DE2303664B1 - Aluminium alloy sonotrode - chemically coated with nickel - Google Patents

Aluminium alloy sonotrode - chemically coated with nickel

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Publication number
DE2303664B1
DE2303664B1 DE19732303664 DE2303664A DE2303664B1 DE 2303664 B1 DE2303664 B1 DE 2303664B1 DE 19732303664 DE19732303664 DE 19732303664 DE 2303664 A DE2303664 A DE 2303664A DE 2303664 B1 DE2303664 B1 DE 2303664B1
Authority
DE
Germany
Prior art keywords
sonotrode
nickel
aluminium alloy
sonotrodes
chemically coated
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.)
Pending
Application number
DE19732303664
Other languages
German (de)
Inventor
Juergen Fichtner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19732303664 priority Critical patent/DE2303664B1/en
Publication of DE2303664B1 publication Critical patent/DE2303664B1/en
Pending 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
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C66/006—Preventing damaging, e.g. of the parts to be joined
    • B29C66/0062—Preventing damaging, e.g. of the parts to be joined of the joining tool, e.g. avoiding wear of 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/70—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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

At least the work surface of the sonotrode is plated with a chemically applied coat of nickel. Pref. the nickel layer contains boron and is tempered after plating. The device is used for the ultrasonic welding of plastic esp.: glass fibre reinforced plastic.

Description

Patentansprüche: 1. Sonotrode, insbesondere aus Aluminiumlegierungen, für die Ultraschallbearbeitung von Kunststoffen, dadurch gekennzeichnet, daß die Sonotrode (1) zumindest an der Arbeitsfläche (3) eine chemisch aufgetragene Schicht (4) aufweist, die im wesentlichen aus Nickel besteht. Claims: 1. Sonotrode, in particular made of aluminum alloys, for the ultrasonic processing of plastics, characterized in that the Sonotrode (1) has a chemically applied layer at least on the work surface (3) (4), which consists essentially of nickel.

2. Sonotrode nach Anspruch 1, dadurch gekennzeichnet, daß die chemisch aufgetragene Nickelschicht (4) Bor enthält. 2. Sonotrode according to claim 1, characterized in that the chemically applied nickel layer (4) contains boron.

3. Sonotrode nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die chemisch aufgetragene Schicht (4) nachgehärtet, d. h. getempert ist. 3. Sonotrode according to claim 1 or 2, characterized in that the chemically applied layer (4) is post-cured, d. H. is tempered.

Die Erfindung bezieht sich auf eine Sonotrode, insbesondere aus einer Aluminiumlegierung, für die U1-traschallbearbeitung von Kunststoffen. Zur Herstellung von Sonotroden für die Ultraschallbearbeitung von Kunststoffen kommen die verschiedensten Materialien zur Anwendung, wie z. B. Titanlegierungen, Stahl und Aluminiumlegierungen. Von diesen Materialien lassen sich Aluminiumlegierungen besonders leicht bearbeiten. Von den Aluminiumlegierungen sind Legierungen mit Aluminium, Kupfer und Magnesium und gegebenenfalls auch noch Blei besonders bevorzugt. The invention relates to a sonotrode, in particular from a Aluminum alloy, for U1 ultrasonic processing of plastics. For the production There are many different types of sonotrodes for the ultrasonic processing of plastics Materials for use, such as B. titanium alloys, steel and aluminum alloys. Aluminum alloys are particularly easy to process from these materials. Of the aluminum alloys, there are alloys with aluminum, copper and magnesium and lead, if appropriate, is also particularly preferred.

Die meisten leicht bearbeitbaren Materialien weisen jedoch den Nachteil einer geringen Verschleißfest gleit aur, SO daß die daraus gefertigten Sonotroden bei der Bearbeitung von Kunststoffen und insbesondere von glasfaserverstärkten Kunststoffen verhältnismäßig rasch verschleißen. Dies gilt auch für Duraluminlegierung. Aus diesem Grunde werden Sonotroden aus Aluminiumlegierungen häufig nur als Versuchssonotroden verwendet. Dies auch schon deshalb, weil Sonotroden aus Aluminiumlegierungen auf den zu bearbeitenden Kunststoffen schwarze Flecken hinterlassen, die auf den Abrieb der Sonotrode zurückzuführen sind. Most easily machinable materials, however, have the disadvantage a low wear resistance glides so that the sonotrodes made from it in the processing of plastics and in particular of glass fiber reinforced plastics wear out relatively quickly. This also applies to duralumin alloy. For this Basically, sonotrodes made of aluminum alloys are often only used as test sonotrodes used. This is also because sonotrodes are made of aluminum alloys the plastics to be processed leave black stains on the abrasion the sonotrode.

Zur Vermeidung dieser Nachteile hat man bereits versucht, Sonotroden aus Duraluminlegierungen zu anodisieren bzw. eloxieren. Hierdurch wird an der Oberfläche der Sonotrode eine dünne Aluminiumhydroxidschicht gebildet, die zwar etwas härter und damit etwas verschleißfester als die Duraluminlegierung ist, wodurch aber das Problem nicht grundlegend geändert wird, da nur eine geringfügige Verbesserung erzielbar ist. To avoid these disadvantages, attempts have already been made to use sonotrodes to be anodized or anodized from duralumin alloys. This gets to the surface The sonotrode forms a thin aluminum hydroxide layer, which is a bit harder and is therefore a little more wear-resistant than the duralumin alloy, which makes it Problem is not fundamentally changed, as only a slight improvement can be achieved is.

Es ist auch schon versucht worden, in der Arbeitsfläche der Sonotrode Hartmetalle einzulagern, was jedoch sehr aufwendig ist. Attempts have also been made in the work surface of the sonotrode To store hard metals, which is very expensive.

Aufgabe der Erfindung ist es, eine Sonotrode, insbesondere aus einem leicht bearbeitbaren Werkstoff herzustellen, die eine hohe Verschleißfestigkeit aufweist. The object of the invention is to provide a sonotrode, in particular from a Easily machinable material to produce that has high wear resistance having.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Sonotrode zumindest an der Arbeitsfläche eine chemisch aufgetragene Schicht aufweist, die im wesentlichen aus Nickel besteht. Durch chemisches Vernickeln einer Sonotrode aus einem leicht bearbeitbaren Material wird der Vorteil erzielt, daß einerseits die Bearbeitung der Sonotrode einen geringeren Aufwand darstellt und daß andererseits durch die chemisch aufgetragene, im wesentlichen aus Nikkel bestehende Schicht, die etwa 10 bis 50 llm betragen kann, die Verschleißfestigkeit der Sonotrode wesentlich gesteigert wird. Die hierbei erzielbare Verschleißfestigkeit ist so gut, daß derartige Sonotroden für viele Anwendungsfälle geeigneter sind als die wesentlich kostspieligeren Titansonotroden. Schwarze Flecken an den zu bearbeitenden Kunststoffen treten bei der Verwendung von in dieser Weise geschützten Sonotroden aus Aluminiumlegierungen nicht mehr auf. Ein wesentlicher Vorteil, der durch das chemische Vernickeln gegenüber galvanischen Verfahren erzielbar ist, besteht darin, daß die chemisch aufgetragene Schicht in ihrer Dicke praktisch konstant ist und sich auch bei komplizierten Formen der Arbeitsfläche der Sonotrode in gleichmäßiger Dicke auftragen läßt, was bei galvanischen Verfahren nicht möglich ist. Dort werden in engen Hohlräumen wesentlich geringere Schichten aufgetragen, als dies bei vorspringenden Kanten der Fall ist. Da bereits eine dünne im wesentlichen aus Nickel bestehende Schicht mit etwa 12 bis 20 ihm eine ausreichende Verschleißfestigkeit erbringt, lassen sich Sonotroden mit verwickelt gestalteten Arbeitsflächen maßhaltig herstellen. According to the invention, this object is achieved in that the sonotrode has a chemically applied layer, at least on the work surface, which consists essentially of nickel. By chemical nickel plating of a sonotrode from an easily machinable material, the advantage is achieved that on the one hand the processing of the sonotrode represents less effort and that on the other hand through the chemically applied layer consisting essentially of nickel, which can be about 10 to 50 .mu.m, the wear resistance of the sonotrode is essential is increased. The wear resistance that can be achieved here is so good that such Sonotrodes are more suitable for many applications than the much more expensive ones Titanium sonotrodes. Black spots appear on the plastics to be processed the use of sonotrodes made of aluminum alloys protected in this way no longer open. A major advantage over chemical nickel plating galvanic process is achievable, consists in that the chemically applied Layer is practically constant in its thickness and even with complicated shapes the working surface of the sonotrode can be applied in a uniform thickness, which is the case with galvanic Procedure is not possible. There, in narrow cavities, there are significantly fewer Layers applied than is the case with protruding edges. There already a thin layer consisting essentially of nickel of about 12 to 20 cm If there is sufficient wear resistance, sonotrodes can also be involved Manufacture designed work surfaces true to size.

Chemisches Vernickeln von Werkstücken ist grundsätzlich bekannt. Die Eigenschaften der aufgetragenen Nickelschicht hängen zum Teil auch von dem angewandten Verfahren ab, da Bestandteile des Bades in die Schicht eingebaut werden. Das Kanigen-Verfahren arbeitet im schwachsauren Bereich mit Hypophosphit, das Nibodur-Verfahren hat als Reduktionsmittel Borwasserstoffverbindungen, das Durni-Coat-Verfahren arbeitet im neutralen Bereich mit Borwasserstoffverbindungen als Reduktionsmittel, das Chemopur-Ni-S-18-Verfahren arbeitet mit Hypophosphit im schwachsauren Bereich und das Niklad-792-Verfahren arbeitet mit Natriumhypophosphit. Chemical nickel plating of workpieces is known in principle. The properties of the applied nickel layer partly also depend on the one used Procedure, as components of the bath are built into the layer. The Kanigen method works in the weakly acidic range with hypophosphite, the Nibodur process has as Reducing agent boron hydrogen compounds, the Durni-Coat process works in neutral area with hydrogen boride compounds as reducing agent, the Chemopur-Ni-S-18 process works with hypophosphite in the weakly acidic range and the Niklad 792 process works with sodium hypophosphite.

Die vernickelten Sonotroden können noch einer Nachbehandlung unterworfen werden, d. h. sie können zur Erzielung einer größeren Härte getempert werden. Besonders harte Schichten werden dann erzielt, wenn Borwasserstoffverbindungen als Reduktionsmittel Bestandteile des Bades bilden, so daß etwa 5 O,f0 Bor in der aufgetragenen Schicht enthalten ist.The nickel-plated sonotrodes can still be subjected to an after-treatment be, d. H. they can be tempered to achieve a greater hardness. Particularly hard layers are achieved when boron hydrogen compounds are used as reducing agents Form components of the bath, so that about 5 O, f0 boron in the applied layer is included.

Borhaltige Nickelsehichten sind besonders verschleißfest.Nickel layers containing boron are particularly wear-resistant.

Die Erfindung ist in der Zeichnung beispielsweise dargestellt, deren einzige Figur einen Schnitt durch eine Sonotrode gemäß der Erfindung zeigt. The invention is illustrated in the drawing, for example, whose single figure shows a section through a sonotrode according to the invention.

Eine Sonotrode 1, die beispielsweise aus einer Aluminiumlegierung besteht, ist an einem Ende mit einer Gewindebohrung 2 versehen, mittels der die Sonotrode an einem Schallkopf einer Ultraschall-Schweiß- und -Bearbeitungsmaschine festschraubbar ist. Die Sonotrode weist an ihrem der Gewindebohrung 2 gegenüberliegenden Ende eine verhältnismäßig zerklüftete Arbeitsfläche 3 auf, die entsprechend der gewünschten Form an der Bearbeitungsstelle des zu bearbeitenden Teils ausgebildet ist. A sonotrode 1, for example made of an aluminum alloy consists is provided at one end with a threaded hole 2, by means of which the Sonotrode on a transducer of an ultrasonic welding and processing machine is screwable. The sonotrode has at its opposite the threaded hole 2 End of a relatively rugged work surface 3, which corresponds to the desired shape formed at the machining point of the part to be machined is.

Im dargestellten Ausführungsbeispiel ist die Sonotrode mit Ausnahme der der Arbeitsfläche 3 gegenüberliegenden Stirnfläche, die an den nicht dargestellten Schallkopf der Ultraschall-Bearbeitungsmaschine angrenzt, mit einer gleichmäßigen Schicht4, die im wesentlichen aus Nickel besteht, versehen. In the illustrated embodiment, the sonotrode is an exception the end face opposite the work surface 3, which is attached to the not shown The ultrasonic processing machine adjoins the transducer, with a uniform Layer 4, which consists essentially of nickel, provided.

Claims (1)

Diese Schicht wird in einem Bad chemisch aufgetragen, wobei die Stirnfläche mit der Gewindebohrung während des Vernickelns mit einem Abdecklack, beispielsweise Epoxidharzlack, versehen ist.This layer is applied chemically in a bath, with the face with the threaded hole during nickel plating with a masking varnish, for example Epoxy resin paint.
DE19732303664 1973-01-25 1973-01-25 Aluminium alloy sonotrode - chemically coated with nickel Pending DE2303664B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732303664 DE2303664B1 (en) 1973-01-25 1973-01-25 Aluminium alloy sonotrode - chemically coated with nickel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732303664 DE2303664B1 (en) 1973-01-25 1973-01-25 Aluminium alloy sonotrode - chemically coated with nickel

Publications (1)

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DE2303664B1 true DE2303664B1 (en) 1973-08-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909660C2 (en) * 1999-01-22 2001-04-26 Sonotronic Nagel Gmbh Coated welding tool and a method for its production
WO2007065951A1 (en) * 2005-12-08 2007-06-14 Nippon Consultants B.V. Sealing device
EP1837161A1 (en) * 2006-03-24 2007-09-26 Nippon Consultants B.V. Sealing Device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909660C2 (en) * 1999-01-22 2001-04-26 Sonotronic Nagel Gmbh Coated welding tool and a method for its production
WO2007065951A1 (en) * 2005-12-08 2007-06-14 Nippon Consultants B.V. Sealing device
EP1837161A1 (en) * 2006-03-24 2007-09-26 Nippon Consultants B.V. Sealing Device

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