Invention Grant
- Patent Title: Clean aluminum alloys and methods for forming such alloys
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Application No.: US16391940Application Date: 2019-04-23
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Publication No.: US11597987B2Publication Date: 2023-03-07
- Inventor: Arvin Montes , Lance Johnson
- Applicant: Johnson Brass & Machine Foundry, Inc.
- Applicant Address: US WI Saukville
- Assignee: Johnson Brass & Machine Foundry, Inc.
- Current Assignee: Johnson Brass & Machine Foundry, Inc.
- Current Assignee Address: US WI Saukville
- Agency: Foley & Lardner LLP
- Main IPC: C22F1/047
- IPC: C22F1/047 ; C22C21/08 ; C25D11/04 ; C22F1/00 ; B22D13/04
Abstract:
A method comprises providing a molten aluminum alloy selected from the group consisting of 6000 series aluminum alloys comprises chromium (Cr) in a range of between 0.001 wt % to 0.05 wt %. The molten aluminum alloy is formed into a formed body having beta-AlFeSi particles. The formed body is solution heat treated at a temperature in a range of 1,025-1,050° F. to form a heat-treated body. The solution heat treating transforms substantially all of the beta-AlFeSi particles into alpha-AlFeSi particles such that the heat-treated body is substantially free of the beta-AlFeSi particles.
Public/Granted literature
- US20200056274A1 CLEAN ALUMINUM ALLOYS AND METHODS FOR FORMING SUCH ALLOYS Public/Granted day:2020-02-20
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