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FR2463675A2 - Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support - Google Patents

Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support Download PDF

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Publication number
FR2463675A2
FR2463675A2 FR7921379A FR7921379A FR2463675A2 FR 2463675 A2 FR2463675 A2 FR 2463675A2 FR 7921379 A FR7921379 A FR 7921379A FR 7921379 A FR7921379 A FR 7921379A FR 2463675 A2 FR2463675 A2 FR 2463675A2
Authority
FR
France
Prior art keywords
tin
plastics
coated metal
plating
support
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7921379A
Other languages
French (fr)
Other versions
FR2463675B2 (en
Inventor
Jean-Claude Blandin
Louis Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 FR7824662A external-priority patent/FR2434326A1/en
Application filed by Individual filed Critical Individual
Priority to FR7921379A priority Critical patent/FR2463675A2/en
Publication of FR2463675A2 publication Critical patent/FR2463675A2/en
Application granted granted Critical
Publication of FR2463675B2 publication Critical patent/FR2463675B2/fr
Granted legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04Coatings characterised by the materials used
    • F16L58/10Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/109Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being an extruded layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion 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
    • B29C48/151Coating hollow articles
    • B29C48/152Coating hollow articles the inner surfaces thereof
    • B29C48/153Coating both inner and outer surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00Layered products having a non-planar shape
    • B32B1/08Tubular products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

In the prodn. of a plastics-coated metal (esp. Al) tube by ultrasonic welding of a strip, adhesion between the tube and the extruder die (used as a support during the operation) is prevented by using a tin-plated die.

Description

RÉPUBLIQUE FRAN AISEFRENCH REPUBLIC

INSTITUT NATIONALNATIONAL INSTITUTE

DE LA PROPRIÉTÉ INDUSTRIELLEOF INDUSTRIAL PROPERTY

PARIS O NI de publication: (A n'utiliser que pour les  PARIS O NI publication: (To be used only for

commandes de reproduction).reproduction orders).

2 463 6752,463,675

A2A2

DEMANDEREQUEST

DE CERTIFICAT D'ADDITIONCERTIFICATE OF ADDITION

No 79 21379No 79 21379

Se référant: au brevet d'invention n 78 24662 du 25 août 1978.  Referring to: Patent No. 78 24662 of August 25, 1978.

(i) Tube composite métal-matière plastique et procédé pour le fabriquer.  (i) Metal-plastic composite pipe and method for making it

(i) Classification internationale (Int Cl. 3). B 29 F 3/00; B 32 B 1/08; F 16 L 9/14, 58/10.  (i) International Classification (Int Cl. 3). B 29 F 3/00; B 32 B 1/08; F 16 L 9/14, 58/10.

@ @@@ @z@ @@@ @z

Date de dépôt........................ 24 août 1979.  Date of deposit ........................ 24 August 1979.

Priorité revendiquée: Date de la mise à la disposition du  Priority claimed: Date of the making available to the

public de la demande............ B.O.P.I. -" Listes " n 9 du 27-2-1981.  public demand ............ B.O.P.I. - "Lists" n 9 of 27-2-1981.

tl) Déposant: OLLIVIER Jean Félix, résidant en France.  tl) Depositor: OLLIVIER Jean Félix, residing in France.

) Invention de: Jean-Claude Blandin et Louis Richard.  ) Invention of: Jean-Claude Blandin and Louis Richard.

Y) Titulaire: Idem 0 Mandataire: Cabinet Boettcher,  Y) Holder: Idem 0 Agent: Cabinet Boettcher,

23, rue La Boétie, 75008 Paris.23, rue La Boétie, 75008 Paris.

Certificat(s) d'addition antérieur(s): D Vente des fascicules à l'IMPRIMERIE NATIONALE. 27, rue de la Convention - 75732 PARIS CEDEX 15  Previous Certificate (s) of Addition (s): D Sale of fascicles at NATIONAL PRINTING. 27, rue de la Convention - 75732 PARIS CEDEX 15

Le brevet principal donne la description détaillée  The main patent gives the detailed description

d'un procédé et d'un appareillage pour la fabrication d'un tube composite métal-matière plastique, qui commence par la création d'un tube soudé longitudinalement. Ce dernier s'obtient à partir d'un feuillard métallique qui est refermé sur lui-même pour  a method and apparatus for manufacturing a metal-plastic composite tube, which begins with the creation of a longitudinally welded tube. The latter is obtained from a metal strip which is closed on itself for

donner un cylindre puis qui est soudé.  give a cylinder and then that is welded.

La conformation du feuillard lui est imposée progressivement au cours de son passage dans un organe de mise en forme. Cet organe est disposé dans la région amont d'une filière allongée qui pénètre à l'intérieur du tube métallique soudé o s'effectue l'injection d'une couche intérieure de  The conformation of the strip is imposed gradually during its passage in a shaping member. This member is arranged in the upstream region of an elongated die which penetrates inside the welded metal tube where the injection of an inner layer of

matière plastique.plastic material.

La soudure du tube métallique refermé est exécutée dans l'intervalle qui s'étend entre la sortie de l'organe de  The weld of the closed metallic tube is executed in the interval which extends between the exit of the

mise en forme et la sortie de la filière.  formatting and output of the die.

Selon l'invention décrite dans le brevet principal, on peut utiliser tous moyens connus appropriés pour souder le tube métallique le long d'une ligne longitudinale continue, et il-est envisagé de se servir de la filière allongée comme support du tube en cours de soudure ou comme moyen antagoniste à un autre moyen extérieur quand le mode de soudure choisi en comporte.  According to the invention described in the main patent, it is possible to use any known means suitable for welding the metal tube along a continuous longitudinal line, and it is envisaged to use the elongated die as a support for the tube being produced. welding or as an antagonistic means to another external means when the selected welding mode has.

En particulier, il est prévu dans le brevet prin-  In particular, it is provided in the main patent

cipal de réaliser la soudure du tube par ultrasons à l'aide d'une molette de soudure appliquée sur le tube refermé sur lui-même et supporté intérieurement par la surface extérieure  to perform the welding of the tube by ultrasound using a welding wheel applied to the tube closed on itself and supported internally by the outer surface

de la filière d'extrusion de la matière plastique.  extrusion die of the plastic material.

On a constaté, par de nombreux essais pratiques,  It has been found, by many practical tests,

que ce procédé de fabrication fournit des résultats satisfai-  whereas this manufacturing process provides satisfactory results

sants mais on a rencontré des difficultés quand le feuillard de départ est en aluminium. En effet, dans un tel cas, ainsi que dans d'autres mais à un degré moindre quand il s'agit d'un autre métal, du fait de la propagation des vibrations dues à l'opération de soudure par ultrasons, l'organe de mise en forme du feuillard et la surface extérieure de la filière ont une tendance nette à produire un phénomène de grippage avec le feuillard. Autrement dit, ce dernier a tendance à adhérer à l'organe de mise en forme et à la filière, plus ou moins rapidement mais d'une manière qui peut finir par devenir presque totale. De toute façon, dès qu'un début d'adhérence se manifeste, la fabrication du tube composite est compromise puisqu'une vitesse régulière de défilement est une condition  but we encountered difficulties when the starting strip is aluminum. Indeed, in such a case, as in others but to a lesser extent when it is another metal, because of the propagation of the vibrations due to the ultrasonic welding operation, the organ the shaping of the strip and the outer surface of the die have a clear tendency to produce a seizing phenomenon with the strip. In other words, the latter tends to adhere to the shaping member and the die, more or less quickly but in a way that can end up becoming almost total. Anyway, as soon as a beginning of adhesion manifests, the manufacture of the composite tube is compromised since a regular speed of scrolling is a condition

importante à observer.important to observe.

La présente invention a pour but d'éliminer cette difficulté et de supprimer, sinon totalement tout au moins dans une grande mesure, le risque d'adhérence du feuillard en  The present invention aims to eliminate this difficulty and to eliminate, if not totally at least to a large extent, the risk of adhesion of the strip to

aluminium à la filière et à l'organe de mise en forme.  aluminum to the die and the shaping member.

Selon l'invention, on parvient à ce résultat de la façon suivante. Quand il s'agit d'une pièce exposée à une température suffisamment basse, comme l'organe de mise en forme, on réalise cette pièce dans l'une des matières suivantes polytétrafluoroéthylène, résine polyimide, résine époxyde résistante à la chaleur. Quand il s'agit d'une pièce exposée à une température trop élevée pour que les matières ci-dessus puissent la supporter, ce qui est le cas de la filière, on réalise cette pièce en acier et on étame sa surface dans la région o le danger d'adhérence est susceptible de se manifester. Dans le cas particulier envisagé ici, on étame la surface extérieure de la filière sur toute sa longueur en  According to the invention, this result is achieved as follows. When it is a part exposed to a sufficiently low temperature, such as the shaping member, this part is produced in one of the following polytetrafluoroethylene materials, polyimide resin, heat-resistant epoxy resin. When it is a part exposed to a temperature too high so that the above materials can withstand it, which is the case of the die, this steel part is made and its surface is tinned in the region o the danger of adhesion is likely to manifest itself. In the particular case envisaged here, the outer surface of the die is tinned throughout its entire length.

contact avec le feuillard en aluminium.  contact with the aluminum strip.

9C-401 Cas 3a - RC.FL9C-401 Case 3a - RC.FL

PREMIER CERTIFICAT D'ADDITIONFIRST CERTIFICATE OF ADDITION

au brevet d'invention no 78 24662 du 25 AOUT 1978 OLLIVIER Jean Félix Tube composite métal-matière plastique  to the patent of invention No. 78 24662 of August 25, 1978 OLLIVIER Jean Félix Tube composite metal-plastic material

et procédé pour le fabriquer.and process for making it.

(Invention de BL>ANDIN Jean-Claude et RICHARD Louis  (Invention of BL> ANDIN Jean-Claude and RICHARD Louis

ABREGE DESCRIPTIFABBRIEF DESCRIPTION

L'invention a pour objet un perfectionnement apporté  The subject of the invention is an improvement made

à un appareillage pour la fabrication d'un tube composite métal-  to an apparatus for the manufacture of a metal composite tube

-matière plastique à partir d'un feuillard en aluminium refermé  - plastic material from a closed aluminum foil

et soudé.and soldered.

Pour supprimer l'adhérence entre la filière d'extru-  To remove the adhesion between the extrusion die

sion servant de support au tube pendant sa soudure aux ultrasons  support for the tube during its ultrasonic welding

on utilise une filière dont la surface extérieure a été étamée.  a die is used whose outer surface has been tinned.

L'invention est utile pour la soudure aux ultrasons de tubes en aluminium ou en d'autres métaux exposés à adhérer à  The invention is useful for ultrasonic welding of aluminum or other exposed metal tubes to adhere to

leurs supports par suite des vibrations.  their supports as a result of the vibrations.

FR7921379A 1978-08-25 1979-08-24 Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support Granted FR2463675A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7921379A FR2463675A2 (en) 1978-08-25 1979-08-24 Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7824662A FR2434326A1 (en) 1978-08-25 1978-08-25 Hot water pipes comprising metal sheath with extruded plastic lining - made using internal pressure to ensure interfacial bonding
FR7921379A FR2463675A2 (en) 1978-08-25 1979-08-24 Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support

Publications (2)

Publication Number Publication Date
FR2463675A2 true FR2463675A2 (en) 1981-02-27
FR2463675B2 FR2463675B2 (en) 1982-11-05

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FR7921379A Granted FR2463675A2 (en) 1978-08-25 1979-08-24 Ultrasonically welding a plastics-coated metal tube - avoiding adhesion by tin-plating the extruder die surface acting as support

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FR (1) FR2463675A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237234A2 (en) * 1986-02-26 1987-09-16 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method
WO1988003084A1 (en) * 1986-10-23 1988-05-05 Kitechnology (U.K.) Limited Apparatus for forming plastics coated tube
US5011562A (en) * 1988-08-03 1991-04-30 Kitechnology B.V. Apparatus for forming sealed lengths of plastics coated tube

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410183A (en) * 1909-03-25 1910-05-13 Henry William Handcock Method and apparatus for covering electrical conductors
GB461784A (en) * 1936-02-11 1937-02-24 Power Flexible Tubing Company Improvements relating to the manufacture of thin-walled metal tubing
AU1329266A (en) * 1967-09-12 1969-03-20 Bentley Sawmills Pty. Ltd Improved die for shaping metal sections
GB1201929A (en) * 1966-11-24 1970-08-12 Grace W R & Co Improvements relating to metal-metal bonding
DE2223001A1 (en) * 1971-05-24 1972-12-14 Olin Corp Device for forming a tube from a strip of material
FR2149335A1 (en) * 1971-08-16 1973-03-30 Kabel Metallwerke Ghh
US3968918A (en) * 1974-11-11 1976-07-13 Andrew Corporation Method and apparatus for producing continuous lengths of coaxial products

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR410183A (en) * 1909-03-25 1910-05-13 Henry William Handcock Method and apparatus for covering electrical conductors
GB461784A (en) * 1936-02-11 1937-02-24 Power Flexible Tubing Company Improvements relating to the manufacture of thin-walled metal tubing
GB1201929A (en) * 1966-11-24 1970-08-12 Grace W R & Co Improvements relating to metal-metal bonding
AU1329266A (en) * 1967-09-12 1969-03-20 Bentley Sawmills Pty. Ltd Improved die for shaping metal sections
DE2223001A1 (en) * 1971-05-24 1972-12-14 Olin Corp Device for forming a tube from a strip of material
FR2149335A1 (en) * 1971-08-16 1973-03-30 Kabel Metallwerke Ghh
US3968918A (en) * 1974-11-11 1976-07-13 Andrew Corporation Method and apparatus for producing continuous lengths of coaxial products

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/74 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237234A2 (en) * 1986-02-26 1987-09-16 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method
EP0237234A3 (en) * 1986-02-26 1989-03-08 Sekisui Kagaku Kogyo Kabushiki Kaisha Method for the production of a composite pipe and an apparatus for carrying out said method
WO1988003084A1 (en) * 1986-10-23 1988-05-05 Kitechnology (U.K.) Limited Apparatus for forming plastics coated tube
US4911778A (en) * 1986-10-23 1990-03-27 Kitechnology, B.V. Apparatus for forming plastics coated tube
US5011562A (en) * 1988-08-03 1991-04-30 Kitechnology B.V. Apparatus for forming sealed lengths of plastics coated tube

Also Published As

Publication number Publication date
FR2463675B2 (en) 1982-11-05

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