RO84845B - Process and installation for producing synthetic material tubes - Google Patents

Process and installation for producing synthetic material tubes

Info

Publication number
RO84845B
RO84845B RO76810A RO7681073A RO84845B RO 84845 B RO84845 B RO 84845B RO 76810 A RO76810 A RO 76810A RO 7681073 A RO7681073 A RO 7681073A RO 84845 B RO84845 B RO 84845B
Authority
RO
Romania
Prior art keywords
calibration mandrel
mandrel
extruded tube
tube
calibration
Prior art date
Application number
RO76810A
Other languages
Romanian (ro)
Other versions
RO84845A (en
Inventor
George A. Petzetakis
Original Assignee
George A. Petzetakis
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
Priority claimed from DE19732311732 external-priority patent/DE2311732B2/en
Application filed by George A. Petzetakis filed Critical George A. Petzetakis
Publication of RO84845A publication Critical patent/RO84845A/en
Publication of RO84845B publication Critical patent/RO84845B/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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
    • B29C55/26—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes biaxial
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/94—Lubricating
    • 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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B29K2995/0051—Oriented mono-axially
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/005—Oriented
    • B29K2995/0053—Oriented bi-axially

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Procedeul conform inventiei supune materialele, într-o prima faza, unei operatii de extindere, cînd are o vîscozitate ridicata, iar în a doua faza, se realizeaza tragerea tubului extrudat peste un dorn de calibrare interioara, în timp ce între tubul care nu este întarit total si dornul de calibrare se introduce un agent de alunecare, practicat fara presiune, astfel încît tubul extrudat antreneaza un strat de agent de alunecare între suprafata lui interioara si suprafata dornului de calibrare, strat a carui grosime pe lungimea dornului de calibrare se aduce progresiv, datorita unor forte radiale care actioneaza asupra tubului extrudat. Instalatia pentru realizarea procedeului este formata dintr-o presa melc pentru debitarea materialului termoplastic dintr-un dispozitiv de extrudare, format dintr-un corp si un dorn de extrudare, dorn care este cuplat direct cu un dorn de calibrare de îmbinare, s-a prevazut un spatiu inelar, în care se diriheaza un fluid de alunecare, fluid care trece liber prin dornul de calibrare si suprafata interioara a tubului extrudat, tub care este înconjurat de un schimbator de caldura, alcatuit din mai multe componente, pentru a raci sau a încalzi tubul realizat cu instalatia respectiva.The process according to the invention subjects the materials, in a first step, to an expanding operation when having a high viscosity, and in the second stage, pulls the extruded tube over an internal calibration mandrel, while between the non-cured tube and a pressureless sliding agent is inserted and the calibration mandrel is inserted so that the extruded tube drives a sliding agent layer between its inner surface and the surface of the calibration mandrel, the layer of which thickness along the length of the calibration mandrel is progressively brought, due to radial forces acting on the extruded tube. The apparatus for carrying out the process consists of a screw press for cutting the thermoplastic material from an extrusion device formed by a body and an extrusion mandrel which is directly coupled to a joint calibration mandrel, in which a sliding fluid is passed, a fluid that passes freely through the calibration mandrel and the inner surface of the extruded tube, which is surrounded by a multi-component heat exchanger to cool or heat the made tube with the respective installation.

RO76810A 1972-11-29 1973-11-28 Process and installation for producing synthetic material tubes RO84845B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GR80372 1972-11-29
GR83772 1972-12-02
DE19732311732 DE2311732B2 (en) 1973-03-09 1973-03-09 METHOD AND SYSTEM FOR MANUFACTURING A HOSE FROM THERMOPLASTIC PLASTIC

Publications (2)

Publication Number Publication Date
RO84845A RO84845A (en) 1984-08-17
RO84845B true RO84845B (en) 1984-09-30

Family

ID=27185125

Family Applications (1)

Application Number Title Priority Date Filing Date
RO76810A RO84845B (en) 1972-11-29 1973-11-28 Process and installation for producing synthetic material tubes

Country Status (23)

Country Link
JP (1) JPS53102372A (en)
AR (1) AR203468A1 (en)
AU (1) AU6288473A (en)
BR (1) BR7309354D0 (en)
CA (1) CA1013111A (en)
CH (1) CH565027A5 (en)
CS (1) CS181257B2 (en)
DD (1) DD107631A5 (en)
EG (1) EG11019A (en)
ES (1) ES420983A1 (en)
FI (1) FI56639C (en)
FR (1) FR2207793B1 (en)
GB (1) GB1456222A (en)
HU (1) HU169602B (en)
IE (1) IE38545B1 (en)
IL (1) IL43634A (en)
IT (1) IT1001942B (en)
LU (1) LU68872A1 (en)
NL (1) NL7316378A (en)
NO (2) NO139727C (en)
OA (1) OA04613A (en)
PH (1) PH12487A (en)
RO (1) RO84845B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551521C2 (en) * 1975-11-17 1984-11-08 Henkel KGaA, 4000 Düsseldorf Process for the production of melt resin profiles
DE2706688C2 (en) * 1977-02-17 1982-05-06 Röhm GmbH, 6100 Darmstadt Method and device for the continuous stretching of a plastic strip
JPS5738137A (en) * 1980-08-21 1982-03-02 Mitsubishi Petrochemical Co Manufacture of composite member
GB2156733B (en) * 1984-03-30 1987-10-28 Nat Res Dev Die drawing of tubular thermoplastics
JPS62168930U (en) * 1986-04-17 1987-10-27
NL8802304A (en) * 1988-09-16 1990-04-17 Wavin Bv EXTRUDED, BIAXIAALLY PROVIDED FOAM PLASTIC TUBE AND METHOD FOR THE MANUFACTURE THEREOF
FI86158C (en) * 1989-09-22 1992-07-27 Jrt Finland Oy KALIBRERINGSVERKTYG.
DE4003696C1 (en) * 1990-02-07 1990-12-13 Petzetakis, George Aristovoulos, Piraeus, Gr
GB9206766D0 (en) * 1992-03-27 1992-05-13 Bp Chem Int Ltd Pipes and their manufacture
AUPN547595A0 (en) * 1995-09-15 1995-10-12 Uponor B.V. Biaxial stretching of plastic tubes
AUPN547495A0 (en) * 1995-09-15 1995-10-12 Uponor B.V. Sizing apparatus
FR2806956B1 (en) 2000-03-29 2003-05-09 Alphacan Sa PROCESS AND LINE FOR THE CONTINUOUS MANUFACTURE OF TUBES OF PLASTIC MATERIAL WITH BI-AXIAL DRAWING, AND TUBE OF PLASTIC MATERIAL OBTAINED
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
DE10249141A1 (en) * 2002-10-22 2004-05-06 Contitech Schlauch Gmbh Die head for production of hollow, internally coated products such as hoses has air and lubricant feed channels with outlets inside the die nozzle outlet
WO2004110726A1 (en) * 2003-06-18 2004-12-23 Groesswang Heinz Extrusion die head
JP4282028B2 (en) * 2004-06-10 2009-06-17 株式会社プラ技研 Catheter forming device
CN116096548A (en) * 2020-09-18 2023-05-09 大金工业株式会社 Method for manufacturing tube, extrusion molding machine, extrusion molding die, winding device, and tube
NL1044469B1 (en) 2022-11-16 2024-05-28 Wavin Bv Improved tie bar for a system for biaxial expansion of polymeric pipe
NL1044470B1 (en) 2022-11-16 2024-05-28 Wavin Bv Improved system for biaxial expansion of polymeric pipe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160918A (en) * 1961-11-15 1964-12-15 berggren etal

Also Published As

Publication number Publication date
PH12487A (en) 1979-03-23
HU169602B (en) 1976-12-28
JPS53102372A (en) 1978-09-06
GB1456222A (en) 1976-11-24
FI56639C (en) 1980-03-10
IL43634A0 (en) 1974-03-14
NL7316378A (en) 1974-05-31
AU6288473A (en) 1975-05-29
BR7309354D0 (en) 1974-09-05
CA1013111A (en) 1977-07-05
DD107631A5 (en) 1974-08-12
NO782968L (en) 1974-05-30
JPS5752901B2 (en) 1982-11-10
CS181257B2 (en) 1978-03-31
IT1001942B (en) 1976-04-30
LU68872A1 (en) 1974-03-25
FR2207793B1 (en) 1978-03-10
CH565027A5 (en) 1975-08-15
NO139727C (en) 1979-05-02
IE38545L (en) 1974-05-29
IE38545B1 (en) 1978-04-12
FR2207793A1 (en) 1974-06-21
NO139727B (en) 1979-01-22
IL43634A (en) 1976-10-31
EG11019A (en) 1976-11-30
AR203468A1 (en) 1975-09-15
OA04613A (en) 1980-07-31
ES420983A1 (en) 1976-04-01
FI56639B (en) 1979-11-30
RO84845A (en) 1984-08-17

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