WO1998038005A1 - Procede de fabrication d'electrodes de soudage filiformes realisees en metaux et/ou alliages, et electrode de soudage filiforme - Google Patents

Procede de fabrication d'electrodes de soudage filiformes realisees en metaux et/ou alliages, et electrode de soudage filiforme Download PDF

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Publication number
WO1998038005A1
WO1998038005A1 PCT/EP1998/000885 EP9800885W WO9838005A1 WO 1998038005 A1 WO1998038005 A1 WO 1998038005A1 EP 9800885 W EP9800885 W EP 9800885W WO 9838005 A1 WO9838005 A1 WO 9838005A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
core
tube
alloys
welding
Prior art date
Application number
PCT/EP1998/000885
Other languages
German (de)
English (en)
Inventor
Volker Müller
Hans Sommer
Ulrich Finger
Original Assignee
C.M.T.M. Dr. Müller Verfahrenstechnik Gmbh
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
Priority claimed from DE19712817A external-priority patent/DE19712817C2/de
Application filed by C.M.T.M. Dr. Müller Verfahrenstechnik Gmbh filed Critical C.M.T.M. Dr. Müller Verfahrenstechnik Gmbh
Priority to EP98910686A priority Critical patent/EP0964769A1/fr
Publication of WO1998038005A1 publication Critical patent/WO1998038005A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/302—Cu as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
    • B23K35/0261—Rods, electrodes, wires
    • B23K35/0283—Rods, electrodes, wires multi-cored; multiple

Definitions

  • the invention relates to a method for producing wire-shaped welding electrodes consisting of metals and / or alloys, and to a wire-shaped welding electrode produced by such a method.
  • DE 31 28 640 AI shows a welding wire for use as an electrode, which consists of several individual wires twisted together.
  • Single wires contain different metallic components or materials.
  • a core wire can be provided, around which the individual wires are wound helically.
  • Nickel or cobalt-based alloys DE 35 42 663 AI describes a filler metal and a process for its production in which inert gas atomized powder is poured into a seamless tube and then the powder is compacted by pulling, thereby further including the enclosed one Gas quantity should be reduced.
  • the method for producing the wire-shaped welding electrode uses a layered composite wire, which has a closed outer surface.
  • the laminated wire is produced by first continuously forming a metallic, brightly cleaned strip into a tube and welding it by a conventional welding process without a filler metal. TIG, plasma, induction or laser welding can be used as the welding process. Before welding, the pretreated, bare metal core is continuously introduced into the pipe, which has not yet been completely finished, this core consisting of one or more compact wires and / or one
  • Laminated wire can consist of several metals or alloys.
  • the sheath and core are mechanically plated to form the composite wire.
  • the composite wire thus produced can then be drawn to the required final dimensions in a conventional manner.
  • a mechanically plated layered composite material or layered composite wire is formed, which can be optimized with regard to the materials of the core and jacket with regard to the processability and the desired welding applications.
  • the core is provided with at least one longitudinal groove which can be formed by rolling in, each longitudinal groove serving to accommodate an insert wire.
  • Core and insert wire materials Lines can have different properties and / or different material compositions.
  • the longitudinal groove in the core essentially has a width which corresponds to the diameter of the insert wire.
  • the depth of the longitudinal groove is in a range from 0.7 to 1.0 times the diameter of the insert wire.
  • the core described above with a longitudinal groove and insert wire can be provided with an inner sheath or an inner sheath, which is then surrounded by the outer sheath, the outer sheath forming the above-mentioned welded tube with an outer closed surface.
  • the desired cladding is carried out by connecting the insert wire and the longitudinal groove core as well as the outer and inner sheath and core.
  • the core can be prefabricated as a composite wire with an open or closed outer surface that forms the inner shell, for this purpose a core wire made of a first metal or a core with a longitudinal groove and insert wire made of different materials with a sheath that forms the inner shell , be surrounded.
  • the inner shell is made of a second metal.
  • the inner jacket can in turn be formed from a prefabricated, multi-layer plated band.
  • the wire-shaped welding electrode made of metals and / or alloys according to the invention thus represents a laminated wire with an outer sheath made of ductile material closed by welding and a core which can be formed in the inside of the sheath.
  • the outer sheath preferably consists of copper or copper alloys , wherein the core is a composite material that can be produced by the above method.
  • the alloying elements required for the overall composition are either in the base material is alloyed (e.g. nickel, tin or manganese in copper) or integrated as individual components (e.g. aluminum or iron).
  • the core can be constructed according to the invention as a composite wire which, for example, consists of a sheath made of aluminum (aluminum alloy) and a core which, in addition to copper, contains further alloy elements such as Fe, Ni, Mn, Sn etc.
  • the Al sheath of the composite wire used as the core is formed from tape, the tape edges either being welded or remaining unwelded. It is formed by either wrapping the tape spirally around the core or by profiling it into a tube with a longitudinal seam. Since the alloying of copper with Fe contents greater than 2 mass percent is practically no longer possible, an iron wire (steel wire) is integrated into the core in these cases.
  • the electrodes consist of different material components that are built up as a composite wire with a closed outer surface.
  • the composite wire contains an electrically highly conductive and pullable closed outer sheath and a good cold-formable
  • composition and structure of the sheath and core are selected so that the mechanical properties required in the manufacture of the wire-shaped welding filler, on the one hand, and optimal properties in the application and the desired properties of the alloy after melting, on the other hand, are ensured.
  • the decisive advantage over the prior art is that the outer jacket of the wire-shaped welding electrode is closed, so that no lubricant can get into the individual material components or the gaps between them during subsequent pulling, so that a high degree of uniformity is achieved and the inclusion of gases is completely avoidable. Due to the mechanical plating of the components, the laminated wire behaves like a compact, quasi-monolithic material during further processing, particularly by drawing and / or rolling.
  • the invention will be explained in more detail below with the aid of exemplary embodiments and with the aid of figures.
  • FIG. 1 shows a cross section through the core introduced into the jacket welded as a tube before plating
  • FIG. 3 shows a cross section through the wire-shaped welding electrode with a core, unwelded inner and welded outer jacket after the plating
  • 4a and 4b a core cross section with a longitudinal groove before and after inserting an insert wire
  • Fig. 5 shows a cross section through a wire-shaped welding electrode with insert wire and unwelded inner and welded outer jacket after plating and
  • Cladding made of a clad composite material before and after wrapping with a welded outer sheath.
  • Alloys with at least 70% by mass of copper, 5 to 18% by mass of aluminum and other alloying elements such as Fe, Ni, Mn and Sn are of essential technical importance in welding technology. so-called aluminum composite bronze. Due to their mechanical properties, these find an increasingly broad field of application. With increasing aluminum content, however, the cold formability of these alloys. The production of wire from such an alloy by drawing is then practically no longer possible. For this reason, according to the exemplary embodiment, the welding electrode for aluminum multi-material bronze with higher AI contents is constructed from different material components in such a way that, on the one hand, it is cold-formable and, on the other hand, the required alloy compositions result when the electrodes are melted.
  • the individual components are selected and combined according to the required processing and usage properties.
  • the aluminum bronze welding electrodes are produced as composite wires in that, as shown in FIGS. 1 and 2, a core 2 is sheathed with copper or a copper alloy to form a jacket 1.
  • the jacket 1 guarantees good ductility with optimal electrical conductivity and a low contact resistance.
  • the core itself can be a composite (e.g. 3 and 4 in Fig. 3).
  • the alloying elements are either alloyed into the base material, e.g. nickel, tin or manganese in copper, or quasi mechanically integrated as individual components, e.g. aluminum or iron.
  • the core itself as shown in FIG. 3, can be constructed as a composite wire which contains, for example, a core material 4 which, in addition to copper, has further alloy elements such as Fe, Ni, Mn or Sn.
  • This core material 4 is then surrounded by an inner jacket 3 made of aluminum or an aluminum alloy.
  • the aluminum sheath 3 of the composite wire used as the core is formed from a strip, the strip edges either being welded or remaining unwelded.
  • the jacket 3 is formed by either winding the tape spirally around the core 4 or profiling it into a tube with a longitudinal seam.
  • FIG. 4a shows the design of the longitudinal groove 9, with FIG. 4b then showing the state after the insertion wire 5 has been received in the longitudinal groove 9 of the core 6.
  • composition of the jacket 1 and the structure of the composition of the core 2 depend in each case on the desired alloy composition. In this way, a plurality of insertion wires 5 can also be molded into the core wire 6.
  • the core 8 can, as shown in FIGS. 6a and 6b, be encased by a plurality of cladding layers 7.
  • the multilayer jacket 7 of the core 8 is formed in this case by forming a previously plated band.
  • aluminum bronze welding electrodes with a composition of 14 to 15 mass percent aluminum, 2 mass percent manganese, 1.5 mass percent iron, 2.5 mass percent nickel and the rest copper are assumed.
  • the outer welded sheath 1 with a volume fraction of 24% and the core 4 with a volume fraction of 39.3 to 41.2% consist of a copper alloy with 2.35 mass percent manganese, 1.7 mass percent iron and 2.94 mass percent nickel.
  • a Aluminum jacket 3 with an open longitudinal seam, which has a volume fraction of 34.8 to 36.7%.
  • the welding wire shown in FIG. 5 represents an aluminum bronze e-welding electrode with a composition of 14 to 15 percent by mass aluminum, 3 to 5 percent by weight iron and a remainder copper.
  • a core wire 6 is used, which consists of copper, into which the longitudinal groove 9 is rolled.
  • the width of the longitudinal groove is approximately equal to the diameter of the iron insert wire 5, the depth of the longitudinal groove 9 corresponding approximately to 0.9 times the diameter of the insert wire 5.
  • the insertion wire 5 is then rolled into the core 6 in a form-fitting manner.
  • the copper core wire 6 has a volume fraction of 35 to 39%, the iron wire 2.5 to 4.3 volume percent.
  • the aluminum jacket 3 (FIG. 5) with an open longitudinal seam and a volume fraction of 34.8 to 36.7 volume percent.
  • the longitudinally welded, closed outer jacket 1 consists of copper and has a volume fraction of 24 volume percent.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

L'invention concerne un procédé de fabrication d'électrodes de soudage filiformes réalisées en métaux et/ou alliages et une électrode de soudage fabriquée selon ce procédé. Selon l'invention, on part d'un fil composite comprenant une gaine extérieure fermée, bonne conductrice et extensible, et une âme parfaitement adaptée au façonnage à froid. La gaine est constituée d'une bande métallique nettoyée qui prend, de façon continue, la forme d'un tuyau par enroulement autour de l'âme. La soudure longitudinale restante est fermée par un procédé de soudage usuel sans matériau d'apport. L'âme comprend au moins un fil compact (5, 6) et/ou un fil composite (3, 6) qui contient plusieurs métaux ou alliages sous forme de couches. Lors de l'étirage, la gaine (1) et l'âme (3, 5, 6) sont assemblés pour former un fil composite stratifié plaqué mécaniquement. Le plaquage mécanique des composants permet au fil composite stratifié de se comporter comme un matériau compacte lors du traitement ultérieur.
PCT/EP1998/000885 1997-02-28 1998-02-17 Procede de fabrication d'electrodes de soudage filiformes realisees en metaux et/ou alliages, et electrode de soudage filiforme WO1998038005A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98910686A EP0964769A1 (fr) 1997-02-28 1998-02-17 Procede de fabrication d'electrodes de soudage filiformes realisees en metaux et/ou alliages, et electrode de soudage filiforme

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19708202 1997-02-28
DE19708202.5 1997-02-28
DE19712817.3 1997-03-26
DE19712817A DE19712817C2 (de) 1997-02-28 1997-03-26 Verfahren zur Herstellung von drahtförmigen, aus Metallen und/oder Legierungen bestehenden Schweißelektroden sowie drahtförmige Schweißelektrode

Publications (1)

Publication Number Publication Date
WO1998038005A1 true WO1998038005A1 (fr) 1998-09-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/000885 WO1998038005A1 (fr) 1997-02-28 1998-02-17 Procede de fabrication d'electrodes de soudage filiformes realisees en metaux et/ou alliages, et electrode de soudage filiforme

Country Status (2)

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EP (1) EP0964769A1 (fr)
WO (1) WO1998038005A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873464A (zh) * 2012-10-22 2013-01-16 江苏科技大学 一种具有中间绝缘层的焊丝

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359738A1 (de) * 1973-11-30 1975-06-05 Messer Griesheim Gmbh Verfahren zur herstellung einer elektrode aus unterschiedlichen metallen und/oder legierungen
EP0015746A1 (fr) * 1979-03-13 1980-09-17 N.V. Bekaert S.A. Electrode de soudage et procédé pour sa fabrication
DE3128640A1 (de) * 1980-07-30 1982-05-27 Matsumoto Kikai Co., Ltd., Yao, Osaka Schweissdraht oder schweisselektrode zum schweissen
WO1986003716A1 (fr) * 1984-12-20 1986-07-03 Alloy Rods Corporation Metaux d'apport a noyau a fil et methode de fabrication de ces metaux
DE3542663A1 (de) * 1985-12-03 1987-06-04 Boehler Ag Schweisszusatzwerkstoff und verfahren zur herstellung desselben
JPH01154895A (ja) * 1987-12-09 1989-06-16 Kobe Steel Ltd アーク溶接用シームレスフラックス入りワイヤ及びその製造方法
DE19523400A1 (de) * 1995-06-28 1997-01-02 Castolin Sa Verfahren zum Herstellen eines Kerndrahtes für Schweißelektroden sowie Elektroden-Kerndraht

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2359738A1 (de) * 1973-11-30 1975-06-05 Messer Griesheim Gmbh Verfahren zur herstellung einer elektrode aus unterschiedlichen metallen und/oder legierungen
EP0015746A1 (fr) * 1979-03-13 1980-09-17 N.V. Bekaert S.A. Electrode de soudage et procédé pour sa fabrication
DE3128640A1 (de) * 1980-07-30 1982-05-27 Matsumoto Kikai Co., Ltd., Yao, Osaka Schweissdraht oder schweisselektrode zum schweissen
WO1986003716A1 (fr) * 1984-12-20 1986-07-03 Alloy Rods Corporation Metaux d'apport a noyau a fil et methode de fabrication de ces metaux
DE3542663A1 (de) * 1985-12-03 1987-06-04 Boehler Ag Schweisszusatzwerkstoff und verfahren zur herstellung desselben
JPH01154895A (ja) * 1987-12-09 1989-06-16 Kobe Steel Ltd アーク溶接用シームレスフラックス入りワイヤ及びその製造方法
DE19523400A1 (de) * 1995-06-28 1997-01-02 Castolin Sa Verfahren zum Herstellen eines Kerndrahtes für Schweißelektroden sowie Elektroden-Kerndraht

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 418 (M - 871) 18 September 1989 (1989-09-18) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873464A (zh) * 2012-10-22 2013-01-16 江苏科技大学 一种具有中间绝缘层的焊丝

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Publication number Publication date
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