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Burnished layers are weak protective layers on ferrous surfaces in order to reduce a corrosion. By immersing the workpieces in acidic or alkaline solutions or molten salts to form mixed oxide layers of deep black color. Due to the small layer thickness, the burnished workpieces remain largely true to size.

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burnishing.txt · Last modified: 11.10.2021 17:01 (external edit)

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