BR8105308A - Processo para o controle parcial da espessura de parede na circunferencia especialmente de tubvos formados de pecas previsas para a extrusao a sopro e formados por fusao termoplastica de elevado indice molecular, bem como dispositivo para a realizacao do processo - Google Patents

Processo para o controle parcial da espessura de parede na circunferencia especialmente de tubvos formados de pecas previsas para a extrusao a sopro e formados por fusao termoplastica de elevado indice molecular, bem como dispositivo para a realizacao do processo

Info

Publication number
BR8105308A
BR8105308A BR8105308A BR8105308A BR8105308A BR 8105308 A BR8105308 A BR 8105308A BR 8105308 A BR8105308 A BR 8105308A BR 8105308 A BR8105308 A BR 8105308A BR 8105308 A BR8105308 A BR 8105308A
Authority
BR
Brazil
Prior art keywords
blow
extrusion
high molecular
wall thickness
well
Prior art date
Application number
BR8105308A
Other languages
English (en)
Inventor
G Langecker
Original Assignee
Battenfeld Maschfab
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 Battenfeld Maschfab filed Critical Battenfeld Maschfab
Publication of BR8105308A publication Critical patent/BR8105308A/pt

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
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • 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
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • 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
    • B29C48/25—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
BR8105308A 1980-08-20 1981-08-19 Processo para o controle parcial da espessura de parede na circunferencia especialmente de tubvos formados de pecas previsas para a extrusao a sopro e formados por fusao termoplastica de elevado indice molecular, bem como dispositivo para a realizacao do processo BR8105308A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3031333A DE3031333C2 (de) 1980-08-20 1980-08-20 Verfahren und Vorrichtung zum Einstellen der Wanddicke eines aus thermoplastischem Kunststoff extrudierten Schlauches

Publications (1)

Publication Number Publication Date
BR8105308A true BR8105308A (pt) 1982-05-04

Family

ID=6109971

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8105308A BR8105308A (pt) 1980-08-20 1981-08-19 Processo para o controle parcial da espessura de parede na circunferencia especialmente de tubvos formados de pecas previsas para a extrusao a sopro e formados por fusao termoplastica de elevado indice molecular, bem como dispositivo para a realizacao do processo

Country Status (4)

Country Link
US (1) US4563147A (pt)
AU (1) AU7387081A (pt)
BR (1) BR8105308A (pt)
DE (1) DE3031333C2 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3305242A1 (de) * 1983-02-16 1984-08-16 Battenfeld-Fischer Blasformtechnik GmbH, 5204 Lohmar Pinole fuer den dorn eines schlauchkopfes zur herstellung von schlauchabschnitten oder schlaeuchen aus thermoplastischem kunststoff
US4609340A (en) * 1985-08-23 1986-09-02 Hoover Universal, Inc. Accumulator head with diverter sleeve
DE3744587A1 (de) * 1987-12-31 1989-07-13 Dittberner Gmbh Klebstoff Auft Verfahren zum auftragen von leim auf endlose faeden und entsprechende vorrichtung
JPH0692111B2 (ja) * 1988-10-31 1994-11-16 株式会社日本製鋼所 多層パリソン成形装置
US4874305A (en) * 1988-11-03 1989-10-17 Somerset Technologies, Inc. Accumulator extrusion head for producing striped parisons
US5779959A (en) * 1990-09-20 1998-07-14 General Electric Company Process for forming plastic articles
DE4134341A1 (de) * 1990-11-16 1992-05-21 Theysohn Friedrich Fa Vorrichtung zur herstellung eines profilkoerpers
DE4117995A1 (de) * 1991-06-01 1992-12-03 Theysohn Friedrich Fa Vorrichtung zum ziehen eines langgestreckten profilkoerpers
JPH05104300A (ja) * 1991-10-09 1993-04-27 Kobe Steel Ltd 油圧プレスの加圧速度制御装置
US5356282A (en) * 1992-01-21 1994-10-18 The Geon Company Blow molding extrustion head
US5284434A (en) * 1993-04-02 1994-02-08 The Geon Company Blow molding extrusion head
US5650178A (en) * 1994-11-23 1997-07-22 Bemis Manufacturing Company Co-injection manifold for injection molding
US6964748B2 (en) * 2000-11-30 2005-11-15 Bemis Manufacturing Company Co-injection methods using endothermic-blowing agents and products made therefrom
US6926509B2 (en) * 2002-05-31 2005-08-09 Ndh Medical, Inc. Apparatus for extruding tubing having a variable wall thickness
US7390184B2 (en) * 2005-11-09 2008-06-24 Centoco Plastics Limited Dual injection manifold
US20090028984A1 (en) * 2007-07-26 2009-01-29 Husky Injection Molding Systems Ltd. Transition Channel For Use Between A First Conduit And A Second Conduit In A Molding System
GB0904393D0 (en) * 2009-03-13 2009-04-29 Nestec Sa Apparatus for depositing

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032819A (en) * 1958-11-25 1962-05-08 Owens Illinois Glass Co Apparatus for making plastic articles
US3147515A (en) * 1961-04-07 1964-09-08 Owens Illinois Glass Co Apparatus for extruding tubing
DE1207606B (de) * 1961-08-03 1965-12-23 Rastatter Kunststoffwerk G M B Vorrichtung zum Auspressen eines Schlauches unterschiedlicher Wandstaerke aus thermoplastischen Kunststoffen
US3538548A (en) * 1967-05-19 1970-11-10 Monsanto Co Control apparatus for varying parison thickness
US3690798A (en) * 1969-10-24 1972-09-12 Packaging Ind Inc Extruder head
DE2021219A1 (de) * 1970-04-30 1971-11-11 Indramat Gmbh Vorrichtung zum Verstellen des Austrittsspaltes von Kunststoffmaschinen,insbesondere von Kunststoffblasmaschinen groesserer Leistung
DE2100192C3 (de) * 1971-01-04 1983-02-24 Kautex Werke Reinold Hagen Gmbh, 5300 Bonn Strangpreßkopf zum Herstellen eines Hohlstranges
US3865528A (en) * 1973-11-01 1975-02-11 Moog Inc Extrusion apparatus having electronic interpolator
DE2510127C2 (de) * 1975-03-06 1983-09-22 Battenfeld Maschinenfabriken Gmbh, 5882 Meinerzhagen Strangpreßkopf zum Herstellen eines aus zwei konzentrischen, mit ihren Fließnähten versetzt zueinander angeordneten Schichten bestehenden Verbundschlauches aus thermoplastischem Kunststoff
DE2533077A1 (de) * 1975-07-24 1977-02-10 Kromberg Ges Fuer Ingenieurlei Steuer- und regeleinrichtung zur veraenderung von materialaustrittsquerschnitten
DE2537419C2 (de) * 1975-08-22 1983-08-11 Bekum Maschinenfabriken Gmbh, 1000 Berlin Schmelzeverteiler in Rohr- oder Blasköpfen mit einer Pinole als Kern und diese umgebenden Gehäuse
DE2558780B2 (de) * 1975-12-24 1978-11-09 Kautex Werke Reinold Hagen Gmbh, 5300 Bonn-Holzlar Vorrichtung zum Herstellen von Hohlkörpern aus thermoplastischem Kunststoff im Extrusions-Blasverfahren
DE2654001C2 (de) * 1976-11-27 1986-02-06 Harald 5210 Troisdorf Feuerherm Vorrichtung zum Herstellen von aus thermoplastischem Kunstoff bestehenden Hohlkörpern
JPS5677119A (en) * 1979-11-29 1981-06-25 Japan Steel Works Ltd:The Parison thickness controller for accumulator extrusion molding
JPS5677120A (en) * 1979-11-29 1981-06-25 Japan Steel Works Ltd:The Parison thickness controller for continuous extrusion molding

Also Published As

Publication number Publication date
AU7387081A (en) 1982-02-25
US4563147A (en) 1986-01-07
DE3031333C2 (de) 1983-07-14
DE3031333A1 (de) 1982-03-04

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Ipc: B29C 47/54 (2006.01), B29C 47/20 (2006.0