GB2194915A - Induction welding of plastics components - Google Patents

Induction welding of plastics components Download PDF

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Publication number
GB2194915A
GB2194915A GB8716770A GB8716770A GB2194915A GB 2194915 A GB2194915 A GB 2194915A GB 8716770 A GB8716770 A GB 8716770A GB 8716770 A GB8716770 A GB 8716770A GB 2194915 A GB2194915 A GB 2194915A
Authority
GB
United Kingdom
Prior art keywords
component
components
spigot
socket
joint
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.)
Withdrawn
Application number
GB8716770A
Other versions
GB8716770D0 (en
Inventor
John Robert Feeney
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.)
Scott Health and Safety Ltd
Original Assignee
Protector Safety Ltd
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 Protector Safety Ltd filed Critical Protector Safety Ltd
Publication of GB8716770D0 publication Critical patent/GB8716770D0/en
Publication of GB2194915A publication Critical patent/GB2194915A/en
Withdrawn legal-status Critical Current

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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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/364—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a woven or non-woven fabric or being a mesh
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3034—Particular design of joint configurations the joint involving an anchoring effect making use of additional elements, e.g. meshes
    • 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle 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
    • 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52295—Joining tubular articles involving the use of a socket said socket comprising reinforcements
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • B29C65/3648—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip said strip being perforated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A method of joining a first thermoplastics component 1 with a tapering spigot 4 to a second component 2 with a socket 4' in which the spigot 4 locates comprises providing an inductively heatable openwork material 7 between the spigot and the socket, and then inductively heating this openwork material, e.g. by a coil 8. The inductive heating causes fusion of the thermoplastics material at the joint faces of the two components. The fused plastics enters the interstices of the openwork material, and, after solidification, provides a strong joint between the two components. <IMAGE>

Description

SPECIFICATION Induction welding of plastics components The present invention relates to the induction welding of plastics components.
Plastics components can be welded using a variety of methods. The most commonly used are ultrasonic welding and hot plate welding.
A less often used technique used for thermoplastics is induction welding. This make use of a suitable metal ring which is placed between the joint faces. The ring is inductively heated by an induction coil and becomes sufficiently hot to cause fusion of the plastic components.
Induction welding is commonly used to make a butt joint and for the is purpose the use of a round or other solid section metal ring is acceptable.
The use of induction welding for producing a shear joint is unusual as it is difficult to ensure a sound weld which gives an airtight joint.
It is therefore an object of the present invention to provide a method for the jointing of plastics components by induction welding which is suitable for use in producing a shear joint.
According to the present invention there is provided a method of joining together first and second components whereof the first component has a tapering thermoplastics spigot which is locatable with a complimentary thermoplastics socket of the second component, the method comprising inserting the spigot relatively into the socket with an inductively heatable openwork material between the spigot and the socket, inductively heating said material so as to fuse the plastics in the region of the material, and cooling the molten plastics to produce the joint.
The angle of taper of the spigot may for example be 1 to 50, more preferably 2 to 100.
Preferably the two components are pressed together during the jointing operation. This ensures that molten plastics flows through/across the openwork material so that, when this plastic has been solidified, a firm joint is produced.
The openwork material may, for example, be expanded metal, perforated metal or woven wire mesh. The material should have an open area of 10-90%, more preferably 30-60%.
For optimium results the metal should be susceptible to heat energy loss in both the applied electric and magnetic fields. For this a ferrous based alloy is suitable.
For applications when subsequent corrosion may be a problem a stainless steel may be used. While metals such as copper and aluminium can be used the efficiency is low.
For special applications a non-magnetic high resistance metal such as Nickel 80%, Chromium 20% can be used.
The invention will be further described by way of example only with reference to the accompanying drawings, in which: Figure 1 diagrammatically illustrates the method of the invention; and Figure 2 illustrates the completed joint.
As shown in Fig. 1, two thermoplastic components 1 and 2 of hollow circular form (e.g.
pipe, tube or cylindrical container) and the same wall thickness t are to be welded together by means of a shear joint. For this purpose the lower end of component 1 (as viewed in the drawing is formed with a shoulder 3, a downwardly tapering (e.g. 0.5 to 5 ) spigot with a frusto-conical face 4, and a lower annular face 5. The end face of component 1 is designated as 6. At its upper end (as viewed in Fig. 1) component 2 is formed on its inner surface with a downwardly tapering face 4' and an annular face 5'. The upper end face of component 2 is designated as 3'.
It will be appreciated that those parts of components 1 and 2 which are designated by like reference numerals are intended to form mating surfaces for the final joint although (for reasons explained more fully below) components 1 and 2 are not on exact mating fit.
The joint is produced with the aid of a ring 7 of expanded metal. The mesh size of the expanded metal is typically 0.2t but may be in the range 0.1 t to 0.5 t. This ring has a frustoconical body portion 7a and an annular flange 7b. As shown in Fig. 1, the ring 7 is located on component 2 such that the flange 7b seats on the end face 3' and the body 7a locates around the tapering face 4'.
As the lower end of component 1 is introduced into component 2 it is prevented from forming a mating joint due to the presence of ring 7. There is thus a small gapxbetween the shoulder 3 of component 1 and the end face 3' of component 2. Typically this gap will be in the range of 0.1 t to 0.5 t.
The assembly of components 1 and 2 and the ring 7 is then located in an induction coil 8 and a load is applied to compress component 1 and 2 together. Coil 8 serves to effect induction heating of ring 7. The heated ring 7 melts the thermoplastic on the surfaces of faces 3, 3', 4 and 4' as well as on shoulder.
The molten plastic is able to flow across /through the ring 7 and the compressive force causes the component 1 and 2 to mate exactly together. Upon cooling, the molten plastics solidifies resulting in a film joint in which the ring 7 is embedded (see Fig. 2).
As mentioned above, components 1 and 2 are not produced as an exact mating fit. More particularly those faces of component 1 or 2 which contact ring 7 are reduced in volume (as compared to the size required to produce a mating fit) by an amount equal to the volume of the metal in ring 7. This is to ensure that there is little or no excess molten plastic material produced in the joint between the components.
Any excess plastics forming a bend 9 around the joint may however be removed by conventional means.
The above described method is particularly suitable for the jointing of the body and closure member components of filter cartridges such as described in PCT/GB 86/00306.

Claims (5)

1. A method of jointing together first and second components whereof the first component has a tapering thermoplastics spigot which is locatable with a complimentary thermoplastics socket of the second component, the method comprising inserting the spigot relatively into the socket with an inductively heatable openwork material between the spigot and the socket, inductively heating said material so as to fuse the plastics in the region of the material, and cooling the molten plastics to produce the joint.
2. A method as claimed in claim 1, wherein the first component has a flange which butts against the end of the second component, and said openwork material is additionally provided between the flange and the end of the second component.
3. A method as claimed in claim 1 or 2, wherein the first and second components are pressed together during the joining operation.
4. A method as claimed in any one of claims 1 to 3, wherein the openwork material has an open area of 30 to 60%.
5. A method as claimed in any one of claim 1 to 4, wherein the openwork material is non-magnetic.
GB8716770A 1986-07-16 1987-07-16 Induction welding of plastics components Withdrawn GB2194915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8617311A GB8617311D0 (en) 1986-07-16 1986-07-16 Induction welding of plastics components

Publications (2)

Publication Number Publication Date
GB8716770D0 GB8716770D0 (en) 1987-08-19
GB2194915A true GB2194915A (en) 1988-03-23

Family

ID=10601127

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8617311A Pending GB8617311D0 (en) 1986-07-16 1986-07-16 Induction welding of plastics components
GB8716770A Withdrawn GB2194915A (en) 1986-07-16 1987-07-16 Induction welding of plastics components

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8617311A Pending GB8617311D0 (en) 1986-07-16 1986-07-16 Induction welding of plastics components

Country Status (3)

Country Link
AU (1) AU7574187A (en)
GB (2) GB8617311D0 (en)
NZ (1) NZ221092A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268439A (en) * 1992-07-02 1994-01-12 Fischer Georg Rohrleitung Welding double-walled plastics tubes
EP1705418A3 (en) * 2005-03-24 2006-11-22 Karl Schöngen KG, Kunststoff-Rohrsysteme Plastic pipe and method and apparatus for joining two plastic pipes
WO2007128384A2 (en) * 2006-05-05 2007-11-15 Bindring Sa Method and device for connectinc tubes made out of thermoplastic material
GB2447928A (en) * 2007-03-28 2008-10-01 Cypherco Ltd Porous, electrically conducting insert for joining
WO2019174843A1 (en) * 2018-03-15 2019-09-19 Robert Bosch Gmbh Connection arrangement and method for welding a first plastic component to a second plastic component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212844A (en) * 1966-11-25 1970-11-18 Kabi Ab Diagnostic means and method for immuno-electrophoretic assay of mammalian gamma globulins
GB1326292A (en) * 1970-05-21 1973-08-08 Tosi R Method for cementing together component parts of footwear and apparatus for carrying out said method
GB1505651A (en) * 1974-03-26 1978-03-30 Evode Ltd Bonding of gripper strip
EP0027306A1 (en) * 1979-08-24 1981-04-22 UNITED STATES GOVERNMENT, as represented by THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION Induction heating apparatus and method of securing two workpieces or sheets

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1212844A (en) * 1966-11-25 1970-11-18 Kabi Ab Diagnostic means and method for immuno-electrophoretic assay of mammalian gamma globulins
GB1326292A (en) * 1970-05-21 1973-08-08 Tosi R Method for cementing together component parts of footwear and apparatus for carrying out said method
GB1505651A (en) * 1974-03-26 1978-03-30 Evode Ltd Bonding of gripper strip
EP0027306A1 (en) * 1979-08-24 1981-04-22 UNITED STATES GOVERNMENT, as represented by THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION Induction heating apparatus and method of securing two workpieces or sheets

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2088722A2 (en) * 1992-07-02 1996-08-16 Fischer Georg Rohrleitung Method and apparatus for welding tubular parts
GB2268439B (en) * 1992-07-02 1997-02-05 Fischer Georg Rohrleitung Pipe-welding device and process
GB2268439A (en) * 1992-07-02 1994-01-12 Fischer Georg Rohrleitung Welding double-walled plastics tubes
EP1705418A3 (en) * 2005-03-24 2006-11-22 Karl Schöngen KG, Kunststoff-Rohrsysteme Plastic pipe and method and apparatus for joining two plastic pipes
JP2009536295A (en) * 2006-05-05 2009-10-08 アロイス・グルーバー・ゲーエムベーハー Method and apparatus for connecting pipes made of thermoplastic material
WO2007128384A2 (en) * 2006-05-05 2007-11-15 Bindring Sa Method and device for connectinc tubes made out of thermoplastic material
WO2007128384A3 (en) * 2006-05-05 2008-01-03 Bindring Sa Method and device for connectinc tubes made out of thermoplastic material
GB2447928A (en) * 2007-03-28 2008-10-01 Cypherco Ltd Porous, electrically conducting insert for joining
GB2447928B (en) * 2007-03-28 2012-04-11 Cypherco Ltd Thermoplastic components
WO2019174843A1 (en) * 2018-03-15 2019-09-19 Robert Bosch Gmbh Connection arrangement and method for welding a first plastic component to a second plastic component
CN111867816A (en) * 2018-03-15 2020-10-30 罗伯特·博世有限公司 Connecting assembly and method for welding together a first plastic part and a second plastic part
US11279093B2 (en) 2018-03-15 2022-03-22 Robert Bosch Gmbh Connection arrangement and method for welding a first plastic component to a second plastic component
CN111867816B (en) * 2018-03-15 2023-02-14 罗伯特·博世有限公司 Connecting assembly and method for welding together a first plastic part and a second plastic part

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NZ221092A (en) 1988-10-28
AU7574187A (en) 1988-01-21
GB8716770D0 (en) 1987-08-19
GB8617311D0 (en) 1986-08-20

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