SE8803737A - - Google Patents

Info

Publication number
SE8803737A
SE8803737A SE8803737A SE8803737A SE8803737A SE 8803737 A SE8803737 A SE 8803737A SE 8803737 A SE8803737 A SE 8803737A SE 8803737 A SE8803737 A SE 8803737A SE 8803737 A SE8803737 A SE 8803737A
Authority
SE
Sweden
Prior art keywords
sectional shape
core
plastics material
mixture
hollow tubular
Prior art date
Application number
SE8803737A
Other versions
SE461139B (en
SE8803737D0 (en
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 filed Critical
Priority to SE8803737A priority Critical patent/SE461139B/en
Publication of SE8803737D0 publication Critical patent/SE8803737D0/en
Publication of SE8803737A publication Critical patent/SE8803737A/xx
Priority to PCT/SE1989/000651 priority patent/WO1991007269A1/en
Publication of SE461139B publication Critical patent/SE461139B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/24—Extrusion presses; Dies therefor using screws or worms
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other
    • 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
    • B29C48/355—Conveyors for extruded 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
    • B29C48/94—Lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/224—Extrusion chambers
    • B30B11/225—Extrusion chambers with adjustable outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Abstract

The invention relates to a method and an apparatus for manufacturing hollow tubular bodies having a circular, internal cross-sectional shape, from a compressible material. A mixture of plastics material and a filling material, with the plastics material preferably in a molten state, is supplied to a first space defined by an inner core or mandrel (4) and an outer matrix (5), where the mixture is subjected to compression. The compressed material (B) is pressed to a second space (6) between a rotatable core (7) and the matrix (5), where the plastics material solidifies. A part of the rotatable core (7) has an elliptical cross-sectional shape and the core (7) functions to impart a circular internal cross-sectional shape to the hollow tubular body during its manufacture.
SE8803737A 1988-10-19 1988-10-19 MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION SE461139B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE8803737A SE461139B (en) 1988-10-19 1988-10-19 MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION
PCT/SE1989/000651 WO1991007269A1 (en) 1988-10-19 1989-11-10 A method for manufacturing hollow tubular bodies and apparatus for carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8803737A SE461139B (en) 1988-10-19 1988-10-19 MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION

Publications (3)

Publication Number Publication Date
SE8803737D0 SE8803737D0 (en) 1988-10-19
SE8803737A true SE8803737A (en) 1988-10-19
SE461139B SE461139B (en) 1990-01-15

Family

ID=20373683

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8803737A SE461139B (en) 1988-10-19 1988-10-19 MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION

Country Status (2)

Country Link
SE (1) SE461139B (en)
WO (1) WO1991007269A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007269A1 (en) * 1988-10-19 1991-05-30 Curt Andersson A method for manufacturing hollow tubular bodies and apparatus for carrying out the method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5976432A (en) * 1996-09-09 1999-11-02 Plymouth Products, Inc. Method and apparatus for the continuous extrusion of block elements
CN105599113B (en) * 2015-12-29 2018-02-16 浙江轩鸣新材料有限公司 It is incubated pipe forming machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387331A (en) * 1965-07-27 1968-06-11 Rexall Drug Chemical Apparatus for extruding seamless plastic tubing
CH490957A (en) * 1968-05-28 1970-05-31 Stanniolfabrik Burgdorf Ag Device for blowing hoses made of thermoplastics
FR1603407A (en) * 1968-06-28 1971-04-19
US3651187A (en) * 1969-10-16 1972-03-21 Hercules Inc Extrusion process
FI803964L (en) * 1980-12-19 1982-06-20 Proplast Oy EXTRUDER FOER FRAMSTAELLNING AV PLASTROER
SE461139B (en) * 1988-10-19 1990-01-15 Curt Andersson MADE TO MANUFACTURE PIPES AND DEVICE BEFORE ITS PREPARATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007269A1 (en) * 1988-10-19 1991-05-30 Curt Andersson A method for manufacturing hollow tubular bodies and apparatus for carrying out the method

Also Published As

Publication number Publication date
SE461139B (en) 1990-01-15
WO1991007269A1 (en) 1991-05-30
SE8803737D0 (en) 1988-10-19

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