AT140192B - Aluminum alloy for pistons. - Google Patents

Aluminum alloy for pistons.

Info

Publication number
AT140192B
AT140192B AT140192DA AT140192B AT 140192 B AT140192 B AT 140192B AT 140192D A AT140192D A AT 140192DA AT 140192 B AT140192 B AT 140192B
Authority
AT
Austria
Prior art keywords
sep
pistons
aluminum alloy
magnesium
alloy
Prior art date
Application number
Other languages
German (de)
Original Assignee
Schmidt Gmbh Karl
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 Schmidt Gmbh Karl filed Critical Schmidt Gmbh Karl
Application granted granted Critical
Publication of AT140192B publication Critical patent/AT140192B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Catalysts (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  AluminiumlegierungfürKolben. 



   Die Erfindung betrifft eine Verbesserung der in dem Patent   Nr. 136576 beschriebenen   Legierung. 



  Es wurden in diesem Patent als neu beansprucht Legierungen des Aluminiums mit einem Gehalt von 15 bis 25% Silizium sowie   0'2   bis   2% Chrom   und   0'6   bis 3% von jedem der Metalle Mangan, Kobalt und Nickel. Wie in diesem Patent weiterhin ausgeführt wurde, können diesen Legierungen gegebenenfalls noch   0'6   bis 3% Antimon zugesetzt werden. 



   Es wurde nun gefunden, dass eine wesentliche Verbesserung dieser Legierung dadurch erreicht 
 EMI1.1 
 sammen mit Kupfer in Mengen von   0'6   bis   50     o   zugesetzt wird. Der Zusatz des Magnesiums erhöht die Festigkeit und die Gleiteigenschaften, so dass die Eignung zur Herstellung von Kolben, insbesondere von   Verbrennungsmaschinen,   verbessert wird. Als Beispiel für die Zusammensetzung der nach diesem Patent hergestellten Legierung seien folgende Zusammensetzungen genannt : 
 EMI1.2 
 
<tb> 
<tb> Si <SEP> 22% <SEP> Chrom <SEP> 0#2% <SEP> Mangan <SEP> 1% <SEP> Nickel <SEP> 1#5%
<tb> Kobalt <SEP> 2% <SEP> Kupfer <SEP> 2#5% <SEP> Magnesium <SEP> 1#3%.
<tb> 
 



   Die Legierungen, die unter Zusatz von   Magnesium   bzw. Magnesium und Kupfer hergestellt sind, zeichnen sich durch verbesserte Zug-und Druckfestigkeit aus und weisen höhere Gleiteigenschaften und bessere Bearbeitbarkeit mit schneidenden Werkzeugen auf, ohne dass die Wärmeleitfähigkeit vermindert wird. Schliesslich zeigen sie auch einen verminderten Wärmeausdehnungskoeffizienten, was gerade für die Herstellung von Kolben besonders wichtig ist. 



   PATENT-ANSPRÜCHE :
1. Aluminiumlegierung für Kolben von Verbrennungskraftmaschinen, Dampfmaschinen usw. mit einem Siliziumgehalt von 15 bis 25% und Metallen der Eisengruppe (Mangan, Chrom, Kobalt, Niekel) gemäss Patent Nr. 136576, dadurch gekennzeichnet, dass die   Legierung   einen weiteren Zusatz an Magnesium in Mengen von   0'05   bis 5% enthält. 
 EMI1.3 
 

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



   <Desc / Clms Page number 1>
 



  Aluminum alloy for pistons.



   The invention relates to an improvement on the alloy described in Patent No. 136576.



  Alloys of aluminum with a content of 15 to 25% silicon and 0'2 to 2% chromium and 0'6 to 3% of each of the metals manganese, cobalt and nickel were claimed as new. As further stated in this patent, 0'6 to 3% antimony can optionally be added to these alloys.



   It has now been found that this alloy achieves a substantial improvement
 EMI1.1
 is added together with copper in amounts of 0.6 to 50 o. The addition of magnesium increases the strength and the sliding properties, so that the suitability for the production of pistons, in particular of internal combustion engines, is improved. The following compositions are mentioned as an example of the composition of the alloy produced according to this patent:
 EMI1.2
 
<tb>
<tb> Si <SEP> 22% <SEP> Chromium <SEP> 0 # 2% <SEP> Manganese <SEP> 1% <SEP> Nickel <SEP> 1 # 5%
<tb> Cobalt <SEP> 2% <SEP> Copper <SEP> 2 # 5% <SEP> Magnesium <SEP> 1 # 3%.
<tb>
 



   The alloys which are produced with the addition of magnesium or magnesium and copper are characterized by improved tensile and compressive strength and have higher sliding properties and better machinability with cutting tools without the thermal conductivity being reduced. Finally, they also show a reduced coefficient of thermal expansion, which is particularly important for the manufacture of pistons.



   PATENT CLAIMS:
1. Aluminum alloy for pistons of internal combustion engines, steam engines, etc. with a silicon content of 15 to 25% and metals of the iron group (manganese, chromium, cobalt, Niekel) according to patent no. 136576, characterized in that the alloy has a further addition of magnesium in Contains amounts of 0'05 to 5%.
 EMI1.3
 

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

 

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT140192D 1929-08-15 1932-07-16 Aluminum alloy for pistons. AT140192B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE334777X 1929-08-15
GB162919X 1931-09-08

Publications (1)

Publication Number Publication Date
AT140192B true AT140192B (en) 1935-01-10

Family

ID=33565827

Family Applications (2)

Application Number Title Priority Date Filing Date
AT136576D AT136576B (en) 1929-08-15 1929-10-25 Aluminum alloy for pistons.
AT140192D AT140192B (en) 1929-08-15 1932-07-16 Aluminum alloy for pistons.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT136576D AT136576B (en) 1929-08-15 1929-10-25 Aluminum alloy for pistons.

Country Status (4)

Country Link
AT (2) AT136576B (en)
CH (1) CH142803A (en)
FR (1) FR688076A (en)
GB (1) GB334777A (en)

Also Published As

Publication number Publication date
AT136576B (en) 1934-02-26
GB334777A (en) 1930-09-11
FR688076A (en) 1930-08-19
CH142803A (en) 1930-10-15

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