Protective coating for a ceramic surface in a casting tool
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United States of America Patent
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Oct 23, 2012
Grant Date -
Sep 3, 2009
app pub date -
Sep 7, 2006
filing date -
Sep 7, 2005
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Abstract
The invention relates to a ceramic surface in a casting tool, particularly a surface located outside the contouring region, which is exposed to a liquid or free-flowing aluminum material, wherein on at least one ceramic surface a layer is present consisting of an infiltration layer, diffused into the ceramic surface, structural parts in the form of Al2O3 and/or SiO2 and/or ZrO2 and/or TiO2 and a polymer of one or more polymerized phosphates and at least in sections enclosing the primary parts, the structural parts, and the sliding parts. Moreover, the invention relates to a parting agent and a method for preparing a layer of this type.
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