Invention Grant
- Patent Title: Method for producing shaped article of aluminum alloy, shaped aluminum alloy article and production system
- Patent Title (中): 铝合金成型件,成形铝合金制品及生产系统的生产方法
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Application No.: US10583040Application Date: 2004-12-17
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Publication No.: US08828157B2Publication Date: 2014-09-09
- Inventor: Yasuo Okamoto
- Applicant: Yasuo Okamoto
- Applicant Address: JP Tokyo
- Assignee: Showa Denko K.K.
- Current Assignee: Showa Denko K.K.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2003-421424 20031218; JP2004-067154 20040310
- International Application: PCT/JP2004/019460 WO 20041217
- International Announcement: WO2005/059195 WO 20050630
- Main IPC: C22F1/04
- IPC: C22F1/04 ; C22C21/02

Abstract:
A method for producing an aluminum-alloy shaped product, includes a step of forging a continuously cast rod of aluminum alloy serving as a forging material, in which the aluminum alloy contains Si in an amount of 10.5 to 13.5 mass %, Fe in an amount of 0.15 to 0.65 mass %, Cu in an amount of 2.5 to 5.5 mass % and Mg in an amount of 0.3 to 1.5 mass %, and heat treatment and heating steps including a step of subjecting the forging material to pre-heat treatment, a step of heating the forging material during a course of forging of the forging material and a step of subjecting a shaped product to post-heat treatment, the pre-heat treatment including treatment of maintaining the forging material at a temperature of −10 to 480° C. for two to six hours.
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