Title:
FILTER FOR ALUMINUM MELT
Document Type and Number:
WIPO Patent Application WO/2011/043150
Kind Code:
A1
Abstract:
A filter for aluminum melts is provided through which an agent for crystal-grain size reduction, such as TiB2, can pass in an adequate amount and which can remove other inclusions.
The filter for aluminum melts is obtained by bonding 100 parts by weight of aggregate particles comprising alumina with 5-20 parts by weight of an inorganic binder, and is characterized in that the binder comprises 7-15 wt.% SiO2, 40-60 wt.% B2O3, and 5-30 wt.% Al2O3 and that the filter contains 0.01-0.5 wt.% Na2O, 0.01-0.5 wt.% K2O, and 0.1-0.5 wt.% CaO.
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Inventors:
KAWAGUCHI, Kazuhiko (3-1, Asamuta-cho, Omuta-sh, Fukuoka 17, 〒8360817, JP)
Application Number:
JP2010/065376
Publication Date:
April 14, 2011
Filing Date:
September 08, 2010
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO.,LTD. (11-1, Osaki 1-chome Shinagawa-k, Tokyo 84, 〒1418584, JP)
三井金属鉱業株式会社 (〒84 東京都品川区大崎１丁目１１－１ Tokyo, 〒1418584, JP)
三井金属鉱業株式会社 (〒84 東京都品川区大崎１丁目１１－１ Tokyo, 〒1418584, JP)
International Classes:
B22D43/00; B22D21/04; B22C9/08; B22D18/04
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (6F. Akasaka 2-chome Annex, 19-8 Akasaka 2-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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