AT122775B - Steel alloys for the production of objects hardened in the edge zones by embroidery. - Google Patents

Steel alloys for the production of objects hardened in the edge zones by embroidery.

Info

Publication number
AT122775B
AT122775B AT122775DA AT122775B AT 122775 B AT122775 B AT 122775B AT 122775D A AT122775D A AT 122775DA AT 122775 B AT122775 B AT 122775B
Authority
AT
Austria
Prior art keywords
objects
steel alloys
embroidery
hardened
production
Prior art date
Application number
Other languages
German (de)
Original Assignee
Krupp 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 Krupp Ag filed Critical Krupp Ag
Application granted granted Critical
Publication of AT122775B publication Critical patent/AT122775B/en

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  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Stahllegierungen zur Herstellmg von   in den Randzonen durch Versticken gehärteten   (Gegenständen.   
 EMI1.1 
 einzeln oder in beliebiger Zusammenstellung wahlweise enthalten. Solche Gegenstände nehmen aber, wenn man sie aus den bisher verwendeten Stahllegierungen herstellt, infolge der   zur Ausfiihiung   der Verstickung erforderlichen Erwärmung und der darauf folgenden allmählichen Abkiihung in ihrer   ungehärteten   Kernzone leicht einen Zustand an, den man als   Anlasssprödigkeit bezeichnet   und der sehr   unerwünscht   ist.

   Die Erfindung bezweckt,   Stahllegierungen   zu schaffen, aus denen hergestellte Gegenwände nicht nur beim Versticken in ihren Randzonen besonders grosse Hälte annehmen, sondern sieh auch durch Unempfindlichkeit   gegen Anlasssprödigkeit   sowie durch andere gute Festigkeitseigenschaften 
 EMI1.2 
 erreicht, dass die verwendeten   Stahllegierungen unbedingt 0'5 bis 2% Aluminium und   einen Kohlenstoffgehalt bis 0-6% sowie wahlweise Silizium, Mangan, Nickel, Chrom, Molybdän, Wolfram, Vanadium, Titan oder Zirkon, einzeln oder in   beliebiger Zusammenstellung, im Gesamtbetrage   von   0-5 bis 4%   enthalten. 



   Die Härte der Randzone und die Festigkcitseigenqchaften der Kernzone nehmen ganz besonders vorteilhafte Werte an, wenn die   Gegenstände aus Stahllegierungen mit 0#5 bis 2% Aluminium   und 0-5 bis 3% Chrom hergestellt sind. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Steel alloys for the production of objects hardened in the edge zones by embroidery.
 EMI1.1
 included individually or in any combination. Such objects, however, if they are made from the steel alloys used hitherto, as a result of the heating required to produce the stitching and the subsequent gradual cooling in their unhardened core zone, easily assume a state which is known as temper brittleness and which is very undesirable.

   The aim of the invention is to create steel alloys from which the counter-walls produced not only assume particularly large halves when embroidered in their edge zones, but also through insensitivity to initial brittleness and other good strength properties
 EMI1.2
 achieves that the steel alloys used necessarily have 0'5 to 2% aluminum and a carbon content of up to 0-6% as well as optionally silicon, manganese, nickel, chromium, molybdenum, tungsten, vanadium, titanium or zirconium, individually or in any combination, in total from 0-5 to 4% included.



   The hardness of the edge zone and the strength properties of the core zone take on particularly advantageous values when the objects are made from steel alloys with 0-5 to 2% aluminum and 0-5 to 3% chromium.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT122775D 1925-05-18 1925-05-18 Steel alloys for the production of objects hardened in the edge zones by embroidery. AT122775B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT122775T 1925-05-18

Publications (1)

Publication Number Publication Date
AT122775B true AT122775B (en) 1931-05-11

Family

ID=3633097

Family Applications (1)

Application Number Title Priority Date Filing Date
AT122775D AT122775B (en) 1925-05-18 1925-05-18 Steel alloys for the production of objects hardened in the edge zones by embroidery.

Country Status (1)

Country Link
AT (1) AT122775B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191913B (en) * 1962-02-28 1965-04-29 Philips Nv Lattice brace for electron tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191913B (en) * 1962-02-28 1965-04-29 Philips Nv Lattice brace for electron tubes

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