Title:
ALUMINUM ALLOY FOR CASTING AND HEAT TREATING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP3846149
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To provide an aluminum alloy for casting having excellent strength and toughness and hardly deteriorating strength and toughness in the high temperature environment and to provide a heat treating method therefor.
SOLUTION: A cast body haing a chemical composition containing, by weight, 0.5 to 1.5% Cu, 0.3 to 0.7% Mg and 6.5 to 7.5% Si, and the balance Al is subjected to stabilizing treatment to control its tensile strength to ≥320 MPa, and elongation to ≥5%. Moreover, the aging treatment temperature of the stabilizing treatment is controlled to 200 to 300°C, preferably, to 220 to 260°C, and the aging treatment time of the stabilizing treatment is controlled to be longer than the aging treatment time capable of obtaining the maximum strength.
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Inventors:
Shigeizumi, Takeshi
Uchida, Shiro
Mine, Kenichiro
Kumano, Masahiko
Toriyama, Satoru
Tsujimura, Akira
Kitamura, Makoto
Riyuu, Gogen
Ueno, Masami
Morita, Takayuki
Uchida, Shiro
Mine, Kenichiro
Kumano, Masahiko
Toriyama, Satoru
Tsujimura, Akira
Kitamura, Makoto
Riyuu, Gogen
Ueno, Masami
Morita, Takayuki
Application Number:
JP2000000083268
Publication Date:
September 01, 2006
Filing Date:
March 21, 2000
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
B60B3/00; C22C21/02; C22F1/00; C22F1/043; F02F1/00; F02M35/104; B60B3/00; C22C21/02; C22F1/00; C22F1/043; F02F1/00; F02M35/104; (IPC1-7): C22C21/02; B60B3/00; C22F1/043; F02F1/00; F02M35/104; //C22F1/00