Invention Grant
- Patent Title: Spherical casting sand
- Patent Title (中): 球形铸砂
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Application No.: US10537833Application Date: 2003-12-09
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Publication No.: US07673668B2Publication Date: 2010-03-09
- Inventor: Mikio Sakaguchi , Shigeo Nakai , Kazuhiko Kiuchi , Akira Doi
- Applicant: Mikio Sakaguchi , Shigeo Nakai , Kazuhiko Kiuchi , Akira Doi
- Applicant Address: JP Tokyo
- Assignee: Kao Corporation
- Current Assignee: Kao Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP.
- Priority: JP2002-357344 20021209
- International Application: PCT/JP03/15704 WO 20031209
- International Announcement: WO2004/052572 WO 20040624
- Main IPC: B22C1/00
- IPC: B22C1/00 ; B22C9/02
Abstract:
Molding sand having a high spherical degree and a low hygroscopicity produced from powder containing Al2O3 and SiO2, as main components by a flame fusion method, from which a mold having an excellent strength and a smooth surface is produced.
Public/Granted literature
- US20060005937A1 Spherical casting sand Public/Granted day:2006-01-12
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