CH216204A - Aluminum alloy, especially for pistons in internal combustion engines. - Google Patents

Aluminum alloy, especially for pistons in internal combustion engines.

Info

Publication number
CH216204A
CH216204A CH216204DA CH216204A CH 216204 A CH216204 A CH 216204A CH 216204D A CH216204D A CH 216204DA CH 216204 A CH216204 A CH 216204A
Authority
CH
Switzerland
Prior art keywords
pistons
aluminum alloy
internal combustion
combustion engines
aluminum
Prior art date
Application number
Other languages
German (de)
Inventor
Kommanditgesellschaft Mahle
Original Assignee
Kommanditgesellschaft Mahle
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 Kommanditgesellschaft Mahle filed Critical Kommanditgesellschaft Mahle
Publication of CH216204A publication Critical patent/CH216204A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Sliding-Contact Bearings (AREA)

Description

  

  Aluminium-Legierung, insbesondere für Kolben von     Brennkraftmasehinen.       Die vorliegende Erfindung betrifft eine  Aluminiumlegierung, die zum Zwecke der  Härtung mindestens ein Schwermetall ent  hält. Sie ist insbesondere als Baustoff für die       Herstellung    von Körpern geeignet, welche  dem Verschleiss bei gleitender Reibung jeg  licher Art, also entweder als Lagerteil oder  als bewegter Teil, ausgesetzt sind. Insbeson  dere wird durch die Erfindung angestrebt.  Legierungszusammensetzungen zu     schaffen,     die neben einer guten     Abreibfestigkeit    hohe  Warmfestigkeit und ein sehr niedriges Ge  wicht aufweisen.

   Derartige Legierungen sind  vor allem wichtig für Kolben von     Brenn-          kraftmaschinen,    ferner für Lager und Lager  zapfen.  



  Es wurde gefunden, dass Aluminiumlegie  rungen, die ausser mindestens einem zum  Zwecke der Härtung     zugefügten    Schwer  metall noch 1-10 %     Lithium    enthalten, diese  Eigenschaften aufweisen.  



  Obwohl     Lithium    an der Luft rasch zer-    fällt, sind überraschenderweise derartige       Aluminium-Lithium--Legierungen    auch bei  höherem     Lithiumgehalt    sehr     beständig.    So  hat sich eine     Legierungsprobe    mit etwa 4       Lithium    über 3 Jahre gehalten, ohne zu     kor-          ro-dieren.    Der Vorzug der durch das leichte       Lithium        erreichten    Verminderung des spezi  fischen Gewichtes muss also nicht mit einer  Verschlechterung der sonstigen Eigenschaf  ten erkauft werden.  



  Zum Zweck der Härtung     können    die er  findungsgemässen Legierungen     beispielsweise     eines oder mehrere der Metalle Kupfer,  Nickel, Eisen, Kobalt, Chrom, Mangan,       Molybdän,        Ger    und-     Titan    in Mengen bis zu  insgesamt 12% enthalten.  



  Zwecks weiterer Verminderung des spezi  fischen Gewichtes können die     Legierungen     ausser den obengenannten Bestandteilen noch  weitere Elemente enthalten, deren spezifi  sches Gewicht     kleiner    ist als das des Alu  miniums, wie z. B. Magnesium, Silizium,      Kalzium, Beryllium und Bor. Die Silizium  enthaltenden Legierungen weisen ausser den  bereits aufgezählten Eigenschaften noch den  Vorzug erhöhter Verschleissfestigkeit auf.  Eine derartige Legierung kann z. B.  



  <B>3,5</B> %     Lithium     5 % Silizium  1 % Kupfer  1 % Nickel  Rest Aluminium  enthalten. Diese Legierung hat ein     spezifi,     sches Gewicht von nur 2,34. Derartig gün  stige Werte sind seither     bei    den bekannten       Aluminiumkolben-Legierungen    nicht erreicht    worden, denn bei diesen beträgt das spezi  fische Gewicht 2,7     bis    2,9.



  Aluminum alloy, especially for pistons in internal combustion engines. The present invention relates to an aluminum alloy which holds at least one heavy metal ent for the purpose of hardening. It is particularly suitable as a building material for the production of bodies which are exposed to wear and tear from sliding friction of any kind, either as a bearing part or as a moving part. In particular, is sought by the invention. To create alloy compositions which, in addition to good abrasion resistance, have high heat resistance and a very low weight.

   Such alloys are particularly important for pistons of internal combustion engines, and also for bearings and journals.



  It has been found that aluminum alloys which, in addition to at least one heavy metal added for hardening, also contain 1-10% lithium, have these properties.



  Although lithium disintegrates quickly in air, such aluminum-lithium alloys are surprisingly very stable even with a higher lithium content. An alloy sample with around 4 lithium has held up for 3 years without corroding. The advantage of the reduction in the specific weight achieved by the light lithium does not have to be bought at the expense of a deterioration in the other properties.



  For the purpose of hardening, the alloys according to the invention can contain, for example, one or more of the metals copper, nickel, iron, cobalt, chromium, manganese, molybdenum, ger and titanium in amounts up to a total of 12%.



  For the purpose of further reducing the specific weight, the alloys can contain other elements in addition to the above-mentioned components whose specific weight is smaller than that of the aluminum, such as. B. Magnesium, silicon, calcium, beryllium and boron. In addition to the properties already listed, the alloys containing silicon also have the advantage of increased wear resistance. Such an alloy can e.g. B.



  <B> 3.5 </B>% lithium 5% silicon 1% copper 1% nickel, the remainder aluminum. This alloy has a specific weight of only 2.34. Such favorable values have not since been achieved with the known aluminum piston alloys, because the specific weight of these is 2.7 to 2.9.

 

Claims (1)

PATENTANSPRUCH: Aluminiumlegierung, insbesondere für Kolben von Brennkraftmaschinen, die zum Zwecke der Härtung mindestens ein Schwer metall enthält, dadurch :gekennzeichnet, dass sie noch 1 bis 10 % Lithium enthält. UNTERANSPRUCH: Aluminiumlegierung nach Patentanspruch, dadurch gekennzeichnet, dass sie ausserdem weitere Elemente enthält, deren spezifisches Gewicht kleiner ist als das des Aluminiums. PATENT CLAIM: Aluminum alloy, in particular for pistons of internal combustion engines, which contains at least one heavy metal for the purpose of hardening, characterized in that it also contains 1 to 10% lithium. SUBSTANTIAL CLAIM: Aluminum alloy according to patent claim, characterized in that it also contains further elements whose specific weight is smaller than that of aluminum.
CH216204D 1937-10-29 1938-10-29 Aluminum alloy, especially for pistons in internal combustion engines. CH216204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE216204X 1937-10-29

Publications (1)

Publication Number Publication Date
CH216204A true CH216204A (en) 1941-08-15

Family

ID=5827966

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216204D CH216204A (en) 1937-10-29 1938-10-29 Aluminum alloy, especially for pistons in internal combustion engines.

Country Status (1)

Country Link
CH (1) CH216204A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1178218B (en) * 1956-11-23 1964-09-17 Pechiney Prod Chimiques Sa Easily processed and oxidation-resistant aluminum-lithium alloy
EP0088511A1 (en) * 1982-02-26 1983-09-14 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to aluminium alloys
FR2584095A1 (en) * 1985-06-28 1987-01-02 Cegedur AL ALLOYS WITH HIGH LI AND SI CONTENT AND METHOD OF MANUFACTURE
EP0210359A1 (en) * 1985-06-26 1987-02-04 BBC Brown Boveri AG Aluminium alloy for the manufacture of a powder having an increased heat resistance
EP0229218A1 (en) * 1985-12-23 1987-07-22 Aluminum Company Of America Aluminum-lithium alloys
WO1988003178A1 (en) * 1986-10-21 1988-05-05 The Secretary Of State For Defence In Her Britanni Rapid solidification route aluminium alloys containing lithium

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1178218B (en) * 1956-11-23 1964-09-17 Pechiney Prod Chimiques Sa Easily processed and oxidation-resistant aluminum-lithium alloy
EP0088511A1 (en) * 1982-02-26 1983-09-14 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to aluminium alloys
US4588553A (en) * 1982-02-26 1986-05-13 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Aluminium alloys
EP0210359A1 (en) * 1985-06-26 1987-02-04 BBC Brown Boveri AG Aluminium alloy for the manufacture of a powder having an increased heat resistance
US4765851A (en) * 1985-06-26 1988-08-23 Bbc Brown, Boveri & Company, Limited Aluminum alloy for the preparation of powders having increased high-temperature strength
FR2584095A1 (en) * 1985-06-28 1987-01-02 Cegedur AL ALLOYS WITH HIGH LI AND SI CONTENT AND METHOD OF MANUFACTURE
EP0208631A1 (en) * 1985-06-28 1987-01-14 Cegedur Societe De Transformation De L'aluminium Pechiney Aluminium alloys with a high lithium and silicon content, and process for their manufacture
EP0229218A1 (en) * 1985-12-23 1987-07-22 Aluminum Company Of America Aluminum-lithium alloys
WO1988003178A1 (en) * 1986-10-21 1988-05-05 The Secretary Of State For Defence In Her Britanni Rapid solidification route aluminium alloys containing lithium
GB2227496A (en) * 1986-10-21 1990-08-01 Secr Defence Brit Rapid solidification route aluminium alloys containing lithium
GB2227496B (en) * 1986-10-21 1991-04-24 Secr Defence Brit Rapid solidification route aluminium alloys containing lithium

Similar Documents

Publication Publication Date Title
DE2145710A1 (en) Wear-resistant copper-based alloy at high temperatures
CH216204A (en) Aluminum alloy, especially for pistons in internal combustion engines.
CH223580A (en) Copper-zinc alloy, especially for the manufacture of machine parts subject to sliding stress.
AT160440B (en) Heat-treatable magnesium alloy with aluminum and bismuth content.
CH148194A (en) Bearing metal.
DE2145690C3 (en) Wear-resistant copper-based alloy at high temperatures
DE3240041C2 (en) Use of a cast aluminum alloy
DE654175C (en) Use of aluminum alloy as a material for machine parts for sliding motion
DE675634C (en) Use of aluminum alloys for bearings
CH199536A (en) Aluminum alloy.
DE568268C (en) Bearing metal
DE361086C (en) Alloys of magnesium
DE551368C (en) Bronze alloy
DE943855C (en) Use of an aluminum alloy as the bearing metal
DE2058212A1 (en) Aluminum-zinc alloy
DE616338C (en) Nickel-silicon alloy with predominantly nickel content
DE2845917A1 (en) USE OF GRAY CAST IRON ALLOYS FOR THE PRODUCTION OF BOILERS FOR BOILING CONCENTRATED SULFURIC ACID
CH186606A (en) Material for machine parts with sliding movement.
DE739428C (en) Internal combustion engine pistons made of aluminum alloys
DE727815C (en) Piston made of a hypereutectic aluminum alloy
AT160600B (en) Magnesium alloy.
DE638095C (en) Use of an aluminum-magnesium-iron alloy as a material for machine parts with sliding movement
DE1238220B (en) Use of a copper-manganese-zinc alloy as a material for machine parts exposed to sliding stress
DE392022C (en) Magnesium alloys
DE678507C (en) Zinc alloy with low frictional resistance