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DE513738C - Process to achieve dense castings from copper-containing alloys by adding a copper compound - Google Patents

Process to achieve dense castings from copper-containing alloys by adding a copper compound

Info

Publication number
DE513738C
DE513738C DEK89260D DEK0089260D DE513738C DE 513738 C DE513738 C DE 513738C DE K89260 D DEK89260 D DE K89260D DE K0089260 D DEK0089260 D DE K0089260D DE 513738 C DE513738 C DE 513738C
Authority
DE
Germany
Prior art keywords
copper
containing alloys
achieve dense
dense castings
copper compound
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
DEK89260D
Other languages
German (de)
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 DEK89260D priority Critical patent/DE513738C/en
Application granted granted Critical
Publication of DE513738C publication Critical patent/DE513738C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/027—Casting heavy metals with low melting point, i.e. less than 1000 degrees C, e.g. Zn 419 degrees C, Pb 327 degrees C, Sn 232 degrees C

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zur Erzielung dichter Gußstücke aus kupferhaltigen Legierungen durch Zusatz einer Kupferverbindung Gegenstand der Erfindung ist ein Gießverfahren für kupferhaltige Legierungen, wie Rotguß, Messing oder Bronze, welches darin besteht, daß dem geschmolzenen Metall kurz vor dem Vergießen in die Form ein Zusatz hinzugefügt wird, der eine Reinigung des Metalls bewirkt, so daß ein nicht poröser Guß erzielt wird. Durch den Zusatz wird gleichzeitig eine Färbung des Metalls erzielt, so daß z. B. Rotguß ein Aussehen erhält, welches dem des Kupfers gleicht.Process for obtaining dense castings from copper-containing alloys by adding a copper compound The invention relates to a casting process for alloys containing copper, such as gunmetal, brass or bronze, which consists of that an additive is added to the molten metal just before it is poured into the mold which acts to clean the metal so that a non-porous cast is obtained will. By adding a coloration of the metal is achieved at the same time, so that z. B. Gunmetal has an appearance that is similar to that of copper.

Die Erfindung besteht darin, daß dem Metall technisch reines Kupferoxyd zugesetzt wird.The invention consists in that the metal is technically pure copper oxide is added.

Es ist bekannt, zum Raffinieren von Rohkupfer eine Schmelze, welche Sauerstoffverbindungen des Kupfers, z. B. Kupferoxyd, enthält, dem geschmolzenem Kupfer zuzusetzen. Dieses Verfahren ist aber nur im großen im Hüttenbetriebe beim Erschmelzen von Rohkupfer angewendet worden. Aus seiner Brauchbarkeit war nicht zu folgern, daß ein Zusatz von Kupferoxyd beim Gießen kupferhaltiger Gegenstände einen porenfreien Guß ergibt. Auch wird der Erfindung gemäß das Kupferoxyd nicht vor der Vereinigung mit dem Metall geschmolzen, sondern in festem Zustande dem flüssigen Metall in der Gießpfanne zugesetzt.It is known to refine raw copper a smelt, which Oxygen compounds of copper, e.g. B. copper oxide, contains the molten Add copper. However, this process is only used to a large extent in the iron and steel industry Smelting of raw copper has been applied. Out of its usefulness was not to conclude that an addition of copper oxide when casting objects containing copper results in a pore-free cast. According to the invention, the copper oxide is also not used melted before union with the metal, but in the solid state with the liquid Metal added in the ladle.

Das Zusetzen des Kupferoxyds erfolgt kurz vor dem Vergießen des Metalls in die Gußform. Die Menge des zugesetzten Kupferoxyds kann etwa r bis 2 kg auf 5o kg Metall betragen.The copper oxide is added shortly before the metal is poured into the mold. The amount of copper oxide added can be about r to 2 kg per 50 kg of metal.

Claims (1)

PATENTANSPRUCT3: Verfahren zur Erzielung dichter Gußstücke aus kupferhaltigen Legierungen durch Zusatz einer Kupferverbindung, dadurch gekennzeichnet, daß dem flüssigen Metall kurz vor dem Vergießen Kupferoxyd zugesetzt wird.PATENT CLAIM3: Process for achieving dense castings from copper-containing Alloys by adding a copper compound, characterized in that the copper oxide is added to liquid metal shortly before casting.
DEK89260D 1924-04-16 1924-04-16 Process to achieve dense castings from copper-containing alloys by adding a copper compound Expired DE513738C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK89260D DE513738C (en) 1924-04-16 1924-04-16 Process to achieve dense castings from copper-containing alloys by adding a copper compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK89260D DE513738C (en) 1924-04-16 1924-04-16 Process to achieve dense castings from copper-containing alloys by adding a copper compound

Publications (1)

Publication Number Publication Date
DE513738C true DE513738C (en) 1931-01-31

Family

ID=7236468

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK89260D Expired DE513738C (en) 1924-04-16 1924-04-16 Process to achieve dense castings from copper-containing alloys by adding a copper compound

Country Status (1)

Country Link
DE (1) DE513738C (en)

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