DD242779A1 - METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS - Google Patents

METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS Download PDF

Info

Publication number
DD242779A1
DD242779A1 DD85283059A DD28305985A DD242779A1 DD 242779 A1 DD242779 A1 DD 242779A1 DD 85283059 A DD85283059 A DD 85283059A DD 28305985 A DD28305985 A DD 28305985A DD 242779 A1 DD242779 A1 DD 242779A1
Authority
DD
German Democratic Republic
Prior art keywords
seam
welding
pressure chamber
filler material
joint
Prior art date
Application number
DD85283059A
Other languages
German (de)
Inventor
Volkmar Horn
Werner Colditz
Original Assignee
Tech Hochschule C Schorlemmer
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 Tech Hochschule C Schorlemmer filed Critical Tech Hochschule C Schorlemmer
Priority to DD85283059A priority Critical patent/DD242779A1/en
Publication of DD242779A1 publication Critical patent/DD242779A1/en

Links

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
    • B29C66/01—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
    • 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
    • B29C65/2061—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 sliding
    • B29C65/2069—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 sliding with an angle with respect to the plane comprising the parts to be joined
    • B29C65/2076—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 sliding with an angle with respect to the plane comprising the parts to be joined perpendicularly to the plane comprising 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
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • 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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—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
    • B29C66/735—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 extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—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
    • B29C66/816—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
    • B29C66/8161—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 said pressing elements being supported or backed-up by springs or by resilient material
    • 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
    • B29C66/90—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
    • B29C66/91441—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 non-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
    • B29C66/90—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
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D

Abstract

Das erfindungsgemaesse Verfahren sowie die Anordnung (Vorrichtung) sind beim Herstellen und reparieren von Behaeltern, Anlagen, Kanaelen, Leitungen usw. aus Thermoplast-Halbzeugen durch Schweissen mit Zusatzwerkstoff anwendbar. Ziel- und aufgabengemaess werden die Schweissfugen auf einfach durchzufuehrende Weise mit geringem geraetetechnischen Aufwand und ohne Materialverluste qualitaetssicher durch thermoplastischen Zusatzwerkstoff ausgefuellt, wobei unter konstanten Schweissbedingungen Naehte mit gleichbleibender Festigkeit entstehen. Das geschieht, indem durch Erhitzen plastizierter Zusatzwerkstoff mittels einer Vorrichtung so in die Fuge zwischen den zu verbindenen Werkstuecken gebracht wird, dass er in Beruehrung mit den durch Erhitzen auf Schweisstemperatur ebenfalls plastizierten Fugenflanken in definierter, einstellbarer Weise vorwiegend senkrecht zur Fugenlaengsrichtung fliesst. Zum Durchfuehren des Verfahrens dient eine aus einer aufsetzbaren Druckkammer fuer den Zusatzwerkstoff und einem als Nahtunterlage ausgebildeten Gegenhalter bestehende Anordnung. Fig. 1The inventive method and the arrangement (device) are applicable in the manufacture and repair of containers, equipment, channels, lines, etc. of thermoplastic semi-finished by welding with filler material. Goal and task the welding joints are filled in a simple manner with low technical effort and without loss of material quality assurance by thermoplastic filler material, under constant welding conditions seams arise with constant strength. This is done by means of plasticized filler material is brought by means of a device in the joint between the workpieces to be joined, that it flows in contact with the heating by welding to welding temperature also grouted joint edges in a defined, adjustable manner mainly perpendicular to Fugenlaengsrichtung. For carrying out the method, an arrangement consisting of an attachable pressure chamber for the filler material and designed as a suture backing counterholder arrangement is used. Fig. 1

Description

Hierzu 2 Seiten ZeichnungenFor this 2 pages drawings

Anwendungsgebiet der ErfindungField of application of the invention

Die Erfindung betrifft ein Verfahren und eine Anordnung zum Verschweißen von Werkstücken aus thermoplastischen Werkstoffen mittels Zusatzwerkstoffen, anwendbar in der plastverarbeitenden Industrie im Labor- und Produktionsmaßstab sowie im Reparatur- und Servicesektor anlagen- und apparatetechnisch orientierter Industriebetriebe.The invention relates to a method and an arrangement for welding workpieces made of thermoplastic materials by means of filler materials, applicable in the plastic processing industry in laboratory and production scale as well as in the repair and service sector plant and apparatus technology oriented industrial enterprises.

Charakteristik der bekannten technischen LösungenCharacteristic of the known technical solutions

Es ist bekannt, Werkstücke aus thermoplastischen Werkstoffen durch Ausfüllung der zwischen ihnen bestehenden Fugen mit ebenfalls thermoplastischen Zusatzwerkstoffen zu verschweißen, wobei der durch Erhitzen plastifizierte Zusatzwerkstoff als Stab oder Strang vom Nahtanfang aus in Fugenlängsrichtung unter Druck in die ebenfalls durch Erhitzen an ihren Rändern plastizierte Fuge eingebracht wird. Das betrifft das Warmgasschweißen sowie das Extrusionsschweißen mit seinen Varianten nach DE-A1 1604535, OE-A1 2823171, DD-PS 149787 und DD-PS 149337. Die Verbindung bildet sich dabei durch Relativbewegungen (Abgleiten, Fließen, Scheren) zwischen Zusatzwerkstoff und Grundwerkstoffen, die nicht in definierter Weise ablaufen. Nachteilig ist insbesondere, daß unter sonst gleichen Bedingungen, z.B. beim Schweißen gleicher Werkstoffe derselben Abmessungen mit gleichen Parametern, Verbindungen mit unterschiedlichen Festigkeiten entstehen. Warmgasschweißverfahren erfordern qualifizierte Schweißer, die ihre Qualifikation durch regelmäßige Wiederholungsprüfungen nachweisen müssen. Beim Extrusionsschweißen ist das nicht nötig, aber man braucht teure und komplizierte Geräte. Nachteilig ist außerdem, daß beide Verfahren zusätzliche personelle und materielle Aufwendungen erfordern, in Gestalt von An- und Ausläufen für die Nähte, die nach dem Schweißen entfernt werden müssen. Beim Extrusionsschweißen bleibt außerdem nach dem Schweißen Zusatzwerkstoff im Extruder zurück, der wegen thermischer Schädigung nicht mehr verwendet werden kann und entfernt werden muß.It is known to weld workpieces made of thermoplastic materials by filling the existing between them joints with also thermoplastic filler materials, wherein the plasticized by heating filler material introduced as a rod or strand from the seam beginning in joint longitudinal direction under pressure in the also plasticized by heating at their edges joint becomes. This relates to hot gas welding and extrusion welding with its variants according to DE-A1 1604535, OE-A1 2823171, DD-PS 149787 and DD-PS 149337. The compound is formed by relative movements (slipping, flowing, shearing) between filler material and base materials, which do not take place in a defined way. A particular disadvantage is that under otherwise identical conditions, e.g. when welding the same materials of the same dimensions with the same parameters, compounds with different strengths arise. Hot gas welding requires qualified welders who must prove their qualification through regular retesting. This is not necessary with extrusion welding, but you need expensive and complicated equipment. Another disadvantage is that both methods require additional human and material expenses, in the form of inlets and outlets for the seams that must be removed after welding. In extrusion welding also remains after welding filler material in the extruder, which can not be used because of thermal damage and must be removed.

Ziel der ErfindungObject of the invention

Es ist das Ziel der Erfindung, ein Verfahren und eine Anordnung zum Verschweißen von Werkstücken aus thermoplastischen Werkstoffen unter Ausfüllung zwischen ihnen bestehender Fugen zu schaffen, welcheIt is the object of the invention to provide a method and an arrangement for welding workpieces made of thermoplastic materials by filling between them existing joints, which

— bei konstanten Schweißbedingungen Nähte mit gleichbleibender, hoher Festigkeit gewährleisten- To ensure seams with consistent, high strength at constant welding conditions

— sich einfach und ohne langes Üben ausführen lassen, dabei- Can be carried out easily and without long practice, thereby

— wenig gerätetechnischen Aufwand erfordern und- require little equipment and effort

— nicht mehr Werkstoff benötigen, als zum Ausfüllen der Fugen gebraucht wird.- Do not need more material than is needed to fill in the joints.

Wesen der ErfindungEssence of the invention

Der Erfindung liegt die Aufgabe zugrunde, vorwiegend platten- oder rohrförmige, aber auch in andere Gestalten umgeformte Halbzeuge aus thermoplastischen Werkstoffen wie Polyethylen, Polypropylen und Polyvinylchlorid unter Ausfüllung zwischen ihnen befindlicher Fugen qualitätssicher und auf einfach durchzuführende Weise mit geringem gerätetechnischem Aufwand sowie ohne Materialverluste zu Behältern, Anlagen, Kanälen, Leitungen und dgl. zu verschweißen bzw. Reparaturen an Behältern, Anlagen, Kanälen, Leitungen und dgl. unter den genannten Bedingungen zu gewährleisten. Erfindungsgemäß wird die Aufgabe derart gelöst, daß durch Erhitzen plastizierter Zusatzwerkstoff mittels einer Anordnung (Vorrichtung) so in die Fuge zwischen den zu verbindenden Werkstücken gebracht wird, daß er in Berührung mit den durch Erhitzen auf Schweißtemperatur ebenfalls plastizierten Fugenflanken in definierter, einstellbarer Weise vorwiegend senkrecht zur Fugenlängsrichtung fließt. Die so erzeugten, definierten Relativbewegungen (Abgleiten, Fließen, Scheren) bewirken eine definierte, unter gleichen Bedingungen gleichbleibende Verbindungsbildung, so daß unter gleichbleibenden Bedingungen Schweißungen mit gleichbleibender, hoher Festigkeit hergestellt werden können.The invention is based on the object, mainly plate-shaped or tubular, but also transformed into other shapes semi-finished products made of thermoplastic materials such as polyethylene, polypropylene and polyvinyl chloride under filling between them joints quality assurance and easy to be performed manner with little technical equipment effort and without loss of material to containers To weld installations, channels, lines and the like or to ensure repairs to containers, equipment, channels, lines and the like. Under the above conditions. According to the invention the object is achieved in that by heating plasticized filler material by means of an arrangement (device) is brought into the joint between the workpieces to be joined, that it in contact with the heat-welding at welding temperature also plasticized joint flanks in a defined, adjustable manner predominantly perpendicular flows to the joint longitudinal direction. The thus generated, defined relative movements (slipping, flowing, shearing) cause a defined, under the same conditions consistent connection formation, so that under constant conditions welds can be made with consistent, high strength.

Die zum Durchführen des Verfahrens verwendete Anordnung besteht aus einer gegebenenfalls heizbaren Druckkammer und einem als Nahtunterlage ausgebildeten Gegenhalter. Die Druckkammer enthält einen von Außen zu betätigenden, durch eine ihrer Wände geführten Druckstempel. Die gegenüberliegende Seite ist offen (Kammeröffnung). Die Kammeröffnung ist so lang wie die zu schweißende Naht bzw. ein Nahtabschnitt, während ihre Breite der Fugenbreite zuzüglich der Breiten (Tiefen) der durch Erhitzen auf Schweißtemperatur plastizierten Bereiche der Fugenflanken von vorzugsweise je 1 ...3 mm entspricht. Ander Öffnung sind die seitlichen Begrenzungsflächen der Druckkammer den außerhalb der Fuge gelegenen Teilen der erforderlichen, oberen Nahtüberhöhung (äußeren Nahtkontur) nachgebildet, so daß Hohlräume zum Nahtformen vorhanden sind. Die Vorder- und Hinterwände ragen von der Kammeröffnung aus mindestens um die Tiefe der auszufüllenden Fuge über die Seitenwände hinaus. Das durch die untere Begrenzungsfläche des Druckstempels in seiner weitestmöglich von der Kammeröffnung entfernten Stellung, durch die Kammeröffnung an den unteren Rändern der Seitenwände sowie durch die von den Rändern der unteren Begrenzungsfläche des Druckstempels bis zu den unteren Rändern der Seitenwände reichenden Teile der Vorder- und Hinterwände und der Seitenwände selbst begrenzte, freie Volumen der Druckkammer ist größer oder gleich dem Volumen der auszufüllenden Fugen zuzüglich dem der erforderlichen Nahtüberhöhungen. Mindestens der innerhalb der Druckkammer verschiebbare Teil des Druckstempels entspricht in Länge und Breite den Innenmaßen der Druckkammer, wenn man von den an der Kammeröffnung gelegenen Hohlräumen zum Nahtformen in den seitlichen Begrenzungsflächen absieht. Seine untere Fläche ist so gestaltet, daß sie zusammen mit den Begrenzungsflächen der Hohlräume zum Nahtformen eine Negativform der erforderlichen, oberen Nahtüberhöhung (äußeren Nahtkontur) darstellt.The arrangement used to carry out the method consists of an optionally heatable pressure chamber and designed as a seam pad counter-holder. The pressure chamber contains an externally operated, guided through one of its walls plunger. The opposite side is open (chamber opening). The chamber opening is as long as the seam to be welded or a seam section, while its width corresponds to the joint width plus the widths (depths) of the areas of the joint flanks, which are plasticized by heating to welding temperature, preferably 1 ... 3 mm. At the other opening, the lateral boundary surfaces of the pressure chamber are modeled on the parts of the required, upper seam superelevation (outer seam contour) located outside the joint, so that seams for seam molding are present. The front and rear walls protrude from the chamber opening at least to the depth of the gap to be filled over the side walls. The position as far as possible from the chamber opening through the lower boundary surface of the plunger, through the chamber opening at the lower edges of the side walls and through the parts of the front and rear walls extending from the edges of the lower boundary surface of the plunger to the lower edges of the sidewalls and the sidewalls themselves limited, free volume of the pressure chamber is greater than or equal to the volume of the filled joints plus the required seam exaggerations. At least the displaceable within the pressure chamber part of the plunger corresponds in length and width to the internal dimensions of the pressure chamber, apart from the cavities located at the chamber opening for seam molding in the lateral boundary surfaces. Its lower surface is designed so that, together with the boundary surfaces of the seam forming cavities, it forms a negative mold of the required upper seam superelevation (outer seam contour).

Der als Nahtunterlage ausgebildete Gegenhalter enthält an bzw. in einem an einer Seite offenen Hohlraum einen gegebenenfalls elektrisch heizbaren Längsdorn, einen oder mehrere Anschlagdorne sowie ein oder mehrere Federn, wobei der Hohlraum hinsichtlich seiner Breite der Fugenbreite, hinsichtlich seiner Länge mindestens derjenigen des Druckstempels und hinsichtlich seiner Tiefe der Summe der Tiefenmaße des Längsdornes, eines Anschlagdornes und der notwendigen Nahtüberhöhung der Nahtunterseite entspricht. Die Anschlagdorne sind an der der offenen Fläche des Hohlraumes gegenüberliegenden Fläche befestigt. Die seitlichen Begrenzungsflächen des Hohlraumes sind in der Nähe seiner Öffnung den außerhalb der Fuge gelegenen Teilen der erforderlichen unteren Nahtüberhöhung (äußeren Nahtkontur) nachgebildet, so daß auch hier Hohlräume zum Nahtformen vorhanden sind. Seine restlichen, seitlichen Begrenzungsflächen stellen Führungsflächen für den gegebenenfalls elektrisch beheizbaren Längsdorn dar, der im Hohlraum und mindestens teilweise auch außerhalb seiner gegen die Kraft der genannten Federn bis zu den Anschlagdornen in Tiefenrichtung verschiebbar angeordnet ist. Die Federn sind so beschaffen, daß die den Werkstoffen und Abmessungen der jeweiligen Fügeteile sowie den Schweißbedingungen gemäße, auf den Längsdorn wirkende Federkraft derjenigen Kraft entspricht, welche die durch Erhitzen auf Schweißtemperatur plastizierten Bereiche der Fugenflanken dem beim Verschieben des Druckstempels in der Druckkammer stattfindenden Fließen von in ihrem freien Volumen befindlichem, plastiziertem Zusatzwerkstoff entgegensetzen.The counter-holder designed as a seam pad contains an optionally electrically heatable longitudinal mandrel, one or more stop pins and one or more springs, wherein the cavity with respect to its width of the joint width, in terms of its length at least that of the plunger and in terms its depth corresponds to the sum of the depth dimensions of the longitudinal mandrel, a stop pin and the necessary seam exaggeration of the seam underside. The stop pins are attached to the surface opposite the open surface of the cavity. The lateral boundary surfaces of the cavity are modeled in the vicinity of its opening located outside of the joint parts of the required lower seam exaggeration (outer seam contour), so that there are also cavities for seaming. His remaining, lateral boundary surfaces constitute guide surfaces for the optionally electrically heatable longitudinal mandrel, which is arranged in the cavity and at least partially outside of it against the force of said springs to the stop pins in the depth direction displaced. The springs are such that the spring force corresponding to the materials and dimensions of the respective parts to be joined and the welding conditions corresponds to the force exerted on the longitudinal mandrel by the areas of the joint flanks which have been plastified by heating to the welding temperature, the flow occurring in the pressure chamber during displacement of the plunger oppose in their free volume, plasticized filler material.

Ausführungsbeispielembodiment

Das erfindungsgemäße Verfahren und die erfindungsgemäße Anordnung sollen an einem Ausführungsbeispiel näher beschrieben werden. Es betrifft das Schweißen kurzer Nähte von etwa 100mm Länge zum Fertigen von Anlagen-Einbauten aus Polyethylen niederer Dichte. Die Anordnung ist in den Figuren 1 und 2 dargestellt, wobei Figur 1 einen Schnitt quer zur Nahtfugenlängsrichtung und Figur 2 einen Schnitt parallel zur Nahtfugenlängsrichtung in der Fugenmitte zeigen. Die zu verbindenden Teile 1 (die Schweißteile) von 8 mm Dicke werden so auf den als Nahtunterlage ausgebildeten Gegenhalter 3 gelegt, daß ihre Fugenflächen (Nahtflanken) 2 den mit PTFE beschichteten, mittels eingebauter Heizkörper 13 auf 2000C erhitzten Längsdorn 4 berühren. Nach etwa einer Minute, während deren sich die Fugenflächen auf Schweißtemperatur erhitzen und plastiziert werden, wird die Druckkammer 5 so auf den zu schweißenden Nahtabschnitt gesetzt, daß eine Abdichtung an der Nahtoberfläche erreicht wird, wobei der Hohlraum 6 Teile der späteren Nahtoberfläche formt. Die Längenbegrenzung erfolgt durch Vorder- und Hinterwand 7 der Druckkammer 5. Die Druckkammer enthält dabei den vorher in einem Wärmeschrank in einer dem Hohlraum der Druckkammer entsprechenden Form auf 180°C erhitzten, in seinem Volumen dem zu schweißenden Nahtabschnitt angepaßten Zusatzwerkstoff 8. Dann wird der Druckstempel 9 heruntergedrückt, bis der gegen die Federn 10The inventive method and the arrangement according to the invention will be described in more detail using an exemplary embodiment. It concerns the welding of short seams of about 100mm in length for the manufacture of low density polyethylene installations. The arrangement is shown in Figures 1 and 2, wherein Figure 1 shows a section transverse to the seam longitudinal direction and Figure 2 shows a section parallel to the seam longitudinal direction in the center of the joint. The parts to be joined 1 (the welding parts) of 8 mm thickness are placed on the formed as a suture backing 3, that their joint surfaces (seam flanks) 2 touch the PTFE-coated, heated by means of built-in heater 13 to 200 0 C longitudinal mandrel 4. After about one minute, during which the joint surfaces are heated and plasticized to welding temperature, the pressure chamber 5 is placed on the weld portion to be welded so that a seal is achieved at the seam surface, the cavity 6 forming parts of the later seam surface. The pressure chamber contains the previously in a heating cabinet in a cavity corresponding to the pressure chamber corresponding shape heated to 180 ° C, adapted in its volume to be welded seam section filler 8. Then the Pressed plunger 9 down until the against the springs 10th

bewegliche Längsdorn 4 die auf der Grundplatte 14 der Nahtunterlage 3 befestigten Anschlagdorne 11 berührt. Weil der zum Aufnehmen des Zusatzwerkstoffes 8 bestimmte Hohlraum der Druckkammer 5 und auch der Druckstempel 9 an jeder Seite des in Figur 1 dargestellten Querschnittes um 1,5 mm breiter sind als der Längsdorn 4, fließt dabei nicht nur Zusatzwerkstoff, sondern auch Material aus den ebenfalls auf Schweißtemperatur erhitzten Bereichen der Fugenflächen (Nahtflanken) 2 in die gewünschte, senkrecht zur Nahtlängsachse definierte Richtung. Durch Abstimmen derauf den Druckstempel 9 wirkenden Kraft und der Gegenkraft der Federn 10 mit dem temperaturabhängigen Fließwiderstand des zu schweißenden Werkstoffes mit Hilfe von Vorversuchen sind außer der erwähnten, definierten Fließrichtung auch definierte Intensitäten der die Verbindungsbildung bewirkenden Relativbewegungen (Abgleiten, Fließen, Scheren) zwischen Bereichen des Grund- und solchen des Zusatzwerkstoffes einstellbar und damit definierte und reproduzierbare Nahtqualitäten. Der heruntergedrückte Druckstempel 9 der Druckkammer 5 wird eine Minute in seiner Stellung fixiert, ehe die Druckkammer von der geschweißten, durch die Hohlräume 6 und den leicht hohlgeformten Druckstempel 9 sowie den ebenfalls leicht hohlgeformten Längsdorn 4 und die neben ihm in der Nahtunterlage 3 befindlichen Hohlräume 12, ferner durch die Vorder- und Hinterwand 7 geformte Naht entfernt wird. Die gleiche Verfahrensweise kann zum abschnittsweisen Schweißen längerer Nähte angewandt werden.movable longitudinal mandrel 4 touches the attached to the base plate 14 of the seam pad 3 stop pins 11. Because the cavity for receiving the filler material 8 of the pressure chamber 5 and also the plunger 9 are on each side of the cross section shown in Figure 1 by 1.5 mm wider than the longitudinal mandrel 4, not only filler material, but also flows from the material heated to welding temperature areas of the joint surfaces (seam flanks) 2 in the desired, defined perpendicular to the seam longitudinal axis direction. By tuning the force acting on the plunger 9 and the counterforce of the springs 10 with the temperature-dependent flow resistance of the material to be welded by means of preliminary tests are defined beyond the mentioned flow direction defined intensities of the compound formation causing relative movements (sliding, flowing, shearing) between areas the basic and that of the additional material adjustable and thus defined and reproducible seam qualities. The depressed plunger 9 of the pressure chamber 5 is fixed in position for one minute before the pressure chamber from the welded, through the cavities 6 and the slightly hollow-shaped plunger 9 and also slightly hollow-shaped longitudinal mandrel 4 and located next to him in the seam pad 3 cavities 12th Further, formed by the front and rear wall 7 formed seam is removed. The same procedure can be used for the partial welding of longer seams.

Claims (6)

-1- Z4Z //a-1- Z4Z // a Patentansprüche:claims: 1. Verfahren zum Verschweißen von thermoplastischen Werkstoffen unter Ausfüllung zwischen ihnen befindlicher Fugen mit einem thermoplastischen, durch Erhitzen plastizierten Zusatzwerkstoff, gekennzeichnet dadurch, daß der Zusatzwerkstoff mittels einer Vorrichtung beim Einbringen in die Fuge gezwungen wird, in Berührung mit den Fugenflanken in definierter, einstellbarer Weise vorwiegend senkrecht zur Fugenlängsrichtung zu fließen.1. A method for welding thermoplastic materials under filling between them joints with a thermoplastic, plasticized by heating filler material, characterized in that the filler material is forced by means of a device when introduced into the joint, in contact with the joint edges in a defined, adjustable manner mainly to flow perpendicular to the joint longitudinal direction. 2. Anordnung zum Durchführen des Verfahrens nach Punkt 1 mit einer den Zusatzwerkstoff aufnehmenden, stempelbeaufschlagten Druckkammer und einem Gegenhalter, gekennzeichnet dadurch, daß die zu verbindenden Schweißteile (1) auf einer Nahtunterlage, bestehend aus dem Gegenhalter (3) mit auf der Schweißteilseite angebrachten Hohlräumen (12) und mit auf einer Grundplatte (14) fixierten Federn (10) mit Anschlagdornen (11), sowie mit einem gegebenenfalls mit integrierter Heizung (13) versehenen, in Tiefenrichtung gegen die Kraft der Federn (10) bis zu den Anschlagdornen (11) verschiebbaren Längsdorn (4) so angeordnet sind, daß der Längsdorn (4) zwischen den Nahtflanken (2) der Schweißteile (1) bündig hindurchgeführt ist, und daß auf den zu verbindenden Schweißteilen (1) eine Druckkammer (5) zur Aufnahme des Zusatzwerkstoffes (8) mit Hohlräumen zum Nahtformen (6) und einer extern auf geeignete Weise betätigten Druckstempeleinrichtung (9) angebracht ist. · .2. Arrangement for carrying out the method according to item 1 with a filler material receiving, punch-loaded pressure chamber and a counter-holder, characterized in that the weld parts to be joined (1) on a seam pad, consisting of the anvil (3) mounted on the welding part side cavities (12) and with on a base plate (14) fixed springs (10) with stop pins (11), as well as with an optionally provided with integrated heater (13), in the depth direction against the force of the springs (10) to the stop pins (11 ) are arranged so that the longitudinal mandrel (4) between the seam flanks (2) of the welded parts (1) is flush, and in that on the welded parts (1) a pressure chamber (5) for receiving the filler material (8) with seam forming cavities (6) and externally suitably actuated plunger means (9). ·. 3. Anordnung nach Punkt 2, gekennzeichnet dadurch, daß die auf den zu verbindenden Schweißteilen (1) aufsitzende Öffnung der Druckkammer (5) hinsichtlich ihrer Länge der zu schweißenden Nahtlänge oder eines Nahtabschnittes und hinsichtlich ihrer Breite der Fugenbreite und der durch Erhitzen auf Schweißtemperatur plastizierten Bereiche der Fugenflanken entspricht.3. Arrangement according to item 2, characterized in that the on the welded parts to be joined (1) seated opening of the pressure chamber (5) in terms of their length of weld seam length or a seam portion and in terms of their width of the joint width and plasticized by heating to welding temperature Areas of the joint edges corresponds. 4. Anordnung nach Punkt 2 und 3, gekennzeichnet dadurch, daß das freie Volumen der Druckkammer (5) größer oder gleich dem Volumen der auszufüllenden Fugen, einschließlich der erforderlichen Nahtüberhöhungen ist.4. Arrangement according to item 2 and 3, characterized in that the free volume of the pressure chamber (5) is greater than or equal to the volume of the gaps to be filled, including the required seam elevations. 5. Anordnung nach den Punkten 2 bis 4, gekennzeichnet dadurch, daß der innerhalb der Druckkammer (5) verschiebbare Teil des Druckstempels (9) in Länge und Breite den Innenmaßen der Druckkammer (5) entspricht, und daß seine untere Fläche so gestaltet ist, daß sie zusammen mit den Begrenzungsflächen der Hohlräume (6) eine Negativform der erforderlichen, oberen Nahtüberhöhung (äußeren Nahtkontur) darstellt.5. Arrangement according to points 2 to 4, characterized in that within the pressure chamber (5) displaceable part of the plunger (9) corresponds in length and width to the inner dimensions of the pressure chamber (5), and that its lower surface is designed that it together with the boundary surfaces of the cavities (6) represents a negative mold of the required upper seam superelevation (outer seam contour). 6. Anordnung nach den Punkten 2 bis 5, gekennzeichnet dadurch, daß die im Gegenhalter (3) angebrachten Federn (10) so beschaffen sind, daß die den Werkstoffen und Abmessungen der jeweiligen Fügeteile sowie den Schweißbedingungen gemäße, auf den gegebenenfalls elektrisch beheizbaren Längsdorn (4) wirkende Federkraft derjenigen Kraft entspricht, welche die durch Erhitzen auf Schweißtemperatur plastizierten Bereiche der Fugenflanken dem beim Verschieben des6. Arrangement according to the points 2 to 5, characterized in that in the counter-holder (3) mounted springs (10) are such that the materials and dimensions of the respective parts to be joined and the welding conditions, on the optionally electrically heated longitudinal mandrel ( 4) acting spring force of that force corresponds to the plasticized by heating to welding temperature areas of the joint flanks that when moving the - Druckstempels (9) in der Druckkammer (5) stattfindenden Fließen von in ihrem freien Volumen befindlichen, plastizierten Zusatzwerkstoff (8) entgegensetzen.- Pressure plunger (9) in the pressure chamber (5) taking place flow of located in their free volume, plasticized filler material (8) oppose.
DD85283059A 1985-11-21 1985-11-21 METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS DD242779A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DD85283059A DD242779A1 (en) 1985-11-21 1985-11-21 METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD85283059A DD242779A1 (en) 1985-11-21 1985-11-21 METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS

Publications (1)

Publication Number Publication Date
DD242779A1 true DD242779A1 (en) 1987-02-11

Family

ID=5573225

Family Applications (1)

Application Number Title Priority Date Filing Date
DD85283059A DD242779A1 (en) 1985-11-21 1985-11-21 METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS

Country Status (1)

Country Link
DD (1) DD242779A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029491A1 (en) * 1997-12-09 1999-06-17 Henkel Kommanditgessellschaft Auf Aktien Method for gluing plastic objects with a hot-melt adhesive
RU2664669C1 (en) * 2017-05-25 2018-08-21 Сергей Вячеславович Бригида Method of plastic construction elements repair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029491A1 (en) * 1997-12-09 1999-06-17 Henkel Kommanditgessellschaft Auf Aktien Method for gluing plastic objects with a hot-melt adhesive
RU2664669C1 (en) * 2017-05-25 2018-08-21 Сергей Вячеславович Бригида Method of plastic construction elements repair

Similar Documents

Publication Publication Date Title
DE69838760T2 (en) DEVICE FOR FRICTION WELDING
DE10011593B4 (en) Method and apparatus for producing a metallic construction with overlapping welded joint areas
DE2410055C3 (en) Method and device for welding strip material by means of ultrasound
DE1479681A1 (en) Process for butt welding thermoplastic workpieces
EP0020915B1 (en) Process and device for the seamless joining together of thermoplastic, hollow sections
WO2017167964A1 (en) Friction stir welding method, pin, and machining device for connecting components made of different materials, and corresponding welded connection
DE202006009569U1 (en) Moulding unit for foam particle mouldings, comprises a mould and a foaming chamber whose volume can be altered
DE102011108026B4 (en) Process for the production of plastic containers
DE4232161A1 (en) Process for producing a hollow body
DE1454966A1 (en) Method and device for the production of hollow bodies from thermoplastics in the blow molding process
DE2549571C3 (en) Method and device for connecting molded articles made of polytetrafluoroethylene
DE19512089C1 (en) Method for connecting deformable sheet-metal components, preferably thin sheets, by soldering
DD242779A1 (en) METHOD AND ARRANGEMENT FOR WELDING THERMOPLASTIC MATERIALS
EP1382433A1 (en) Process for seaming plastic parts with a laser beam
DE7425376U (en) Device for welding molded parts, profiles or the like made of thermoplastics
DE102013223166A1 (en) Sonotrode for ultrasonic welding, ultrasonic welding machine, ultrasonic welding process and welded joint
EP1867462B1 (en) Distance welding
EP0785036A1 (en) Method and apparatus for forming profiled hollow workpieces
DE4206583C2 (en) Method and device for connecting two themoplastic components
DE4340381A1 (en) Thermal forming and locking into shape of edge of thermoplastic board container
DE19741688A1 (en) Heated welding tool for joining overlapping plastic strips or sheets used in waste tip construction
DE2205963C3 (en) Process for arc welding under protective gas
DE2805545A1 (en) METHOD AND DEVICE FOR PRESSURE WELDING ONE OR MORE PIPES TO A PLATE IN ONE WORK
DE806307C (en) Process for electrical resistance welding of thin-walled pipes
DE2015214A1 (en) Simultaneous cutting and welding of - several thermoplastic film layers

Legal Events

Date Code Title Description
ENJ Ceased due to non-payment of renewal fee