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DE1043368B - Process to improve the carburization of sintered iron bodies - Google Patents

Process to improve the carburization of sintered iron bodies

Info

Publication number
DE1043368B
DE1043368B DET13225A DET0013225A DE1043368B DE 1043368 B DE1043368 B DE 1043368B DE T13225 A DET13225 A DE T13225A DE T0013225 A DET0013225 A DE T0013225A DE 1043368 B DE1043368 B DE 1043368B
Authority
DE
Germany
Prior art keywords
carburization
improve
sintered iron
bodies
iron bodies
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.)
Pending
Application number
DET13225A
Other languages
German (de)
Inventor
Fritz Steffen
Dipl-Phys Dr Helmut Weik
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.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves 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
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DET13225A priority Critical patent/DE1043368B/en
Publication of DE1043368B publication Critical patent/DE1043368B/en
Pending 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
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)

Description

Verfahren zur Verbesserung der Aufkohlung von Eisensinterkörpern Die Erfindung bezieht sich auf ein Verfahren zur schnelleren und gleichmäßigeren Aufkohlung von Eisensinterkörpern.Method for improving the carburization of iron sintered bodies The The invention relates to a method for faster and more uniform carburization of iron sintered bodies.

Es ist bekannt, daß Kupfer, wenn es in geringen :Mengen, mit Einsatzstählen legiert wird, beim Zementieren dieser Stähle in schroffen Mitteln und bei längerer Einsatzdauer und bei größerer Einsatztiefe einen günstigen Einfluß insofern ausübt, als es den Randkohlenstoffgehalt nicht wesentlich über den eutektoiden Gehalt ansteigen läßt, wobei die Eindringtiefe etwas herabgesetzt wird.It is known that copper, when it is in small amounts, with case-hardening steels is alloyed, when cementing these steels in abrupt means and for longer periods Duration of use and with greater depth of operation has a beneficial effect insofar as than the marginal carbon content does not rise significantly above the eutectoid content leaves, whereby the depth of penetration is somewhat reduced.

Bei Eisensinterkörp.ern, die im Gegensatz zum kompakten Gefüge der Einsatzstähle ein poröses Gefüge aufweisen, führt der Zusatz von Kupfer zu einem anderen vorteilhaften Ergebnis. Gemäß der Erfindung wird Eisenpulver, dem vor dem Verpressen. und Sintern bis etwa 2% Kupferpulver beigemischt wird, aufgekohlt. Bei gleicher Aufkohlungsbehandlung von unlegierten und mit Kupfer legierten Eisensinterkörpern haben die letzteren einen höheren Kohlenstoffgehalt; z. B. 0,5% Kohlenstoff bei unlegierten und 0,7% bis 0,90/9 Kohlenstoff bei mit Kupfer legierten Eisensinterkörpern. Dies wirkt sich auf die mechanischen Eigenschaften von Eisensinterkörpern, die einer Wärmebehandlung unterzogen werden sollen, vorteilhaft aus.In sintered iron bodies, which in contrast to the compact structure of the Case-hardening steels have a porous structure, the addition of copper leads to a another beneficial result. According to the invention, iron powder, which before Pressing. and sintering until about 2% copper powder is admixed, carburized. at same carburizing treatment of unalloyed and copper alloyed iron sintered bodies the latter have a higher carbon content; z. B. 0.5% carbon unalloyed and 0.7% to 0.90 / 9 carbon for iron sintered bodies alloyed with copper. This affects the mechanical properties of sintered iron bodies, which one Heat treatment are to be subjected to advantageous.

Claims (1)

PATENTANSPRUCH Verfahren zur schnelleren und gleichmäßigeren Aufkohlung von Ei.semsinterkörpern, dadurch gekennzeichnet, daß dem Eisenpulver vor dem Vergressen und Sintern Kupferpulver in, Mengen bis zu 2%, vorzugsweise 1%, beigemischt wird. In Betracht gezogene Druckschriften: H o u d r e m o n t, Handbuch der S onderstahlkunde, Berlin 1956, S. 1257. PATENT CLAIM A method for faster and more uniform carburization of egg sintered bodies, characterized in that copper powder is added to the iron powder in amounts of up to 2%, preferably 1%, before the grinding and sintering. Publications considered: H oudremont, Handbuch der S onderstahlkunde, Berlin 1956, p. 1257.
DET13225A 1955-11-22 1955-11-22 Process to improve the carburization of sintered iron bodies Pending DE1043368B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET13225A DE1043368B (en) 1955-11-22 1955-11-22 Process to improve the carburization of sintered iron bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET13225A DE1043368B (en) 1955-11-22 1955-11-22 Process to improve the carburization of sintered iron bodies

Publications (1)

Publication Number Publication Date
DE1043368B true DE1043368B (en) 1958-11-13

Family

ID=7547266

Family Applications (1)

Application Number Title Priority Date Filing Date
DET13225A Pending DE1043368B (en) 1955-11-22 1955-11-22 Process to improve the carburization of sintered iron bodies

Country Status (1)

Country Link
DE (1) DE1043368B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170149B (en) * 1959-02-11 1964-05-14 Heinz Schmalz Dr Ing Process for the powder-metallurgical production of roller bearing races from sintered steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170149B (en) * 1959-02-11 1964-05-14 Heinz Schmalz Dr Ing Process for the powder-metallurgical production of roller bearing races from sintered steel

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