CHEMICAL PROCESS FOR MATIFICATION
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United States of America Patent
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Issued Date -
Apr 30, 2020
app pub date -
Oct 25, 2019
filing date -
Oct 26, 2018
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Abstract
The invention relates to a method for mattifying a turbine engine part (10) comprising a metal material, the method comprising a step of immersing said part in a chemical bath (14) for mattifying said metal part (10), the bath (14) comprising at least sodium fluoride (NaF) and hydrofluoric (HF) acid, characterised in that the immersion step lasts between 2 and 15 minutes.
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