BE452317A - - Google Patents
Info
- Publication number
- BE452317A BE452317A BE452317DA BE452317A BE 452317 A BE452317 A BE 452317A BE 452317D A BE452317D A BE 452317DA BE 452317 A BE452317 A BE 452317A
- Authority
- BE
- Belgium
- Prior art keywords
- parts
- electrical
- contact
- resistors
- resistances
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 21
- 229920001169 thermoplastic Polymers 0.000 claims description 17
- 239000004416 thermosoftening plastic Substances 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000000149 penetrating Effects 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 210000001847 Jaw Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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"
- B29C65/3404—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" characterised by the type of heated elements which remain in the joint
- B29C65/342—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
- B29C65/3432—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
-
- 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"
- B29C65/3404—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" characterised by the type of heated elements which remain in the joint
- B29C65/342—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
-
- 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"
- B29C65/3404—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" characterised by the type of heated elements which remain in the joint
- B29C65/342—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
- B29C65/3428—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" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding said at least a single wire having a waveform, e.g. a sinusoidal form
-
- 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"
- B29C65/3404—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" characterised by the type of heated elements which remain in the joint
- B29C65/344—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" characterised by the type of heated elements 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"
- B29C65/3404—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" characterised by the type of heated elements which remain in the joint
- B29C65/3444—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" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip
- B29C65/3448—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" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip said ribbon, band or strip being perforated
-
- 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"
- B29C65/3468—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" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
-
- 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
- B29C65/362—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 comprising at least a single wire, e.g. in the form of a winding
-
- 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
- B29C65/362—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 comprising at least a single wire, e.g. in the form of a winding
- B29C65/3628—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 comprising at least a single wire, e.g. in the form of a winding said at least a single wire having a waveform, e.g. a sinusoidal form
-
- 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
- B29C65/3604—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
-
- 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
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- 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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said 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
- 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
- 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
- B29C66/8324—Joining or pressing tools pivoting around one axis
- B29C66/83241—Joining or pressing tools pivoting around one axis cooperating pivoting 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
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/861—Hand-held tools
- B29C66/8614—Tongs, pincers or scissors
-
- 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"
- B29C65/3472—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" characterised by the composition of the heated elements which remain in the joint
- B29C65/3476—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" characterised by the composition of the heated elements 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
- 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
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
- B29C66/223—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a triangle wave or of a sawtooth wave, e.g. zigzagged
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
<Desc/Clms Page number 1>
"Proc'édé pour la soudure de pièces en matières thermoplastiques".
L'invention concerne un procédé original pour opérer la soudure entre toutes pièces en matières thermoplastiques et entre toutes pièces en matière thermoplastiques et toutes pièces en d'autres matières auxquelles les matières thermoplas- tiques peuvent fermement adhérer par simple fusion.
On sait que deux pièces en matières thermoplastiques peuvent être fermement solidarisées l'une à l'autre en soumettant les parties en contact à une élévation de température suffisante pour amener la matière dans un état de ramollissement suffisant.
Bans cet état, les parties en contact se soudent parfaitement l'une à l'autre et cette soudure se maintient parfaitement après refroidissement de la matière. Ce procédé simple en soi nécessite l'appoint d',une source calorifique qu'il est souhaitable de pou- @ voie localiser exactement au droit des parties,à souder. A l'heu-
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re actuelle, on ne connaît que l'appoint d'une source calorifique extérieure. Généralement, on presse les éléments à souder ontre deux pièces chauffantes, dont le but estd'élever la température de la matière jusqu'au point de ramollissement suffisant.
Ce procédé courant offre l'inconvénient de ramollir la masse d@ns toute son épaisseur. Cet inconvénient est d'autant plus grand que les pièces souder entre'elles sont de forme complexe ou de grandes dimensions. Pour de nombreuses fabrications, ce mode de soudure estpratiquement inemploysble.
L'invention a pour but de réaliser un procédé nouveau, extrêmement simple, économique et particulièrement ratiennel, étant donné qu'il permet de porter la source calorifique directe- ment a l'endroit de la soudure et cela par des moyens extrêmement simples et économiques.
Substantiellement, le procédé, objet de l'invention, consiste à interposer entre les surfaces en contact des pièces à Souder, une matière bonne conductrice d'électricité ou, plus généralement sncore, une matière capable de s'échauffer par le passage d'un courant électrique, cette matière faisant office de résis- tance électrique. En réglant judicieusement la masse de cette matiéreet l'intensité du courant électrique, on peut obtenir avec précision la température nécessaire au ramollissement des matières thermoplastiques.exactement au droitdes parties à souder.
La source calorifique interne ainsi créée, peut être réalisée sous des formes extrêmement différent@s etpeut être judicieusement adaptée aux genres de matières thermoplastiques, à la forme et aux dimensions des pièces a réaliser en ratières thermopla@tioues. On peut utiliser un élément métallique filiforme ou autre, s'interposant entre les deux éléments à souder et t'être saillie de part et d'autre, de manière à permettre leur connection à une source de courant électrique appropriée. Ou bien encore, on peut faire usage d'une mince toile métallique, d'un.treillis ou d'un élément ajouré de toute forme appropriée.
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Lorsque les connections peuvent se faire par pénétration de deux bornes dans la masse, on peut se dispenser de faire déborder l'élément chauffant. Dans certains cas, ce dernier pourrait éga- lement être réalisé par une matière poudreuse ou granuleuse re- couvrant partiellement les surfaces à solidariser.
Il résulte de ces différences consid.érations,que le procédé de soudure électrique des matières thermoplastiques,. @ conforme à l'invention, est d'application universelle, c'est-à- dire qu'il peut être appliqué à ,tous les genres de pièces ou d'articles généralement quelconques en mati¯ères thermoplastiques ou seulement partiellement en matières thermoplastiques.
A simple titre d'exemple, sans aucun caractère limi- tatif de l'invention, quelques modes d'exécution sont schématisés aux dessins annexés, dans lesquels : les figures 1, 2 et 3 représentent respectivement en coupe, en plan et en vue perspective,t l'exécution la plus simple,, qui consite à interposer entre les deux pièces à solidariser'l', 2 et, préférablement, dans le milieu, des surfaces en contact de ces deux pièces, un fil métallique 3, prévu ou agencé de manière à, former une résistance électrique.
Cette résistance est simplement connectée aux deux bornes d'un circuit électrique approprié et l'échauffement de la résistance est utilisé pour engendrer dans la masse thermoplastique, au droit des surfaces en contact, une température suffisante'pour "déterminer le ramol- lissement et, par conséquent, la soudure intime .des masses en con- tact. On peut éventuellement favoriser cette soudure en introdui- sant un effort de pression tendant à appliquer lès piéces l'une contre l'autre, par exemple, dans la figure 1, selon' les flèches ff'.
On peut évidemment'disposer et profiler la résistance électrique, 'de manières infiniment différentes.
La figure 4 représente un même élément filiforme 3, replié en forme de U, en sorte que ses deux bouts 4, 5 devant
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être connectés à la source de courant électrique, sont dirigé. d'un mené côté des pièces à souder.
La figure 5 schématise en plan une exécution réalisant une variante de la figure précédente, mais plus particulièrement destinée à couvrir une plus grande surface de contact. A cet effet, la résistance filiforme 3 est disposée en zig-zag trans- versalement, en sorte que ses deux bouts 4, et 5, tout comme dans l'exemple précédent, se trouvent dirigés d'un même côté des pièces à assembler 1, 2. '
La figure 6 schématise également une exécution dans laquelle la résistance est disposée en zig-zag, mais en sens contraire à l'exemple précédent. Dans cette exécution, les deux bouts 4, 5 sont disposés respectivement de part et d'autre des pièces à souder.
On pourrait évidemment profiler et disposer-la résis- tance électrique sous toute autre forme simple ou complexe, suivant notamment l'étendue des surfaces de contact, la nature de la matière thermoplastique et les résultats que l'on désire atteindre.
La figure 7 schématise en vue perspective une exécution dans laquelle on a utilisé comme réstance électrique, une fine toile métallique 6 recouvrant presque totalement les surfaces en contact. Dans cette figure, la partie correspondante de l'une des pièces 2 estrelevée dans le but de mieux distinguer la dis- position relative des différents éléments. A l'effet de facili- \ ter la connection de la résistance électrique 6 à la source de courant électrique appropriée, on a prévu deux,bouts de fil 7, 8, qui pourront éventuellement être sectionnes après l'opération de soudure. Ou bien, ces bouts de fil pourront éventuellement servir à fixer un plomb de garantie, ou à. toute autre fin accessoire.
On peut éviter l'usage de tels 'bouts de fil 7, 8 débordant les pièces soudées. Il suffit en effet de réaliser la connection électrique de la résistance à la source de courant en utilisant des bornes pénétrantes, capables donc de traverser l'une des
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deux couches de matière thermoplastique et d'atteindre ainsi la résistance électrique ou l'élément intermédiaire qui en fait fonction, Les trous formés par les bornes pénétrantes seront généralement automatiquement obstrués. En effet, ces bornes, elles-mêmes et plus particulièrement leur.pointe sera également chauffée en sorte que la matière thermoplastique entourant les deux bornes, sera fortement ramollie et sera généralement capable de combler le vide produit par le retrait des bornes pénétrantes.
La figure 8 schématise une telle exécution, dans la- quelle les bornes pénétrantes 9, 10 sont solidaires d'un support commun en'matière isolante 11, capable d'être relié à une source de courant électrique et d'être déplacé'en sorte de pouvoir permettre aux dites bornes 9, 10 de traverser l'élément supérieur 1, afin d'atteindre la résistance électrique 6. Dans certaines exécutions, le support commun 11 des bornes pénétrantes 9,10 pour- rait être utilisé pour solliciter les piéces à souder l, 2, par un effort de pression pouvant favoriser la soudure.
La figure 9 schématise en vue perspective une exécution .pratique sous la forme d'une pince 12 présentant deux manches iso- lés 13 14, l'une des:mâchoires 15 formant un support pour des pièces à assembler 1, l'autre mâchoire 16 formant un support commun pour les deux bornes pénétrantes 9, 10.-Celles-ci traver- sent la mâchoire 16 et se prolongent par des fiches 17, 18 per- mettant l'application directe d'une prise de courant femelle 19.
Par ce moyen, on peut donc opérer des soudures de pièces de dimensions réduites très rapidement et d'une manière indus- trielle. L'écartement entre les deux mâchoires 15, 16 combinées à la longueur des bornes pénétrantes 9, 10, peut être tel que les deux mâchoires pressent fermement les parties à souder pendant l'opération de soudure.
On peut également réaliser le chauffage des résistances par induction, ce qui rendrait superflu.,l'usage'de connections électriques ou de bornes pénétrantes.
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La figure 10 schématise très sommairement une telle exécution dans laquelle on a interposé entre les pièces à souder 1, 2, une résistance électrique 3, aménagée en sorte qu'elle puisse être assimilée au deuxième enroulement d'un système à induction dont l'enroulement primaire 20 estdisposé dans un support 21, qui peut également presser les pièces pendant l'opération de soudure. Cet enroulement primaire 20 est relié à une source de courant alternatif suivant les principes bien connue.
Comme on le voit donc, on peut réaliser le procédé, objet de l'invention, de manières extrêmement différentes, tant par le choix du moyen de chauffage interne, que par la forme et la disposition des éléments chauffants.
La figure 11 schématise en vue perspective un fragment délément chauffant constitué par une pièce métallique ajourée 22 pouvant se présenter sous la forme de plaques, de' rubans ou de tout autre profil approprié.
On peut aussi, évidemment, appliquer le procédé de l'invention pour la soudure de pièces en nombres pratiquement quelconques. Il suffit d'interposer entre les surfaces en contact des éléments chauffants appropriés.
La figure 12 schématise quatre pièces superposées 23, 24, 25, 26, entre lesquelles on introduit trois groupes de résistances ou d'éléments chauffants appropriés, respectivement 27, 28, 29.. Comme on le constate'. on peut ainsi réaliser les soudures les plus complexes avec la même facilité.
REVENDICATIONS.
1.- Procédé pour la soudure de pièces en matières thermoplastiques, caractérisé en ce au'il consiste à interposer entre les pièces en contact à solidariser, au moins un élément chauffant en sorte que la température nécessaire au ramollissement des pièces à. souder soit directement portée sur les surfaces en contact.
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"Process for welding parts in thermoplastic materials".
The invention relates to an original method for carrying out the welding between all parts made of thermoplastics and between all parts of thermoplastics and all parts of other materials to which the thermoplastic materials can firmly adhere by simple fusion.
It is known that two parts of thermoplastic materials can be firmly secured to one another by subjecting the parts in contact to a rise in temperature sufficient to bring the material into a sufficient softening state.
In this state, the parts in contact are welded perfectly to each other and this weld is maintained perfectly after cooling of the material. This process, which is simple in itself, requires the addition of a heat source which it is desirable to be able to locate exactly in line with the parts to be welded. At the hour
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re current, we know only the addition of an external heat source. Generally, the elements to be welded are pressed against two heating parts, the purpose of which is to raise the temperature of the material to the point of sufficient softening.
This current process has the drawback of softening the mass throughout its thickness. This drawback is all the greater as the parts to be welded between them are of complex shape or of large dimensions. For many fabrications, this method of welding is practically unusable.
The object of the invention is to achieve a new method, extremely simple, economical and particularly rational, given that it allows the heat source to be brought directly to the place of the weld and this by extremely simple and economical means. .
Substantially, the method, object of the invention, consists in interposing between the contacting surfaces of the parts to be welded, a material which is a good conductor of electricity or, more generally sncore, a material capable of being heated by the passage of a electric current, this material acting as an electrical resistance. By judiciously adjusting the mass of this material and the intensity of the electric current, the temperature necessary for the softening of the thermoplastic materials can be obtained with precision, exactly at the level of the parts to be welded.
The internal heat source thus created can be produced in extremely different shapes and can be judiciously adapted to the types of thermoplastic materials, to the shape and to the dimensions of the parts to be produced in thermoplastic dobbies. It is possible to use a wire-like metal element or the like, interposing between the two elements to be welded and protruding from either side, so as to allow their connection to a suitable source of electric current. Or alternatively, use may be made of a thin wire mesh, a mesh or an openwork element of any suitable shape.
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When the connections can be made by penetrating two terminals in the mass, one can dispense with overflowing the heating element. In certain cases, the latter could also be produced by a powdery or granular material partially covering the surfaces to be joined.
It follows from these differences considerations, that the method of electric welding of thermoplastic materials ,. @ according to the invention, is universally applicable, that is to say that it can be applied to all types of parts or articles generally any in thermoplastic materials or only partially in thermoplastic materials .
By way of example, without any limiting nature of the invention, some embodiments are shown diagrammatically in the appended drawings, in which: FIGS. 1, 2 and 3 represent respectively in section, in plan and in perspective view , t the simplest execution ,, which consists in interposing between the two parts to be joined together 'l', 2 and, preferably, in the middle of the surfaces in contact of these two parts, a metal wire 3, provided or arranged so as to form an electrical resistance.
This resistor is simply connected to the two terminals of a suitable electrical circuit and the heating of the resistor is used to generate in the thermoplastic mass, at the level of the surfaces in contact, a temperature sufficient to "determine the softening and, consequently, the intimate welding of the masses in contact. This welding can optionally be promoted by introducing a pressure force tending to apply the parts against each other, for example, in FIG. 1, according to 'arrows ff'.
We can obviously 'arrange and profile the electrical resistance,' in infinitely different ways.
Figure 4 shows the same threadlike element 3, folded in the shape of a U, so that its two ends 4, 5 in front
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be connected to the source of electric current, are directed. on one side of the parts to be welded.
FIG. 5 is a diagrammatic plan of an embodiment realizing a variant of the previous figure, but more particularly intended to cover a larger contact surface. For this purpose, the filiform resistor 3 is arranged in a transverse zig-zag, so that its two ends 4, and 5, as in the previous example, are directed to the same side of the parts to be assembled 1 , 2. '
FIG. 6 also shows schematically an execution in which the resistance is arranged in a zig-zag, but in the opposite direction to the previous example. In this embodiment, the two ends 4, 5 are arranged respectively on either side of the parts to be welded.
The electrical resistance could obviously be profiled and disposed in any other simple or complex form, depending in particular on the extent of the contact surfaces, the nature of the thermoplastic material and the results which it is desired to achieve.
FIG. 7 is a diagrammatic perspective view of an embodiment in which a thin wire mesh 6 was used as an electrical resistor, almost completely covering the surfaces in contact. In this figure, the corresponding part of one of the parts 2 is raised in order to better distinguish the relative arrangement of the different elements. In order to facilitate the connection of the electric resistance 6 to the appropriate source of electric current, two pieces of wire 7, 8 have been provided, which may optionally be severed after the welding operation. Or, these ends of wire could possibly be used to fix a lead of guarantee, or to. any other incidental purpose.
The use of such wire ends 7, 8 extending beyond the welded parts can be avoided. It suffices to make the electrical connection of the resistor to the current source by using penetrating terminals, therefore capable of crossing one of the
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two layers of thermoplastic material and thus reach the electrical resistance or the intermediate element which makes it function. The holes formed by the penetrating terminals will generally be automatically blocked. Indeed, these terminals, themselves and more particularly their.pointe will also be heated so that the thermoplastic material surrounding the two terminals will be strongly softened and will generally be able to fill the void produced by the withdrawal of the penetrating terminals.
Figure 8 shows schematically such an embodiment, in which the penetrating terminals 9, 10 are integral with a common support of insulating material 11, capable of being connected to a source of electric current and of being moved in such a way. to be able to allow said terminals 9, 10 to pass through the upper element 1, in order to reach the electrical resistance 6. In certain executions, the common support 11 of the penetrating terminals 9,10 could be used to stress the parts to weld l, 2, by a pressure force which can promote welding.
FIG. 9 is a diagrammatic perspective view of a practical execution in the form of a clamp 12 having two insulated handles 13 14, one of the jaws 15 forming a support for the parts to be assembled 1, the other jaw 16 forming a common support for the two penetrating terminals 9, 10. These cross the jaw 16 and are extended by plugs 17, 18 allowing the direct application of a female socket 19.
By this means, it is therefore possible to weld parts of reduced dimensions very quickly and in an industrial manner. The spacing between the two jaws 15, 16 combined with the length of the penetrating terminals 9, 10, can be such that the two jaws firmly press the parts to be welded during the welding operation.
It is also possible to heat the resistors by induction, which would make the use of electrical connections or penetrating terminals superfluous.
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FIG. 10 very briefly shows such an embodiment in which an electrical resistance 3 has been interposed between the parts to be welded 1, 2, arranged so that it can be assimilated to the second winding of an induction system, the winding of which The primary 20 is disposed in a holder 21, which can also press the parts during the welding operation. This primary winding 20 is connected to an alternating current source according to well known principles.
As can therefore be seen, the method, which is the subject of the invention, can be carried out in extremely different ways, both by the choice of the internal heating means, and by the shape and arrangement of the heating elements.
FIG. 11 is a diagrammatic perspective view of a heating element fragment constituted by a perforated metal part 22 which may be in the form of plates, ribbons or any other suitable profile.
It is also, of course, possible to apply the method of the invention for the welding of parts of practically any number. It suffices to place appropriate heating elements between the surfaces in contact.
Figure 12 shows schematically four superimposed pieces 23, 24, 25, 26, between which are introduced three groups of resistors or appropriate heating elements, respectively 27, 28, 29 .. As can be seen '. the most complex welds can thus be made with the same ease.
CLAIMS.
1.- A method for welding parts of thermoplastic materials, characterized in that au'il consists in interposing between the parts in contact to be joined, at least one heating element so that the temperature necessary for the softening of the parts. weld is directly placed on the contact surfaces.
Claims (1)
Publications (1)
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BE452317A true BE452317A (en) |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0281347A2 (en) * | 1987-03-02 | 1988-09-07 | The Welding Institute | Bonding thermoplastic layers |
WO1996039326A1 (en) * | 1995-06-06 | 1996-12-12 | The Boeing Company | Resistance welding of thermoplastics in aerospace structure |
-
0
- BE BE452317D patent/BE452317A/fr unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0281347A2 (en) * | 1987-03-02 | 1988-09-07 | The Welding Institute | Bonding thermoplastic layers |
EP0281347A3 (en) * | 1987-03-02 | 1989-10-18 | The Welding Institute | Bonding thermoplastic layers |
WO1996039326A1 (en) * | 1995-06-06 | 1996-12-12 | The Boeing Company | Resistance welding of thermoplastics in aerospace structure |
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