Powder product to protect moulds for the centrifugal casting of cast iron tubes and method of preparing this product
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United States of America Patent
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Jan 15, 2002
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N/A
app pub date -
Jan 5, 1999
filing date -
Jan 16, 1998
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Expired
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Abstract
Powder product for the protection of molds for centrifugal casting of cast iron tubes, and a method for its production. The powder contains a mixture of a silicon-based inoculating agent and a mineral powder, the silicon-based inoculating product comprising waste masses from synthesis of alkyl- or aryl- halosilanes, from which tin and optionally copper has been removed. The mineral powder may contain at least one material selected from the group consisting of carbon and a fluoride.
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