE 8107529L SE 8107529 A SE8107529 A SE 8107529A SE 8107529 A SE8107529 A SE 8107529A SE 8107529 L SE8107529 L SE 8107529L
Authority
SE
Sweden
Prior art keywords
screw
torpedo
feeding screw
cylinder
outer end
Prior art date
Application number
SE8107529A
Other languages
Swedish (sv)
Inventor
A J H Heino
E I Puolakka
P O Tormele
Original Assignee
Proplast Oy
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 Proplast Oy filed Critical Proplast Oy
Publication of SE8107529L publication Critical patent/SE8107529L/en

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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C48/25—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
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other

Abstract

The extruder comprises a cylinder (18), a feeding screw (11) rotatable in the cylinder (18), a torpedo means (12) arranged at the outer end of and constituting an extension of the feeding screw (11), and a tool matrix (19) surrounding the torpedo means (12). The torpedo means (12) may be, e.g., rigidly fixed to the outer end of the feeding screw (11) to rotate with the screw (11), or it may be mounted to a shaft (15) passing axially through the feeding screw (11), for rotation independently of the screw (11) in a desired direction at a desired speed, or it may be mounted independently of the screw (11). The extruded pipe has an orientation varying from transversely of its length at its inner surface, to longitudinally at its outer surface. The extended pipe may be of only partially cross linked polyethylene, good joint forming properties, together with acceptable strength. <IMAGE>
SE8107529A 1980-12-19 1981-12-16 EXTRUDES FOR PLASTIC MANUFACTURING SE8107529L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI803964A FI803964L (en) 1980-12-19 1980-12-19 EXTRUDER FOER FRAMSTAELLNING AV PLASTROER

Publications (1)

Publication Number Publication Date
SE8107529L true SE8107529L (en) 1982-06-20

Family

ID=8513995

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8107529A SE8107529L (en) 1980-12-19 1981-12-16 EXTRUDES FOR PLASTIC MANUFACTURING

Country Status (10)

Country Link
JP (1) JPS57128521A (en)
DE (1) DE3149334A1 (en)
DK (1) DK541681A (en)
ES (1) ES8300571A1 (en)
FI (1) FI803964L (en)
FR (1) FR2496546A1 (en)
GB (1) GB2089717A (en)
IT (1) IT1172161B (en)
NL (1) NL8105611A (en)
SE (1) SE8107529L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI79261C (en) * 1983-03-29 1989-12-11 Mitsui Toatsu Chemicals FOERFARANDE OCH ANORDNING FOER FORMNING AV I VAERME HAERDBARA PLASTER.
JPH0244982Y2 (en) * 1985-04-30 1990-11-29
DE8707265U1 (en) * 1987-05-20 1987-08-06 Ruhrchemie Ag, 4200 Oberhausen, De
SE461139B (en) * 1988-10-19 1990-01-15 Curt Andersson MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION
JP2500277B2 (en) * 1990-11-27 1996-05-29 三井東圧化学株式会社 Extrusion molding method and apparatus for phenol resin pipe
SE519100C2 (en) 1998-10-23 2003-01-14 Wirsbo Bruks Ab Apparatus and method for manufacturing extrudable moldings of cross-linkable polymeric materials
JP4684304B2 (en) * 2008-01-23 2011-05-18 日東電工株式会社 Method for producing resin foam and resin foam
CN117245889A (en) * 2023-09-21 2023-12-19 江苏佳润管业有限公司 Polyethylene pipe extruder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244781A (en) * 1962-03-14 1966-04-05 Remington Arms Co Inc Continuous extrusion and orientation of plastic tubing
FR1361159A (en) * 1963-06-26 1964-05-15 Shell Int Research Die head for the extrusion of thermoplastic tubes and tubes obtained therewith
US3387331A (en) * 1965-07-27 1968-06-11 Rexall Drug Chemical Apparatus for extruding seamless plastic tubing

Also Published As

Publication number Publication date
ES508640A0 (en) 1982-11-01
IT8149931A0 (en) 1981-12-17
GB2089717A (en) 1982-06-30
FR2496546A1 (en) 1982-06-25
FI803964L (en) 1982-06-20
JPS57128521A (en) 1982-08-10
DE3149334A1 (en) 1982-07-15
NL8105611A (en) 1982-07-16
DK541681A (en) 1982-06-20
IT1172161B (en) 1987-06-18
ES8300571A1 (en) 1982-11-01

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