Title:
ALUMINUM ALLOY CASTING HAVING SUPERIOR HIGH-TEMPERATURE STRENGTH AND THERMAL CONDUCTIVITY, METHOD FOR MANUFACTURING SAME, AND ALUMINUM ALLOY CASTING PISTON FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2016/167322
Kind Code:
A1
Abstract:
Provided is an aluminum alloy casting having superior high-temperature strength and thermal conductivity, a method for manufacturing the same, and an aluminum alloy casting piston for an internal combustion engine that uses the casting. This aluminum alloy casting has a chemical composition comprising 12.0-13.5% by mass of Si, 4.5-5.5% by mass of Cu, 0.6-1.0% by mass of Mg, 0.7-1.3% by mass of Ni, 1.15-1.25% by mass of Fe, 0.10-0.2% by mass of Ti, and 0.004-0.02% by mass of P, the remainder including Al and unavoidable impurities, and the long-axis length of Al-Fe-Si-based crystallized products is 100 μm or less on the basis of the average length of 10 crystallized products from the larger ones thereof, when observing an area of 0.2 mm2. Provided is an aluminum alloy casting piston for an internal combustion engine that comprises the aluminum alloy casting. Provided is a method for manufacturing the aluminum alloy casting in which a melt of the aluminum alloy casting having the aforementioned chemical composition is cast at a cooling speed of at least 100 degrees C/s and then subjected to an aging treatment.
Inventors:
YAMAMOTO IZUMI (JP)
ODA KAZUHIRO (JP)
KOJIMA HISAYASU (JP)
SATO NAOKO (JP)
WAKABAYASHI RYO (JP)
TANIHATA AKITO (JP)
ODA KAZUHIRO (JP)
KOJIMA HISAYASU (JP)
SATO NAOKO (JP)
WAKABAYASHI RYO (JP)
TANIHATA AKITO (JP)
Application Number:
PCT/JP2016/062027
Publication Date:
October 20, 2016
Filing Date:
April 14, 2016
Export Citation:
Assignee:
NIPPON LIGHT METAL CO (JP)
HONDA MOTOR CO LTD (JP)
HONDA MOTOR CO LTD (JP)
International Classes:
C22C21/02; B22D17/00; B22D27/04; B22D27/20; C22F1/043; C22F1/00
Domestic Patent References:
WO2012008470A1 | 2012-01-19 |
Foreign References:
JPH08134578A | 1996-05-28 | |||
JPS6473044A | 1989-03-17 |
Other References:
See also references of EP 3284840A4
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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