WO2003076840A1 - Device for connecting a component to a body - Google Patents

Device for connecting a component to a body Download PDF

Info

Publication number
WO2003076840A1
WO2003076840A1 PCT/EP2003/002479 EP0302479W WO03076840A1 WO 2003076840 A1 WO2003076840 A1 WO 2003076840A1 EP 0302479 W EP0302479 W EP 0302479W WO 03076840 A1 WO03076840 A1 WO 03076840A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
mat
sealing
connection
vacuum
Prior art date
Application number
PCT/EP2003/002479
Other languages
German (de)
French (fr)
Inventor
Fabian Maier
Original Assignee
Friatec Aktiengesellschaft
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 Friatec Aktiengesellschaft filed Critical Friatec Aktiengesellschaft
Priority to DE20320645U priority Critical patent/DE20320645U1/en
Priority to AU2003214114A priority patent/AU2003214114A1/en
Publication of WO2003076840A1 publication Critical patent/WO2003076840A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/08—Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of the wall or to the axis of another pipe
    • F16L41/082—Non-disconnectible joints, e.g. soldered, adhesive or caulked joints
    • F16L41/084—Soldered 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
    • 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"
    • B29C65/3472—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
    • 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
    • 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
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • 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
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • 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
    • B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • 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
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53241—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles
    • B29C66/53242—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles said single elements being spouts, e.g. joining spouts to tubes
    • B29C66/53243—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being tubular and said substantially annular single elements being of finite length relative to the infinite length of said tubular articles said single elements being spouts, e.g. joining spouts to tubes said spouts comprising flanges
    • 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
    • B29C66/55—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 sealing elements being incorporated into the joints, e.g. gaskets
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • B29C65/346—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 coating or being printed, e.g. being applied as a paint or forming a printed circuit
    • 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"
    • B29C65/3472—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
    • B29C65/3484—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 non-metallic
    • B29C65/3488—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 non-metallic being an electrically conductive polymer
    • 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
    • B29C65/3484—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 non-metallic
    • B29C65/3492—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 non-metallic being carbon
    • 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
    • B29C65/364—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
    • 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
    • B29C65/3684—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 non-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
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • 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

Definitions

  • the invention relates to a device according to the features specified in the preamble of claim 1.
  • JP 10 061 862 A such a device for producing a connection of a component designed as a fitting is known, which contains a saddle piece and a nozzle, with a body designed as a tube.
  • the fitting is fixed to the pipe using a pipe clamp and then the saddle piece of the fitting is tightly and permanently connected to the outer surface of the pipe by means of electric welding.
  • the fitting and the pipe are made of thermoplastic, weldable plastic, such as in particular polyethylene, the fitting and in particular the saddle piece containing a heating coil for producing an electrical welded connection between the fitting and the pipe.
  • a drill axially movably arranged in the nozzle of the fitting, the Wall of the tube introduced an opening.
  • an assembly device for connecting a fitting, which contains a saddle piece and a socket, to a pipe.
  • the device contains a first part and a fastening element connected to it, which is designed in particular as a band and encompasses said tube at least in the region of its underside.
  • the device also contains a second part designed as a piston, which is arranged movably with respect to the first part, and by means of which the fitting can be fixed on the outside of the tube.
  • a chamber which can be pressurized to move the piston with pressure medium, the fitting or its saddle piece being pressed onto the pipe in order to apply the electric or weld connection between the saddle piece of the fitting and to be able to manufacture the pipe.
  • This device also requires considerable manufacturing and assembly work and difficult handling, especially for pipes with comparatively large outside diameters.
  • the object of the invention is to further develop the device of the type mentioned in such a way that, with a compact and simple construction, a functionally reliable placement and / or connection of the component on or with the body can be produced without problems.
  • the device is intended to enable functional and problem-free handling.
  • the device should have a small overall volume and a low weight, the placement and / or fixation of the component and the production of, in particular, the welded connection to the body being ensured without complex measures.
  • the device according to the invention is characterized by a functionally appropriate construction and enables the component to be adjusted and / or fixed in a simple manner with respect to the body and to produce the welded connection of the component, in particular as a fitting, on the body, which is in particular designed as a tube.
  • the component is fixed with respect to the body by generating a vacuum, the vacuum being advantageously maintained during the production of the welded connection between the component and the body.
  • a component is provided, which is preferably designed as a flexible mat, which completely engages over the component and lies with its edge region in a sealing manner on the outer surface of the component, which is designed, for example, as a tube.
  • the component designed as a mat which is also referred to below as a vacuum mat
  • the component for example a fitting with a saddle and heating element, or other devices, such as drilling tools or holding devices, on the body.
  • No elaborate holding devices are required, such as clamps, belts, etc., which require an exposed or freely accessible body.
  • the mat and / or vacuum mat only requires a corresponding, arbitrarily shaped free space in order to be able to adjust the component securely.
  • the component to be adjusted and / or welded is placed on the corresponding position of the body and covered by means of the mat or vacuum mat.
  • This mat is preferably provided on the underside with holding elements, such as holding knobs or a special coating, and it is thus possible to position the component in any position and position by means of the mat itself.
  • a vacuum is applied to the mat such that a vacuum and / or vacuum is generated between the mat and the component to be adjusted and the body due to the structure of the mat. This vacuum in connection with the contact surface and the strength of the mat result in an even contact pressure.
  • the mat can be designed as a compact vacuum mat, which is placed over the entire component to be adjusted or is placed over it.
  • a contacting cable integrated with the mat is advantageously provided, with a tight connection to the mat being present and receiving points and / or contact elements for a known welding device being guided to the outside.
  • the mat can be designed as a slotted mat or vacuum mat, for example to wise to press a fitting with a relatively high dome or tapping tools to the body.
  • the mat is designed to be relatively elastic and can therefore be placed around the component and / or the fitting and / or a dome and saddle in such a way that ends of the mat which are open at the edges, in particular, are placed one above the other or interlaced, so that they are more complex
  • the outer contours of the component to be able to build up the vacuum.
  • outlets and / or vacancies can be closed by additional, possibly smaller mats or plugs.
  • the component can contain two or more such mats, which are suitably placed over the component and the body in order to obtain a complete and outwardly tight coverage of both the component and a subsequent surface area of the body.
  • the component can also be designed as or contain at least one sealing element or a sealing ring which surrounds the welding zone and / or the heating element associated therewith in such a way that an interior space sealed to the outside is present, in which a negative pressure can be generated.
  • the fitting is designed as a sleeve, in which one end of the body designed as a tube can be inserted and which contains the heating element in the region of its inner surface, two such components designed as sealing rings are provided at the end and at the beginning of the annular welding zone.
  • this sleeve which can also be referred to as a vacuum sleeve
  • the sealing elements or sealing rings mentioned are in sealing contact with the outer surface of the pipe and the annular welding gap or the annular welding zone are sealed to the outside, so that there is a negative pressure or Vacuum can be created.
  • connection elements for a vacuum or vacuum generator are also provided, which open into the gap mentioned.
  • the negative pressure or vacuum preferably support the jointing of the sleeve and pipe during welding, with any gases and / or water vapor that may be formed being removed in a particularly advantageous manner. Additional testing and monitoring options can also be provided.
  • the device according to the invention enables simple adjustment and positioning of the component on any surface of the body.
  • the adjustment of the contact pressure can easily be carried out by enlarging the suction surface and / or the interior created by means of the component, for example two of the mats mentioned.
  • a constant contact pressure of the component on the body is reliably ensured over the entire surface.
  • a constant joining pressure is guaranteed during the entire welding time, particularly in the case of heating coil welding, preheating being able to be carried out in a particularly expedient manner.
  • a small amount of space is required according to the invention, wherein in particular reaching around the body designed as a tube is not necessary.
  • the heating element expediently consists of wire and / or it is designed as a winding.
  • the heating element or the electrical conductor (s) can be applied to the surface of the fitting or the component to be welded and in particular can be vapor-deposited from electrically conductive material or can be designed as a metal grid or as electrically conductive carbon fibers or from electrically conductive plastic or polymers ,
  • the welding energy can be supplied by means of the heating element by electrical resistance heating as well as by using induction or microwave technology.
  • the body can be designed as a container with any external contour, with which a component in the form of a connecting piece is to be connected on the outside, or as a flat or corrugated plate with which a pipe leadthrough or a fastening flange is to be connected.
  • the component and / or the component contain a connection, via which a connection to a vacuum pump, which can also be referred to as a vacuum pump, is established.
  • the negative pressure in the interior is maintained during any preheating, during welding and during the subsequent cooling phase.
  • FIG. 1 shows schematic views of the device with a fitting having a saddle piece, the component being designed as a preferably flexible mat
  • the fitting is designed as a sleeve for producing a connection with a pipe end, the inner space sealed to the outside being formed by sealing the annular gap between the sleeve and the pipe by means of two components designed as sealing rings ,
  • FIG. 1 to 4 show in schematic and perspective representations a body 2 in the form of a tube and a component 4 in the form of a fitting which contains a saddle piece 6 and a nozzle 8.
  • the saddle piece 6 is curved in accordance with the curved outer surface of the tube or body 2 and rests on the outer surface 10 thereof.
  • a component 12 is provided, which is provided as a flexible mat with a connection or connecting hose 14, via which the connection to a vacuum source 16, in particular a vacuum pump, takes place.
  • the mat 12 which is also referred to as a vacuum mat, consists of an airtight and / or vacuumtight material, in particular a plastic film, so that after it is placed over the component and a region 17 of the outer surface 10 of the body 2 surrounding it, under the interior covered with the mat 12 in this way a vacuum or vacuum can be generated.
  • the saddle piece 6 has two contact elements 18, 19 which are designed as plug sockets.
  • the mat 12 contains two connecting cables 22, 23 with corresponding plugs 24, 25 in the area of its inner surface 20.
  • the underside or inner surface 20 of the mat 12 is provided with suitable adhesive elements, such as holding knobs or a special coating or adhesive coating provided, which enables the positioning of the component 4 in the desired position on the body 2 by means of the mat 12.
  • the connecting cables 22, 23 are led through the mat 12 by means of suitable sealed bushings 26, 27. 2, the plugs mentioned are coupled to the plug sockets 18, 19, and an electrical connection is thus made to a heating element which is arranged in the region of the inner surface of the saddle piece 6.
  • the flexible dense mat 12 is placed over the fitting 4.
  • the mat 12 has such external dimensions that the mat 12 completely engages over the saddle piece 6 and rests with the outer edge 28 on the outer surface 10 of the tube 2.
  • the mat 12 expediently consists of a transparent material, so that the exact position of the fitting 4 on the outer surface 10 of the tube 2 can be checked.
  • the fitting 4 can thus be easily positioned and / or adjusted on the pipe 2. Since the mat 12 is advantageously provided on its underside or inner surface 20 with holding elements, such as holding knobs or a special coating, in particular adhesive coating, the positioning of the component or the fitting 4 is in the desired position and position by means of the mat 12 even possible without any problems.
  • the vacuum source 16 is connected to the connection or the connecting line 14, by means of which a vacuum is produced in the interior or intermediate space between the mat 12 and the fitting 4 and the pipe 2.
  • a vacuum is produced in the interior or intermediate space between the mat 12 and the fitting 4 and the pipe 2.
  • an electric welding device 30 is connected to the contact elements 18, 19 by means of the electrical cables 22, 23.
  • the bushings 26, 27 in the area of the outer surface of the mat 12 can be designed as contact elements or plug sockets for connecting separate electrical cables for connection to the welding device 30.
  • the vacuum generated by means of the vacuum source 16 or vacuum pump is maintained during the welding carried out by means of the welding device 28. A constant joining pressure can be guaranteed during the entire welding time.
  • the vacuum is also generated and / or maintained during preheating, with gases and / or vapors being removed in a particularly advantageous manner, in particular as a result of moisture or water, by means of the vacuum source 16 become.
  • the negative pressure is also maintained during the cooling time. After the welding has ended, the vacuum source 16 is switched off, and the mat 12 is now easily removed from the pipe 2 and the fitting 4 welded onto it.
  • FIG. 5 to 13 show a second embodiment with the component 4 designed as a fitting, containing the saddle piece 6 and the connecting piece 8 and with the component 32, which is designed as a sealing bell, a sealing element 34 also being provided according to FIG. 8 ,
  • the sealing bell 32 is assigned to the socket 8 and is designed such that its outlet or upper opening 36 can be closed in an airtight manner.
  • the sealing bell 32 contains an integrated vacuum adapter or connection 38 for the vacuum source already mentioned.
  • the saddle piece 6 contains a vacuum adapter or connection 39, which according to detail A of FIG. 5 is shown enlarged in FIG. 6.
  • the sealing element 34 is arranged, which is designed as a circumferential seal. In the area between the heating element 42 and the sealing element 34, the passage 46 of the mentioned connection or vacuum adapter opens.
  • FIG. 9 shows detail B according to FIG. 8 on an enlarged scale, and here a relatively large mounting gap 48 between the outer surface 10 and the inner surface 40 of the saddle piece 6 can be clearly seen.
  • the assembly gap 48 can be relatively large and, as a result of the large gap ratios, unevenness and / or slats can be overcome easily and reliably, thereby ensuring a drastic simplification of the assembly.
  • the sealing element 34 is partially arranged in an equally circumferential annular groove 50 in the inner surface 40 and conveniently fixed and / or fastened.
  • the sealing element 34 completely surrounds the heating zone specified by the heating element 42.
  • the connection to the sealing bell 32 is established via a connecting line 52 with the aforementioned vacuum source, by means of which a negative pressure and / or vacuum is generated in the interior 54 sealed off by means of the sealing bell 32 and the sealing element 34.
  • the component 4 is consequently pressed onto the outer surface 10 of the tube 2, with the result that, according to FIG. 11, which shows the detail C according to FIG. 10 on an enlarged scale, only a minimal joining gap 56 is left between the outer surface 10 and the inner surface 40 is available. This ensures optimal welding conditions during the energy supply of the heating element 42.
  • preheating can be carried out in a particularly expedient manner before the welding, with a power or energy supply reduced compared to the nominal welding power, with any gases or water vapor from the welding zone using the vacuum source be sucked off.
  • FIG. 12 schematically shows the fitting 4 placed on the outer surface 10 of the tube 2, to which the vacuum source 16 and the welding device 30 are connected in the manner explained above. Since the inner vacuum region or the vacuum surface is separated in an outer region from an inner region by the welding zone during the welding process, two connections or vacuum adapters are preferably present, namely the connection 38 of the sealing bell 32 and also the connection 39 of the saddle piece 6, these two connections 38, 39 being connected to the vacuum source 16 via suitable connecting lines.
  • the electrical connection of the welding device 30 to the heating element in the region of the inner surface of the saddle piece 6 is established by means of the cables 22, 23.
  • FIG. 13 shows a section in a radial plane through the tube 2 and the component 4, the saddle piece 6 of which is welded tightly and firmly to the tube 2 after the welding has ended.
  • FIGS. 14 to 20 A special embodiment of the invention is shown in FIGS. 14 to 20.
  • the component is designed as a sleeve 60, which is shown only partially for the sake of simplicity and contains an essentially cylindrical inner surface 62 with a heating element 64.
  • the heating element 64 is designed in a known manner as a heating coil and defines the welding zone.
  • a component 66, 67 is arranged at the end and at the beginning of the welding zone specified by the heating element 64, which, after inserting a pipe, not shown here, into the sleeve 60, seals off the annular space or interior space present between the outer pipe surface and the inner surface 62.
  • the sealing elements 66, 67 are expediently designed as sealing rings or O-rings, which are partially arranged in ring grooves 68, 69 of the inner surface 62. In the area between the sealing elements 66, 67, a connection 70 opens, via which the connection to the vacuum source can be established.
  • the sleeve 60 also has a reinforcement 71 on its outer surface, which is designed in particular as a wire winding. Such reinforcement is particularly useful in sleeves for pipes with comparatively large outer diameters in order to ensure high strength and stability with the lowest possible overall weight and to maintain the required welding or joining pressure during welding.
  • FIG. 15 shows an enlarged detail D according to FIG. 14 with a contact pin 72, to which the wire end of the heating element 64 is connected and with which the connection to the welding device can be established via a suitable plug or the like.
  • the contact pin 72 is hollow on the inside or contains an inner cavity 74 which is carried out up to the inner surface of the sleeve.
  • the vacuum or vacuum can be generated in the said annular gap or interior.
  • a separate connection for the vacuum source can be provided independently of the contact pin.
  • FIG. 16 shows a section similar to FIG. 14, the end of a tube 2 being shown partially in the sleeve 60.
  • the end of the tube 2 is completely inserted into the sleeve 60 in such a way that the two annular sealing elements or sealing rings 66, 67 bear sealingly on the outer surface 10 of the tube 2.
  • a welding plug or contact element 78 with integrated vacuum extraction is inserted into the connection 70.
  • This welding plug 78 is preferably designed both for electrical contacting and power supply to the heating element 64 and for connection to the vacuum source. As indicated in FIG.
  • Fig. 20 shows the pipe 2 and the sleeve 60 during the welding.
  • the outer surface of the pipe 2 and the inner surface of the sleeve 60 are in direct, tight contact and welded.
  • fire protection can be achieved by monitoring the exhaust air with smoke sensors.
  • a leak test with vacuum and / or compressed air, in particular via connection 70, can be carried out in a particularly advantageous manner.
  • a void-free welding is carried out on account of the negative pressure specified according to the invention in the area of the welding zone. Furthermore, the welding can also be carried out in the vicinity of the welding zone in the event of moisture and / or water, since water vapor which arises as a result of the negative pressure when heated, in particular during preheating, is evacuated immediately.

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

Abstract

The invention relates to a device for connecting a component (4) to a body (2), whereby said component (4) contains in particular a heating element (42) and can be fixed in relation to the body (2). The aim of the invention is to improve the device by providing it with a compact and simple construction, enabling the component (4) to be positioned on and/or connected to the body (2) without problems in a functionally reliable manner. This is achieved by a part (12) that is to be located on the component (4) and/or placed to rest on the body (2) in a sealing manner, in such a way that an inner chamber, sealed to the exterior, is formed between the part (12) and the component (4) and body (2). In addition, the component (4) or the part (12) has a connection (14) to a negative pressure source (16), which is used to create a negative pressure in the aforementioned inner chamber.

Description

Vorrichtung zum Verbinden eines Bauteils mit einem Körper Device for connecting a component to a body
Die Erfindung bezieht sich auf eine Vorrichtung gemäß der im Oberbegriff des Patentanspruchs 1 angegebenen Merkmale.The invention relates to a device according to the features specified in the preamble of claim 1.
Aus der Japanischen Patentanmeldung gemäß JP 10 061 862 A ist eine derartige Vorrichtung zur Herstellung einer Verbindung eines als Armatur ausgebildeten Bauteils bekannt, welches ein Sattelstück und einen Stutzen enthält, mit einem als Rohr ausgebildeten Körper. Die Armatur wird mittels einer Rohrschelle auf dem Rohr fixiert und nachfolgend wird durch Elektroschweißen das Sattelstück der Armatur mit der Außenfläche des Rohres dicht und dauerhaft verbunden. Die Armatur und das Rohr bestehen aus thermoplastischem, schweißbarem Kunststoff, wie insbesondere Polyäthylen, wobei die Armatur und insbesondere deren Sattelstück eine Heizwicklung zur Herstellung einer Elektroschweißverbindung zwischen der Armatur und dem Rohr enthält. Nachfolgend wird mittels eines im Stutzen der Armatur axial bewegbar angeordneten Bohrers in die Wandung des Rohres eine Öffnung eingebracht. Für kleinere und mittlere Rohraußendurchmesser bis ca. 400 mm ist eine derartige Vorrichtung in der Praxis mit einem vertretbaren Aufwand einsetzbar. Hingegen wird für größere Rohraußendurchmesser im Hinblick auf die erforderliche Größe der Vorrichtung deren Handhabung erheblich erschwert, wenn nicht gar unter Berücksichtigung der praktischen Einsatzbedingungen, beispielsweise im Graben einer verlegten Rohrleitung, unmöglich. Ferner erfordert eine an der Unterseite des Rohre anzuordnende Rohr- oder Unterschelle der Vorrichtung einen zusätzlichen Fertigungs- und Montageaufwand.From the Japanese patent application according to JP 10 061 862 A, such a device for producing a connection of a component designed as a fitting is known, which contains a saddle piece and a nozzle, with a body designed as a tube. The fitting is fixed to the pipe using a pipe clamp and then the saddle piece of the fitting is tightly and permanently connected to the outer surface of the pipe by means of electric welding. The fitting and the pipe are made of thermoplastic, weldable plastic, such as in particular polyethylene, the fitting and in particular the saddle piece containing a heating coil for producing an electrical welded connection between the fitting and the pipe. Subsequently, by means of a drill axially movably arranged in the nozzle of the fitting, the Wall of the tube introduced an opening. For smaller and medium pipe outside diameters of up to approx. 400 mm, such a device can be used in practice with reasonable effort. On the other hand, for larger pipe outer diameters, the handling is made considerably more difficult with regard to the required size of the device, if not taking into account the practical conditions of use, for example in the trench of a pipeline laid. Furthermore, a pipe or lower clamp of the device to be arranged on the underside of the pipe requires additional manufacturing and assembly effort.
Ferner ist aus der DE 195 29 191 C 1 eine Montagevorrichtung bekannt, um eine Armatur, welche ein Sattelstück und einen Stutzen enthält, mit einem Rohr zu verbinden. Die Vorrichtung enthält einen ersten Teil und ein mit diesem verbundenes Befestigungselement, welche insbesondere als Band ausgebildet ist und das genannte Rohr zumindest im Bereich dessen Unterseite umgreift. Die Vorrichtung enthält ferner einen zweiten als Kolben ausgebildeten Teil, welcher bezüglich des ersten Teils bewegbar angeordnet ist, und mittels welchem die Armatur auf der Außenseite des Rohres fixierbar ist. Zwischen den genannten Teilen ist eine Kammer vorhanden, welche zur Bewegung des Kolbens mit Druckmittel beaufschlagbar ist, wobei die Armatur bzw. deren Sattelstück auf das Rohr gepresst wird, um durch Beaufschlagung eines Heizelementes mit Strom bzw. Spannung die Elektroschweißverbindung zwischen dem Sattelstück der Armatur und dem Rohr herstellen zu können. Auch diese Vorrichtung erfordert einen erheblichen Fertigungs- und Montageaufwand und eine schwierige Handhabung, vor allem bei Rohren mit vergleichsweise großen Außendurchmessern.Furthermore, an assembly device is known from DE 195 29 191 C 1 for connecting a fitting, which contains a saddle piece and a socket, to a pipe. The device contains a first part and a fastening element connected to it, which is designed in particular as a band and encompasses said tube at least in the region of its underside. The device also contains a second part designed as a piston, which is arranged movably with respect to the first part, and by means of which the fitting can be fixed on the outside of the tube. Between the parts mentioned there is a chamber which can be pressurized to move the piston with pressure medium, the fitting or its saddle piece being pressed onto the pipe in order to apply the electric or weld connection between the saddle piece of the fitting and to be able to manufacture the pipe. This device also requires considerable manufacturing and assembly work and difficult handling, especially for pipes with comparatively large outside diameters.
Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, die Vorrichtung der genannten Art dahingehend weiterzubilden, dass bei kompakter und einfacher Bauweise eine funktionssichere Platzierung und/oder Verbindung des Bauteils auf bzw. mit dem Körper problemlos herstellbar ist. Die Vorrichtung soll eine funktionsgerechte und problemlose Handhabung ermöglichen. Ferner soll die Vorrichtung ein geringes Bauvolumen und ein geringes Gewicht aufweisen, wobei ohne aufwändige Maßnahmen die Platzierung und/oder Fixierung des Bauteils und die Herstellung insbesondere der Schweißverbindung mit dem Körper sichergestellt werden soll.Proceeding from this, the object of the invention is to further develop the device of the type mentioned in such a way that, with a compact and simple construction, a functionally reliable placement and / or connection of the component on or with the body can be produced without problems. The device is intended to enable functional and problem-free handling. Furthermore, the device should have a small overall volume and a low weight, the placement and / or fixation of the component and the production of, in particular, the welded connection to the body being ensured without complex measures.
Die Lösung dieser Aufgabe erfolgt gemäß der im Patentanspruch 1 angegebenen Merkmale. Die erfindungsgemäße Vorrichtung zeichnet sich durch eine funktionsgerechte Konstruktion aus und ermöglicht in einfacher Weise die Justierung und/oder Fixierung des Bauteils bezüglich des Körpers sowie die Herstellung der Schweißverbindung des insbesondere als Armatur ausgebildeten Bauteils auf dem Körper, welcher insbesondere als ein Rohr ausgebildet ist. Durch Erzeugung eines Unterdrucks wird das Bauteil bezüglich des Körpers fixiert, wobei der Unterdruck in vorteilhafter Weise während der Herstellung der Schweißverbindung zwischen dem Bauteil und dem Körper aufrecht erhalten wird. Hierzu ist ein Bauelement vorgesehen, welches bevorzugt als eine flexible Matte ausgebildet ist, welche das Bauteil vollständig übergreift und mit ihrem Randbereich dichtend auf der Außenfläche des beispielsweise als Rohr ausgebildeten Bauteils aufliegt. Mittels des als eine Matte ausgebildeten Bauelements, welches nachfolgend auch als Vakuummatte bezeichnet wird, besteht die Möglichkeit, das Bauteil, beispielsweise eine Armatur mit Sattel und Heizelement oder andere Vorrichtungen, wie Bohrwerkzeuge oder Haltevorrichtungen auf dem Körper zu plazieren. Es sind keine aufwendigen Haltevorrichtungen erforderlich wie Halteschellen, Gurte usw., welche einen freiliegenden bzw. frei zugänglichen Körper voraussetzen. Die Matte und/oder Vakuummatte benötigt nur einen entsprechenden, beliebig geformten Freiraum, um das Bauteils sicher justieren zu können. Das zu justierende und/oder zu verschweißende Bauteil wird auf die entsprechende Position des Körpers aufgelegt und mittels der Matte bzw. Vakuummatte abgedeckt. Diese Matte ist in bevorzugter Weise auf der Unterseite mit Halteelementen, wie Haltenoppen oder einer speziellen Beschichtung, versehen, und es ist somit die Positionierung des Bauteils in jeglicher Position und Lage mittels der Matte selbst möglich. Nach der Positionierung wird ein Unterdruck derart an die Matte angelegt, dass aufgrund des Aufbaus der Matte zwischen dieser und dem zu justierenden Bauteil sowie dem Körper ein Unterdruck und/oder Vakuum erzeugt wird. Dieses Vakuum in Verbindung mit der Auflagefläche und der Festigkeit der Matte ergeben einen gleichmäßigen Anpressdruck.This object is achieved according to the features specified in claim 1. The device according to the invention is characterized by a functionally appropriate construction and enables the component to be adjusted and / or fixed in a simple manner with respect to the body and to produce the welded connection of the component, in particular as a fitting, on the body, which is in particular designed as a tube. The component is fixed with respect to the body by generating a vacuum, the vacuum being advantageously maintained during the production of the welded connection between the component and the body. For this purpose, a component is provided, which is preferably designed as a flexible mat, which completely engages over the component and lies with its edge region in a sealing manner on the outer surface of the component, which is designed, for example, as a tube. By means of the component designed as a mat, which is also referred to below as a vacuum mat, it is possible to place the component, for example a fitting with a saddle and heating element, or other devices, such as drilling tools or holding devices, on the body. No elaborate holding devices are required, such as clamps, belts, etc., which require an exposed or freely accessible body. The mat and / or vacuum mat only requires a corresponding, arbitrarily shaped free space in order to be able to adjust the component securely. The component to be adjusted and / or welded is placed on the corresponding position of the body and covered by means of the mat or vacuum mat. This mat is preferably provided on the underside with holding elements, such as holding knobs or a special coating, and it is thus possible to position the component in any position and position by means of the mat itself. After positioning, a vacuum is applied to the mat such that a vacuum and / or vacuum is generated between the mat and the component to be adjusted and the body due to the structure of the mat. This vacuum in connection with the contact surface and the strength of the mat result in an even contact pressure.
Die Matte kann als eine kompakte Vakuummatte ausgebildet sein, welche sich über das gesamte zu justierende Bauteil legt bzw. über dieses gelegt wird. Im Falle einer Verschweißung des Bauteils mit dem Körper mittels eines Heizelements ist in vorteilhafter Weise ein mit der Matte integriertes Kontaktierungskabel vorgesehen, wobei eine dichte Verbindung mit der Matte vorhanden ist und nach außen geführten Aufnahmestellen und/oder Kontaktelemente für ein bekanntes Schweißgerät vorhanden sind. Ferner kann die Matte als eine geschlitzte Matte bzw. Vakuummatte ausgebildet sein, um beispiels- weise eine Armatur mit einem relativ hohen Dom oder Anbohrgeräte an den Körper zu pressen. Die Matte ist relativ elastisch ausgebildet und kann somit um das Bauteil und/oder die Armatur und/oder einen Dom und Sattel derart gelegt werden, dass insbesondere zu den Rändern offene Enden der Matte übereinander gelegt bzw. verschränkt angeordnet werden, um somit auch bei komplexeren Außenkonturen des Bauteils das Vakuum aufbauen zu können. Des Weiteren können Abgänge und/oder offene Stellen durch zusätzliche, ggf. kleinere Matten oder Stopfen verschlossen werden. Ferner kann im Rahmen der Erfindung das Bauelement zwei oder mehrere derartige Matten enthalten, welche in geeigneter Weise über das Bauteil sowie den Körper gelegt werden, um eine vollständige und nach außen dichte Überdeckung sowohl des Bauteils als auch eines anschließenden Flächenbereiches des Körpers zu erhalten.The mat can be designed as a compact vacuum mat, which is placed over the entire component to be adjusted or is placed over it. In the case of a welding of the component to the body by means of a heating element, a contacting cable integrated with the mat is advantageously provided, with a tight connection to the mat being present and receiving points and / or contact elements for a known welding device being guided to the outside. Furthermore, the mat can be designed as a slotted mat or vacuum mat, for example to wise to press a fitting with a relatively high dome or tapping tools to the body. The mat is designed to be relatively elastic and can therefore be placed around the component and / or the fitting and / or a dome and saddle in such a way that ends of the mat which are open at the edges, in particular, are placed one above the other or interlaced, so that they are more complex The outer contours of the component to be able to build up the vacuum. In addition, outlets and / or vacancies can be closed by additional, possibly smaller mats or plugs. Furthermore, in the context of the invention, the component can contain two or more such mats, which are suitably placed over the component and the body in order to obtain a complete and outwardly tight coverage of both the component and a subsequent surface area of the body.
Das Bauelement kann ferner als wenigstens ein Dichtelement oder ein Dichtring ausgebildet sein oder einen solchen enthalten, welcher die Schweißzone und / oder das dieser zugeordnete Heizelement derart umgibt, dass ein nach außen abgedichteter Innenraum vorhanden ist, in welchem ein Unterdruck erzeugbar ist. Bei Ausbildung der Armatur als eine Muffe, in welcher ein Ende des als Rohr ausgebildeten Körpers einschiebbar ist und welche im Bereich ihrer Innenfläche das Heizelement enthält, sind am Ende und am Anfang der ringförmigen Schweißzone zwei derartige als Dichtringe ausgebildete Bauelemente vorgesehen. Wird in diese Muffe, welche auch als Vakuummuffe bezeichnet werden kann, das Rohr eingeschoben, so liegen die genannten Dichtelemente bzw. Dichtringe an der Rohraußenfläche dichtend an und der ringförmige Schweißspalt bzw. die ringförmige Schweißzone sind nach außen abgedichtet, so dass dort ein Unterdruck bzw. Vakuum erzeugt werden kann. In zweckmäßiger Weise sind ferner Anschlusselemente für einen Unterdruck- bzw. Vakuumerzeuger vorgesehen, welche in den genannten Spalt münden. Der Unterdruck bzw. das Vakuum unterstützen in bevorzugter Weise das Zusammenwachsen von Muffe und Rohr während des Schweißens, wobei eventuell entstehende Gase und/oder Wasserdampf in besonders vorteilhafter Weise entfernt werden. Des weiteren können zusätzliche Prüf- und Überwachungsmöglichkeiten vorgesehen werden.The component can also be designed as or contain at least one sealing element or a sealing ring which surrounds the welding zone and / or the heating element associated therewith in such a way that an interior space sealed to the outside is present, in which a negative pressure can be generated. When the fitting is designed as a sleeve, in which one end of the body designed as a tube can be inserted and which contains the heating element in the region of its inner surface, two such components designed as sealing rings are provided at the end and at the beginning of the annular welding zone. If the pipe is inserted into this sleeve, which can also be referred to as a vacuum sleeve, the sealing elements or sealing rings mentioned are in sealing contact with the outer surface of the pipe and the annular welding gap or the annular welding zone are sealed to the outside, so that there is a negative pressure or Vacuum can be created. In an expedient manner, connection elements for a vacuum or vacuum generator are also provided, which open into the gap mentioned. The negative pressure or vacuum preferably support the jointing of the sleeve and pipe during welding, with any gases and / or water vapor that may be formed being removed in a particularly advantageous manner. Additional testing and monitoring options can also be provided.
Die erfindungsgemäße Vorrichtung ermöglicht eine einfache Justierung und Positionierung des Bauteils auf einer beliebigen Fläche des Körpers. Die Anpassung der Anpresskraft kann ohne weiteres durch Vergrößerung der Saugfläche, und/oder des mittels des Bauelements geschaffenen Innenraumes durchgeführt werden, wozu beispielsweise zwei der genannten Matten vorgesehen werden. Darüber hinaus wird zuverlässig über die gesamte Fläche ein konstanter Anpressdruck des Bauteils auf den Körper sichergestellt. Somit wird insbesondere beim Heizwendelschweißen ein konstanter Fügedruck während der gesamten Schweißzeit gewährleistet, wobei in besonders zweckmäßiger Weise eine Vorwärmung durchführbar ist. Gegenüber herkömmlichen Vorrichtungen und Aufspannsystemen des Bauteils auf dem Körper ist erfindungsgemäß ein geringer Platzbedarf erforderlich, wobei insbesondere ein Umgreifen des als Rohr ausgebildeten Körpers nicht nötig ist.The device according to the invention enables simple adjustment and positioning of the component on any surface of the body. The adjustment of the contact pressure can easily be carried out by enlarging the suction surface and / or the interior created by means of the component, for example two of the mats mentioned. In addition, a constant contact pressure of the component on the body is reliably ensured over the entire surface. Thus, a constant joining pressure is guaranteed during the entire welding time, particularly in the case of heating coil welding, preheating being able to be carried out in a particularly expedient manner. Compared to conventional devices and clamping systems of the component on the body, a small amount of space is required according to the invention, wherein in particular reaching around the body designed as a tube is not necessary.
Das Heizelement besteht in zweckmäßiger Weise aus Draht, und / oder es ist als eine Wicklung ausgebildet. Des weiteren kann das Heizelement bzw. können der oder die elektrischen Leiter auf der zu verschweißenden Oberfläche der Armatur oder des Bauteils aufgebracht sein und insbesondere aus elektrisch leitfähigem Material aufgedampft sein oder als Metallgitter oder als elektrisch leitende Kohlenstofffasern oder aus elektrisch leitfähigem Kunststoff oder Polymeren ausgebildet sein. Die Zuführung der Schweißenergie mittels des Heizelements kann durch elektrische Widerstandsheizung ebenso erfolgen wie durch Anwendung der Induktions- oder Mikrowellentechnologie. Unabhängig von der jeweiligen Ausbildung und der konkreten Ausgestaltung des Bauteils und/oder der Armatur und/oder des Heizelements und/oder des Bauelements kommt es im Rahmen der Erfindung entscheidend darauf an, dass mittels des oder der Bauelemente und der Abdichtung eines insbesondere der Schweißzone zugeordneten Innenraums ein Unterdruck herstellbar ist bzw. hergestellt wird zur Fixierung der Armatur bezüglich des Bauteils und Aufrechterhaltung des Fügedrucks während der Durchführung des Schweißvorganges. Der Körper, mit welchem das Bauteil zu verbinden ist, kann gleichermaßen als Rohr oder als ein Hohlkörper oder Flächenkörper ausgebildet sein. So kann der Körper beispielsweise als ein Behälter mit beliebiger Außenkontur ausgebildet sein, mit welchem außen beispielsweise ein Bauteil in Form eines Anschlussstutzens zu verbinden ist, oder als eine ebene oder gewellte Platte ausgebildet sein, mit welcher eine Rohrdurchführung oder ein Befestigungsflansch zu verbinden ist. Zur Erzeugung des Unterdrucks in dem abgedichteten Innenraum enthalten das Bauelement und/oder das Bauteil einen Anschluss, über welchen eine Verbindung mit einer Unterdruckpumpe, welche auch als Vakuumpumpe bezeichnet werden kann, hergestellt wird. Der Unterdruck im Innenraum wird während einer gegebenenfalls durchgeführten Vorwärmung, während der Verschweißung und während der nachfolgenden Abkühlphase aufrecht erhalten. Besondere Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen sowie der nachfolgenden Beschreibung angegeben.The heating element expediently consists of wire and / or it is designed as a winding. Furthermore, the heating element or the electrical conductor (s) can be applied to the surface of the fitting or the component to be welded and in particular can be vapor-deposited from electrically conductive material or can be designed as a metal grid or as electrically conductive carbon fibers or from electrically conductive plastic or polymers , The welding energy can be supplied by means of the heating element by electrical resistance heating as well as by using induction or microwave technology. Regardless of the particular design and the specific configuration of the component and / or the fitting and / or the heating element and / or the component, it is of crucial importance in the context of the invention that by means of the component or components and the sealing one in particular the welding zone An underpressure can be produced or is produced in the interior to fix the valve with respect to the component and to maintain the joining pressure while the welding process is being carried out. The body with which the component is to be connected can equally be designed as a tube or as a hollow body or sheet. For example, the body can be designed as a container with any external contour, with which a component in the form of a connecting piece is to be connected on the outside, or as a flat or corrugated plate with which a pipe leadthrough or a fastening flange is to be connected. To generate the vacuum in the sealed interior, the component and / or the component contain a connection, via which a connection to a vacuum pump, which can also be referred to as a vacuum pump, is established. The negative pressure in the interior is maintained during any preheating, during welding and during the subsequent cooling phase. Particular refinements and developments of the invention are specified in the subclaims and in the description below.
Die Erfindung wird nachfolgend an Hand der in der Zeichnung dargestellten besonderen Ausführungsbeispiele näher erläutert, ohne dass insoweit eine Beschränkung erfolgt. Es zeigen:The invention is explained in more detail below on the basis of the special exemplary embodiments illustrated in the drawing, without there being any limitation in this regard. Show it:
Fig. 1 schematische Ansichten der Vorrichtung mit einer ein Sattelstück aufweisenden Armatur, wobei das Bauelement als eine bevorzugt flexible Matte ausgebildet ist,1 shows schematic views of the device with a fitting having a saddle piece, the component being designed as a preferably flexible mat,
Fig. 5 bis 13 eine zweite Ausführungsform, wobei die ein Sattelstück aufweisende Armatur mittels einer Dichtglocke und eines Dichtelements auf der Außenfläche eines Rohres mittels Unterdruck angepresst wird,5 to 13 a second embodiment, wherein the fitting having a saddle is pressed by means of a sealing bell and a sealing element on the outer surface of a pipe by means of negative pressure,
Fig. 14 bis 20 eine weitere Ausführungsform, gemäß welcher die Armatur als eine Muffe zur Herstellung einer Verbindung mit einem Rohrende ausgebildet ist, wobei durch Abdichtung des Ringspaltes zwischen der Muffe und dem Rohr mittels zweier als Dichtringe ausgebildeter Bauelemente der nach außen abgedichtete Innenraum gebildet ist.14 to 20 a further embodiment, according to which the fitting is designed as a sleeve for producing a connection with a pipe end, the inner space sealed to the outside being formed by sealing the annular gap between the sleeve and the pipe by means of two components designed as sealing rings ,
Fig. 1 bis 4 zeigen in schematischen und perspektivischen Darstellungen einen als Rohr ausgebildetes Körper 2 und ein Bauteil 4 in Form einer Armatur, welche ein Sattelstück 6 und einen Stutzen 8 enthält. Das Sattelstück 6 ist entsprechend der gekrümmten Außenfläche des Rohres bzw. des Körpers 2 gekrümmt und liegt außen auf dessen Außenfläche 10 auf. Ferner ist ein Bauelement 12 vorgesehen, welches als eine flexible Matte mit einem Anschluss oder Anschlussschlauch 14 versehen ist, über welchen die Verbindung an eine Unterdruckquelle 16, insbesondere eine Vakuumpumpe, erfolgt. Die auch als Vakuummatte bezeichnete Matte 12 besteht aus einem luftdichten und/oder vakuumdichten Werkstoff, insbesondere einer Kunststofffolie, so dass nach deren Auflegen über das Bauteil und einen dieses umgebenden Bereich 17 der Außenfläche 10 des Körpers 2 unter dem derart mit der Matte 12 überdeckten Innenraum ein Unterdruck bzw. Vakuum erzeugbar ist. Das Sattelstück 6 besitzt zwei Kontaktelemente 18, 19, welche als Steckerbuchsen ausgebildet sind. Wie aus Fig. 1 ersichtlich, enthält die Matte 12 im Bereich ihrer Innenfläche 20 zwei Anschlusskabel 22, 23 mit entsprechenden Steckern 24, 25. Die Unterseite oder Innenfläche 20 der Matte 12 ist mit geeigneten Haftelementen, wie Haltenoppen oder einer speziellen Beschichtung bzw. Haftbeschichtung versehen, welche die Positionierung des Bauteils 4 in der gewünschten Position oder Lage auf dem Körper 2 mittels der Matte 12 ermöglicht. Die Anschlusskabel 22, 23 sind mittels geeigneter dichter Durchführungen 26, 27 durch die Matte 12 durchgeführt. Gemäß Fig. 2 sind die genannten Stecker mit den Steckerbuchsen 18, 19 gekoppelt, und es ist somit eine elektrische Verbindung zu einem Heizelement hergestellt, welches im Bereich der Innenfläche des Sattelstücks 6 angeordnet ist.1 to 4 show in schematic and perspective representations a body 2 in the form of a tube and a component 4 in the form of a fitting which contains a saddle piece 6 and a nozzle 8. The saddle piece 6 is curved in accordance with the curved outer surface of the tube or body 2 and rests on the outer surface 10 thereof. Furthermore, a component 12 is provided, which is provided as a flexible mat with a connection or connecting hose 14, via which the connection to a vacuum source 16, in particular a vacuum pump, takes place. The mat 12, which is also referred to as a vacuum mat, consists of an airtight and / or vacuumtight material, in particular a plastic film, so that after it is placed over the component and a region 17 of the outer surface 10 of the body 2 surrounding it, under the interior covered with the mat 12 in this way a vacuum or vacuum can be generated. The saddle piece 6 has two contact elements 18, 19 which are designed as plug sockets. As can be seen from FIG. 1, the mat 12 contains two connecting cables 22, 23 with corresponding plugs 24, 25 in the area of its inner surface 20. The underside or inner surface 20 of the mat 12 is provided with suitable adhesive elements, such as holding knobs or a special coating or adhesive coating provided, which enables the positioning of the component 4 in the desired position on the body 2 by means of the mat 12. The connecting cables 22, 23 are led through the mat 12 by means of suitable sealed bushings 26, 27. 2, the plugs mentioned are coupled to the plug sockets 18, 19, and an electrical connection is thus made to a heating element which is arranged in the region of the inner surface of the saddle piece 6.
Gemäß Fig. 3 ist die flexible dichte Matte 12 über die Armatur 4 gelegt. Die Matte 12 besitzt im Vergleich mit der Armatur 4 und insbesondere deren Sattelstück 6 derartige Außenabmessungen, dass die Matte 12 das Sattelstück 6 vollständig übergreift und mit dem Außenrand 28 auf der Außenfläche 10 des Rohres 2 aufliegt. Die Matte 12 besteht in zweckmäßiger weise aus einem transparenten Material, so dass die exakte Position der Armatur 4 auf der Außenfläche 10 des Rohres 2 überprüfbar ist. Die Armatur 4 kann somit problemlos auf dem Rohr 2 positioniert und / oder justiert werden. Da die Matte 12 auf ihrer Unterseite bzw. Innenfläche 20 in vorteilhafter Weise mit Halteelementen, wie Haltenoppen oder einer speziellen Beschichtung, insbesondere Haftbeschichtung, versehen ist, ist die Positionierung des Bauteils bzw. der Armatur 4 in der gewünschten Position und Lage mittels der Matte 12 selbst problemlos möglich.3, the flexible dense mat 12 is placed over the fitting 4. In comparison with the fitting 4 and in particular the saddle piece 6 thereof, the mat 12 has such external dimensions that the mat 12 completely engages over the saddle piece 6 and rests with the outer edge 28 on the outer surface 10 of the tube 2. The mat 12 expediently consists of a transparent material, so that the exact position of the fitting 4 on the outer surface 10 of the tube 2 can be checked. The fitting 4 can thus be easily positioned and / or adjusted on the pipe 2. Since the mat 12 is advantageously provided on its underside or inner surface 20 with holding elements, such as holding knobs or a special coating, in particular adhesive coating, the positioning of the component or the fitting 4 is in the desired position and position by means of the mat 12 even possible without any problems.
Wie aus Fig. 4 ersichtlich, ist an den Anschluss bzw. die Anschlussleitung 14 die Unterdruckquelle 16 angeschlossen, mittels welcher ein Unterdruck in den Innenraum oder Zwischenraum zwischen der Matte 12 und der Armatur 4 sowie dem Rohr 2 hergestellt wird. Hierdurch wird die Armatur im wesentlichen in radialer Richtung auf die Außenfläche 10 des Rohres 2 angepresst. Weiterhin ist ein Elektroschweißgerät 30 mittels der elektrischen Kabel 22, 23 an die Kontaktelemente 18, 19 angeschlossen. Alternativ können die Durchführungen 26, 27 im Bereich der Außenfläche der Matte 12 als Kontaktelemente oder Steckerbuchsen zum Anschluss separater elektrischer Kabel zur Verbindung mit dem Schweißgerät 30 ausgebildet sein. Erfindungsgemäß wird während der mittels des Schweißgerätes 28 durchgeführten Verschweißung der mittels der Unterdruckquelle 16 bzw. Vakuumpumpe erzeugte Unterdruck aufrecht erhalten. Während der gesamten Schweißzeit kann somit ein konstanter Fügedruck gewährleistet werden. Es sei hier ausdrücklich festgehalten, dass im Rahmen der Erfindung ferner während einer Vorwärmung der Unterdruck erzeugt und/oder aufrecht erhalten wird, wobei in besonders vorteilhafter Weise Gase und/oder Dämpfe, insbesondere in Folge von Feuchtigkeit oder Wasser, mittels der Unterdruckquelle 16, entfernt werden. Erfindungsgemäß wird ferner während der Abkühlzeit der Unterdruck aufrecht erhalten. Nach Beendigung der Verschweißung wird die Unterdruckquelle 16 abgeschaltet, und die Matte 12 wird nunmehr problemlos von dem Rohr 2 und der auf dieses aufgeschweißten Armatur 4 entfernt. Diese Maßnahmen gelten analog auch bei den nachfolgend erläuterten Ausführungsformen.As can be seen from FIG. 4, the vacuum source 16 is connected to the connection or the connecting line 14, by means of which a vacuum is produced in the interior or intermediate space between the mat 12 and the fitting 4 and the pipe 2. As a result, the fitting is pressed onto the outer surface 10 of the tube 2 essentially in the radial direction. Furthermore, an electric welding device 30 is connected to the contact elements 18, 19 by means of the electrical cables 22, 23. Alternatively, the bushings 26, 27 in the area of the outer surface of the mat 12 can be designed as contact elements or plug sockets for connecting separate electrical cables for connection to the welding device 30. According to the invention, the vacuum generated by means of the vacuum source 16 or vacuum pump is maintained during the welding carried out by means of the welding device 28. A constant joining pressure can be guaranteed during the entire welding time. It should be expressly stated here that, in the context of the invention, the vacuum is also generated and / or maintained during preheating, with gases and / or vapors being removed in a particularly advantageous manner, in particular as a result of moisture or water, by means of the vacuum source 16 become. According to the invention, the negative pressure is also maintained during the cooling time. After the welding has ended, the vacuum source 16 is switched off, and the mat 12 is now easily removed from the pipe 2 and the fitting 4 welded onto it. These measures also apply analogously to the embodiments explained below.
Fig. 5 bis 13 zeigen eine zweite Ausführungsform mit dem als eine Armatur ausgebildeten Bauteil 4, enthaltend das Sattelstück 6 und den Stutzen 8 sowie mit dem Bauelement 32, welches als eine Dichtglocke ausgebildet ist, wobei ferner gemäß Fig. 8 ein Dichtelement 34 vorgesehen ist. Die Dichtglocke 32 ist dem Stutzen 8 zugeordnet und derart ausgebildet, dass dessen Abgang oder obere ffnung 36 luftdicht verschließbar ist. Die Dichtglocke 32 enthält einen integrierten Vakuumadapater oder Anschluss 38 für die bereits erwähnte Unterdruckquelle. Ferner enthält das Sattelstück 6 einen Vakuumadapter oder Anschluss 39, welcher gemäß Detail A der Fig. 5, vergrößert in Fig. 6 dargestellt ist. Fig. 7 zeigt eine Ansicht von unten des Sattelstücks 6, dessen Innenfläche 40 das als eine Heizwicklung ausgebildete Heizelement 42 enthält, welches die unten in die Innenfläche 40 mündende Öffnung 44 des Stutzens umgibt. Im Bereich des Außenrandes des Sattelstücks 6 ist das Dichtelement 34 angeordnet, welches als eine umlaufende Dichtung ausgebildet ist. In dem Bereich zwischen dem Heizelement 42 und dem Dichtelement 34 mündet der Durchlass 46 des erwähnten Anschlusses bzw. Vakuumadapters.5 to 13 show a second embodiment with the component 4 designed as a fitting, containing the saddle piece 6 and the connecting piece 8 and with the component 32, which is designed as a sealing bell, a sealing element 34 also being provided according to FIG. 8 , The sealing bell 32 is assigned to the socket 8 and is designed such that its outlet or upper opening 36 can be closed in an airtight manner. The sealing bell 32 contains an integrated vacuum adapter or connection 38 for the vacuum source already mentioned. Furthermore, the saddle piece 6 contains a vacuum adapter or connection 39, which according to detail A of FIG. 5 is shown enlarged in FIG. 6. FIG. 7 shows a view from below of the saddle piece 6, the inner surface 40 of which contains the heating element 42, which is designed as a heating coil and which surrounds the opening 44 of the nozzle opening into the inner surface 40 below. In the area of the outer edge of the saddle piece 6, the sealing element 34 is arranged, which is designed as a circumferential seal. In the area between the heating element 42 and the sealing element 34, the passage 46 of the mentioned connection or vacuum adapter opens.
Wie aus Fig. 8 ersichtlich, ist die Dichtglocke 32 von oben in die Öffnung des Stutzens 8 dicht eingesetzt und das Sattelstück 6 liegt über das Dichtelement 34 auf der Außenfläche 10 des Rohres 2 dicht auf. Fig. 9 zeigt vergrößert das Detail B gemäß Fig. 8, und es ist hier relativ großer Montagespalt 48 zwischen der Außenfläche 10 und der Innenfläche 40 des Sattelstücks 6 gut zu erkennen. Ferner kann der Montagespalt 48 relativ groß sein und in Folge der großen Spaltverhältnisse können Unebenheiten und/ oder Ablattungen problemlos und funktionssicher überwunden werden, wodurch eine drastische Vereinfachung der Montage sichergestellt ist. Das Dichtelement 34 ist teilweise in einer gleichfalls umlaufenden Ringnut 50 in der Innenfläche 40 angeordnet und in zweckmäßiger Weise fixiert und/oder befestigt. Es sei festgehalten, dass das Dichtelement 34 die durch das Heizelement 42 vorgegebene Heizzone vollständig umgibt. Gemäß Fig. 10 ist an den Anschluss der Dichtglocke 32 über eine Anschlussleitung 52 die Verbindung mit der genannten Unterdruckquelle hergestellt, mittels welcher in dem mittels der Dichtglocke 32 und dem Dichtelement 34 nach außen abgedichteten Innenraum 54 ein Unterdruck und/oder Vakuum erzeugt ist. Das Bauteil 4 wird folglich an die Außenfläche 10 des Rohres 2 angepresst, mit der Folge, dass gemäß Fig. 1 1 , welche vergrößert das Detail C gemäß Fig. 10 zeigt, zwischen der Außenfläche 10 und der Innenfläche 40 nur noch ein minimaler Fügespalt 56 vorhanden ist. Somit werden optimale Schweißbedingungen während der Energiezufuhr des Heizelementes 42 sichergestellt. Es sei an dieser Stelle ausdrücklich darauf hingewiesen, dass vor der Verschweißung in besonders zweckmäßiger Weise eine Vorwärmung durchgeführt werden kann, und zwar mit einer gegenüber der Nenn-Schweißleistung reduzierten Leistungs- bzw. Energiezufuhr, wobei etwaige Gase oder Wasserdampf mittels der Unterdruckquelle aus der Schweißzone abgesaugt werden.As can be seen from FIG. 8, the sealing bell 32 is inserted tightly from above into the opening of the connecting piece 8 and the saddle piece 6 lies tightly on the outer surface 10 of the tube 2 via the sealing element 34. FIG. 9 shows detail B according to FIG. 8 on an enlarged scale, and here a relatively large mounting gap 48 between the outer surface 10 and the inner surface 40 of the saddle piece 6 can be clearly seen. Furthermore, the assembly gap 48 can be relatively large and, as a result of the large gap ratios, unevenness and / or slats can be overcome easily and reliably, thereby ensuring a drastic simplification of the assembly. The sealing element 34 is partially arranged in an equally circumferential annular groove 50 in the inner surface 40 and conveniently fixed and / or fastened. It should be noted that the sealing element 34 completely surrounds the heating zone specified by the heating element 42. According to FIG. 10, the connection to the sealing bell 32 is established via a connecting line 52 with the aforementioned vacuum source, by means of which a negative pressure and / or vacuum is generated in the interior 54 sealed off by means of the sealing bell 32 and the sealing element 34. The component 4 is consequently pressed onto the outer surface 10 of the tube 2, with the result that, according to FIG. 11, which shows the detail C according to FIG. 10 on an enlarged scale, only a minimal joining gap 56 is left between the outer surface 10 and the inner surface 40 is available. This ensures optimal welding conditions during the energy supply of the heating element 42. At this point, it should be expressly pointed out that preheating can be carried out in a particularly expedient manner before the welding, with a power or energy supply reduced compared to the nominal welding power, with any gases or water vapor from the welding zone using the vacuum source be sucked off.
Fig. 12 zeigt schematisch die auf die Außenfläche 10 des Rohres 2 aufgesetzte Armatur 4, an welche die Unterdruckquelle 16 und das Schweißgerät 30 in der oben erläuterten Weise angeschlossen sind. Da während des Schweißvorganges durch die Schweißzone der innenliegende Vakuumbereich bzw. die Vakuumfläche in einem äußeren in einem inneren Bereich getrennt wird, sind in bevorzugter Weise zwei Anschlüsse bzw. Vakuumadapter vorhanden, und zwar der Anschluss 38 der Dichtglocke 32 und ferner der Anschluss 39 des Sattelstücks 6, wobei diese beiden Anschlüsse 38, 39 über geeignete Anschlussleitungen mit der Unterdruckquelle 16 verbunden sind. Mittels der Kabel 22, 23 ist die elektrische Verbindung des Schweißgerätes 30 mit dem Heizelement im Bereich der Innenfläche des Sattelstücks 6 hergestellt.12 schematically shows the fitting 4 placed on the outer surface 10 of the tube 2, to which the vacuum source 16 and the welding device 30 are connected in the manner explained above. Since the inner vacuum region or the vacuum surface is separated in an outer region from an inner region by the welding zone during the welding process, two connections or vacuum adapters are preferably present, namely the connection 38 of the sealing bell 32 and also the connection 39 of the saddle piece 6, these two connections 38, 39 being connected to the vacuum source 16 via suitable connecting lines. The electrical connection of the welding device 30 to the heating element in the region of the inner surface of the saddle piece 6 is established by means of the cables 22, 23.
Fig. 13 zeigt teilweise in einer Radialebene einen Schnitt durch das Rohr 2 und das Bauteil 4, dessen Sattelstück 6 nach der Beendigung des Schweißens dicht und fest mit dem Rohr 2 verschweißt ist.13 shows a section in a radial plane through the tube 2 and the component 4, the saddle piece 6 of which is welded tightly and firmly to the tube 2 after the welding has ended.
Eine besondere Ausgestaltung der Erfindung ist in den Fig. 14 bis 20 dargestellt. Hierbei ist das Bauteil als eine Muffe 60 ausgebildet, welche der Einfachheit halber nur teilweise dargestellt ist und eine im wesentlichen zylindrische Innenfläche 62 mit einem Heizelement 64 enthält. Das Heizelement 64 ist in bekannter Weise als eine Heizwendel ausgebildet und definiert die Schweißzone. Am Ende und am Anfang der mittels des Heizelements 64 vorgegebenen Schweißzone ist jeweils ein Bauelement 66, 67 angeordnet, welche nach dem Einschieben eines hier nicht dargestellten Rohres in die Muffe 60 den zwischen der Rohraußenfläche und der Innenfläche 62 vorhandenen Ringraum bzw. Innenraum nach außen abdichten. Die Dichtelemente 66, 67 sind in zweckmäßiger Weise als Dichtungsringe oder O-Ringe ausgebildet, welche teilweise in Ringnuten 68, 69 der Innenfläche 62 angeordnet sind. In dem Bereich zwischen den Dichtelementen 66, 67 mündet ein Anschluss 70, über welchen die Verbindung zu der Unterdruckquelle herstellbar ist. Die Muffe 60 weist an ihrer Außenfläche ferner eine Armierung 71 auf, welche insbesondere als eine Drahtwicklung ausgebildet ist. Eine derartige Armierung ist insbesondere bei Muffen für Rohre mit vergleichsweise großen Außendurchmessern zweckmäßig, um mit einem möglichst geringen Gesamtgewicht eine hohe Festigkeit und Stabilität sicherzustellen und während des Schweißens den erforderlichen Schweiß- bzw. Fügedruck aufrechtzuerhalten.A special embodiment of the invention is shown in FIGS. 14 to 20. Here, the component is designed as a sleeve 60, which is shown only partially for the sake of simplicity and contains an essentially cylindrical inner surface 62 with a heating element 64. The heating element 64 is designed in a known manner as a heating coil and defines the welding zone. A component 66, 67 is arranged at the end and at the beginning of the welding zone specified by the heating element 64, which, after inserting a pipe, not shown here, into the sleeve 60, seals off the annular space or interior space present between the outer pipe surface and the inner surface 62. The sealing elements 66, 67 are expediently designed as sealing rings or O-rings, which are partially arranged in ring grooves 68, 69 of the inner surface 62. In the area between the sealing elements 66, 67, a connection 70 opens, via which the connection to the vacuum source can be established. The sleeve 60 also has a reinforcement 71 on its outer surface, which is designed in particular as a wire winding. Such reinforcement is particularly useful in sleeves for pipes with comparatively large outer diameters in order to ensure high strength and stability with the lowest possible overall weight and to maintain the required welding or joining pressure during welding.
Fig. 15 zeigt vergrößert das Detail D gemäß Fig. 14 mit einem Kontaktstift 72, mit welchem das Drahtende des Heizelements 64 verbunden ist und mit welchem über einen geeigneten Stecker oder dergleichen die Verbindung mit dem Schweißgerät herstellbar ist. Der Kontaktstift 72 ist innen hohl ausgebildet bzw. enthält einen inneren Hohlraum 74, welcher bis zur Muffeninnenfläche durchgeführt ist. Durch den Kontaktstift 72 und den derart ausgebildeten Anschluss 70 kann somit nach Anschluss an die Unterdruckquelle in dem genannten Ringspalt oder Innenraum der Unterdruck bzw. das Vakuum erzeugt werden. Alternativ kann unabhängig von dem Kontaktstift ein separater Anschluss für die Unterdruckquelle vorgesehen sein.FIG. 15 shows an enlarged detail D according to FIG. 14 with a contact pin 72, to which the wire end of the heating element 64 is connected and with which the connection to the welding device can be established via a suitable plug or the like. The contact pin 72 is hollow on the inside or contains an inner cavity 74 which is carried out up to the inner surface of the sleeve. Through the contact pin 72 and the connection 70 designed in this way, after connection to the vacuum source, the vacuum or vacuum can be generated in the said annular gap or interior. Alternatively, a separate connection for the vacuum source can be provided independently of the contact pin.
Fig. 16 zeigt einen Schnitt ähnlich Fig. 14, wobei das Ende eines Rohres 2 teilweise in der Muffe 60 dargestellt ist. Wie ersichtlich, ist ein vergleichweise großer Ringspalt 76 zwischen der Außenfläche 10 des Rohres 2 und der Innenfläche 62 vorhanden, so dass eine einfache Montage gewährleistet ist. Gemäß Fig. 17 ist das Ende des Rohres 2 vollständig in die Muffe 60 derart eingeführt, dass die beiden ringförmigen Dichtelemente bzw. Dichtringe 66, 67 dichtend an der Außenfläche 10 des Rohres 2 anliegen. Gemäß Fig. 18 ist ein Schweißstecker bzw. Kontaktelement 78 mit integrierter Vakuumabsau- gung in den Anschluss 70 eingesteckt. Dieser Schweißstecker 78 ist in bevorzugter Weise sowohl zur elektrischen Kontaktierung und Stromzufuhr zum Heizelement 64 als auch für die Verbindung mit der Unterdruckquelle ausgebildet. Wie in Fig. 19 mittels der Pfeile 80, 82 angedeutet, bewirkt während des Schweißens der im Bereich der Schweißzone erfindungsgemäß erzeugte Unterdruck eine Aufweitung des Rohres 2 und/oder eine Schrumpfen der Muffe 60. Dieser Wirkungsmechanismus wird durch das Vorwärmen noch unterstützt und es werden insgesamt optimale Spaltverhältnisse erreicht. Des Weiteren wird in Folge des erfindungsgemäß vorgegebenen Unterdrucks in Spalt zwischen dem Rohr 2 und der Muffe 60 das Rohr 2 in der Muffe 60 sicher gehalten und somit eine Auszugssicherung gewährleistet.FIG. 16 shows a section similar to FIG. 14, the end of a tube 2 being shown partially in the sleeve 60. As can be seen, there is a comparatively large annular gap 76 between the outer surface 10 of the tube 2 and the inner surface 62, so that simple assembly is ensured. 17, the end of the tube 2 is completely inserted into the sleeve 60 in such a way that the two annular sealing elements or sealing rings 66, 67 bear sealingly on the outer surface 10 of the tube 2. According to FIG. 18, a welding plug or contact element 78 with integrated vacuum extraction is inserted into the connection 70. This welding plug 78 is preferably designed both for electrical contacting and power supply to the heating element 64 and for connection to the vacuum source. As indicated in FIG. 19 by means of arrows 80, 82, during the welding the underpressure generated according to the invention in the area of the welding zone causes the tube 2 to widen and / or the sleeve 60 to shrink. This mechanism of action is supported by preheating and will be overall optimal gap ratios reached. Furthermore, as a result of the negative pressure specified according to the invention in the gap between the tube 2 and the sleeve 60, the tube 2 is held securely in the sleeve 60 and thus a pull-out protection is ensured.
Fig. 20 zeigt das Rohr 2 und die Muffe 60 während der Schweißung. In Folge der Erwärmung des Kunststoffs auf die Schweißtemperatur, in besonders zweckmäßiger Weise unterstützt durch den Unterdruck, sind die Außenfläche des Rohres 2 und die Innenfläche der Muffe 60 in unmittelbarer dichter Anlage und verschweißt. In einer besonderen Ausgestaltung kann durch Überwachung der Absaugluft mit Rauchsensoren ein Brandschutz erreicht werden. Des Weiteren kann in besonders vorteilhafter Weise eine Dichtheitsprüfung mit Vakuum und/oder Druckluft, insbesondere über den Anschluss 70 durchgeführt werden.Fig. 20 shows the pipe 2 and the sleeve 60 during the welding. As a result of the heating of the plastic to the welding temperature, supported in a particularly expedient manner by the negative pressure, the outer surface of the pipe 2 and the inner surface of the sleeve 60 are in direct, tight contact and welded. In a special embodiment, fire protection can be achieved by monitoring the exhaust air with smoke sensors. Furthermore, a leak test with vacuum and / or compressed air, in particular via connection 70, can be carried out in a particularly advantageous manner.
An dieser Stelle sei besonders darauf hingewiesen, dass unabhängig von der jeweiligen konkreten Ausführungsform aufgrund des im Bereich der Schweißzone erfindungsgemäß vorgegebenen Unterdrucks eine lunkerfreie Verschweißung durchgeführt wird. Des Weiteren kann die Verschweißung ohne weiteres auch bei Feuchtigkeit und/oder Wasser im Bereich der Schweißzone durchgeführt werden, da in Folge des Unterdrucks bei Erwärmung, insbesondere während der Vorwärmung entstehender Wasserdampf sofort evakuiert wird. At this point, it should be particularly pointed out that, regardless of the respective specific embodiment, a void-free welding is carried out on account of the negative pressure specified according to the invention in the area of the welding zone. Furthermore, the welding can also be carried out in the vicinity of the welding zone in the event of moisture and / or water, since water vapor which arises as a result of the negative pressure when heated, in particular during preheating, is evacuated immediately.
Bezugszeichenreference numeral
Körper / Rohr Bauteil / Armatur Sattelstück Stutzen Außenfläche von 2 Bauelement / Matte Anschluss / Anschlussschlauch Unterdruckquelle / Vakuumpumpe Bereich von 10 , 19 Kontaktelement / Steckerbuchse Innenfläche von 12 , 23 Kabel , 25 Stecker , 27 Durchführung Außenrand von 12 Schweißgerät Bauelement / Dichtglocke Dichtelement / umlaufende Dichtung Abgang / obere Öffnung von 8 , 39 Anschluss / Vakuumadapter Innenfläche von 6 Heizelement untere Öffnung von 8 Durchlass Montagespalt Ringnut in 40 Anschlussleitung Innenraum Fügespalt MuffeBody / pipe component / fitting saddle piece outer surface of 2 components / mat connection / connecting hose vacuum source / vacuum pump range of 10, 19 contact element / socket inner surface of 12, 23 cables, 25 plugs, 27 implementation outer edge of 12 welding device component / sealing bell sealing element / circumferential Seal outlet / upper opening of 8, 39 connection / vacuum adapter inner surface of 6 heating element lower opening of 8 passage assembly gap ring groove in 40 connecting line interior joint gap sleeve
Innenfläche von 60Inner surface of 60
Heizelement , 67 Dichtelement , 69 Ringnut in 62Heating element, 67 sealing element, 69 ring groove in 62
Anschlussconnection
Armierungreinforcement
Kontaktstift innerer Hohlraum in 72Contact cavity inside 72
Ringspalt / MontagespaltAnnular gap / assembly gap
Schweißstecker , 82 Pfeil Welding plug, 82 arrow

Claims

Patentansprüche claims
1. Vorrichtung zum Verbinden eines Bauteils (4) mit einem Körper (2), wobei das Bauteil (4) insbesondere ein Heizelement (42) enthält und bezüglich des Körpers (2) fixierbar ist, dadurch gekennzeichnet, dass ein Bauelement (12) vorgesehen ist, welches auf dem Bauteil (4) anzuordnen ist und/oder auf dem Körper (2) derart dichtend zur Anlage bringbar ist, dass ein nach außen abgedichteter Innenraum vorhanden ist, und dass das Bauteil (4) oder das Bauelement (12) einen Anschluss (14) an eine Unterdruckquelle (16) aufweist, mittels welcher in dem genannten Innenraum ein Unterdruck herstellbar ist.1. Device for connecting a component (4) to a body (2), the component (4) in particular containing a heating element (42) and being fixable with respect to the body (2), characterized in that a component (12) is provided which is to be arranged on the component (4) and / or can be brought into contact with the body (2) in such a sealing manner that there is an interior space sealed to the outside, and that the component (4) or the component (12) is one Has connection (14) to a vacuum source (16), by means of which a vacuum can be produced in the interior mentioned.
2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Bauelement (12) als eine Matte ausgebildet und derart über das Bauteil (4) und den Körper (2) angeordnet werden kann, dass der Rand der Matte (12) dicht auf dem Körper (2) anliegt, wobei in Folge eines zwischen der Matte (12) und dem Körper (2) erzeugbaren Unterdrucks das Bauteil (4) an den Körper (2) pressbar ist.2. Device according to claim 1, characterized in that the component (12) is designed as a mat and can be arranged over the component (4) and the body (2) such that the edge of the mat (12) is tight on the body (2) is applied, the component (4) being able to be pressed against the body (2) as a result of a negative pressure which can be generated between the mat (12) and the body (2).
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Bauelement oder die Matte (12) wenigstens eine Durchführung (26, 27) und/oder ein Kabel (22, 23) zur Herstellung einer elektrischen Verbindung mit dem Heizelement (42) des Bauteils (4) aufweist.3. Device according to claim 1 or 2, characterized in that the component or the mat (12) at least one bushing (26, 27) and / or a cable (22, 23) for establishing an electrical connection with the heating element (42) of the component (4).
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Bauelement (12) zumindest im Bereich seines Außenrandes (28), mit welchem die Auflage auf der Außenfläche (10) des Körpers (2) erfolgt, auf seiner Innenfläche (20) mit Haftelementen, insbesondere Haltenoppen oder einer speziellen Beschichtung versehen ist.4. Device according to one of claims 1 to 3, characterized in that the component (12) at least in the region of its outer edge (28) with which the bearing on the outer surface (10) of the body (2) takes place on its inner surface ( 20) is provided with adhesive elements, in particular retaining knobs or a special coating.
5. Vorrichtung, insbesondere nach Anspruch 1 , dadurch gekennzeichnet, dass das Bauelement eine Dichtglocke (32) und ein Dichtelement (34) enthält, wobei mittels der Dichtglocke (32) eine Öffnung insbesondere eines Stutzens des Bauteils (4) und/oder einer Armatur dicht verschließbar ist und ferner mittels des Dichtelements (34) das Bauteil (4), insbesondere dessen Sattelstück (6), im Bereich seines Außenrandes bezüglich des Körpers (2) nach außen dicht verschließbar ist.5. The device, in particular according to claim 1, characterized in that the component contains a sealing bell (32) and a sealing element (34), wherein by means of the sealing bell (32) an opening in particular of a nozzle of the component (4) and / or A valve can be tightly closed and, by means of the sealing element (34), the component (4), in particular its saddle piece (6), can be tightly closed to the outside in the region of its outer edge with respect to the body (2).
6. Vorrichtung nach Anspruch 1 oder 5, dadurch gekennzeichnet, dass das Bauteil (4) ein Sattelstück (6) und einen Stutzen (8) enthält, dass eine Innenfläche (40) des Sattelstücks (6) im Bereich des Außenrandes das umlaufende Dichtelement (34), insbesondere in einer Ringnut (50) aufweist und/oder dass die Dichtglocke (32) auf und/oder in die obere Öffnung (36) des Stutzens (8) aufsetzbar oder einsetzbar ausgebildet ist.6. The device according to claim 1 or 5, characterized in that the component (4) contains a saddle piece (6) and a nozzle (8) that an inner surface (40) of the saddle piece (6) in the region of the outer edge, the circumferential sealing element ( 34), in particular in an annular groove (50) and / or that the sealing bell (32) can be placed or inserted on and / or in the upper opening (36) of the connecting piece (8).
7. Vorrichtung, insbesondere nach Anspruch 1 , wobei das Bauteil als eine Muffe (60) ausgebildet ist, in welche der als Rohr (2) ausgebildete Körper, bevorzugt mit seinem Enden, einsetzbar ist, wobei im Bereich der Innenfläche (62) der Muffe (60) das Heizelement (64) angeordnet ist, dadurch gekennzeichnet, dass zu beiden Seiten axial anschließend an die durch das Heizelement (64) vorgegebene Schweißzone jeweils ein Dichtelement (68, 69) angeordnet ist, wobei mittels diesen der Ringspalt und/oder Innenraum zwischen der Muffe (60) und dem eingeschobenen Rohr (2) abdichtbar ist, und dass die Muffe (60) einen im Bereich zwischen den beiden Dichtringen (68, 69) einmündenden Anschluss 70 an die Unterdruckquelle aufweist.7. The device, in particular according to claim 1, wherein the component is designed as a sleeve (60), in which the body designed as a tube (2) can be inserted, preferably with its ends, in the region of the inner surface (62) of the sleeve (60) the heating element (64) is arranged, characterized in that a sealing element (68, 69) is arranged on both sides axially following the welding zone specified by the heating element (64), the annular gap and / or interior space being used by this can be sealed between the sleeve (60) and the inserted tube (2), and that the sleeve (60) has a connection 70 to the vacuum source which opens in the area between the two sealing rings (68, 69).
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der Anschluss (70) einen im Inneren hohlen Kontaktstift (72) enthält, wobei durch den Kontakstift (72) zum einen die elektrische Verbindung mit einem Schweißgerät und zum anderen der Anschluss an die Unterdruckquelle durchführbar ist. 8. The device according to claim 7, characterized in that the connection (70) contains an internally hollow contact pin (72), with the contact pin (72) on the one hand making the electrical connection to a welding device and on the other hand the connection to the vacuum source is.
PCT/EP2003/002479 2002-03-12 2003-03-11 Device for connecting a component to a body WO2003076840A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20320645U DE20320645U1 (en) 2002-03-12 2003-03-11 Device for connecting a component to a body
AU2003214114A AU2003214114A1 (en) 2002-03-12 2003-03-11 Device for connecting a component to a body

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE10210776.9 2002-03-12
DE10210776 2002-03-12
DE10232298.8 2002-07-16
DE10232298 2002-07-16
DE10242452 2002-09-11
DE10242452.7 2002-09-11

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DE202008012094U1 (en) 2008-09-12 2008-12-18 Friatec Ag Transition saddle
DE102010055854A1 (en) 2010-12-22 2012-06-28 Friatec Aktiengesellschaft Saddle formed part for attaching on pipe, has saddle body with inner surface and outer surface, where saddle body has predetermined curvature on its inner surface with curvature radius and curvature axis
WO2013136062A1 (en) * 2012-03-12 2013-09-19 Pioneer Lining Technology Limited Improved electrofusion fittings and methods
EP2813349A3 (en) * 2013-06-11 2015-02-25 Stang GmbH Pipe joint for thermoplastic plastic pipes
WO2015067574A1 (en) * 2013-11-08 2015-05-14 Georg Fischer Piping Systems Ltd. Method for connecting plastic pipes and structure for connecting the same
US9377148B2 (en) 2012-03-12 2016-06-28 Pioneer Lining Technology Limited Electrofusion fittings and methods
CN105849522A (en) * 2013-08-08 2016-08-10 合理管道私人有限公司 Pipe fittings allowing non-destructive pressure testing of integrity of seals
ES2661339A1 (en) * 2016-09-28 2018-03-28 Universidad De Sevilla Method of joining substrates and plastics by controlled thermal adhesion zone (Machine-translation by Google Translate, not legally binding)
WO2021111126A1 (en) * 2019-12-04 2021-06-10 Polypipe Limited Pipe branch connector
EP4163532A1 (en) 2021-10-07 2023-04-12 Stang GmbH Pressure pipe sleeve connection

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EP0341494A2 (en) * 1988-05-10 1989-11-15 Von Roll Ag Process of manufacturing a branch pipe having a saddle piece
US5182440A (en) * 1989-11-29 1993-01-26 Gaz De France Process and connection component using an electrical resistor for the welding of plastic elements
JP2000179773A (en) * 1998-10-07 2000-06-27 Osaka Gas Co Ltd Fixing method for saddle type joint, and saddle type joint

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008012094U1 (en) 2008-09-12 2008-12-18 Friatec Ag Transition saddle
DE102010055854A1 (en) 2010-12-22 2012-06-28 Friatec Aktiengesellschaft Saddle formed part for attaching on pipe, has saddle body with inner surface and outer surface, where saddle body has predetermined curvature on its inner surface with curvature radius and curvature axis
US9377148B2 (en) 2012-03-12 2016-06-28 Pioneer Lining Technology Limited Electrofusion fittings and methods
WO2013136062A1 (en) * 2012-03-12 2013-09-19 Pioneer Lining Technology Limited Improved electrofusion fittings and methods
EP2813349A3 (en) * 2013-06-11 2015-02-25 Stang GmbH Pipe joint for thermoplastic plastic pipes
CN105849522A (en) * 2013-08-08 2016-08-10 合理管道私人有限公司 Pipe fittings allowing non-destructive pressure testing of integrity of seals
CN105849522B (en) * 2013-08-08 2020-06-26 合理管道私人有限公司 Pipe fitting allowing non-destructive pressure testing of seal integrity
WO2015067574A1 (en) * 2013-11-08 2015-05-14 Georg Fischer Piping Systems Ltd. Method for connecting plastic pipes and structure for connecting the same
US10449727B2 (en) 2013-11-08 2019-10-22 Georg Fischer Piping Systems Ltd. Method for connecting plastic pipes and structure for connecting the same
ES2661339A1 (en) * 2016-09-28 2018-03-28 Universidad De Sevilla Method of joining substrates and plastics by controlled thermal adhesion zone (Machine-translation by Google Translate, not legally binding)
WO2018073465A1 (en) * 2016-09-28 2018-04-26 Universidad De Sevilla Method for joining substrates and plastics using an area of controlled heat adhesion
WO2021111126A1 (en) * 2019-12-04 2021-06-10 Polypipe Limited Pipe branch connector
EP4163532A1 (en) 2021-10-07 2023-04-12 Stang GmbH Pressure pipe sleeve connection
DE102021005029A1 (en) 2021-10-07 2023-04-13 Stang Gesellschaft mit beschränkter Haftung Kunststoffrohrvertrieb pressure pipe sleeve
DE102021005029B4 (en) 2021-10-07 2024-10-17 Star Engineering Systems Gmbh pressure pipe socket connection

Also Published As

Publication number Publication date
DE10310876A1 (en) 2003-11-27
AU2003214114A1 (en) 2003-09-22
DE20320645U1 (en) 2004-11-18
DE10310876B4 (en) 2016-01-14

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