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1. WO1997027418 - APPARATUS AND METHOD FOR FUSION JOINING A PIPE AND FITTINGS

Publication Number WO/1997/027418
Publication Date 31.07.1997
International Application No. PCT/IB1997/000052
International Filing Date 24.01.1997
Chapter 2 Demand Filed 12.08.1997
IPC
B29C 65/34 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining of preformed parts; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
B29C 65/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining of preformed parts; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
F16L 47/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
47Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
02Welded joints; Adhesive joints
CPC
B29C 65/3612
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3604characterised by the type of elements heated by induction which remain in the joint
3608comprising single particles, e.g. fillers or discontinuous fibre-reinforcements
3612comprising fillers
B29C 65/362
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3604characterised by the type of elements heated by induction which remain in the joint
362comprising at least a single wire, e.g. in the form of a winding
B29C 65/364
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3604characterised by the type of elements heated by induction which remain in the joint
364being a woven or non-woven fabric or being a mesh
B29C 65/3644
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3604characterised by the type of elements heated by induction which remain in the joint
3644being a ribbon, band or strip
B29C 65/3668
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3668characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special induction coils
B29C 65/368
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
34using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
36heated by induction
3672characterised by the composition of the elements heated by induction which remain in the joint
3676being metallic
368with a polymer coating
Applicants
  • UPONOR ALDYL COMPANY [US]/[US] (AllExceptUS)
  • SMITH, Cin, Lee [US]/[US] (UsOnly)
Inventors
  • SMITH, Cin, Lee
Priority Data
08/591,00424.01.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR FUSION JOINING A PIPE AND FITTINGS
(FR) PROCEDE ET DISPOSITIF D'ASSEMBLAGE PAR FUSION D'UN TUYAU ET DE RACCORDS
Abstract
(EN)
An apparatus and method for joining a pipe either directly to or with respect to a fitting (10) or another pipe (15). An induction heating element (20) is sandwiched between the external surface of a portion of one pipe and an internal surface of a fitting socket or flange, prior to fusion joining. Alternating current is induced through a conductive material of the induction heating element, resulting in softening or melting of preferably polyethylene material of the one pipe and the fitting. As a result of the softening or melting, the materials fuse together.
(FR)
L'invention concerne un appareil et un procédé permettant d'assembler un tuyau soit directement avec un raccord (10) ou un autre tuyau (15) ou de monter ledit tuyau par rapport audit raccord (10) ou à l'autre tuyau (15). Un élément de chauffage par induction (20) est pris en sandwich entre la surface extérieure d'une partie d'un tuyau et la surface intérieure d'un manchon ou d'un bourrelet de raccord, avant l'assemblage par fusion. Un courant alternatif est induit à travers le matériau conducteur de l'élément de chauffage par induction, ce qui entraîne le ramollissement ou la fusion du matériau du tuyau et du raccord, matériau qui est de préférence du polyéthylène. Ainsi, le matériau constituant le tuyau et le matériau constituant le raccord fusionnent.
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