DE867684C - Process for the production of copper-coated steel wires - Google Patents
Process for the production of copper-coated steel wiresInfo
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 | ||
DE196739C (en) * |
-
1942
- 1942-05-17 DE DESCH3868D patent/DE867684C/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 | ||
DE196739C (en) * |
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