DE867684C - Process for the production of copper-coated steel wires - Google Patents

Process for the production of copper-coated steel wires

Info

Publication number
DE867684C
DE867684C DESCH3868D DESC003868D DE867684C DE 867684 C DE867684 C DE 867684C DE SCH3868 D DESCH3868 D DE SCH3868D DE SC003868 D DESC003868 D DE SC003868D DE 867684 C DE867684 C DE 867684C
Authority
DE
Germany
Prior art keywords
copper
production
steel wires
coated steel
passed
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.)
Expired
Application number
DESCH3868D
Other languages
German (de)
Inventor
Heinrich Albers
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.)
Schloemann AG
Original Assignee
Schloemann AG
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 Schloemann AG filed Critical Schloemann AG
Priority to DESCH3868D priority Critical patent/DE867684C/en
Application granted granted Critical
Publication of DE867684C publication Critical patent/DE867684C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/22—Making metal-coated products; Making products from two or more metals
    • B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Extrusion Of Metal (AREA)

Description

Verfahren zur Herstellung kupferummantelter Stahldrähte Die bisher üblichen Verfahren zur Herstellung kupferummantelter Stahldrähte, wie sie in der Elektroindustrie neuerdings Verwendung finden, sind umständlich und auch wenig ergiebig, wobei noch der Nachteil beachtlich ist, daß die Kupferummantelung sich leicht von dem Stahldraht stellenweise löst. Um dem Bedürfnis der Erleichterung einer Produktionssteigerung nachzukommen und dabei eine innige Verbindung zwischen Drahtseele und Kupferummantelung zu sichern, schlägt die Erfindung vor, sich der bekannten Rohrstrang" pressen zu bedienen, und zwar in der Weise, daß während der Auspressung des den späteren Kupfermantel bildenden Hohlblockes durch den Dorn der Presse hindurch der Stahldraht geleitet wird, der, zuvor auf Schweißtemperatur erhitzt, .durch neutrales Gas hindurch bis in den Bereich der Matrize geleitet wird. Der Ummantelungsvorgang ist hierbei mit einer Verschweißung der beiden Werkstoffe verknüpft. Der gebrauchsfertige Zustand des auf diese Weise hergestellten Produktes wird dadurch erzielt, daß der kupferummantelte Stahldraht im Anschluß an den Strangpreßprozeß einem Ziehprozeß unterworfen wird. Hierbei wird der Durchmesser auf die gewünschte Größe gebracht, wobei gleichzeitig eine proportionale Dickenabnahme der Kupferummantelung eintritt. Bei der praktischen Ausübung des Verfahrens wird es sich empfehlen, den Stahldraht von einer im Innern eines Glühofens untergebrachten Trommel abzuwickeln, wobei zwischen Ofen und der Einführungsstelle für den Draht in dem Dorn eine mit neutralem Gas gefüllte Leitung vorgesehen ist, wobei natürlich auch Vorsorge getroffen sein muß, im Ofen selbst eine Oxydierung des Stahldrahtes zu vermeiden, wobei ebenfalls das an sich bekannte neutrale Gas Verwendung finden kann.Process for the production of copper-clad steel wires The hitherto common processes for the production of copper-clad steel wires, as described in the The electrical industry have recently been used, are cumbersome and also not very productive, the disadvantage being that the copper cladding easily comes off the steel wire loosens in places. To the need to facilitate an increase in production comply with an intimate connection between the wire core and the copper sheathing To secure, the invention proposes to "press" the known pipe string operate, in such a way that during the extrusion of the later copper jacket The steel wire is passed through the mandrel of the press to form the hollow block which, previously heated to welding temperature, passes through a neutral gas until is passed into the area of the die. The wrapping process is here with a fusion of the two materials. The ready-to-use condition of the product produced in this way is achieved in that the copper-clad Steel wire is subjected to a drawing process following the extrusion process. Here, the diameter is brought to the desired size, at the same time a proportional decrease in thickness of the Copper cladding occurs. When practicing the procedure, it will be advisable to use the steel wire from a drum housed inside an annealing furnace, with between Furnace and the insertion point for the wire in the mandrel one with neutral gas a filled line is provided, whereby, of course, precautions must also be taken, to avoid oxidation of the steel wire in the furnace itself neutral gas known per se can be used.

Erfindungsgem#Iß wird noch der Vorschlag gemacht, die Erhitzung des Stahldrahtes auf Schweißtemperatur elektrisch vorzunehmen. Das kann z. B. in der Form geschehen, daß der Stahldraht selbst für den elektrischen Strom den Widerstand bildet, der ihn zu der gewünschten Erhitzung bringt.According to the invention, the suggestion is made that the heating of the To make steel wire electrically at welding temperature. This can e.g. B. in the Form happen that the steel wire itself has the resistance to the electric current forms, which brings it to the desired heating.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung kupferummantelter Stahldrähte für die Elektroindustrie, dadurch gekennzeichnet, daß bei Verwendung einer Rohrstrangpresse, durch deren Dorn während der Verpressung eines Kupferhohlblockes der Stahldraht hindurchgeführt wird, letzterer zuvor auf Schweißtemperatur gebracht und bis in den Bereich der Preßmatrize durch neutrales Gas hindurchgeleitet wird und daß der durch Preßschweißen kupferummantelte Draht anschließend zwecks Verkleinerung seines Durchmessers einem Ziehprozeß unterworfen wird. Angezogene Druckschriften: Deutsche Patentschriften Nr. 51 188, 196 739.PATENT CLAIM: Process for the production of copper-coated steel wires for the electrical industry, characterized in that when using a pipe extrusion press, the steel wire through its mandrel during the pressing of a hollow copper block is passed through, the latter previously brought to welding temperature and up to in the area of the press die is passed through neutral gas and that the then by pressure welding copper-sheathed wire for the purpose of reducing its size Diameter is subjected to a drawing process. Printed publications: German Patent publications No. 51 188, 196 739.
DESCH3868D 1942-05-17 1942-05-17 Process for the production of copper-coated steel wires Expired DE867684C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH3868D DE867684C (en) 1942-05-17 1942-05-17 Process for the production of copper-coated steel wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH3868D DE867684C (en) 1942-05-17 1942-05-17 Process for the production of copper-coated steel wires

Publications (1)

Publication Number Publication Date
DE867684C true DE867684C (en) 1953-02-19

Family

ID=7423966

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH3868D Expired DE867684C (en) 1942-05-17 1942-05-17 Process for the production of copper-coated steel wires

Country Status (1)

Country Link
DE (1) DE867684C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE196739C (en) *
DE51188C (en) * C. M. PlELSTICKER in London, E. C. Room 186 Souffolk House, Cannon Street Process and apparatus for annealing the metal wire or strip to be rolled by means of an electric arc

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE196739C (en) *
DE51188C (en) * C. M. PlELSTICKER in London, E. C. Room 186 Souffolk House, Cannon Street Process and apparatus for annealing the metal wire or strip to be rolled by means of an electric arc

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