WO2000009931A1 - Dispositif et procede de soudage en bout - Google Patents

Dispositif et procede de soudage en bout Download PDF

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Publication number
WO2000009931A1
WO2000009931A1 PCT/AU1999/000657 AU9900657W WO0009931A1 WO 2000009931 A1 WO2000009931 A1 WO 2000009931A1 AU 9900657 W AU9900657 W AU 9900657W WO 0009931 A1 WO0009931 A1 WO 0009931A1
Authority
WO
WIPO (PCT)
Prior art keywords
butt welding
clamping
support members
heater plate
clamping arrangements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU1999/000657
Other languages
English (en)
Inventor
Michael John Brophy
Ian Leonard Kreplins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CANAUST MANAGEMENT SERVICES PTY Ltd
Original Assignee
CANAUST MANAGEMENT SERVICES PTY Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CANAUST MANAGEMENT SERVICES PTY Ltd filed Critical CANAUST MANAGEMENT SERVICES PTY Ltd
Priority to NZ510454A priority Critical patent/NZ510454A/en
Priority to IL14136399A priority patent/IL141363A0/xx
Priority to AU53654/99A priority patent/AU756566B2/en
Publication of WO2000009931A1 publication Critical patent/WO2000009931A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2053—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position
    • B29C65/2084—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by special ways of bringing the welding mirrors into position by pivoting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81261—Thermal properties, e.g. thermal conductivity, thermal expansion coefficient
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8182—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects
    • B29C66/81821—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the thermal insulating constructional aspects of the welding jaws
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8223—Worm or spindle mechanisms
    • 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
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B29C66/8618—Hand-held tools being battery operated
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods
    • B29C66/91212—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws
    • B29C66/91213—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods involving measurement means being part of the welding jaws, e.g. integrated in the welding jaws and measuring the electrical resistance of a resistive element belonging to said welding jaws, said element being, e.g. a thermistor
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature

Definitions

  • This invention relates to butt welding apparatus for welding objects in co-axial alignment and more particularly to apparatus for welding plastic objects, such as polyethylene piping, in co-axial alignment.
  • Plastic piping such as polyethylene piping that is employed in agricultural, mining and industrial applications have traditionally been joined by the use of joining devices that are commonly hard plastic threaded devices that comprise several parts.
  • joining devices are separate to the sections of pipe that they join together. These joins are therefore susceptible to leakage and, over time, often contribute to splitting and/or rupturing of the pipe at the point where the device is connected to the pipe. Also these joining devices often degrade and become brittle through prolonged exposure to the sun. This contributes to fracturing and rupturing of pipe joins.
  • a further problem with butt welding in the field is the need to have accurate cutting of the pipes, so that their end faces are located in a plane that is perpendicular to the longitudinal axis of the pipe. Achieving an end face that is sufficiently perpendicular to the longitudinal axis of the pipe requires the use of additional equipment that may also be difficult to power in the field remote from conventional 240 volt power supplies.
  • a further problem with operating butt welding devices for plastic piping in the field is accommodating the various diameters of piping that is encountered so that they are welded in coaxial alignment.
  • Prior art devices such as US 5,241 ,157 provide a series of collars for locating different diameter pipe in coaxial alignment. This requires an operator of a butt welding device to carry with them a range of collars for welding the various diameters of pipe that may be encountered.
  • An object of the present invention to provide a butt welding device with improved portability.
  • An alternate object is to provide a butt welding device that can accommodate more than one diameter pipe without needing to change the clamp fittings used to locate the pipe onto the butt welding device.
  • An alternate object is to provide a portable butt welding device for plastic components, for example plastic pipes such as polyethylene pipes, that has a simplified control mechanism for the heating element that heats the end face of the components being butt welded.
  • a further object of the present invention is to provide a butt welding device with increased tolerance of end faces that are not square with their longitudinal axis.
  • butt welding apparatus for butt welding in co-axial alignment objects with similar diameter end faces; said apparatus comprising first and second clamping arrangements and a chassis for locating said clamping arrangements; each said clamping arrangement comprising first and second offset support members offset at an angle with respect to each other; said clamping arrangements located on said chassis such that corresponding support members of said clamping arrangements are in co-linear alignment.
  • said support members comprise elongate planer surfaces.
  • said clamping arrangements are moveable relative to said chassis so as to maintain said corresponding support members of said clamping arrangements in co-linear alignment.
  • each said clamping arrangement further comprises at least one clamping element moveable relative to said support members whereby in use said element is brought into contact with an object located in abutment with said support members so as to retain said object in said abutment with said support members.
  • said clamping element is located at an angle relative to each of said support members whereby, in use, said clamping element contacts said object in abutment with said support members in a direction that projects towards the corresponding clamping arrangement of the apparatus whereby said clamping element reacts to forces transmitted longitudinally to said object.
  • said apparatus further comprises a heating element moveable between a first operative position intermediate said clamping arrangements and second non-operative position remote from said clamping arrangements wherein said movement of said clamping arrangements relative to said chassis brings an end face of each said object into abutment with said heating plate when said heating plate is in said operative position.
  • said heating element is adapted for operative association with a power supply and is further adapted to attain thermal equilibrium at pre-defined ambient operating temperatures independently of regulation of said direct current power supply.
  • said heating element is thermally associated with a heat sink whereby said element maintains said equilibrium.
  • said butt welding apparatus further comprising a thermal resistor intermediate said heat sink and said heating element.
  • butt welding apparatus comprising a heater plate for heating objects located by said apparatus for later butt welding of said objects wherein said heater plate is in operative association with a power supply and is further adapted to attain thermal equilibrium at a temperature in a pre-defined range of temperatures independently of regulation of said direct current power supply.
  • said equilibrium temperature is dependent on ambient temperature.
  • said heater plate is thermally associated with a heater sink whereby said element maintains said thermal equilibrium.
  • a method of butt welding in a butt welding apparatus having first and second clamping arrangements with first and second support members angularly disposed to each other; the method comprising the steps of:
  • said apparatus is further adapted to locate said clamping arrangements in co-linear alignment whereby said method further comprises the step 3) of moving said clamping arrangements relative to each other whereby bringing said objects into abutment in co-axial alignment.
  • a method of butt welding in a butt welding apparatus having a heater plate for heating objects prior to abutting said objects so as to form a butt weld said method comprising the steps of:
  • said apparatus further comprises thermal insulation between said heater plate and said heat sink whereby limiting the amount of heat dissipated through said heat sink.
  • Figure 1 is a perspective representation of a butt welding apparatus
  • Figure 2 is the butt welding apparatus of Figure 1 with two sections of pipe located in clamping arrangements;
  • Figure 3 is a perspective representation in greater detail of a heater element and associated handle of Figure 1 ;
  • Figure 4 is an exploded isometric representation of the heater plate in Figure 3.
  • Butt welding of plastic parts is the operation of bringing the end faces of plastic components to a near liquid state and compressing these end faces together so that their semi-liquid polymers inter-mix whereby the components are welded at their end faces upon returning to ambient temperature.
  • Butt welding in this manner requires two plastic items to be heated to a predetermined temperature and for them to be brought into contact under some pressure.
  • inventions of the invention locate objects, typically plastic objects, in co-axial alignment so that they may be butt welded.
  • the plastic objects are usually polyethylene pipes used in rural irrigation and mining applications. These pipes are typically of the type specified in Australian Standard AS2698.2-1985.
  • a clamping arrangement is used to achieve this that is universal in the sense that it operates with a variety of pipe diameters without the need to utilise different fittings for these different diameters.
  • the heating element is preferably planer so that an end face of a plastic object that is in abutment with the element melts, at least partially, whereby the end face assumes the planer profile of the heating element. This assists the butt welding apparatus to be a portable apparatus as the need for components to have their end faces cut with precision is reduced.
  • a further embodiment utilises a self regulating heating element that attains thermal equilibrium independent of power supply regulation. Equilibrium is maintained, in part, through use of the chassis of the but welder apparatus as a heat sink so that the element does not over heat. This enables the heating element to operate off of a constant voltage supply such as a 12V lead acid battery independently of voltage and current regulation circuitry. This increases the portability of the butt welding apparatus.
  • Figure 1 which is a perspective representation of butt welding apparatus 100. It comprises a chassis 115 that supports a first clamping arrangement 105 on the left hand side of the chassis and a second clamping arrangement 1 10 on the right hand side of the chassis.
  • each clamping arrangement comprises a slide having a first surface 145 and a second surface 146 that are angularly disposed relative to each other.
  • the first and second surfaces 145 and 146 respectively are elongate planer surfaces that may be formed from sections of C-channel, or angle though fabricated plate may also be used.
  • the clamping arrangements may alternately be comprised of at least first and second support members disposed at an angle to each other. These support members are preferably planer elements. Such an alternate arrangement may be a cradle arrangement having an elongate central member located in a horizontal plane with a plurality of support elements angularly disposed to the horizontal plane. The plurality of support members comprise first and second sets disposed at an angle relative to each other.
  • a pipe In operation a pipe is located in abutment with support members and is prevented from moving relative to the support members due to their relative angular displacements.
  • the clamping arrangements are preferably supported by a planer support surface on the chassis 115 that locates either the first 145 or second 146 surface of each of the clamping arrangements.
  • This support surface of the chassis enables the clamping arrangements to be located relative to each other so that the first surfaces 145 of each clamping arrangement 105, 110 are aligned in a co-linear manner and so that the second surfaces 146 of each clamping arrangement 105, 110 are aligned in a co-linear manner.
  • the chassis 115 may alternately have a pair of support surfaces that are disposed relative to each other at an angle that corresponds to the angle at which the first and second surfaces 145 and 146 of the clamping arrangements are disposed relative to each other. This angle is preferably 90°.
  • the clamping arrangements comprise a section of C-channel or a section of angle or fabricated plate, a longitudinal apex 150 is formed intermediate the first and second surfaces 145 and 146 respectively of the clamping arrangements 105, 1 10.
  • the longitudinal apex 150 of each clamping arrangement is coaxial.
  • the clamping arrangements 105 and 110 are moveable relative to the chassis 1 15 so as to effect a butt weld between a pair of pipes or to bring the end faces of pipes being welded into proximity with a heating element.
  • the clamping arrangements are moveable along an axis parallel with a plane containing the elongate surfaces 145 and 146 of the clamping arrangements 105, 110. This movement of the clamping arrangements 105, 100 is such that the co-linear alignment of the first surfaces 145 and the second surfaces 146 is maintained.
  • a clamping arrangement has a longitudinal apex 150
  • movement of the clamping arrangements relative to the chassis is in a direction that is parallel with the longitudinal apex 150 of each clamping arrangement.
  • the clamping arrangements operate to locate sections of pipe in abutment with the first surface 145 and the second surface 146.
  • the co-linear alignment of the clamping arrangements cause the sections of pipe to be located coaxially relative to each other.
  • the movement of the clamping arrangement should be such as to bring the sections of pipe into abutment with coaxial alignment.
  • the clamping arrangements further comprise clamp member 160 and clamp member support 155.
  • the clamp member support 155 operates so that the clamp member 160 is moveable relative to the first surface 145 and the second surface 146 of the clamping arrangement.
  • the clamp member 160 is moved relative to the clamp support 155 so as to contact a section of pipe that has been located in the clamping arrangement in abutment with the first surface 145 and the second surface 146.
  • This contact between the clamp member 160 and the pipe operates to retain the object in abutment with the first surface 145 and the second surface 146 of the clamping arrangement.
  • the clamp member 160 is a threaded member that is received by a threaded aperture in the clamp member support 155.
  • the clamp member 160 contacts an object located in abutment with the surfaces 145 and 146 of the clamping arrangement at an angle relative to a longitudinal axis of the first and second surfaces 145 and 146.
  • the clamp member 160 has a line of action that both retains the object in abutment with the first and second surfaces 145 and 146 respectively of the clamping arrangement and also has a line of action that reacts against longitudinal forces imparted to the object.
  • the clamp member 160 subtends an angle relative to the first and second surfaces 145 and 146 that dissects the angle at which the surfaces 145 and 146 are disposed relative to each other.
  • each clamping arrangement has a handle 135 to effect manual movement of the clamping arrangement relative to the chassis.
  • Other mechanical, electrical or hydraulic means of moving the clamping arrangements may be used, however in a portable device it is preferable that manual operation be provided so as to retain simplicity of design in the butt welding apparatus.
  • the butt welding apparatus further comprises a heater plate 125 and handle 140 for moving the heater plate between an operative position that is intermediate the clamping arrangements and a non-operative position, where the heater plate is remote from the clamping arrangements 105 and 110.
  • the chassis 115 may contain heater plate location means, that is preferably a location slot 120 that receives the heater plate 125 when in the operative position.
  • This location slot 120 limits lateral movement of the heater plate 125 when located in the operative position due to contact between the heater plate and an end face of a pipe located within the clamping arrangement. This contact typically occurs when the object is being heated before it is welded.
  • the heater plate should attain operating temperature before this contact occurs.
  • the slot also limits contact between the heater plate 125 and the chassis so as to minimise heat loss from the heater plate 125 through the chassis 115. It also allows pipe ends to abut a central area on the heater plate which ensures that the end face of the pipe adjacent the chassis attains operating temperature.
  • FIG. 2 is a perspective representation of the butt welding apparatus with the first clamping arrangement 105 retaining a first section of pipe 200 and the second clamping arrangement 110 retaining a second section of pipe 205.
  • the first section of pipe 200 has a first end face 210 and similarly the second section of pipe 205 has a second end face 215.
  • the sections of pipe preferably have similar diameters for example within the tolerances defined under Australian Standard AS2698.2-1985 so that they can be butt welded together in co-axial alignment so as to form a continuous section of pipe.
  • the first pipe 200 is located into the first clamping arrangement so that its external wall abuts the first elongate surface 145 and the second elongate surface 146. Effectively the pipe is retained against the apex 150 formed between the first and second sections 145 and 146 respectively of the clamping arrangement. Hence the outer surface of the piping section abuts the first and second surfaces 145 and 146 in a tangential manner. This allows different diameter piping to be accommodated by the clamping arrangements 105 and 110 whilst locating these various diameter piping sections in coaxial alignment.
  • first surfaces 145 of the first and second clamping arrangements 105 and 110 are in co-linear alignment and because the second surfaces 146 of the first and second clamping arrangements 105 and 110 are in co-linear alignment.
  • two sections of pipe each one located in one of the two clamping arrangements 105 and 110, have their outer walls in co-linear alignment due to the co-linear alignment of the first and second surfaces 145 and 146 of the clamping arrangements.
  • the sections of pipe are in coaxial alignment where these sections of pipe are of similar diameters. This alignment of outer surfaces of piping sections allows the clamping arrangements to accommodate a variety of pipe diameters, without needing to change collars or other types of fittings.
  • Each of the clamping arrangements 105 and 110 has a clamp member 160 and clamp member support 115.
  • the clamp members 160 are elongate members that are located at an angle relative to a plane that is perpendicular to the longitudinal axis of the first and second surfaces 145 and 146 in their respective clamping arrangements.
  • clamp members 160 on both clamping arrangements are located on a portion of the clamping arrangement so as to contact the pipe sections adjacent a point where the pipes abut during a butt welding procedure or where the pipes contact the heater plate during a heating procedure.
  • the clamp member 160 contacts the pipe a sufficient distance away from the end face that prevents deforming of the outer wall and end face of the pipe
  • elongate clamp members 160 provides a single point of contact between the clamp member 160 and a section of pipe clamped into the clamping arrangement.
  • This single point of contact is advantageous for butt welding of plastic pipes, such as polyethylene pipes. This is because these plastic pipes typically have a natural radius of curvature from being wound onto a drum after manufacture. This natural radius of curvature does not tend to spring out of the pipes and so needs to be accounted for by the clamping arrangements.
  • a single point of contact between the clamp member 160 and the pipe allows the pipe to curve around this single point of contact.
  • the butt welding apparatus operates according to the following steps. Plastic objects such as polyethylene pipes that are to be butt welded are located in the clamping arrangements.
  • the heater plate 125 is then moved into an operative position by means of heater plate handle 140 so that the heater plate is located within location slot 120.
  • the heater plate may already be at an operative temperature which is preferably above 200°C and below 220°C for polyethylene pipe though temperatures above 220°C can produce adequate welds. To achieve this operating temperature the heater plate is connected to a 12 Volt DC power supply and allowed to stand until a heater element located internally to the heater plate 125 causes the heater plate 125 to attain this operating temperature.
  • the heater plate is a planar element. This enables the heat of the plate 125 to square off the ends of the plastic pipe that contact it. In other words the semi-liquid state of the end face of the pipe enables the end face to assume a profile corresponding with the profile of the heater plate.
  • This use of a contact heating plate in a portable device is particularly advantageous as it reduces the need for precision cutting of end faces of plastic pipes and other objects that are to be butt welded.
  • the heater plate 125 may be removed to a non-operative position that is remote from the clamping arrangements.
  • the clamping arrangements are moved so that the end faces no longer abut the heater plate 125 before the heater plate is moved to the non-operative position.
  • the clamping arrangements are moved together so that the beads of plastic material, on the end faces of the objects being butt welded, contact one another.
  • the clamping arrangements are retained in this position until the semi liquid material has returned to ambient or near ambient temperatures, whereby a join is formed between the two sections of pipe.
  • FIG. 3 is a schematic representation of the heater plate 125 and the handle 140 to which it is attached.
  • the heater plate is preferably made of two sections of 6mm thick aluminium or aluminium alloy plate making the heater plate 12mm thick overall. Other metals may also be used, however it is preferable that they have thermal conductivity properties. Other metals may require different thickness plate for strength considerations.
  • Lugs 300 attach the heater plate 125 to the handle 140 by use of fastening means 315. It is preferable that the lugs 300 are insulated from the handle 140.
  • the handle 140 may be made of metal so that the handle can operate as a heat sink for the heater plate 125. This use of a heat sink assists with regulating the operating temperature of the heater plate 125, in particular it assists with limiting the upper temperature attained by the heating plate.
  • Fibrous washers may be located intermediate the heater plate 125 and the handle 140. These fibrous washers act as thermal insulators so as to reduce the amount of heat that is conducted between the heater plate and the handle 140.
  • the use of two lugs 300 to locate the heater plate 125 onto the handle assists with reducing the amount of heat that is transferred from the heater plate 125 to the handle 140. This helps the heater plate 125 attain its minimum operating temperature of 200°C.
  • the external surface of the heater plate that contacts the end faces of objects that are to be butt welded is preferably coated with a non-stick coating such as polytetra fluoroethylene woven glass fabric coated with PTFE such material is available from as Chemstik 100 available from Chemfab in the United Kingdom.
  • the heater plate is preferably made in two halves that are located in a back to back arrangement. It is believed that 6mm aluminium plate provides sufficient strength in these halves to withstand warping and other defects occurring at operational temperatures.
  • the plate 125 preferably provides an operational area having a 75mm diameter.
  • FIG. 4a is an exploded representation of two back to back halves that form the heater plate 125.
  • Each heater half comprises a recess 405 that locates a resistive heating element 400.
  • the recesses form a cavity internal to the heater plate 125.
  • the resistive heating element is located internally to the cavity.
  • the recess in each half provides equal thickness of metal from the operational surface of the plate 125 to the external surface of the heater element. This ensures that each operational surface of the plate reaches the same operating temperature.
  • this heater element is a resistive heating element that, for arrangements using 6mm aluminium plate, draws approximately 11.5 amps at 12 Volt DC so as to generate approximately 140 Watts of power.
  • the heater plate is thermally conductivity with the handle 140. This enables the handle 140 to operate as a heat sink for the heater plate. This enables the heater plate to attain an equilibrium temperature in the operational range of 200°C to 220°C independently of voltage and current supply regulation devices.
  • the chassis may also operate as a heat sink through thermal contact with the handle.
  • the operational temperature of the heater plate may vary slightly depending on ambient temperature. Where ambient temperature is relatively low, such as below 15°C, then it may be beneficial to provide some form of insulating cover for the heater plate so that it can attain operational temperature.
  • the cover may also be beneficial in windy conditions.
  • the cover is preferably made of a thermally insulating material capable for sustaining contact with metal plates at temperatures at or above 200°C for extended periods. For moderate ambient temperature conditions, between say 15°C and 30°C the heater plate typically attains an equilibrium temperature between the range of approximately 200°C and 220°C. This enables a standard 12 Volt lead acid car battery to supply power to the heating element for a continuous periods.
  • the heater plate attains equilibrium temperature typically within the range of 200°C to 220°C. This obviates the needs to have regulation devices for the power supply.
  • the heater element preferably comprises a resistive heating element 450 that is circular in shape and has a diameter of 75mm.
  • the resistive heating element 450 is located in contact with mica plates 455, one on each side. In operation the mica plate abut the walls of the heater plate halves so that any air gap between the walls of the plate halves and the mica plates are minimal so as to transfer the maximum amount of heat from the resistive heating element to the heater plate 125.
  • the specification refers generally to plastic pipes, however other plastic objects may be butt welded by the apparatus described herein.
  • the invention is understood not to be limited to plastic pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

Dispositif de soudage en bout (100) permettant de souder en bout, en alignement coaxial, des objets ayant des faces terminales de diamètre similaire. Le dispositif (100) comprend un premier (105) et un second (110) mécanisme de serrage, ainsi qu'un châssis (115) permettant de positionner lesdits mécanisme de serrage. Chaque mécanisme de serrage comprend un premier et un second élément support, décalés de façon à former un angle l'un par rapport à l'autre. Les mécanismes de serrage sont disposés sur ledit châssis (115) de façon que leurs surfaces correspondantes (145, 146) soient colinéairement alignées.
PCT/AU1999/000657 1998-08-12 1999-08-12 Dispositif et procede de soudage en bout Ceased WO2000009931A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NZ510454A NZ510454A (en) 1998-08-12 1999-08-12 Butt welding apparatus with clamping arrangement having clamping members at an angle realtive to one another
IL14136399A IL141363A0 (en) 1998-08-12 1999-08-12 Butt welding apparatus and method of butt welding therefor
AU53654/99A AU756566B2 (en) 1998-08-12 1999-08-12 Butt welding apparatus and method of butt welding therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP5194A AUPP519498A0 (en) 1998-08-12 1998-08-12 Low voltage DC pipe welder
AUPP5194 1998-08-12

Publications (1)

Publication Number Publication Date
WO2000009931A1 true WO2000009931A1 (fr) 2000-02-24

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ID=3809427

Family Applications (1)

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PCT/AU1999/000657 Ceased WO2000009931A1 (fr) 1998-08-12 1999-08-12 Dispositif et procede de soudage en bout

Country Status (4)

Country Link
AU (1) AUPP519498A0 (fr)
IL (1) IL141363A0 (fr)
NZ (2) NZ510454A (fr)
WO (1) WO2000009931A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002066879A1 (fr) * 2001-02-16 2002-08-29 Canaust Management Services Pty Ltd Appareil de soudage bout a bout
DE102006038796A1 (de) * 2006-08-18 2008-02-21 Rotox Gmbh B. Eisenbach Verfahren und Vorrichtung zum Verschweißen von Kunststoffprofilen, insbesondere zur Bildung von Fenster- oder Türrahmen
CN105082530A (zh) * 2015-09-16 2015-11-25 浙江天井塑业有限公司 一种波纹管接头的热熔焊接机

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356493A1 (fr) * 1976-06-30 1978-01-27 Laurent Philippe Appareil de soudage des matieres plastiques, a fil chaud
US5241157A (en) * 1990-04-27 1993-08-31 Georg Fischer Ag Arrangement for butt-welding plastic material components
EP0602960A1 (fr) * 1992-12-16 1994-06-22 Tdw Delaware, Inc. Machine pour soudage bout à bout de tubes plastiques
US5397425A (en) * 1990-08-20 1995-03-14 Denco, Inc. Total containment welding of plastic tubes
DE4435736A1 (de) * 1994-10-06 1996-04-11 Stroeer Gmbh Verfahren und Vorrichtung zum Stumpfschweißen von Werkstücken aus thermoplastischen Kunststoffen
EP0732191A2 (fr) * 1995-03-15 1996-09-18 Georg Fischer Rohrleitungssysteme AG Dispositif de soudage d'éléments tubulaires en matière thermoplastique
US5562796A (en) * 1994-05-24 1996-10-08 Dorner Mfg. Corp. Heat press for joining the spliced ends of a conveyor belt
WO1997014548A1 (fr) * 1995-10-16 1997-04-24 Bernhard Ulrich Procede et dispositif pour le soudage au miroir de pieces tubulaires en matiere plastique
US5770006A (en) * 1997-01-13 1998-06-23 Tdw Delaware, Inc. Butt fusion machine for manufacturing full size segemented pipe turns
AU7510898A (en) * 1997-09-01 1999-03-11 Georg Fischer Rohrleitungssysteme Ag A method of welding together articles made of plastic material

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356493A1 (fr) * 1976-06-30 1978-01-27 Laurent Philippe Appareil de soudage des matieres plastiques, a fil chaud
US5241157A (en) * 1990-04-27 1993-08-31 Georg Fischer Ag Arrangement for butt-welding plastic material components
US5397425A (en) * 1990-08-20 1995-03-14 Denco, Inc. Total containment welding of plastic tubes
EP0602960A1 (fr) * 1992-12-16 1994-06-22 Tdw Delaware, Inc. Machine pour soudage bout à bout de tubes plastiques
US5562796A (en) * 1994-05-24 1996-10-08 Dorner Mfg. Corp. Heat press for joining the spliced ends of a conveyor belt
DE4435736A1 (de) * 1994-10-06 1996-04-11 Stroeer Gmbh Verfahren und Vorrichtung zum Stumpfschweißen von Werkstücken aus thermoplastischen Kunststoffen
EP0732191A2 (fr) * 1995-03-15 1996-09-18 Georg Fischer Rohrleitungssysteme AG Dispositif de soudage d'éléments tubulaires en matière thermoplastique
WO1997014548A1 (fr) * 1995-10-16 1997-04-24 Bernhard Ulrich Procede et dispositif pour le soudage au miroir de pieces tubulaires en matiere plastique
US5770006A (en) * 1997-01-13 1998-06-23 Tdw Delaware, Inc. Butt fusion machine for manufacturing full size segemented pipe turns
AU7510898A (en) * 1997-09-01 1999-03-11 Georg Fischer Rohrleitungssysteme Ag A method of welding together articles made of plastic material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002066879A1 (fr) * 2001-02-16 2002-08-29 Canaust Management Services Pty Ltd Appareil de soudage bout a bout
DE102006038796A1 (de) * 2006-08-18 2008-02-21 Rotox Gmbh B. Eisenbach Verfahren und Vorrichtung zum Verschweißen von Kunststoffprofilen, insbesondere zur Bildung von Fenster- oder Türrahmen
CN105082530A (zh) * 2015-09-16 2015-11-25 浙江天井塑业有限公司 一种波纹管接头的热熔焊接机

Also Published As

Publication number Publication date
NZ510454A (en) 2003-09-26
NZ524379A (en) 2004-10-29
AUPP519498A0 (en) 1998-09-03
IL141363A0 (en) 2002-03-10

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