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AT137652B - Process for the production of alloys with great hardness, high wear resistance and good cutting force. - Google Patents

Process for the production of alloys with great hardness, high wear resistance and good cutting force.

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Publication number
AT137652B
AT137652B AT137652DA AT137652B AT 137652 B AT137652 B AT 137652B AT 137652D A AT137652D A AT 137652DA AT 137652 B AT137652 B AT 137652B
Authority
AT
Austria
Prior art keywords
alloys
production
wear resistance
cutting force
high wear
Prior art date
Application number
Other languages
German (de)
Original Assignee
Ver Stahlwerke 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 Ver Stahlwerke Ag filed Critical Ver Stahlwerke Ag
Application granted granted Critical
Publication of AT137652B publication Critical patent/AT137652B/en

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Description

  

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  Verfahren zur Herstellung von Legierungen mit grosser Härte, hohem Verschleisswiderstand und guter Schneidkraft. 



   Durch eingehende Versuche wurde nachgewiesen, dass Nickel-Molybdän-Legierungen durch eine besondere thermische Behandlung gehärtet werden können. Erhitzt man Nickellegierungen mit 8-30%   Molybdän   im gegossenen oder gewalzten Zustand auf eine oberhalb etwa 900  C gelegene Temperatur, kühlt sie darauf an der Luft oder durch Eintauchen in Wasser oder Öl hinreichend schnell ab und erhitzt sie schliesslich bei Temperaturen zwischen   400-800  C,   so steigert man die Festigkeitseigenschaften der Legierungen im Verhältnis zu denen vor der thermischen Behandlung sehr erheblich.

   Erhitzt man beispielsweise eine Legierung mit   75%   Nickel und 25% Molybdän auf   11000 C, schreckt   sie in Wasser ab und lässt sie eine Stunde auf 600  C an, so steigt die Härte von 260 Brinelleinheiten im unbehandelten Zustand auf 368 Brinelleinheiten. Gegebenenfalls kann man diesen   vergütbaren   Legierungen noch Zusätze von einem oder mehreren andern Elementen, wie Kupfer, Aluminium, Kobalt, Chrom und Mangan, bis zu   40% hinzufügen. Auch   bei derartigen Legierungen kann man durch eine geeignete thermische Behandlung, wie sie oben angegeben wurde, die Festigkeitseigenschaften erheblich steigern. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung von Legierungen mit grosser Härte, hohem Verschleisswiderstand und guter Schneidkraft, die auch bei höheren Temperaturen erhalten bleiben, aus Nickel-MolybdänLegierungen mit   8-30% Molybdän, dadurch gekennzeichnet,   dass die Legierungen von einer oberhalb etwa 900  C gelegenen Temperatur rasch abgekühlt und anschliessend bei Temperaturen zwischen 400 und 800  C angelassen werden. 

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



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  Process for the production of alloys with great hardness, high wear resistance and good cutting force.



   Extensive tests have shown that nickel-molybdenum alloys can be hardened through a special thermal treatment. If nickel alloys with 8-30% molybdenum are heated in the cast or rolled state to a temperature above about 900 C, they are then cooled sufficiently quickly in the air or by immersion in water or oil and finally heated at temperatures between 400-800 C. , the strength properties of the alloys are increased very considerably compared to those before the thermal treatment.

   For example, if you heat an alloy with 75% nickel and 25% molybdenum to 11000 C, quench it in water and leave it at 600 C for one hour, the hardness increases from 260 Brinelle units in the untreated state to 368 Brinelle units. If necessary, additions of one or more other elements, such as copper, aluminum, cobalt, chromium and manganese, up to 40% can be added to these heat treatable alloys. With such alloys, too, the strength properties can be increased considerably by a suitable thermal treatment, as indicated above.



   PATENT CLAIMS:
1. A process for the production of alloys with great hardness, high wear resistance and good cutting force, which are retained even at higher temperatures, from nickel-molybdenum alloys with 8-30% molybdenum, characterized in that the alloys are from a temperature above about 900 C. cooled quickly and then tempered at temperatures between 400 and 800 C.

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

 

Claims (1)

2. Anwendung des Verfahrens nach Anspruch 1 bei der Vergütung von solchen Nickellegierungen, die neben Molybdän insgesamt bis zu höchstens 40% Zusätze von andern Elementen enthalten, wie Kupfer, Kobalt, Aluminium, Chrom, Mangan. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Application of the method according to claim 1 in the tempering of those nickel alloys which, in addition to molybdenum, contain up to a maximum of 40% additions of other elements, such as copper, cobalt, aluminum, chromium, manganese. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT137652D 1930-07-04 1931-02-28 Process for the production of alloys with great hardness, high wear resistance and good cutting force. AT137652B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE137652X 1930-07-04

Publications (1)

Publication Number Publication Date
AT137652B true AT137652B (en) 1934-05-25

Family

ID=5666937

Family Applications (1)

Application Number Title Priority Date Filing Date
AT137652D AT137652B (en) 1930-07-04 1931-02-28 Process for the production of alloys with great hardness, high wear resistance and good cutting force.

Country Status (1)

Country Link
AT (1) AT137652B (en)

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