WO1994014598A1 - Soudure de tubes sur des elements - Google Patents

Soudure de tubes sur des elements Download PDF

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Publication number
WO1994014598A1
WO1994014598A1 PCT/CA1993/000545 CA9300545W WO9414598A1 WO 1994014598 A1 WO1994014598 A1 WO 1994014598A1 CA 9300545 W CA9300545 W CA 9300545W WO 9414598 A1 WO9414598 A1 WO 9414598A1
Authority
WO
WIPO (PCT)
Prior art keywords
article
tube
sealing element
section
thermoplastic polymer
Prior art date
Application number
PCT/CA1993/000545
Other languages
English (en)
Inventor
Anthony Joseph Cesaroni
Original Assignee
Anthony Joseph Cesaroni
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 Anthony Joseph Cesaroni filed Critical Anthony Joseph Cesaroni
Publication of WO1994014598A1 publication Critical patent/WO1994014598A1/fr

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53465—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat said single flat elements being provided with holes facing the tube ends, e.g. for making heat-exchangers
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/062—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing tubular conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F28F9/187—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding at least one of the parts being non-metallic, e.g. heat-sealing plastic elements
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/18—Heat-exchangers or parts thereof

Definitions

  • the present invention relates to a method of bonding tubes to articles, especially channelled articles and preferably articles in the form of channelled plates, so as to provide fluid flow communication between the tubes and channels through the articles.
  • the method relates to the bonding of tubes into plates in the manufacture of heat exchangers.
  • thermoplastic polymers and methods for the manufacture of such heat exchangers are known.
  • a number of heat exchangers formed from thermoplastic polymers and methods for the manufacture thereof are disclosed in PCT patent application WO91/02209 of A.J. Cesaroni, published 1991 February 21, and in the published patent applications referred to therein.
  • Thermoplastic polymer heat exchangers of a tubular construction are described in U.S. Patents 4 923 004, issued 1990 May 08, and 5 078 946, issued 1992 January 07, both of E.L. Fletcher and T.H. Kho, in which tubes are integrally formed with a manifold section in a moulding or similar process.
  • a preferred material of construction for the heat exchangers is aliphatic polyamide.
  • thermoplastic polymers While heat exchangers formed from thermoplastic polymers have been fabricated by the techniques described in the above patents and published patent applications, improvements in the construction and methods of fabrication would be beneficial to add further flexibility and economy to the fabrication and use of heat exchangers formed from thermoplastic polymers.
  • assembly of tubes into plates or other structures in the manufacture of tube heat exchangers is usually a tedious and time-consuming process, often involving use of adhesives to bond the tubes into plates.
  • a method for the bonding of thermoplastic polymer tubes into thermoplastic polymer articles in a fluid- tight manner has now been found.
  • the present invention provides a method of bonding a thermoplastic polymer tube to a thermoplastic polymer article to form a fluid flow passage therethrough, said article having a channel extending from a first side of the article to a second side thereof, said channel exiting from the article at the second side through a bevelled section and a recessed section, comprising in sequence the steps of:
  • the sealing element is an ultrasonic sound sealing element.
  • the tube slidingly engages the channel.
  • the thermoplastic polymers of the tube and of the article are compatible when molten.
  • the sealing element is of the same cross-sectional shape as the channel.
  • the metal rod is inserted into the tube from the first side of the article.
  • Fig. l is a schematic representation of a channelled article and a sealing element, with Fig. 1A showing the tip of the sealing element;
  • Fig. 2 is a schematic representation of the article of Fig. 1 with the tube and rod in place;
  • Fig. 3 is a schematic representation of the article during movement of the sealing element
  • Fig. 4 is a schematic representation of the article with the sealing element in the fully extended position; and Fig. 5 is a schematic representation of the article after the tube has been bonded.
  • article 1 is shown as having a channel 2 extending from the first side 3 to the second side 4 of the article.
  • Channel 2 is shown as having a uniform cross-section over the major portion of its length.
  • the section of channel 2 near second side 4 is shown as having recess section 5 and bevelled section 6, such that the diameter of channel 2 increases at bevelled section 6 in a continuous manner to the diameter of recess section 5.
  • Sealing element 7, shown in part, has end element 8 located above recess section
  • end element 8 has a diameter that is slightly larger than the diameter of recess section 5.
  • End element 8 has axial orifice 9 located in tip 10 thereof.
  • Tip 10 is shown as having a square cross section, but in an embodiment tip 10 is concave, as shown in Fig. 1A.
  • Fig. 2 shows article 1 and sealing element 7 as described above.
  • tube 11 is shown as being located in channel 2, with tube 11 extending away from both first side 3 and second side 4 of article 1.
  • Tube 11 extends away from first side 3 for a considerable distance, as determined by the design of the article.
  • Tube 11 extends away from second side 4 for a short distance, which is referred to herein as protruding from second side 4; tube 11 protrudes to an extent less than the distance between second side 4 and tip 10 of sealing element 7.
  • tip 10 is in contact with end 12 of tube 11 due to tip 10 being moved into such contact.
  • Tube 11 is shown as being in sliding engagement with the surface of channel 2, prior to bevelled section 6 and recess section 5.
  • Rod 13 is located within tube 11, and in sliding engagement therewith, with rod end 14 extending beyond end 12 of tube 11 and into axial orifice 9.
  • Fig. 3 shows the next stage in the method, with sealing element 7 moving towards article 1.
  • Sealing element 7 may be a heated element or, preferably, an ultrasonic sealing device, such that sealing element 7 causes tube 11 to melt, forming melt pool 15.
  • Rod 13 is shown as being stationary, although it is not necessarily so.
  • Fig. 4 shows sealing element 7 in its fully extended position, extending beyond second side 4 and into recess section 5.
  • sealing element 7 has a diameter greater than the diameter of recess section 5
  • sealing element 7 has contacted and melted part of edge 17 of recess section 5.
  • the polymer of tube 11, melted in the form of melt pool 15 together with molten polymer from edge 17 has formed molten polymer 16 which is located in bevelled section 6 of channel 2.
  • Fig. 5 shows article 1 having tube 11 bonded thereto.
  • Polymer block 18 has been formed in bevelled section 6 of channel 2.
  • Polymer block 18 is connected to and forms part of tube 11 at junction 19 and is bonded to article 1 along bond 20.
  • tube 11 is inserted into channel 2 of article 1 so that tube 11 protrudes beyond second side 4 of article 1.
  • Metal rod 13 is inserted into tube 11 from first side 3, so that it extends beyond tube 11 on second side 4 of article 1.
  • Sealing element 7 is brought into contact with the end of tube 11, with the end of rod 13 entering axial orifice 9 of tip 10 of sealing element 7; this maintains the alignment of tube 11, article 1 and sealing element 7, and ensures that tube 11 melts without collapsing and causing a restricted or an absence of fluid flow passage through tube 11.
  • Sealing element 7 is moved towards article 1 (or conversely article 1 is moved towards sealing element 7) to the extent that sealing element 7 contact the edge of recess section 5; as discussed above, tip 10 of sealing element 7 has a diameter that is greater than, preferably only slightly greater than, the diameter of recess section 5 to permit melting of polymer of the edge of recess section 5. Molten polymer from tube 11 together with molten polymer from the edge of recess section 5 is forced by tip 10 into the region of bevelled section 6.
  • Sealing element 7 is then withdrawn from article 7 and, after a period of time sufficient to permit cooling of the molten polymer, rod 13 is withdrawn from tube 11; the period of time for the cooling will normally be very short because the relatively cool article 1 will act as a heat sink as soon as sealing element 7 is withdrawn, resulting in rapid solidification of the molten polymer. If an ultrasonic sound sealing element is used, the power applied is preferably reduced from an initial high value to a lower value as the sealing element enters the recessed section.
  • the surface of the recess section and/or the bevelled section is coated with an adhesive, to promote bonding of the tubing to the article.
  • an adhesive examples of an adhesive are given in European patent application No. 287 271 of A.J. Cesaroni, published 1988 October 19.
  • the tubes and article may be formed from a variety of polyamide compositions.
  • the composition selected will depend primarily on the end use e.g. the end use intended for a heat exchanger fabricated using the method described herein, especially the temperature of use and the environment of use, including the fluid that will be passed through such a heat exchanger and the fluid e.g. air, external to the heat exchanger.
  • the fluid may be air that at times contains salt or other corrosive or abrasive matter, or the fluid may be liquid e.g. radiator fluid.
  • a preferred polymer of construction is polyamide.
  • polyamides are the polyamides formed by the condensation polymerization of an aliphatic dicarboxylic acid having 6-12 carbon atoms with an aliphatic primary diamine having 6-12 carbon atoms.
  • the polyamide may be formed by condensation polymerization of an aliphatic lactam or alpha,omega aminocarboxylic acid having 6-12 carbon atoms.
  • the polyamide may be formed by copolymerization of mixtures of such dicarboxylic acids, diamines, lactams and aminocarboxylic acids.
  • dicarboxylic acids examples include 1,6-hexanedioic acid (adipic acid) , 1,7-heptanedioic acid (pimelic acid), 1,8-octanedioic acid (suberic acid), 1,9-nonanedioic acid (azelaic acid), 1,10-decanedioic acid (sebacic acid) and 1,12-dodecanedioic acid.
  • diamines examples include 1,6-hexamethylene diamine, 1,8-octamethylene diamine, 1,10-decamethylene diamine and 1,12-dodecamethylene diamine.
  • An example of a lactam is caprolacta .
  • alpha,omega aminocarboxylic acids are amino octanoic acid, a ino decanoic acid and amino dodecanoic acid.
  • Preferred examples of the polyamides are polyhexamethylene adipamide and polycaprolactam, which are also known as nylon 66 and nylon 6, respectively.
  • polyamides as the polymer used in the fabrication thereof, it is to be understood that other polymers may be used.
  • a principal consideration in the selection of the polymers of the article and the tubing is that the polymers need to be thermoplastic polymers, and preferably polymers that are compatible in the molten form. Compatible molten polymers will result in stronger bonds being formed to maintain the tubing bonded to the article, and hence retain integrity of the fluid tight seal of tubing and article.
  • the environment of use of articles fabricated using the method of the invention for example a heat exchanger and the properties of the fluid passing through and over such a heat exchanger, the temperature and pressure of use and the like, are important.
  • thermoplastic polymers examples include polyethylene, polypropylene, fluorocarbon polymers,, polyesters, thermoplastic and thermoset elastomers e.g. polyetherester elastomers, neoprene, chlorosulphonated polyethylene, and ethylene/- propylene/diene (EPDM) elastomers, polyvinyl chloride and polyurethane.
  • the tubing used in the fabrication of the panel heat exchanger has a thicknesses of less than 0.7 mm, and especially in the range of 0.07-0.50 mm, particularly 0.12-0.30 mm. The thickness of the tubing will, however, depend to a significant extent on the proposed end use and especially the properties required for that end.
  • the polymer compositions used in the fabrication of the heat exchangers may contain stabilizers, pigments, fillers, including glass fibres, and the like, as will be appreciated by those skilled n the art.
  • the polymer composition of the tubing and of the sheet may be the same or different, depending on the intended use of the fabricated articles. All seals should be fluid tight seals, especially in a heat exchanger, to prevent leakage of fluid from the heat exchanger.
  • the method of the present invention provides a versatile and relatively simple method of fabricating heat exchangers.
  • Heat exchangers may be used in a variety of end-uses, depending on the polymer(s) from which the heat exchanger has been fabricated and the intended environment of use of the heat exchanger.
  • the panel heat exchangers may be used in automotive end uses e.g. as part of the water and oil cooling systems.
  • the panel heat exchangers may also be used in less demanding end uses e.g. in refrigeration and in comfort heat exchangers.
  • Example I Tubes having an outer diameter (OD) of 4.3 mm and a wall thickness of 0.36 mm were formed from polyhexamethylene adipamide in an extrusion process.
  • the article used in this Example was in the form of a block of polyhexamethylene adipamide having a thickness, from the first side to the second side, of approximately 10-12 mm.
  • Holes (channels) having a diameter slightly greater than the OD of the tubing were drilled through the article from the first side to the second side; previous testing had shown that the tubing could have a "snug" fit within the holes or a relatively loose fit, without major effects of the process.
  • the channels exiting from the second side of the article were recessed and bevelled in the manner shown in the Figures, with the recess section being circular in cross-section and with a diameter slightly smaller than the sealing tool to be used.
  • Tubing was inserted into the holes in the article from the first side, so that the end of the tubing protruded beyond the recess section on the second side of the article for a short distance (a few millimetres) .
  • a metal rod was then inserted into the tubing from the first side, so that the end of the metal rod extended beyond the end of the tubing for a distance of about 3 mm.
  • the ultrasonic sealing device was used to seal the tubing into the article.
  • the ultrasonic sealing device had been fabricated in the laboratory.
  • the sealing device had a so-called exponential horn with the elongated tip having a recess extending back into the tip that was of dimensions to accommodate the metal rod; there was clearance between the metal rod and the walls of the recess.
  • the ultrasonic sealing device was capable of being used at 150 watts (low power) up to 250 watts (high power) , at the tip of the sealing device.
  • the ultrasonic sealing device was capable of being used at frequencies in the range of 9-100 kHz, and was tuned at 23 kHz.
  • the horn of the ultrasonic sealing device was placed over the metal rod and a high initial power was applied.
  • the horn of the sealing device was then moved towards the tubing and article, whereupon the tubing melted with the molten polymer being forced into the recess section; the power applied was reduced as the horn of the sealing device entered the recessed section.
  • the horn entered the recess section, it contacted and melted a thin section of polymer around the edge of the recess section; this polymer was also forced into the recess section.
  • the horn was inserted into the recess section for a distance that calculations had shown resulted in molten polymer filling the recess section and bevelled section in the article. The horn was then removed. The article allowed to cool and then the rod was removed.

Abstract

Un procédé permet de souder un tube de polymère thermoplastique (11) sur un élément de polymère thermoplastique (1) pour former un passage pour fluide au travers de ce dernier. L'élément comporte un canal reliant son premier à son deuxième côté et ressortant de ce deuxième côté en passant par des sections biseautée et évidée. Le procédé consiste à insérer le tube dans le canal depuis le premier côté de l'élément de façon qu'il ressorte par le deuxième côté et le dépasse, à insérer une tige métallique (13) dans ce tube (11) de façon qu'elle dépasse de ce dernier, du deuxième côté de l'élément et à mettre ce tube qui dépasse de l'élément en contact avec un dispositif d'obturation allongé (7) comportant dans son extrémité un évidement axial. Celui-ci est destiné à s'adapter sur la tige métallique par coulissement et le dispositif d'obturation présente un diamètre légèrement supérieur à celui de la section évidée de l'élément et il est capable de faire fondre les polymères du tube et de l'élément. On déplace le dispositif d'obturation vers le deuxème côté de l'élément, on fait fondre le polymère thermoplastique du tube et celui entourant la section évidée de l'élément et on pousse le polymère dans les sections évidée et biseautée de l'élément. Dans des variantes préférées, le dispositif d'obturation fonctionne par ultrasons et le tube et l'élément sont constitués de polyamide thermoplastique. On peut utiliser ce procédé pour fabriquer des échangeurs de chaleur en forme de panneaux.
PCT/CA1993/000545 1992-12-21 1993-12-16 Soudure de tubes sur des elements WO1994014598A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9226553.7 1992-12-21
GB9226553A GB2273459A (en) 1992-12-21 1992-12-21 Bonding tubes to articles e.g in making panel heat exchangers.

Publications (1)

Publication Number Publication Date
WO1994014598A1 true WO1994014598A1 (fr) 1994-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1993/000545 WO1994014598A1 (fr) 1992-12-21 1993-12-16 Soudure de tubes sur des elements

Country Status (2)

Country Link
GB (1) GB2273459A (fr)
WO (1) WO1994014598A1 (fr)

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AU728480B2 (en) * 1996-08-07 2001-01-11 Hospital For Sick Children, The Self-aligning peptides derived from elastin and other fibrous proteins
DE10328295A1 (de) * 2003-06-23 2005-01-27 Endress + Hauser Gmbh + Co. Kg Verfahren und entsprechende Vorrichtung zum Schweißen von Bauteilen eines Feldgerätes
JP2010500528A (ja) * 2006-08-11 2010-01-07 エルジー・ケム・リミテッド プラスチック熱交換器及びその製造方法
EP2380524B1 (fr) 2008-05-21 2017-06-21 Nexilis AG Procédé et dispositif destinés à l'amélioration des évidements
CN106895736A (zh) * 2016-12-30 2017-06-27 浙江赛迅环保科技有限公司 一种ptfe换热器的制造方法

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US6001291A (en) * 1996-02-07 1999-12-14 Cesaroni; Anthony Joseph Method of bonding tubes into an article
US6038768A (en) * 1998-06-09 2000-03-21 Fafco, Incorporated Method and apparatus for coupling panel boards and tubing to a header pipe
WO2003029744A2 (fr) * 2001-10-01 2003-04-10 Mykrolis Corporation Appareil d'echange
KR101230694B1 (ko) * 2003-12-22 2013-02-07 엔테그리스, 아이엔씨. 포팅된 중공 도관을 구비한 교환 장치
DE102005004372B4 (de) * 2005-01-31 2008-01-17 Wat-Membratec Gmbh & Co Kg Verfahren zum Verbinden poröser Membranen sowie hierdurch erzeugte Membranfiltervorrichtung
CN102744879B (zh) * 2012-07-20 2014-08-27 株洲宏大高分子材料有限公司 一种氟塑料换热器的薄壁微管的焊接方法及装置

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CH480908A (de) * 1967-08-08 1969-11-15 Lucas Industries Ltd Verfahren zum Befestigen eines Rohrs in einem Loch einer Platte mittels Ultraschallschweissung
DE2502181A1 (de) * 1975-01-21 1976-07-22 Becker Pruente Gmbh Verfahren zum verbinden von rohren aus thermoplastischem kunststoff mit plattenboeden aus thermoplastischem kunststoff
EP0140069A2 (fr) * 1983-10-20 1985-05-08 Akzo Patente GmbH Procédé pour joindre étanchement des extrémités de tuyau à des plaques tubulaires
EP0226825A2 (fr) * 1985-12-16 1987-07-01 Akzo N.V. Liaison d'un profilé creux avec une plaque en matière plastique, en particulier pour la fabrication d'échangeurs de chaleur
EP0299182A2 (fr) * 1987-07-15 1989-01-18 Akzo N.V. Procédé pour souder des extrémités de tuyaux à un plateau à tubes

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AU728480B2 (en) * 1996-08-07 2001-01-11 Hospital For Sick Children, The Self-aligning peptides derived from elastin and other fibrous proteins
DE10328295A1 (de) * 2003-06-23 2005-01-27 Endress + Hauser Gmbh + Co. Kg Verfahren und entsprechende Vorrichtung zum Schweißen von Bauteilen eines Feldgerätes
DE10328295B4 (de) * 2003-06-23 2007-11-22 Endress + Hauser Gmbh + Co. Kg Verfahren und entsprechende Vorrichtung zum Schweißen von Bauteilen eines Feldgerätes
JP2010500528A (ja) * 2006-08-11 2010-01-07 エルジー・ケム・リミテッド プラスチック熱交換器及びその製造方法
EP2380524B1 (fr) 2008-05-21 2017-06-21 Nexilis AG Procédé et dispositif destinés à l'amélioration des évidements
CN106895736A (zh) * 2016-12-30 2017-06-27 浙江赛迅环保科技有限公司 一种ptfe换热器的制造方法

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GB2273459A (en) 1994-06-22

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