Title:
ALUMINIUM ALLOY FOR CASTING, HAVING HIGH RIGIDITY AND LOW LINER EXPANSION COEFFICIANT
Document Type and Number:
WIPO Patent Application WO/2005/090624
Kind Code:
A2
Abstract:
[Objectives] An aluminum alloy for casting that realizes high rigidity and a low linear expansion coefficient, and at the same time, does not have a high cost, and has few restrictions at the time of recycling. [Means for Achieving Objectives] An aluminum alloy for casting with excellent rigidity and having a low coefficient of linear expansion containing 13-25% by mass of silicon, 2-8% by mass of copper, 0.5-3% by mass of iron, 0.3-3% by mass of manganese, 0.001-0.02% by mass of phosphorus, and the remainder comprising aluminum and inevitable impurities, wherein the total amount of iron and manganese is 3.0% by mass or greater. Said alloy may further contain 0.5-6% by mass of nickel, and the total amount of iron, manganese, and nickel may be 3.0% by mass or greater. Further, said alloy may further contain one or more of 0.1-1.0% by mass of chromium, 0.05-1.5% by mass of magnesium, 0.01-1.0% by mass of titanium, 0.0001-1.0% by mass of boron, 0.1-1.0% by mass of zirconium, 0.1-1.0% by mass of vanadium, or 0.01-1.0% by mass of molybdenum.
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Inventors:
ODA KAZUHIRO (JP)
SHIODA MASAHIKO (JP)
SHIODA MASAHIKO (JP)
Application Number:
PCT/JP2005/005225
Publication Date:
September 29, 2005
Filing Date:
March 23, 2005
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
ODA KAZUHIRO (JP)
SHIODA MASAHIKO (JP)
ODA KAZUHIRO (JP)
SHIODA MASAHIKO (JP)
International Classes:
B22D11/06; B22D11/124; C22C21/02; C22C21/06; C22F1/05; B22D17/00; (IPC1-7): C22C21/02; B22D11/06; B22D17/00; C22C21/06; C22F1/05
Other References:
None
Attorney, Agent or Firm:
Sonoda, Yoshitaka (53rd Floor Shinjuku Mitsui Building, 1-1,
Nishi-Shinjuku 2-chom, Shinjuku-ku Tokyo 53, JP)
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