DE575000C - Process for the production of a chilled cast alloy - Google Patents

Process for the production of a chilled cast alloy

Info

Publication number
DE575000C
DE575000C DEA59865D DEA0059865D DE575000C DE 575000 C DE575000 C DE 575000C DE A59865 D DEA59865 D DE A59865D DE A0059865 D DEA0059865 D DE A0059865D DE 575000 C DE575000 C DE 575000C
Authority
DE
Germany
Prior art keywords
production
chilled cast
cast alloy
iron
chilled
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
DEA59865D
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.)
KARL ARNDS
Original Assignee
KARL ARNDS
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 KARL ARNDS filed Critical KARL ARNDS
Priority to DEA59865D priority Critical patent/DE575000C/en
Application granted granted Critical
Publication of DE575000C publication Critical patent/DE575000C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

Verfahren zur Herstellung einer Hartgußlegierung Ziehwerkzeuge werden vielfach aus Hartguß hergestellt, der aus einer Legierung von kalt erblasenem Siegerländer Roheisen, Stahlschrott, Gußtrichter usw. besteht, die so zusammengesetzt ist, daß sie 3 bis 40/, gebundenen Kohlenstoff, 0,5 bis i % Silicium, i bis 45 °% Mangan, etwa 0,07 °!o Schwefel und 0,3 °jo Phosphor enthält. Werkzeuge aus solchen Hartgaßlegierungen haben infolge der Sprödigkeit des Materials den Nachteil, daß sie leicht springen oder rissig werden und verhältnismäßig schnell verschleißen.Process for the production of a chilled cast alloy Drawing tools are often made of chilled cast iron, which consists of an alloy of cold-blown Siegerland pig iron, steel scrap, casting funnels, etc., which is composed in such a way that they contain 3 to 40 % of bonded carbon, 0.5 to 1% Silicon, 1 to 45% manganese, about 0.07 % sulfur and 0.3 % phosphorus. Tools made of such hard gas alloys have the disadvantage, due to the brittleness of the material, that they crack or crack easily and wear out relatively quickly.

Es ist bekannt, daß Eisenschwamm stahlveredelnd wirkt. Doch hat sich gezeigt, daß, wenn man gemäß der Erfindung unter entsprechender Reduzierung der bisherigen Bestandteile der bekannten Hartgußlegierung dieser mindestens 2ö % Eisenschwamm ziisetzt, das Material ein sehr feinkörniges Gefüge von hoher Festigkeit erhält und seine Sprödigkeit vollkommen verliert. Die aus einer solchen Hartgußlegierung hergestellten Werkzeuge besitzen daher eine größere Widerstandsfähigkeit und somit eine längere Lebensdauer gegenüber den Werkzeugen aus den bekannten Hartgußlegierungen.It is known that sponge iron has a steel finishing effect. However, it has been shown that if at least 20% sponge iron is added according to the invention with a corresponding reduction in the previous constituents of the known chilled cast alloy, the material acquires a very fine-grain structure of high strength and completely loses its brittleness. The tools made from such a chilled cast alloy therefore have a greater resistance and thus a longer service life compared to the tools made from the known chilled cast alloys.

Der Einsatz kann beispielsweise wie folgt zusammengesetzt sein: 45 °/o Eisenschwamm, 30 °% Stahlschrott, i o % kalt erblasenes Siegerländer Roheisen mit über 5 °% Mangangehalt, io °/o Spiegeleisen mit io bis 12 '/p Mangangehalt, o,5 °/o Ferromangan, o,5 °% Ferrosiliaium, 4 % Carburit - in Blockform geglühte Mischung von je zur Hälfte Kohlenstoff enthaltende Abfälle (Koks, Holzkohle, Kohlenstiftbruch usw.) und Eisen- und Stahlspänen.The insert can be composed as follows, for example: 45 % Sponge iron, 30% scrap steel, 10% cold-blown Siegerland pig iron with more than 5% manganese content, 10% fried iron with 10 to 12% manganese content, 0.5% ferromanganese, 0.5% ferrosilium, 4% carburite - annealed in block form Mixture of waste containing half carbon each (coke, charcoal, broken coal pin etc.) and iron and steel chips.

Claims (1)

PATRNTANSPRUCIi: Verfahren zur Herstellung einer Hartgußlegierung mit 2 bis 3 °/o gebundenem Kohlenstoff bis o,5 °% Silicium, 1,5 bis 2,5 °/o Mangan, o,i °% Phosphor, 0,03 °/o Schwefel zur Herstellung von Werkzeugen, insbesondere zum Ziehen von Hohlkörpern, Stangen o. dgl., dadurch gekennzeichnet, da.ß mindestens -2O% der Gattierung von Eisenschwamm gebildet werden.PATRNTANSPRUCIi: Process for the production of a chilled cast alloy with 2 to 3% bonded carbon, up to 0.5% silicon, 1.5 to 2.5% manganese, 0.1% phosphorus, 0.03% sulfur for the production of tools, in particular for drawing hollow bodies, rods or the like, characterized in that at least -2O% of the charge is made up of sponge iron.
DEA59865D 1929-12-05 1929-12-05 Process for the production of a chilled cast alloy Expired DE575000C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA59865D DE575000C (en) 1929-12-05 1929-12-05 Process for the production of a chilled cast alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA59865D DE575000C (en) 1929-12-05 1929-12-05 Process for the production of a chilled cast alloy

Publications (1)

Publication Number Publication Date
DE575000C true DE575000C (en) 1933-09-13

Family

ID=6942075

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA59865D Expired DE575000C (en) 1929-12-05 1929-12-05 Process for the production of a chilled cast alloy

Country Status (1)

Country Link
DE (1) DE575000C (en)

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