PROTECTIVE SURFACE TREATMENT FOR METAL ALLOY COMPONENTS DURING MANUFACTURING AND THEREAFTER
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United States of America Patent
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Issued Date -
Nov 26, 2020
app pub date -
Aug 9, 2018
filing date -
Aug 10, 2017
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Abstract
A protective surface treatment in the form of a coating for steel or another metal or metal alloy capable of providing oxidation resistance in an inert gas furnace or air-containing furnace is provided. The coating is formed by a solution including at least one flux agent, such as boric acid, and at least one binder, such as polyvinylpyrrolidone (PVP), polyvinylpyrrolidone/vinyl acetate (PVP/VA), hydrooxypropylcellulose (HPC), ethylcellulose, and/or acrylics. The solution also includes at least one solvent, such as methanol or ethanol and can include various additives. The finished coating includes iron borate and provides a glassy surface.
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